NetComm NTC-100 User manual

User Guide
4G LTE Cat M1/NB1 Industrial IoT Serial Modem
Doc No. UG01037

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Important Notice
This device, like any wireless device, operates using radio signals which cannot guarantee the transmission and
reception of data in all conditions. While the delay or loss of signal is rare, you should not rely solely on any
wireless device for emergency communications or otherwise use the device in situations where the interruption of
data connectivity could lead to death, personal injury, property damage, data loss, or other loss. NetComm
Wireless accepts no responsibility for any loss or damage resulting from errors or delays in transmission or
reception, or the failure of the NTC-100 to transmit or receive such data.
Safety and Hazards
Do not connect or disconnect cables or devices to or from the USB port, SIM card tray, Ethernet port or the terminals of the Molex power
connector in hazardous locations such as those in which flammable gases or vapours may be present, but normally are confined within
closed systems; are prevented from accumulating by adequate ventilation; or the location is adjacent to a location from which ignitable
concentrations might occasionally be communicated.
Copyright
Copyright© 2018 NetComm Wireless Limited. All rights reserved.
The information contained herein is proprietary to NetComm Wireless. No part of this document may be
translated, transcribed, reproduced, in any form, or by any means without prior written consent of NetComm
Wireless.
Trademarks and registered trademarks are the property of NetComm Wireless Limited or their respective owners.
Specifications are subject to change without notice. Images shown may vary slightly from the actual product.
Note –This document is subject to change without notice.
Save our environment
When this equipment has reached the end of its useful life, it must be taken to a recycling centre and processed
separately from domestic waste.
The cardboard box, the plastic contained in the packaging, and the parts that make up this device can be recycled
in accordance with regionally established regulations. Never dispose of this electronic equipment along with
domestic waste. You may be subject to penalties or sanctions under the law. Instead, ask for disposal instructions
from your municipal government.
Please be responsible and protect our environment.

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Document history
This guide covers the following products:
NetComm - 4G LTE Cat M1/NB1 Industrial IoT Serial Modem
VER.
DOC U M E N T D E S C R I P T I O N
D A T E
v1.0
Initial document release
24 July 2018
v1.1
•Added relevant Quectel AT command list
•Added common scenario configurations for PPP and PAD mode
•Added note to AT+APN command
•Corrected NanoFit cable diagram
•Correction to AT+PDP_TYPE options
•Correction to AT+SMS_PASSWORD command
•Corrections to
oFAQs
oApplication firmware upgrade Over the Air from HTTP/S server using
SMS
oApplication firmware upgrade Over the Air from an HTTP/S server
using Customized AT command
oModule firmware upgrade Over the Air from an HTTP/S server using
SMS
25 September 2018
Table i. - Document revision history

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Contents
Introduction.......................................................................................................................................................................9
Target users ....................................................................................................................................................................................................................9
Prerequisites ...................................................................................................................................................................................................................9
Notation ..........................................................................................................................................................................................................................9
Safety and product care ...................................................................................................................................................10
Transport and handling....................................................................................................................................................10
Product introduction ........................................................................................................................................................11
Product features ...........................................................................................................................................................................................................11
Connect legacy equipment..................................................................................................................................................................................11
Network and service flexibility.............................................................................................................................................................................11
Universal installation .............................................................................................................................................................................................11
Custom application...............................................................................................................................................................................................11
SMS control............................................................................................................................................................................................................11
Package contents.............................................................................................................................................................12
Accessories ...................................................................................................................................................................................................................12
Physical dimensions and indicators...................................................................................................................................13
LED indicators...............................................................................................................................................................................................................13
Signal strength.......................................................................................................................................................................................................13
Physical dimensions .........................................................................................................................................................14
Interfaces.........................................................................................................................................................................15
Hardware installation .......................................................................................................................................................16
Connecting the antenna..............................................................................................................................................................................................16
Inserting the SIM card .................................................................................................................................................................................................16
Mounting the device........................................................................................................................................................18
Connecting the data/power cables ...........................................................................................................................................................................19
Powering the NTC-100 serial modem via 5V Micro USB socket.............................................................................................................................19
Powering the NTC-100 serial modem via Y-cable....................................................................................................................................................20
Accessing the NTC-100 via terminal emulator ..................................................................................................................21
Command Line Interface Guide........................................................................................................................................22
PPP Mode......................................................................................................................................................................................................................22
Configuring PPP mode with SMS commands....................................................................................................................................................22
Configuring PPP mode with AT commands.......................................................................................................................................................23
PAD Mode ....................................................................................................................................................................................................................23
Configuring PAD mode with SMS.......................................................................................................................................................................24
Configuring PAD mode with AT commands .....................................................................................................................................................24
Command Line List ..........................................................................................................................................................25
AT+ALL..........................................................................................................................................................................................................................25
AT+APN ........................................................................................................................................................................................................................25
AT+APN_SEP ...............................................................................................................................................................................................................25
AT+AUTH_TYPE...........................................................................................................................................................................................................26

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AT+CFUN .....................................................................................................................................................................................................................26
AT+CHAR_TIMEOUT ..................................................................................................................................................................................................27
AT+DAILY_SMS_LIMIT................................................................................................................................................................................................27
AT+DNS........................................................................................................................................................................................................................27
AT+DYN_ENABLE .......................................................................................................................................................................................................28
AT+DYN_HOST ...........................................................................................................................................................................................................28
AT+DYN_PASS.............................................................................................................................................................................................................28
AT+DYN_USER ............................................................................................................................................................................................................28
AT+EOL.........................................................................................................................................................................................................................29
AT+FACTORY_RESET.................................................................................................................................................................................................29
AT+FAIL_COUNT ........................................................................................................................................................................................................30
AT+FORCE_RECONNECT .........................................................................................................................................................................................30
AT+FORCE_RESET......................................................................................................................................................................................................30
AT+FTP_FILE................................................................................................................................................................................................................31
AT+FTP_HOST.............................................................................................................................................................................................................31
AT+FTP_PARA..............................................................................................................................................................................................................31
AT+FTP_PASS ..............................................................................................................................................................................................................31
AT+FTP_PATH .............................................................................................................................................................................................................32
AT+FTP_RETRY............................................................................................................................................................................................................32
AT+FTP_UPLOAD=1 ...................................................................................................................................................................................................32
AT+FTP_USER..............................................................................................................................................................................................................32
AT+HISTORY................................................................................................................................................................................................................33
AT+HW_VERSION .......................................................................................................................................................................................................33
AT+IMEI ........................................................................................................................................................................................................................33
AT+IPV4_MTU ..............................................................................................................................................................................................................33
AT+IPV6_MTU ..............................................................................................................................................................................................................34
AT+LOCAL_IP ..............................................................................................................................................................................................................34
AT+LOGIN_PASS.........................................................................................................................................................................................................34
AT+LOGIN_USER ........................................................................................................................................................................................................34
AT+MODEM_MODE...................................................................................................................................................................................................35
AT+MODULE_WATCHDOG ......................................................................................................................................................................................35
AT+NO_WHITELIST ....................................................................................................................................................................................................35
AT+NON_REBOOT.....................................................................................................................................................................................................36
AT+PAD ........................................................................................................................................................................................................................36
AT+PAKBUS .................................................................................................................................................................................................................37
AT+PDP_TYPE..............................................................................................................................................................................................................37
AT+PING.......................................................................................................................................................................................................................37
AT+PING_ACC_TIMER ...............................................................................................................................................................................................38
AT+PING_IP1................................................................................................................................................................................................................38
AT+PING_IP2................................................................................................................................................................................................................38
AT+PING_TIMER .........................................................................................................................................................................................................38
AT+PING_WATCHDOG .............................................................................................................................................................................................39
AT+REPLY_CMD_ERROR ...........................................................................................................................................................................................39
AT+SAVE.......................................................................................................................................................................................................................39
AT+SERIAL_BAUD.......................................................................................................................................................................................................40
AT+SERIAL_FLOW.......................................................................................................................................................................................................40
AT+SERIAL_FORMAT .................................................................................................................................................................................................41
AT+SERIAL_MODE......................................................................................................................................................................................................41
AT+SERIAL_ON_START..............................................................................................................................................................................................42
AT+SERIAL_PARITY.....................................................................................................................................................................................................42
AT+SERVER ..................................................................................................................................................................................................................43
AT+SMS ........................................................................................................................................................................................................................43
AT+SMS_ACK...............................................................................................................................................................................................................44
AT+SMS_DIAGNOSTICS............................................................................................................................................................................................44
AT+SMS_PASSWORD.................................................................................................................................................................................................45

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AT+STATUS..................................................................................................................................................................................................................45
AT+STATUS_FORMAT................................................................................................................................................................................................45
AT+TCP_RETRY ...........................................................................................................................................................................................................46
AT+TCP_TIMEOUT......................................................................................................................................................................................................46
AT+USER_PASS ...........................................................................................................................................................................................................47
AT+VERSION................................................................................................................................................................................................................47
AT+WEB_FILE ..............................................................................................................................................................................................................47
AT+WEB_HOST ...........................................................................................................................................................................................................47
AT+WEB_PASS ............................................................................................................................................................................................................48
AT+WEB_PATH............................................................................................................................................................................................................48
AT+WEB_PORT............................................................................................................................................................................................................48
AT+WEB_RETRY ..........................................................................................................................................................................................................48
AT+WEB_UPLOAD......................................................................................................................................................................................................49
AT+WEB_USER ............................................................................................................................................................................................................49
AT+WHITELIST.............................................................................................................................................................................................................49
Quectel AT Command List ...............................................................................................................................................50
AT+CEREG EPS Network Registration Status .........................................................................................................................................................50
AT+CGATT Attachment or Detachment of PS........................................................................................................................................................52
AT+CLCK Facility Lock ...............................................................................................................................................................................................53
AT+COPS Operator Selection ..................................................................................................................................................................................56
AT+CPIN Enter PIN ....................................................................................................................................................................................................58
AT+GSN Request International Mobile Equipment Identity (IMEI) ......................................................................................................................60
AT+QCFG="band” Band Configuration.................................................................................................................................................................61
AT+QCFG="celevel" Get LTE Cat NB1 Coverage Enhancement Level .............................................................................................................63
AT+QCFG="iotopmode" Configure Network Category to be Searched under LTE RAT ...............................................................................64
AT+QCFG="nwscanmode" Network Search Mode Configuration .....................................................................................................................65
AT+QCFG="nwscanseq" Network Searching Sequence Configuration.............................................................................................................66
AT+QCFG="PDP/DuplicateChk" Establish Multi PDNs with the Same APN.....................................................................................................66
AT+QCSQ Query and Report Signal Strength........................................................................................................................................................67
AT+QNWINFO Query Network Information...........................................................................................................................................................69
AT+QSPN Display the Name of Registered Network ............................................................................................................................................71
AT+QSPN* Display the Name of Registered Network ..........................................................................................................................................72
AT+CVERSION Display module firmware version ..................................................................................................................................................72
General Operation...........................................................................................................................................................73
PAD mode.....................................................................................................................................................................................................................73
PPP mode......................................................................................................................................................................................................................73
PSTN mode...................................................................................................................................................................................................................73
Configuration through SMS..............................................................................................................................................74
execute clear..........................................................................................................................................................................................................74
execute factory_reset ...........................................................................................................................................................................................74
execute pdpcycle ..................................................................................................................................................................................................74
execute pdpdown .................................................................................................................................................................................................74
execute pdpup ......................................................................................................................................................................................................74
execute reboot ......................................................................................................................................................................................................74
execute save ..........................................................................................................................................................................................................74
get apn ...................................................................................................................................................................................................................74
get apn_sep...........................................................................................................................................................................................................74
get ccid...................................................................................................................................................................................................................75
get daily_sms_limit................................................................................................................................................................................................75
get fail_count.........................................................................................................................................................................................................75
get force_reconnect..............................................................................................................................................................................................75
get force_reset ......................................................................................................................................................................................................75
get ftp_para ...........................................................................................................................................................................................................75
get hw_version.......................................................................................................................................................................................................75

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get imei ..................................................................................................................................................................................................................75
get modem_mode ................................................................................................................................................................................................75
get module_watchdog .........................................................................................................................................................................................75
get pdp_type.........................................................................................................................................................................................................76
get ping_acc_timer ...............................................................................................................................................................................................76
get ping_ip1...........................................................................................................................................................................................................76
get ping_ip2...........................................................................................................................................................................................................76
get ping_timer.......................................................................................................................................................................................................76
get ping_watchdog...............................................................................................................................................................................................76
get ping=[domain name / IP address]................................................................................................................................................................76
get serial_on_start.................................................................................................................................................................................................76
get settings ............................................................................................................................................................................................................76
get status................................................................................................................................................................................................................76
get version .............................................................................................................................................................................................................77
get web_file ...........................................................................................................................................................................................................77
get web_host .........................................................................................................................................................................................................77
get web_pass.........................................................................................................................................................................................................77
get web_path.........................................................................................................................................................................................................77
get web_port .........................................................................................................................................................................................................77
get web_retry.........................................................................................................................................................................................................77
get web_user .........................................................................................................................................................................................................77
serv=xxxx................................................................................................................................................................................................................77
set apn_sep............................................................................................................................................................................................................78
set apn+=xxxxx .....................................................................................................................................................................................................78
set apn=xxxxx........................................................................................................................................................................................................78
set at=xxxx .............................................................................................................................................................................................................78
set auth_type=x.....................................................................................................................................................................................................78
set baud=xxx .........................................................................................................................................................................................................78
set daily_sms_limit=xxx ........................................................................................................................................................................................78
set dyn_enable=0,1...............................................................................................................................................................................................78
set dyn_host=xxx ..................................................................................................................................................................................................78
set dyn_pass=xxx ..................................................................................................................................................................................................78
set dyn_user=xxx...................................................................................................................................................................................................79
set fail_count..........................................................................................................................................................................................................79
set force_reconnect=xxx......................................................................................................................................................................................79
set force_reset=xxxxx ...........................................................................................................................................................................................79
set ftp_file=xxx ......................................................................................................................................................................................................79
set ftp_host=xxx....................................................................................................................................................................................................79
set ftp_pass=xxx....................................................................................................................................................................................................79
set ftp_path=xxx....................................................................................................................................................................................................79
set ftp_retry=xxx....................................................................................................................................................................................................79
set ftp_user=xxx ....................................................................................................................................................................................................79
set ipv4_mtu...........................................................................................................................................................................................................79
set ipv6_mtu...........................................................................................................................................................................................................80
set modem_mode=x ............................................................................................................................................................................................80
set module_watchdog..........................................................................................................................................................................................80
set no_whitelist=x .................................................................................................................................................................................................80
set non_reboot=0,1 ..............................................................................................................................................................................................80
set pad=0,1,2,3,4...................................................................................................................................................................................................80
set pdp_type=xxx .................................................................................................................................................................................................80
set pdpauth=<username>,<password> ............................................................................................................................................................80
set ping_acc_timer................................................................................................................................................................................................80
set ping_ip1 ...........................................................................................................................................................................................................80
set ping_ip2 ...........................................................................................................................................................................................................80
set ping_timer........................................................................................................................................................................................................81
set ping_watchdog=0,1........................................................................................................................................................................................81
set reply_cmd_error=x .........................................................................................................................................................................................81
set serial_mode .....................................................................................................................................................................................................81
set serial_on_start=0,1..........................................................................................................................................................................................81
set server= ip address/hostname, port ..............................................................................................................................................................81
set sms=XXXXXXXXXX,”message content” ......................................................................................................................................................81
set smspassword=XXXXXX ..................................................................................................................................................................................81
set web_file............................................................................................................................................................................................................81
set web_host..........................................................................................................................................................................................................81
set web_pass..........................................................................................................................................................................................................82
set web_path .........................................................................................................................................................................................................82

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set web_port..........................................................................................................................................................................................................82
set web_retry .........................................................................................................................................................................................................82
set web_upload=1,2 .............................................................................................................................................................................................82
set web_user..........................................................................................................................................................................................................82
set whitelist=+XXXXXXXXXXX.............................................................................................................................................................................82
Upload....................................................................................................................................................................................................................82
Updating the application firmware ...................................................................................................................................83
Via Local PC ..................................................................................................................................................................................................................83
Pre-requisites for application firmware installation:..........................................................................................................................................83
Over the Air (OTA) .......................................................................................................................................................................................................85
Updating the module firmware.........................................................................................................................................89
Via Local PC ..................................................................................................................................................................................................................89
Pre-requisites for module firmware installation:................................................................................................................................................89
Over the Air (OTA) .......................................................................................................................................................................................................92
Pre-requisites for Module Firmware Over the Air Upgrade:............................................................................................................................92
NanoFit to DE-9 Serial/Power Adapter Cable ...................................................................................................................95
Electrical Specifications...............................................................................................................................................................................................95
Environmental Specifications / Tolerances ...............................................................................................................................................................96
Product Service and Support............................................................................................................................................97
Troubleshooting ..............................................................................................................................................................97
FAQs...............................................................................................................................................................................98
Appendix A: Tables .........................................................................................................................................................99

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Introduction
This document details the process of configuring the NTC-100 device via a terminal emulation program (such as
PuTTY) as well as mounting and deployment advice.
Target users
This document is intended for system integrators or experienced hardware installers who are comfortable with all
aspects of IP based networking and possess an understanding of serial-based technologies such as dial-up
modems, AT commands and legacy data collection devices.
Prerequisites
A computer with a terminal emulation program (such as PuTTY), a serial port, an appropriate power supply and a
device to connect to the NTC-100 modem after configuration has been completed. A SIM card in 2FF format is
required for cellular connection.
Notation
The following symbols are used in this user guide:
The following note provides useful information.
The following note requires attention.
The following note provides a warning.

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Safety and product care
The NTC-100 offers a hardened industrial enclosure making it suitable for a variety of remote deployment
locations.
With reference to the unpacking, installation, use and maintenance of your electronic device, the following basic
guidelines are recommended:
Installation, configuration and disassembly should be performed by trained personnel only.
Do not use or install this product near water to avoid fire or shock hazard. Avoid exposing the equipment to
rain or damp areas.
Do not use or install this product in extremely hot or cold areas. Ensure that the device is installed in an area
where the temperature is within the supported operating temperature range (-30°C to 70°C).
Arrange any cables in a manner such that they are not likely to be stepped on or have items placed on them.
Ensure that the voltage and rated current of the power source match the requirements of the device. Do not
connect the device to an inappropriate power source.
Use only a clean, dry cloth to wipe the device. Never apply chemical cleaners on the device.
WARNING
Disconnect the power line from the device before servicing.
Transport and handling
When transporting the NTC-100, we recommend using the original packaging. This ensures the product will not be
damaged.
Important –In the event that the product needs to be returned, ensure it is securely packaged with appropriate padding to prevent damage
during courier transport.

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Product introduction
Product features
The NTC-100 is a rugged 4G LTE Cat M1/NB1 Industrial IoT Serial Modem that enables wireless data
communication and supports SCADA (Supervisory Control and Data Acquisition) systems. It comes equipped with
RS232 serial data connectivity and a Micro USB 2.0 port for the real-time monitoring and control of machines in
remote locations.
Connect legacy equipment
Avoid the cost of replacing or upgrading existing assets that run critical processes. The cost-effective NTC-100
sends data to any IP enabled device using RS-232 serial data. Ideal for SCADA use in areas such as manufacturing,
utilities, construction and agriculture, the NTC-100 enables the remote collection, monitoring and control across a
wide range of IoT applications.
Network and service flexibility
Featuring a multi-mode data module, the NTC-100 supports remote deployments and allows you to choose
between a variety of Cat M1/NB1 IoT networks.
Universal installation
Deploy IoT applications in any environment with access to a wide input voltage range, extreme temperature
tolerance (-30˚C to 70˚C) and a lockable SIM tray. For easy installation, the compact NTC-100 also includes a DIN
rail and flexible wall mount options including a removable mounting bracket.
Custom application
Take advantage of the custom NetComm Wireless application with the capacity to: transparently transfer serial
port traffic over the Internet via TCP or UDP using the built-in Packet Assembler and Disassembler (PAD)
functionality; configure a periodic reboot to ensure the modem is always accessible and connect to a DynDNS
account to update the NTC-100’s IP address when not using a static IP address.
SMS control
Reduce onsite visits and save costs using advanced diagnostics and control via SMS to query status information
and settings, execute commands and configure settings.

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Package contents
The NTC-100 package includes:
1 x NTC-100 serial modem
1 x Y-cable (Nano-fit to DE-9 and DC power input)
1 x DIN rail mounting bracket
1 x Torx screw
1 x Quick start guide
If any of these items are missing or damaged, please contact NetComm Support immediately by visiting the
NetComm Support website at: http://support.netcommwireless.com/ .
Accessories
Additional cables are available for purchase separately. Contact your NetComm Wireless sales representative to
order additional cables. Refer to the table below for the product codes.
A C C E S S O R Y N A M E
P R O D U C T C O D E
Y-Cable (DE-9 female to 10-pin +
DC5521 female)
MCBL-00004
Straight cable (10-pin Nano to 8P8C)
MCBL-00003
Straight cable (10-pin Nano to open
cable)
MCBL-00005

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Physical dimensions and indicators
LED indicators
The NTC-100 serial modem uses two LEDs to display the current system and connection status.
L E D
I N D I C A T O R
S T A T U S
D E S C R I P T I O N
Status
Off
The power is off.
Flashing Red
Device error.
Flashing Green
The NTC-100 is powering up.
Solid Green
The NTC-100 is powered up and connected to network.
Network
Off
No signal.
Intermittently Red (on 30 seconds,
off 30 seconds)
No SIM detected.
Blinking Red (displays red once
every 2 seconds)
SIM detected but not connected, e.g. SIM is PIN locked.
Blinking Red, Amber or Green
Registered to network with poor (red), medium (amber) or
strong (green) signal strength.
Flashing Red, Amber or Green
Data being transferred with poor (red), medium (amber) or
strong (green) signal strength.
Table 1 - LED indicators
Note: The term “blinking”means that the LED turns on for 2 seconds and then off for 0.5 seconds, while the term “flashing” means the LED
turns on for 100ms and off for 100ms.
Signal strength
The table below provides more detail on the signal strength indicated by the colour of the network LED.
N E T W O R K L E D
G S M
" C A T - M 1 " O R " C A T - N B 1 "
Green
RSSI > - 87 dBm
RSRP (value 2)>-90 dBm
Amber
-87>=RSSI>-93
-90 ≥RSRP > -100
Red
-93>=RSSI>-109
-120<RSRP≤-100
Off
RSSI < = -109 or No Sync to signal
RSRP≤-120 or No Sync to signal
Table 2 - Signal strength

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Physical dimensions
Below are the physical dimensions of the NTC-100 as well as the physical dimensions of the mounting bracket
which can be used to attach the NTC-100 to a Type-O DIN Rail or to provide a wall / ceiling mount.
Figure 1 –NTC-100 Dimensions
N T C - 1 0 0 D I M E N S I O N S
Length
80 mm
Width
50 mm
Depth
20 mm
Weight
60 grams (without mounting bracket and antenna)
Table 3 –NTC-100 Dimensions

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Interfaces
The following interfaces are available on the NTC-100:
#
I N T E R F A C E
F U N C T I O N
1
10-pin Nano-Fit™ connector
Provides a serial interface via a standard
Windows modem for AT command
communication and dial-up networking. The
serial modem may also be powered from this
interface using the Y-cable. Refer to the
Technical Data section of this manual for more
information.
2
Micro USB 2.0 port
Provides a serial interface via a virtual COM
port for AT command communication and dial-
up networking. Requires that the Quectel driver
is installed. The NTC-100 may be powered
from the Micro USB 2.0 port.
3
Reset button
The reset button is multifunctional and can be
used to reboot to the main operating system,
reboot to recovery or reset the device to
factory default settings.
Press and hold the reset button for less than 5
seconds to reboot the device in normal mode.
The Status LED flashes green for 5 seconds and
then the device reboots.
Press and hold the reset button for between 5
and 15 seconds to reboot to recovery mode.
The Status LED flashes amber for 5 seconds
then the device reboots into recovery mode.
Press and hold the reset button for between 15
and 20 seconds to reset the device to factory
default settings. The Status LED flashes red for
5 seconds then the device reboots with factory
default settings.
4
SIM card slot
Push-push SIM connector compatible with 2FF
format SIM cards.
5
Cellular antenna socket
SMA Female connector for use with a suitable
LTE antenna.
Table 4 - Interfaces
Note –The driver required for the Micro USB virtual COM port is available from the NTC-100 Product Support page at:
http://support.netcommwireless.com/product/m2m/NTC-100.

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Hardware installation
Connecting the antenna
Connect the antenna to the SMA connector on the NTC-100 serial modem by placing it on the SMA connector and
turning it in a clockwise direction.
Inserting the SIM card
Ensure that the NTC-100 is not connected to the power cable before proceeding.
Lift the cover from the right side. This reveals the Micro USB 2.0 port and the reset button.
Figure 2 –Opening the side panel
Slide the cover to the right to reveal the SIM card slot.
Figure 3 –Revealing the SIM card slot

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Insert the SIM card into the slot with the gold SIM conductor pins facing down. Push the SIM card in until it
locks in place. To remove the SIM card, push it in again and it will unlock.
Figure 4 - Inserting a SIM card into the NTC-100 SIM card slot
Slide the cover back to the left and then push the right side closed.
To lock the protective cover, fasten the provided Torx screw into the hole below the SIM card slot on the
bottom of the device using a T6 Torx driver.
Figure 5 –Securing the SIM card slot

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Mounting the device
The NTC-100 can be mounted on the wall or a DIN rail by using the mounting bracket. The mounting bracket is
made from polyamide, which is a flexible material.
DIN rail mounting
The NTC-100 serial modem mounting bracket has been designed to fit a TS 35 Type-O DIN rail with a 25mm core.
Bend the mounting bracket at the bend line so that the ridges are able to ‘hold’ onto the DIN rail edges as per the
diagram below. Alternatively, if the end of the DIN rail is open, you can slide the bracket on to the rail. You also
have the option of securing the mounting bracket further by screwing it into place on the rail.
Figure 6 –DIN rail mounting
Wall mounting
Select the location where you would like to attach the NTC-100 serial modem. Attach the mounting bracket to the
chosen wall or ceiling by using the 3 screw holes (screws not included).
Figure 7 –Wall mounting

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Connecting the data/power cables
The NTC-100 serial modem may be connected and powered by:
The built-in 5V Micro USB socket (USB cable not included)
OR
The 10-pin power/data connector using the included Y-cable.
Powering the NTC-100 serial modem via 5V Micro USB
socket
The NTC-100 serial modem features a USB port which can optionally be used for serial connectivity, terminal
emulation, firmware installation or for establishing a PPP internet connection. The USB port enumerates a number
of endpoints after the USB port driver is installed.
Connect a standard USB Type A to USB Micro Type B cable (not included) between the NTC-100 serial
modem and a powered USB port on your device (e.g. computer). The USB cable provides the NTC-100 serial
modem with power and an emulated serial port input.
Figure 8 –Inserting the USB cable
For USB port communication, you must install a driver compatible with the NTC-100 serial modem’s
embedded Quectel BG96 cellular module. The Windows drivers are available from the NTC-100 serial
modem product page on the NetComm Wireless website (https://www.netcommwireless.com/product/ntc-
100) or from the Quectel website.
After the download has completed, install the driver by double-clicking on the downloaded file and
following the installer prompts.
Open the Control Panel and then Device Manager. The NTC-100 serial modem appears under Ports with
three Quectel USB entries.

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The COM port used for each port is displayed in brackets next to each port type. For terminal access, take
note of the COM port assigned to the Quectel USB AT Port. In the screenshot above, it is COM11.For
further instructions, see the Accessing the NTC-100 via terminal emulator section of this guide.
Important –It is not possible to use the mini-USB and Serial connection concurrently. Make sure any open connection on the Serial port is
disabled before connecting via the mini-USB cable.
Powering the NTC-100 serial modem via Y-cable
The included Y-cable features a breakout cable providing a DC Jack. Connect the Serial plug to a Serial port on
your device (e.g. computer) and then connect a 5-36V power source to the DC Jack to power the unit. Connect the
10-pin plug into the 10-pin connector on the NTC-100 serial modem.
Figure 9 –Powering the NTC-100 serial modem via Y-cable
After powering up, the NTC-100 serial modem is ready to establish a serial communication link. See the next
section for instructions on accessing the NTC-100 serial modem via terminal emulator.