MLis MLB-G1101 User manual

MLB-G1101 DTU User Guide 1 Rev 1.1
MLB-G1101 DTU
User Guide
MLiS Basic DTU 2G/3G
Model Number:
MLB-G1101

MLB-G1101 DTU User Guide 2 Rev 1.1
Information provided by Schmidt & Co., (HK) Ltd, (herein known as ‘the company’), is believed to be
accurate and reliable. However, the company assumes no responsibility for its use, nor any
infringement of patents or other rights of third parties, which may result from its use. No license is
granted by implication or otherwise under any patent rights of the company other than for circuitry
embodied in the company’s products. The company reserves the right to change the circuitry and
specifications at any time without notice. This document is subject to change without notice.
No part of this document may be reproduced or transmitted in any form or by any means, electronic or
mechanical, including but not limited to photocopying, recording, transmitting via fax and/or modem
devices, scanning, and/or information storage and retrieval systems for any purpose without the
expressed written consent of the company.
WARNING: The MLiS GSM DTU is a RF product intended for interfacing and operating with a host
device. Local relevant RF regulations such as allowed frequencies and usage in commercial flights
must be observed. Safety instructions must be included in the manuals of the host device. Schmidt &
Co., (HK) Ltd assumes NO liability for customers, who fail to comply with these precautions.
Service and Support
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Download Information
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MLB-G1101 DTU User Guide 3 Rev 1.1
Revision History
Version
Date
Description
1.0
Mar 2014
1st Release
1.1
April 2014
2nd Release

MLB-G1101 DTU User Guide 4 Rev 1.1
CONTENTS
1INTRODUCTION............................................................................................................................ 7
1.1 Description............................................................................................................................. 7
1.2 Highlights ............................................................................................................................... 7
1.3 Functional Block diagram.......................................................................................................9
1.4 Main Features and Services................................................................................................. 10
1.4.1 Operating Modes.............................................................................................................. 10
1.4.2 DTU Features and Electrical Specifications...................................................................... 11
1.5 Precautions.......................................................................................................................... 12
2MECHANICAL DESCRIPTION..................................................................................................... 13
2.1 Overview.............................................................................................................................. 13
2.2 Dimensions .......................................................................................................................... 13
3ELECTRICAL INTERFACE DESCRIPTIONS............................................................................... 14
3.1 Right side view (DB9 connector) .......................................................................................... 14
3.2 Left side view (DC Jack & Industry connector)...................................................................... 15
3.3 Frond view (Antenna & LED )............................................................................................... 15
3.4 SIM card holder.................................................................................................................... 16
4OPERATING NOTE...................................................................................................................... 17
4.1 Power on the Modem ........................................................................................................... 17
4.2 Reset to default.................................................................................................................... 17
4.3 External input x2................................................................................................................... 17
4.4 External Relay x1................................................................................................................. 17
4.5 DB9 Connector..................................................................................................................... 17
4.6 Install SIM card..................................................................................................................... 17

MLB-G1101 DTU User Guide 5 Rev 1.1
5SCHMIDT Protocol....................................................................................................................... 18
6SALES CONTACT........................................................................................................................ 51
7ORDERING INFORMATION......................................................................................................... 52

MLB-G1101 DTU User Guide 6 Rev 1.1
List of Figures
Figure 1: Functional Block Diagram for MLB-G1101..............................................................................9
Figure 2: Chassis Dimension for MLB-G1101...................................................................................... 13
Figure 3:RS232/RS422/RS485 for MLB-G1101................................................................................... 14
Figure 4: DC and Industry connector for MLB-G1101.......................................................................... 15
Figure 5: Antenna Connector for MLB-G1101...................................................................................... 15
Figure 6: SIM Card Holder for MLB-G1101.......................................................................................... 16
Figure 7: Binary Protocol Exchange..................................................................................................... 18
List of Tables
Table 1: Operating Modes ................................................................................................................... 10
Table 2: Features and Specifications................................................................................................... 11
Table 3: Chassis Dimensions and Mechanical Description for MLB-G1101......................................... 13
Table 4: DB9 pins define for MLB-G1101............................................................................................. 14
Table 5: Interfaces and Indicators Description of MLB-G1101 ............................................................. 15
Table 6: LED functions of MLB-G1101................................................................................................. 16
Table 7: General message structure.................................................................................................... 19
Table 8: link control characters set....................................................................................................... 20

MLB-G1101 DTU User Guide 7 Rev 1.1
1 INTRODUCTION
1.1 Description
The MLiS MLB-G1101 is a Dual Band 2G/3G DTU designed for RS232/RS422/RS485 communication
over TCP/IP via any readily available 2G/3G carrier network. Overall, it is more cost and time effective
to use remote solutions to combine Machine to Machine over diverse locations without having first to
establish and invest in a huge complex network.
The MLB-G1101 DTU uses the DB9 Connector to provide data communication interface and the DC
jack to provide power input. LEDs are used to indicate the status of the DTU.
The MLB-G1101 DTU can be used to provide a wireless communication link to many applications,
including metering, fleet and asset management, vending, security and alarm monitoring, e-
maintenance and other telemetry applications.
1.2 Highlights
Interface
DC jack Connector for power
DB9 connector for data communications
SMA Female Connector (GSM antenna connector)
SIM card reader
1 * relay
2 * I/O pins
General Features
Dual / Quad-Band GSM 850/900/1800/1900 MHz
GPRS multi-slot class 8
GSM release 99
Output Power
-Class 4 (+33dBm ±2dB) for EGSM850 (quad band only)
-Class 4 (+33dBm ±2dB) for EGSM900
-Class 1 (+30dBm ±2dB) for GSM1800
-Class 1 (+30dBm ±2dB) for GSM1900 (quad band only)
Control via AT commands
SIM Application Toolkit (release 99)

MLB-G1101 DTU User Guide 8 Rev 1.1
TCP/IP stack access via AT commands
Internet Services: TCP, UDP, HTTP, FTP
Supply voltage range: 5 to 32 VDC
Temperature range
-Operating: -40°C to 85°C
-Restricted operating: 65°C to 80°C
Dimensions (L) x (W) x (H) : 119.5 x 89 x 26.9 mm (excluding connectors)
Weight: 200g
GPRS Data Transmission
•GPRS Class 12: max. 86kbps (DL & UL)
•Mobile station class B
•PBCCH support
•Coding schemes CS 1-4
CSD Data Transmission
•Up to 14.4kbit/s
•V.110, RLP
•Non transparent
•USSD support
PPP-stack for GPRS data transfer
Short Message Service (SMS)
•Point-to-point MO and MT
•SMS cell broadcast
•Text and PDU mode
•Cell broadcast
•Storage: SIM card plus 25 SMS locations in mobile equipment Transmission of SMS alternatively
over CSD or GPRS. Preferred mode can be user defined.

MLB-G1101 DTU User Guide 9 Rev 1.1
1.3 Functional Block diagram
Figure 1: Functional Block Diagram for MLB-G1101
The MLB-G1101 consists of a fully certified (CE approved) GSM/GPRS engine, SIM card holder and
power regulator.
The DTU is supplied with power via the DC jack. The remaining DB9 connector are used for data
communications.
The SMA female connector provides the air interface to an external 50 ohm antenna specified for the
correct frequency band.
DB9

MLB-G1101 DTU User Guide 10 Rev 1.1
1.4 Main Features and Services
The MLB-G1101 performs a set of telecom services (TS) according to GSM standard phase 2+, ETSI
and ITU-T. The services and functions of the MLB-G1101 are implemented by issuing customized
applications embedded on the device, or by AT commands issued internally, or over the RJ45 to
RS232 serial interface.
1.4.1 Operating Modes
The table below briefly summarizes the various operating modes referred to in the following chapters.
Normal
operation
GSM / GPRS
SLEEP
Various power save modes set with AT+CFUN command. Software is
active to minimum extent. If the module was registered to the GSM
network in IDLE mode, it is registered and paging with the BTS in SLEEP
mode, too. Power saving can be chosen at different levels: The NON-
CYCLIC SLEEP mode (AT+CFUN=0) disables the AT interface. The
CYCLIC SLEEP modes AT+CFUN=7 and 9 alternately activate and
deactivate the AT interfaces to allow permanent access to all AT
commands.
GSM IDLE
Software is active. Once registered to the GSM network, paging with
BTS is carried out. The module is ready to send and receive.
GPRS IDLE
Module is ready for GPRS data transfer, but no data is currently sent or
received. Power consumption depends on network settings and GPRS
configuration (e.g. multi-slot settings).
GPRS DATA
GPRS data transfer in progress. Power consumption depends on
network settings (e.g. power control level), uplink / downlink data rates,
GPRS configuration (e.g. used multi-slot settings) and reduction of
maximum output power.
POWER
DOWN
Normal shutdown after sending the AT^SMSO command. Only a voltage regulator is
active for powering the RTC. Software is not active. Interfaces are not accessible.
Operating voltage (connected to BATT+) remains applied.
Airplane
mode
Airplane mode shuts down the radio part of the module, causes the module to log off from
the GSM/GPRS network and disables all AT commands whose execution requires a radio
connection. Airplane mode can be controlled by using the AT commands AT^SCFG and
AT+CALA:
• With AT^SCFG=MEopMode/Airplane/OnStart the module can be configured to enter the
Airplane mode each time when switched on or reset.
• The parameter AT^SCFG=MEopMode/Airplane can be used to switch back and forth
between Normal mode and Airplane mode any time during operation.
• Setting an alarm time with AT+CALA followed by AT^SMSO wakes the module up into
Airplane mode at the scheduled time.
Table 1: Operating Modes