W-Link D800 series User manual

User Manual
---Apply to D80 series Industrial 4G/3G DTU
V1.2
http://www.wlink-tech.com
May, 2017

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Copyright © Shenzhen WLINK Technology Company Limited 2012 ～2017
Without our written approval, Anyone can’t extract, copy whole or part of content of this file and
can’t spread out in any format.
Caution
Due to product updates or functional upgrading, we may renew the content of this file, and this
file only for reference. All statement, information, suggestion.etc in this file do not compose any
form of guarantee and we WLINK reserves the right of final explanation.
Shenzhen WLINK Technology Company Limited
Add：
3F, Yiben Building, Chaguang Road, Xili, Nanshan District, China, 518054
Web：
http://www.wlink-tech.com
Service Email：
[e-mail]
Phone：
86-755-86089513
Fax：
86-755-26059261

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Contents
1Product Introduction......................................................................................................................3
1.1 Product Overview............................................................................................................... 3
1.2 Typical Application Diagram............................................................................................. 3
1.3 Features............................................................................................................................... 4
2Hardware Installation....................................................................................................................5
2.1 LED Status...........................................................................................................................5
2.2 Dimension............................................................................................................................ 6
2.3 How to Install.......................................................................................................................6
3DTU Configuration........................................................................................................................ 8
3.1 Serial Port Settings.............................................................................................................8
3.2 DTU Configuration............................................................................................................11
3.3 DTU Typical Application(point to point).........................................................................18

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1Product Introduction
1.1 Product Overview
The rugged D800 series DTU (Data Terminal Unit) which is a cellular modem have been
developed especially for M2M application. It provides RS232/RS-485/RS-422/TTL
interface and equipped with PPP, TCP/IP and DDP protocol, it could convert the user data
into 4G, 3G, EDGE or GPRS network and transmits the data to the customer’s data
service center through complete transparent data channel, allows a simple and rapid
integration of cellular network connectivity into M2M application.
With the robust, reliable, long life and compact metal case design, the D800 DTU ideally
adapts to onboard standard, easy to deploy and maintenance, it has been widely applied
in many fields worldwide, such as power SCADA, oil field, coal mine, weather forecast,
environment protection, water conservancy, heating, natural gas, petroleum and so on.
1.2 Typical Application Diagram
Wlink 3G/2G DTU widely used in AMR, Oil, transportation, power grid, mining and other
industries fields.

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Figure 1-1 Network Topology
1.3 Features
Various cellular module optional, LTE/HSPA+/EVDO/CDMA2000 optional
Optimized EMC design
Standard PPP, TCP/IP and UDP/IP protocol
Industrial pluggable terminal block
Industrial 3G/EDGE/GPRS wireless module
Support APN and VPDN wireless private network
Support short message service (SMS)
Support transparent data transmission
Support data service center with dynamic IP address
Support LED status indication
Wide range voltage input
Smart power management
External power on/off control
Reliable, flexible and easy to deploy

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2Hardware Installation
This chapter is mainly for installation introduction, there would be some difference
between the scheme and real object. But the difference doesn’t have any influence to
products performance.
2.1 LED Status
LED indicator Status
silk-screen
color
status
Indication
NET
Red
Weak Signal
CSQ<20
Green
Good Signal
CSQ>21
Fast Blinking
Self-checking
Light on
2s,Light off 1s
Standby
Light on 1s,
Light off 2s
Online
PWR
Green
Light on
DTU system runs

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2.2 Dimension
2.3 How to Install
2.3.1 SIM/UIM card installation
Open SIM shelter by screw-driver, then insert SIM/UIM card.
Before connecting, please disconnect any power resource of DTU
SIM/UIM Card

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2.3.2 Serial port
PIN
1
2
3
4
5
6
7
8
9
RS232
Tx
Rx
GND
RS485
B
A
TTL
Tx
Rx
GND
2.3.4 Power Supply
In order to get high reliability, adapt wide voltage input: +5V～+36VDC, support hot plug
and complex application environment.
2.3.5 Review
After insert the SIM/UIM card, connect serial cable, necessary antenna, then connect
power cable.
Please connect the antenna before connect the power cable, otherwise because of
impedance mismatching, the signal maybe poor.
Notice:
Step 1 Check antenna connection.
Step 2 Check SIM/UIM card, configure SIM/UIM card is available.
Step 3 Power on DTU

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3DTU Configuration
3.1 Serial Port Settings
Run DTU Config Tool and select serial port, then setup serial port parameters in the
bottom of DTU Config Tool as below.
Baud: 57600bps
DataBits: 8bit
Parity: NULL
Stop Bits: 1bit
Flow Control: NULL

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Click Connect button, The DTU will be connected to this software and enter configuration
mode. If connection is successful, it will display Connected DTU in the status bar.
【Connect】Connect DTU
【Close serial】Close serial port to leave configuration mode.
【Read from file】Read settings file in the software.

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【Save to file】Save current settings to file. It’s convenient to butch setup.
【Default】Setup DTU to default settings.
【Get】Inquiry current DTU setting.
【Save】Save settings to DTU.

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3.2 DTU Configuration
3.2.1 DTU serial port Settings
DTU Serial port settings instruction.
Parameters
Description
Instruction
Default
Baud rate
Serial port properties
300/600/1200/2400/4800/9600/19200/384
00/57600/115200 optional.
RS232 Port for 115200bps as default.
RS485 Port for 115200bps as default.
Data bits
8
8
Stop bits
1/2
1
Parity
NULL/ODD/EVEN
NULL
Command mode
DTU and terminal communication as
special protocol. Under command
mode, terminal might setup DTU
configuration.
Enable/Disable
The default is for transmission mode.
Disable
Max Package
Length
The max transmission unit. Once data
package length exceed to MTU, DTU
will split data package as MTU.
1~1024bytes
1024bytes
Min Internal
The Min Interval is the waiting time
interval for transmitting the data
package that is less the MTU. If the
last package equals to the MTU, DTU
will transmit it immediately.
100~1000ms
300
Debug Info
Control serial port debug information
NULL/DEBUG/STATUS/AT. Configure AT
level during testing with PC. Configure
NULL, then connect DTU to device.
[NULL]DTU won’t send any information to
serial.
[DEBUG]DTU sends simple information to
NULL

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Parameters
Description
Instruction
Default
serial port. It’s convenient to test DTU.
[Status]DTU sends operation status,
signal strength to serial.
[AT] DTU sends all debug information to
serial port. It’s convenient to test DTU
3.2.2 DTU Network Settings
DTU Network settings instruction
Parameters
Description
Instruction
Default
APN
SIM information for dial up
1~63bytes
cmnet
User name
0~63bytes
NULL
Password
0~63bytes
NULL
Main DNS
Defined main DDNS server IP
address
If configured 0.0.0.0, DTU will use default
DNS IP address as domain name
resolution server.
0.0.0.0
Secondary DNS
Defined secondary DDNS server IP
address
If main DNS for 0.0.0.0, the secondary
DNS will be invalid.
0.0.0.0
Ping IP address
Check destination IP address
.
0.0.0.0
Ping Domain
Name
Check destination domain name. If IP
0.0.0.0 and domain name is null, Ping
is disable.
0~63byts
NULL
Interval
PING check interval when idle.
0~255mins
0 indicates PING is disable status.
0

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If destination IP is unreachable after ping 3 times in succession,, DTU will redial up.
3.2.3 DTU Connection Settings
DTU Connection settings instruction
Parameters
Description
Instruction
Default
First center IP
First Data server center IP
address(static IP address)
0.0.0.0
Port
0~65535
40001
Connect type
UDP/TCP
UDP
Domain name
No static IP for server
Only when setup center IP as 0.0.0.0, it’s
just available.
N/A
Second center IP
Second Data server center IP
address(static IP address)
0.0.0.0
Port
0~65535
40002
Connect Type
UDP/TCP
UDP
Second Domain
Name
No static IP for server
Only when setup center IP as 0.0.0.0, it’s
just available.
N/A
Third center IP
Third Data server center IP
address(static IP address)
0.0.0.0
Port
0~65535
40003
Connect Type
UDP/TCP
UDP
Third Domain
No static IP for server
Only when setup center IP as 0.0.0.0, it’s
N/A

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Parameters
Description
Instruction
Default
Name
just available.
1. DTU will synchronously connect to 3 data center when configured 3 center IP inside of
tool.
2. DTU will retry connect other centers as long as it has connected one center.
3. DTU will redial up if it’s failed to connect all of 3 centers more than 9times in
succession.
3.2.4 DTU Protocol settings
DTU Protocol settings instruction
Parameters
Description
Instruction
Default
Protocol Select
NULL/DRMP/DDP
[NULL]Transparent transmission.
[DRMP]WLINK transmission protocol.
NULL
Custom ID
Identify DTU in data server center
4byte length
0
ID Position
ID insert data package in order to
identify which DTU sent data.
0~24bytes
1
Custom
Heartbeat
Package
DTU log in data center server and
keep connection.
0~24bytes
NULL
Custom ACK
Package
DTU receive ACK after sent
heartbeat. If no ACK 3times in
succession, DTU will reconnect to
data center server.
0~24bytes
NULL

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3.2.5 DTU Work mode settings
DTU Protocol settings instruction
Parameters
Description
Instruction
Default
Mode Select
ONLINE/WAKEUP/SMS/
[ONLINE] After powered on, DTU
automatically connect and reconnect to
data center server to keep online always..
[WAKEUP] After Powered on, DTU will
work on standby mode. Once DTU
received wake up short message from
defined phone number, or received the
triggering data from terminal, DTU will dial
up and connect to data center server. After
idle time, DTU will re-enter wake up mode.
[SMS] DTU works short message mode.
NULL
Idle Interval
5~65535s
300s
Reconnect
DTU reconnect to data center server
after interval time when connection is
5~65535s
300s

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Parameters
Description
Instruction
Default
Interval
failed.
SMS Number
Short message and call wake up and
short message configuration from the
specified number.
0~31bytes
NULL
Transmission
SMS
DTU will transmit any short message
to terminal.
Enable/Disable
Disable
Switch
Command
DTU will be switched to configuration
mode from transmission mode. After
switched to configuration mode, The
DTU will enter command mode to
communicate with terminal.
6 visible characters
++++++
3.2.6 DTU Remote management settings
DTU Remote management settings instruction
Parameters
Description
Instruction
Default
Start Interval
DTU automatically connects to remote
management software as this start
interval time.
0,10~65535mins
0 means this function is invalid.
1140mins
Remote IP
Remote management software static
IP address
0.0.0.0
Remote Port
0~65535
40001
Remote Domain
Name
Short message and call wake up and
short message configuration from the
specified number.
0~63bytes,
Domain name is available when the IP
address is setup 0.0.0.0
NULL

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3.2.7 DTU Version settings
DTU Version settings instruction
Parameters
Description
Instruction
Default
Product type
Product model
Serial type
Firmware version
SN

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3.2.8 Firmware Upgrade
Choose the firmware, then click Start button to upgrade firmware. Restart WL-D80
modem after upgrade is completed.
3.3 DTU Typical Application(point to point)
DTU establishes a TCP connection to data server center. DTU transmits serial port data
to data server center by TCP protocol. DTU acts as TCP client as below settings. The
serial port tool SSCOM32 simulates serial port device. TCP/IP net Assistant tool simulates
data server center.

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DTU Settings List
Parameters Menu
Settings
Note
Serial
Serial
Configure baud rate, data bit, stop bit and parity to match
with terminal.
Debug
If test DTU with PC’s serial tool, better select STATUS
which is easy to check DTU status.
If tested DTU with device, better select NONE.
Network
APN
Uninet
User name
NULL
Password
NULL
PING
221.118.79.21
Connection
First Center IP
221.118.79.21
Port
50081
Heartbeat Interval
120
Protocol
Custom ID
13900000001
Protocol Select
NONE
ID position
0
Custom Heartbeat Package
hello
Custom ACK Package
yes
Work Mode
Mode Select
ONLINE
Reconnect Interval
300
Remote
Management
Start Interval
0
Serial Port Status display
After configured, please restart the DTU and run SSCOM32 serial port tool, it’ll display
DTU work status. The hyper terminal tool is also available to display DTU status.