3 troubleshooting, 1 the gateway’s led does not light, 2 no connection with gateway through serial link – Robustel M1000 XP User Guide User Manual
Page 56: 3 gsm/gprs/umts connection cannot be established, 4 terms and abbreviations, Troubleshooting, The gateway’s led does not light, No connection with gateway through serial link, Gsm/gprs/umts connection cannot be established, Terms and abbreviations
Robustel GoRugged M1000 XP User Guide
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19.11.2013
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5.3 Troubleshooting
This section of the document describes possible problems encountered when using the Robustel M1000 XP and their
solutions.
5.3.1 The gateway’s LED does not light:
Check if gateway has connected to a 9 to 18 VDC power supply properly.
Check if the power connector is properly inserted.
5.3.2 No connection with gateway through serial link
Check if the serial cable has been connected properly.
Check if the serial cable has been made by following pin assignment given in table PIN assignment for RS232
and RS485.
Check if your program has proper setting. Factory setting of the gateway under Normal Mode is listed at 5.1.
Check if there is another program interfering with the communication program, such as conflict on
communication port access.
5.3.3 GSM/GPRS/UMTS connection cannot be established
Check if the APN, User Name and Password have been input correctly.
Check if the SIM card balance is enough or not.
5.4 Terms and Abbreviations
Abbreviations
Description
AC
Alternating Current
APN
Access Point Name of GPRS/UMTS Service Provider Network
CE
European Conformity
CHAP
Challenge Handshake Authentication Protocol
CSD
Circuit Switched Data
CTS
Clear to Send
dB
Decibel
dBi
Decibel Relative to an Isotropic radiator
DC
Direct Current