Westermo GS-01 User Manual download pdf (Page 53)

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8.0 Trouble Shooting

8.1 The modem does not answer through the serial link

a) Is the modem correctly powered on? (see table under section “Connections”)

b) Is the serial cable suitable and adjusted in both ends

(see table under section “Connections”)

c) Check that the communication program is properly configured:

• Data Bits: 8

• Parity: None

• Stop bit: 1

• Data rate: 2 400, 4 800 or 9 600 bit/s

d) Does any program interfere with your communication program

(conflict on communication port access)

8.2 The modem always return “Error” when trying to issue a communication

a) Issue AT+CMEE=1 to have extended error cause retry

Cause value Diagnostic Hint

0 Phone failure Contact Westermo

3 Operation not allowed

4 Operation not supported

10 SIM not inserted Insert the SIM card and check

that it is properly mounted

11 SIM PIN required Enter PIN code

12 SIM PUK required Enter PUK code

13 SIM Failure Check validity of your SIM card.

16 Incorrect password Check the code you entered

17 SIM PIN2 required Enter PIN2 code

18 SIM PUK2 required Enter PUK2 code

26 Dial string too long Check your phone number

(max 20 digits)

30 No network service

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Westermo GS-01 User Manual Page 53