WA_DEV_GL6100_PTS_001
Rev 002
May 24, 2010
50
GL61x0 Product Technical
Specification and User Guide
Communicating with the GL61x0
8.2.
Verifying the Received Signal Strength
The GL61x0 only establishes a call if the received signal strength is strong enough. Using
communication software such as HyperTerminal, enter
AT+CSQ
to check the received signal
strength. The response returned will follow the format
+CSQ: <rssi>, <ber>
where:
<rssi> = received signal strength indication, and <ber> = channel bit error rate.
Refer to the table below for the description of the <rssi> values returned.
Table 30:
<rssi> Value Description
<rssi> Value
Description
0
– 10
Received signal strength is insufficient.
11
– 31
Received signal strength is sufficient.
32
– 98
Not defined.
99
No measure available.
Refer to document [7] Firmware 7.42 AT Commands Manual (Sierra Wireless Software Suite 2.32) for
more information regarding the
AT+CSQ
AT Command.
8.3.
Verifying the Network Registration
To check the network registration, make sure that a valid SIM card has been properly inserted into the
GL61x0. (Note that when using the GL61x0 with Embedded SIM, ensure that the device has been
registered by the network provider.)
Using a communication software such as HyperTerminal, enter
AT+CREG?
to verify the network
registration of the GL61x0. Refer to the table below for the list of main responses returned.
Table 31: AT+CREG Main Reponses
AT+CREG Response
Description
+CREG: 0,0
Not registered.
+CREG: 0,1
Registered on the home network.
+CREG: 0,5
Registered on a roaming network.
If the GL61x0 is not registered on the network, do the following:
Check the connection between the GL61x0 and the antenna.
Verify the signal strength to determine the received signal strength (refer to section
8.2Verifying the Received Signal Strength).
Refer to document [7] Firmware 7.42 AT Commands Manual (Sierra Wireless Software Suite 2.32) for
more information regarding the
AT+CREG
AT Command, and other AT commands relating to
network registration in GPRS mode.
Содержание GL6100
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