Sierra Wireless AirLink GL8200, Руководство пользователя

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4116298 Rev 7.0 November 07, 2016 28
Product Technical Specification and
User Guide
Communicating with the GL8200
For more information about AT commands applicable to the GL8200, please refer to the commands
marked as supported by HL8548 in document [2] AirPrime HL6 and HL8 Series AT Commands
Interface Guide.
4.2. Checking the PIN Code Status
To check if a pin code has been entered, do the following:

Using a communication software such as HyperTerminal, enter the AT command
AT+CPIN?

Refer to the table below for the meaning of the AT command response .
Table 12. AT+CPIN Responses
AT+CPIN Responses Description
+CPIN: READY
PIN Code has been entered
+CPIN: SIM PIN
PIN Code has not been entered
For more information about AT commands applicable to the GL8200, please refer to the commands
marked as supported by HL8548x in document [2] AirPrime HL6 and HL8 Series AT Commands
Interface Guide.
4.3. Verify the Received Signal Strength
The GL8200 establishes a call only if the received signal is sufficiently strong. To verify the received
signal strength, do the following:

Using a communication software such as HyperTerminal, enter the AT command
AT+CSQ
.
The response returned has the following format:
+CSQ: <rssi>,<ber>
with:
<rssi>
= received signal strength indication
<ber>
= channel bit error rate

Verify the
<rssi>
value returned using the table below.
Table 13. Received Signal Strength Values
Value of Received Signal Strength
Indication (<rssi>)
Interpretation of the Received Signal Strength
0
– 10
Insufficient*
11
– 31
Sufficient*
32
– 98
Not defined
99 No measure available
* Based on general observations.