A T Command For Verifying Signal Strength; At Command For Checking Network Registration And Roaming Status; Exiting Modem Mode - Multitech MultiModem rCell MTCBA-H-EN2 User Manual

A T Command for Verifying Signal Strength

2 5 B 2 5 B
To communicate directly with the cellular modem to verify signal strength, network registration, and roaming status, telnet to the
modem.
Note: Ensure that the Status LED is blinking, indicating that the router is ready.
1. To Telnet to the modem. You can access the modem thru the Run icon or from the Command Prompt:
Click Start I Run icon. In the Open window, enter cmd and then press ENTER.
Click Start I All Programs I Accessories I Command Prompt
●
In the command window, type telnet 192.168.2.1 5000
●
At the Login prompt, type the default user name: admin (all lower-case). Press ENTER
●
At the Password prompt, type the default password: admin (all lower-case). Press ENTER
2. In the command window, type AT+CSQ
3. The router responds with the received signal strength (rssi) and the channel bit error rate (ber).
RSSI ranges from 0 to 31. BER ranges from 0 to 7
10 – 31
0 – 9
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AT Command for Checking Network Registration and Roaming
Status
Use this command to verify that the MultiModem rCell Router has been registered on a wireless network.
1. In the command window, type AT+CREG?
2. The router will respond in one of the following ways:
Value
+CREG: 0,0
+CREG: 0,1
+CREG: 0,5
Note: If the router indicates that it is not registered, verify the signal strength to determine if the problem is the strength of the
received signal.

Exiting Modem Mode

1. After the last AT Command is entered, press:
CTRL + ] (the right bracket).
2. The following prompt displays:
telnet>
Type quit and press Enter.
3. Then the following prompt displays:
c:>
Type exit and press Enter.
Multi-Tech Systems, Inc. MultiModem rCell User Guide
or
Signal Strength – RSSI
Sufficient
Weak or Insufficient
Insufficient
Network Registration Verification
Network Registration Status
The router is not registered on any network
The router is registered on the home network
The router is registered on a network and it is roaming
(7 is the highest error rate).
Chapter 2 – Activation and Installation
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