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5. Login Using TTY
•
Use TTY to configure your IP module for the first time. Configure the host serial port using the
defaults listed below:
•
Press the Enter key three times to get to the Login prompt.
•
At the Login prompt, type admin.
•
At the Password prompt, type admin.
Important:
•
Then type dialout serial s1 to start a dialout session. Dialout serial s1 is used to initiate a dialout
session to the modem. You can now enter AT commands to test your modem.
6. Using AT Commands to Test Your Modem
1.
Check the signal quality.
This command determines the received signal strength indication (<rssi>)
•
Type AT+CSQ
Modem responds with the received signal strength (<rssi>).
Response 0 means -113 dBm or less
Response 1 means -111 dBm
Response 2 to 30 means -109 to -53 dBm
Response 31 means -51 dBm or greater
Response 99 means not known or detectable
2.
Check the identity of the modem.
Use this command: ATI (AT is followed by the capital letter i).
•
Type ATI0 (The command ends in a zero).
Manufacturing data displays: Wavecom Modem 800 1900
•
Type ATI3
Software version displays. Ex: S/W VER: xxxxx
•
Type ATI6
Capability data displays. Ex: +CGSM, +CIS707, ...
3.
Check the network registration and roaming status.
•
Type AT+CREG?
The modem will respond in one of the following ways:
+CREG: 0,0
+CREG: 0,1
+CREG: 0,5
Multi-Tech Systems, Inc. MultiModem Wireless EDGE, GPRS, and CDMA Modems with GPS (S000376A)
Baud: 115.2K
Data: 8
Parity: N
Stop: 1
Flow-Control: None
User name and password are case sensitive. They must be typed in lowercase letters.
(this tells you the modem is not registered on any network)
(this tells you the modem is registered on the home network)
(this tells you the modem is registered on a network but it is roaming)
Chapter 2 – Setup and Configuration
12
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