CalAmp SMC-CDMA Series, Руководство пользователя

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001-0004-819 Rev01
Page 15 of 62
Verify SMC Modem Connectivity
Power on the SMC test board (+12VDC typical), then start HyperTerminal.
Figure 5.2 HyperTerminal screen responses
The
ATI command prints the cell module product information. If you get an Error or no
communication, verify the modem is connected to the proper COM port and powered on. Refer to
Figure 5.2 for all the AT commands listed below.
Verify the modems Mobile Equipment Identity (MEID) number with the
AT+CGSN (for Decimal
number) or AT+GSN (for Hexadecimal number) command. The MEID number replaces the ESN
(Electronic Serial number).
Verify good signal strength with the
AT+CSQ? command. A typical reply is +CSQ: 16, 99, using the
mag-mount antenna indoors. The first number is signal strength and ranges from 0 to 31 (the higher
the number, the stronger the signal).
Confirm the phone number currently in the modem with the
AT$SPMDN? command. If the unit is
not provisioned, the number should be 10 digits beginning with several zeros, i.e. 0000005972.
Exit HyperTerminal before attempting to connect using a Dial-Up-Networking connection.