Telenetics CDMA Powering-up the Modem, Call Answer Testing, Configuring the Omega Cdma Modem

AT Commands

Powering-up the Modem

When power is applied to the OMEGA CDMA Modem, observe the modem LEDs. If switch 5 is set to ON, the Power, CTS, and DSR LEDs should all go ON after the modem performs its initialization for approximately 30 seconds. The RTS, DCD, TXD, and RXD LEDs go ON when a DTE is connected to the modem, a connection is established, and data is being transferred.

Note: If the OMEGA CDMA Modem is not registered with the cellular network, the DSR LED will be OFF.

Call Answer Testing

After powering-on the OMEGA CDMA Modem, use the following procedure to test the modem’s ability to answer a call.

1.Use a telephone to call the OMEGA CDMA Modem. Listen to the call to verify that the OMEGA CDMA Modem answers the call with its answer tone and performs its handshaking sequence in an attempt to make a data connection. Hang up the handset of the telephone that originated the call.

2.Use another modem to call the OMEGA CDMA Modem. Verify that the OMEGA CDMA Modem answers the call, makes a data connection, and turns on the DCD LED. If the DCD LED does not go ON, make sure switch 5 is in the ON position to monitor RS-232 signals.

Configuring the OMEGA CDMA Modem

The OMEGA CDMA Modem is configured by issuing AT commands from a DTE connected to the OMEGA CDMA Modem’s serial port. Commands are sent using a terminal-emulation software program such as HyperTerminal. The terminal-emulation program must be configured to use the following settings:

™Baud rate: use the baud rate selected by Switches 1 and 2 on the OMEGA CDMA Modem (see Table 2-3 on page 14)

™Data bits: 8

™Parity bit: none

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