Adder Technology EPS-S8, X200AS/R, X200A/R Modem/ISDN port, To connect a modem or Isdn adapter

Modem/ISDN port

The AdderView CATx IP models provide a serial port to allow you to connect either a modem or ISDN terminal adapter. This can be used as a primary, secondary or backup access port for global users, as best suits your overall configuration.

IMPORTANT: When the AdderView CATx IP is accessible from the public Internet or dial up connection, you must ensure that sufficient security measures are employed.

Note: On non-IP models, the COM2/MODEM port is reserved for the support of future features.

To connect a modem or ISDN adapter

1If possible, disconnect power from the AdderView CATx IP and the modem or ISDN adapter.

2Connect a suitable serial modem (non-crossover) cable to the serial port on the modem/ISDN adapter.

3Connect the other end of the serial cable to the port labelled COM2 at the rear of the AdderView CATx IP.

AdderView CATx

rear panel

Cable from modem

or ISDN adapter

Note: The default serial port speed is 115200 and a standard Hayes-compatible auto-answer string is sent during startup. The default startup string is ‘ATZS0=1’. Both the serial port speed and startup string settings can easily be altered during configuration - see Initial IP configuration for more details. The other serial settings are fixed at: No parity, 8 bit word and 1 stop bit.

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