Black Box ServSwitch CX, KV1424A-R2 manual Modem/ISDN port, To connect a modem or Isdn adapter

Modem/ISDN port

The ServSwitch CX with 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 ServSwitch CX with 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.

	LOCAL	REMOTE	GLOBAL
	USER	USER	USER
		CX R	IP
POWER	724-746-5500		MODEM
IN			/ISDN
	SAM
	SERVER		POWER
	SYSTEM		SWITCH

To connect a modem or ISDN adapter

1If possible, disconnect power from the ServSwitch CX with 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 COM1 at the rear of the ServSwitch CX with IP.

ServSwitch CX 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 ‘ATZHS0=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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