Nortel Networks AN/DC manual Connecting a Modem, Modem Parameters, Modem Signal/Parameter Value

Installing and Operating AN/DC and ANH-8/DC Systems

Connecting a Modem

A modem provides remote access to the AN/DC for a network administrator. We recommend that you connect a modem in case the AN/DC experiences system problems.

Note: Netboot, Directed Netboot, and Local Boot require a terminal or PC console connection. After the AN/DC is on the network, you can replace the console connection with a modem connection. When using EZ Install, you can connect a modem to the AN/DC before or after you connect the AN/DC to the network.

To connect a modem to the AN/DC, you need

•An AT (or Hayes) compatible modem

•The Order No. 110307 modem cable in the AN/DC console/modem cable kit

Do not use the Order No. 110308 null modem adapter from the AN/DC cable kit.

Once you have the appropriate equipment, complete the following steps:

1.Configure the modem, using the parameters in Table 1-2. Refer to the modem user manual for instructions.

Table 1-2.	Modem Parameters
Modem Signal/Parameter		Value
Clear To Send (CTS)		On
Data Terminal Ready (DTR)		Depends on the modem type. Set DTR to require
		the modem to answer incoming calls.
Data Carrier Detect (DCD) *		On while carrier is present (the AN/DC uses DCD
		to detect modem connect and disconnect).
Data Set Ready (DSR)		On
Ready to Send (RTS)		Ignore
Synchronous/Asynchronous Mode		Asynchronous
AutoAnswer		Set on n rings with DTR active (n must be greater
		than 0).
Local Character Echo		Off
		(continued)

1-16 312410-A Rev 00