Nortel 8003AC Installation Manual page 87

If you need remote dial-in access to the CLI, you can connect a modem to
the CPU module using a serial cable.
Prerequisites
•
•
Procedure steps
Step
1
2
3
Procedure job aid: Modem settings
Use the following table to configure the modem.
Modem settings
Setting
Clear to send (CTS) signal
Data terminal ready (DTR) signal The modem only connects if the DTR signal is
Data carrier detect (DCD) or
received line signal detection
(RLSD)
Data set ready (DSR) signal
Ready to send (RTS) signal
Copyright © 2005-2007, Nortel Networks
.
The Metro Ethernet Routing Switch 8600 supports the AT or Hayes
compatible modem.
You need a DTE-to-DCE cable (straight or transmit cable).
Because the modem port expects to receive Data Set Ready (DSR) and
Clear To Send (CTS) signals before transmitting, these control lines
are required in the cables.
Action
Turn on and configure the modem, using the parameters in
"Procedure job aid: Modem settings" (page
See the modem documentation for instructions.
Insert the 9-pin receptacle end of the serial cable into the modem
connector on the CPU module.
Insert the 25-pin plug connector at the other end of the serial cable
into the RS-232 data communications port of the modem.
Nortel Metro Ethernet Routing Switch 8600
Installation — Modules
NN46220-306 02.02 Standard
4.2 7 July 2008
Connecting a modem to the switch 87
87).
—End—
Value
On
present. If the DTR signal is not present, the
modem disconnects.
On while the carrier is present. The switch
uses DCD to detect modem connect and
disconnect.
On
Ignored