Lucent Technologies PortMaster - Manual (Page 193)

Using ISDN BRI 12-9
ISDN Port Configuration Tips
ISDN Port Configuration Tips
Use the following tips to help you configure your ISDN BRI port:
• Modem control (carrier detect), flow control, and speed are not set on an ISDN port.
The PortMaster automatically detects the speed and sets the port to 64000bps or
56000bps accordingly. Flow control is not set on a synchronous line because the
external clock speed is provided by the telephone company and carrier detect is
always used.
• Refer to your hardware installation guide for information on ISDN LED activity.
• The ISDN ports support synchronous PPP and asynchronous V.120 PPP or SLIP. The
show S0 command displays “64000/async” if the port is in use for an asynchronous
V.120 connection.
• When using the ISDN port for network dial-out, use the set location telephone,
set location username, and set location password commands as described in
Chapter 8, “Configuring Dial-Out Connections.”
ISDN BRI Unnumbered IP Configuration Example
This example illustrates how to connect a PortMaster located in one office (Denver)
with a PortMaster located in another office (San Francisco) using an on-demand ISDN
connection.
Configuration Steps
To install your PortMaster, follow the instructions in the hardware installation guide. If
you need additional help, refer to the troubleshooting chapter of the guide. The example
in this chapter shows variables in italics. Change these values to reflect your network.
Once you have assigned an IP address to the PortMaster, continue with the following
steps:
1. Use a cable with RJ-45 connectors to connect the BRI port to the ISDN
telephone line.
Caution – Do not plug an analog telephone line into the PortMaster BRI port. The
PortMaster could be damaged.
!