T1/E1 Medium Module - Nortel Secure 4134 Installation Manual

Table 8
Serial interface module modes and associated clock rates
Mode
V.35
X.21
RS-232
RS-449
EIA-530
EIA-530A
Table 9
Module LEDs
LED
LINK/STAT 1
LINK/STAT 2
When you power on the Secure Router 4134 with a serial configuration, the serial interface software
polls the port hardware status to ensure the connected cable matches the port configuration. If a
connected cable does not match the cable type and operational mode settings, the interface
LED turns red and the port hardware is disabled. This prevents damage to internal and external
hardware components.

T1/E1 Medium Module

The 8-port T1/E1 Medium Module provides eight T1 ports (each port
supports 24 data timeslots with a line data rate of 1.544 Mbps) or eight E1
ports (each port supports 31 data timeslots with a line data rate of 2.048
Mbps). The module supports up to 128 logical channels.
The following figure shows the 8-port T1/E1 Medium Module.
Copyright © 2007, Nortel Networks
.
DCE
Yes
Yes
Yes
Yes
Yes
Yes
Description
Status of interface 1:
• Off: Not connected or the interface is out of service.
• Yellow: The interface is in a loopback mode or is running diagnostics
• Green: The link or channel is active and receiving a valid signal
Status of interface 2:
• Off: Not connected or the interface is out of service.
•
Yellow: The interface is in a loopback mode or is running diagnostics
• Green: The link or channel is active and receiving a valid signal
Nortel Secure Router 4134
Installation — Hardware Components
NN47263-301 01.02 Standard
10.0 7 August 2007
Interface modules for the Secure Router 4134 29
DTE
Yes
Yes
Yes
Yes
Yes
Yes
Clock rate (Hz)
56000–2000000
56000–2000000
1200–115000
56000–2000000
56000–2000000
56000–2000000