Nortel 4134 安装指导
Interface modules for the Secure Router 4134
29
Table 8
Serial interface module modes and associated clock rates
Serial interface module modes and associated clock rates
Mode
DCE
DTE
Clock rate (Hz)
V.35
Yes
Yes
56000–2000000
X.21
Yes
Yes
56000–2000000
RS-232
Yes
Yes
1200–115000
RS-449
Yes
Yes
56000–2000000
EIA-530
Yes
Yes
56000–2000000
EIA-530A
Yes
Yes
56000–2000000
Table 9
Module LEDs
Module LEDs
LED
Description
LINK/STAT 1
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
LINK/STAT 2
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
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.
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.
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.
Nortel Secure Router 4134
Installation — Hardware Components
NN47263-301
01.02
Standard
10.0
7 August 2007
Copyright © 2007, Nortel Networks
.