Nortel Secure Router 4134 Installation — Hardware Components page 34

34 Nortel Secure Router 4134 hardware components fundamentals
Table 7
Maximum DTE cable lengths
DTE data rate Maximum DTE cable lengths
(kbps)
RS-232C
56 or 64 10 ft (3.05 m)
224 or 256 N/A
896 or 1024 N/A
N/A - not applicable (these rates cannot be used for RS-232C interface)
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.
Copyright © 2007, 2008 Nortel Networks
.
V.35
4000 ft (1219.2
m)
3500 ft (1066.8
m)
1700 ft (518.16
m)
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 02.01 Standard
18 February 2008
RS449/422
4000 ft (1219.2
m)
1700 ft (518.16
m)
350 ft (106.68 m)
DTE
Yes
Yes
Yes
Yes
Yes
Yes
RS530/422
4000 ft (1219.2
m)
1700 ft (518.16
m)
350 ft (106.68 m)
Clock rate (Hz)
56000–2000000
56000–2000000
1200–115000
56000–2000000
56000–2000000
56000–2000000