Nortel Secure Router 4134 Installation — Hardware Components page 31

Figure 5
2-port ISDN BRI S/T Small Module
The following figure shows the 2-port ISDN BRI U Small Module.
Figure 6
2-port ISDN BRI U Small Module
Table 4
Cable and connectors
Port Connector
BRI S/T or U RJ45
Table 5
Module LEDs
LED
STAT
Copyright © 2007, 2008 Nortel Networks
.
Recommended
cable type
BRI S/T: Two
75 to 150 ohm
balanced twisted
pairs (CAT-3)
BRI U: One twiste
d pair—unloaded
CAT-3 loops
Description
General module status:
•
Off: No power available to the module
•
Yellow: Out of service, or failed to initiate
•
Green: Power on and the module is operational.
Nortel Secure Router 4134
Installation — Hardware Components
NN47263-301 02.01 Standard
18 February 2008
Interface modules for the Secure Router 4134 31
Minimum
cable length
None
Maximum
cable length
BRI S/T: Up to
1 Km = 3 300 ft
(interior)
BRI U: Up to
18 000 ft = 5.5
Km