Interface Cable - 3Com 3C13701 Module Manual

3Com Router 5000 and Router 6000 v2.41
Module Guide
Figure 2-11 SIC-2BS panel
Figure 2-12 SIC-2BU panel
The status description of the LEDs is given in the following table:
Table 2-8 Description of the LEDs on SIC-BS and SIC-BU panels
B1
B2
ACT
ON
Note:
For ISDN, "active" describes the action or process that a terminal device synchronizes the network clock.
It belongs to the physical layer category. In order to decrease power consumption of exchange device
and etc., usually the terminals and network (LT port) should be "deactivated".

2.3.5 Interface Cable

Both of Router 2-Port ISDN-S/T SIC and Router 2-Port ISDN-U SIC use the telephone
cable with ferrite core.
LED
OFF means B1 channel is idle. Blinking means B1 channel is occupied and
data communication is being conducted.
OFF means B2 channel is idle. Blinking means B2 channel is occupied and
data communication is being conducted.
OFF means deactivation. Blinking means activating process. ON means
active status.
OFF means the power to the SIC is disconnected (caused by the failure of
power supply to the SIC and so on). ON means the SIC is normally
powered on.
Chapter 2 Smart Interface Cards
Description
2-11