1-port ISDN U-interface card (SIC-1B-U)
1-port ISDN S/T interface card (SIC-1B-S/T)
Images and Indicators
The following figure shows the image of the 1-port ISDN U-interface card (SIC-1B-U).
Figure 1-20 ISDN-1B-U
The SIC-1B-U is a Type A SIC, which can be inserted in a slot marked with “A”.
The following figure shows the image of the 1-port ISDN S/T U-interface card (SIC-1B-S/T).
Figure 1-21 SIC-1B-S/T
The SIC-1B-S/T is a Type A SIC, which can be inserted in a slot marked with “A”.
Each card has a port working status
ACT
indicator and the card
Ready
indicator. Besides, each ISDN card has two status
indicators:
B1
and
B2
.
The following table describes panel indicators.
Table 1-14 LED Indicators on the ISDN Card
Indicator
Status
Meaning
ACT
Solid on
The U interface or S/T is active.
Off
The U interface or S/T is idle.
RDY
On
Initialization completed.
Off
Initialization failed.
B1
On
B1 channel is active.
Off
B1 channel is idle.
B2
On
B2 channel is active.
Off
B2 channel is idle.
