363-206-305
Circuit Pack Descriptions
Issue 3 June 2000
7-15
Wideband Shelf - Transmission Circuit
Packs
7
BBF1B DS1 Circuit Pack Description
7
Purpose of Circuit
7
The DS1 circuit pack provides a low-speed interface between asynchronous DS1
rate signals and SONET virtual tributary group (VT-G) signals.
DS1 Faceplate Indicator
7
The DS1 circuit pack FAULT indicator is shown in Figure 7-6. This red FAULT LED
is lighted by the SYSCTL on detection of a DS1 circuit pack failure. In the event of
an incoming signal failure, this LED flashes on and off.
Figure 7-6. BBF1B DS1 Circuit Pack
FAULT
LUCENT
x
x
S1:1
DS1
x
x
x
BBF1B
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