user manual

3-14
Cisco ONS 15454 Reference Manual, R8.5.x
78-18106-01
Chapter 3 Electrical Cards
3.6.1 DS3-12 and DS3N-12 Slots and Connectors
3.6.1 DS3-12 and DS3N-12 Slots and Connectors
You can install the DS3-12 or DS3N-12 card in Slots 1 to 6 or 12 to 17 on the ONS 15454. Each DS3-12
or DS3N-12 card port features DSX-level outputs supporting distances up to 137 meters (450 feet)
depending on facility conditions. With the proper backplane EIA, the card supports BNC or SMB
connectors. See the “7.2 Electrical Card Protection and the Backplane” section on page 7-5 for more
information about electrical card slot protection and restrictions.
3.6.2 DS3-12 and DS3N-12 Faceplate and Block Diagram
Figure 3-5 shows the DS3-12 faceplate and a block diagram of the card.
Figure 3-5 DS3-12 Faceplate and Block Diagram
BTC
ASIC
DS3A
ASIC
61347
Protection
Relay
Matrix
B
a
c
k
p
l
a
n
e
12
Line
Interface
Units
FAIL
ACT/STBY
SF
DS3
12
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