Cisco ONS 15454 - EC1-12 Slots and Connectors; Figure 3-1 EC1-12 Faceplate and Block Diagram

3-4
Cisco ONS 15454 Reference Manual, R7.0.1
OL-9217-01
Chapter 3 Electrical Cards
3.2 3.2.1 EC1-12 Slots and Connectors
3.2.1 EC1-12 Slots and Connectors
You can install the EC1-12 card in Slots 1 to 6 or 12 to 17 on the ONS 15454. Each EC1-12 interface
features DSX-level (digital signal cross-connect frame) outputs supporting distances up to 450 feet
(137 meters) depending on facility conditions. 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.
3.2.2 EC1-12 Faceplate and Block Diagram
Figure 3-1 shows the EC1-12 faceplate and a block diagram of the card.
Figure 3-1 EC1-12 Faceplate and Block Diagram
Line
Interface
Unit
main STS1
protect STS1
STS-12/
12xSTS-1
Mux/Demux
ASIC
BTC
ASIC
STS-1
Framer
x12
61344
B
a
c
k
p
l
a
n
e
FAIL
ACT/STBY
SF
EC1
12