Cisco ONS 15454 - Figure 3-9 DS3-12 E Faceplate and Block Diagram

3-22
Cisco ONS 15454 Reference Manual, R7.0.1
OL-9217-01
Chapter 3 Electrical Cards
3.8 3.8.2 DS3-12E Faceplate and Block Diagram
Figure 3-9 DS3-12E Faceplate and Block Diagram
Figure 3-10 shows the DS3N-12E faceplate and a block diagram of the card.
61349
B
a
c
k
p
l
a
n
e
DS3
ASIC
Flash
uP bus
SDRAM
BTC
ASIC
Line
Interface
Unit #1
main DS3-m1
protect DS3-p1
Line
Interface
Unit #1
main DS3-m12
protect DS3-p12
Processor
OHP
FPGA
BERT
FPGA
FAIL
ACT
SF
DS3
12E