Datasheet

Table Of Contents
4-5
Cisco ONS 15454 SDH Reference Manual, R7.0
October 2008
Chapter 4 Optical Cards
4.2 OC3 IR 4/STM1 SH 1310 Card
4.2 OC3 IR 4/STM1 SH 1310 Card
Note For specifications, see the A.6.1 OC3 IR 4/STM1 SH 1310 Card Specifications” section on page A-28.
The OC3 IR 4/STM1 SH 1310 card provides four intermediate or short range SDH STM-1 ports
compliant with ITU-T G.707 and ITU-T G.957. Each port operates at 155.52 Mbps over a single-mode
fiber span. The card supports VC-4 and nonconcatenated or concatenated payloads at the STM-1 signal
level.
Warning
The laser is on when the optical card is booted. The port does not have to be in service for the laser
to be on.
Figure 4-1 shows the OC3 IR 4/STM1 SH 1310 faceplate and block diagram.
Figure 4-1 OC3 IR 4/STM1 SH 1310 Faceplate and Block Diagram
uP bus
uP
Flash
RAM
BTC
ASIC
B
a
c
k
p
l
a
n
e
STM-4
Optical
Transceiver
Optical
Transceiver
Optical
Transceiver
Optical
Transceiver
134389
STM-4/
STM-1
Mux/Demux
STM-1
termination/
framing
STM-1
termination/
framing
STM-1
termination/
framing
STM-1
termination/
framing
STM-1
STM-1
STM-1
STM-1
1
Tx
Rx
2
Tx
Rx
4
Tx
Rx
3
Tx
Rx
FAIL
ACT
SF
OC3IR
STM1SH
1310