Datasheet

Table Of Contents
4-19
Cisco ONS 15454 SDH Reference Manual, R7.0
October 2008
Chapter 4 Optical Cards
4.9.1 OC48 LR/STM16 LH AS 1550 Card Functionality
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 4-8 shows the OC48 LR/STM16 LH AS 1550 faceplate and block diagram.
Figure 4-8 OC48 LR/STM16 LH AS 1550 Faceplate and Block Diagram
4.9.1 OC48 LR/STM16 LH AS 1550 Card Functionality
You can install OC48 LR/STM16 LH AS 1550 cards in Slots 1 to 6 or 12 to 17. You can provision this
card as part of a MS-SPRing or SNCP. In an LMSP configuration, you can provision the card as either
an access tributary or a transport span interface.
The OC48 LR/STM16 LH AS 1550 port features a 1550-nm laser and contains a transmit and receive
connector (labeled) on the card faceplate. The card uses SC connectors, and it supports
1+1 unidirectional protection and provisionable bidirectional and unidirectional switching.
uP bus
uP
Flash
RAM
BTC
ASIC
Optical
Transceiver
STM-16
Main SCI
Protect SCI
STM-16
134385
Mux/
Demux
B
a
c
k
p
l
a
n
e
FAIL
ACT
SF
TX
1
RX
OC48LR
STM16LH
AS 1550