Cisco ONS 15454 DWDM - Automatic Laser Shutdown; Figure 8-11 TXP_MR_10 G Faceplate and Block Diagram

8-10
Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
Chapter 8 Transponder and Muxponder Cards
8.3.1 Automatic Laser Shutdown
Figure 8-11 TXP_MR_10G Faceplate and Block Diagram
For information on safety labels for the card, see the “8.2.2 Class 1M Laser Product Cards” section on
page 8-6.
8.3.1 Automatic Laser Shutdown
The ALS procedure is supported on both client and trunk interfaces. On the client interface, ALS is
compliant with ITU-T G.664 (6/99). On the data application and trunk interface, the switch on and off
pulse duration is greater than 60 seconds and is user-configurable. For details on ALS provisioning for
the card, refer to the Cisco ONS 15454 DWDM Procedure Guide.
uP bus
Serial bus
uP
Flash
RAM
Optical
transceiver
145948
Framer/FEC/DWDM
processor
Client
interface
DWDM
trunk
(long range)
Optical
transceiver
Client interface
STM-64/OC-192
SR-1 optics modules
or 10GBASE-LR
B
a
c
k
p
l
a
n
e
DWDM trunk
STM-64/OC-192
10G MR
TXP
1530.33 -
1531.12
FAIL
ACT/STBY
SF
TX
RX
CLIENT
1530.33
1531.12
DWDM
TX
RX
!!
MAX INPUT
POWER LEVEL
- 8 dBm