Wxc-C Power Monitoring - Cisco ONS 15454 DWDM Reference Manual

7.12.3 40-WXC-C Power Monitoring

Figure 7-34
EXPRESS
EXPRESS
DROP TX
The Optical Power Monitoring (OPM) device works at per channel level and reports ADD or EXP per
Note
channel power according to the switch position.
7.12.3 40-WXC-C Power Monitoring
The 40-WXC-C has 83 physical diodes (P1 through P40) that monitor power at the outputs of the card.
Table 7-37
Table 7-37
Physical
Photodiode
P1
P2
PDi3
Cisco ONS 15454 DWDM Reference Manual, R8.5
7-66
40-WXC-C Optical Module Functional Block Diagram
RX
Virtual
photodiode
VPD2
TX
70/30
P1
Power supply
Input filters
BAT A&B
LC connector
MPO connector
describes the physical diodes.
40-WXC-C Physical Photodiode Port Calibration
CTC Type Name
DROP
EXP
1
RX
Chapter 7
ADD RX
PDi3
WXC optical module
PDi4
Virtual photodiode
VPD1
DC/DC uP8260
Calibrated to Port(s)
DROP TX
EXP RX
Add i RX ports (that is,
channel input Add i RX
power), up to 40 ports and
1
therefore 40 PDs
Reconfigurable Optical Add/Drop Cards
P5
P...P
OPM
FPGA
For SCL Bus
management
2xSCL Buses
78-18343-02
COM
TX
COM
RX