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Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
Chapter 7      Reconfigurable Optical Add/Drop Cards
7.7.7    40-DMX-C Port-Level Indicators
7.7.7 40-DMX-C Port-Level Indicators
You can find the alarm status of the 40-DMX-C card ports using the LCD screen on the ONS 15454 
fan-tray assembly. The screen displays the number and severity of alarms on a given port or slot. For the 
procedure to view these counts, refer to “Manage Alarms” in the Cisco ONS 15454 DWDM Procedure 
Guide.
7.8 40-DMX-CE Card
Note See the “A.7.7  40-DMX-CE Card Specifications” section on page A-30 for hardware specifications.
Note For 40-DMX-CE card safety label information, see the “7.2  Safety Labels for Class 1M Laser Product 
Cards” section on page 7-9.
The single-slot 40-Channel Demultiplexer C-band, even channels (40-DMX-CE) card demultiplexes 40 
100-GHz-spaced even-numbered channels identified in the channel plan (Table 7-24 on page 7-43), and 
sends them to dedicated output ports. The overall optical power can be adjusted using a single VOA that 
is common to all channels. The 40-DMX-CE card is unidirectional, optically passive, and can be 
installed in Slots 1 to 6 and 12 to 17.
7.8.1 40-DMX-CE Card Faceplate Ports 
The 40-DMX-CE card has two types of ports: 
 • COM RX port: COM RX is the line input port for the aggregate optical signal being demultiplexed. 
This port is supported by a VOA for optical power regulation and a photodiode for per-channel 
optical power monitoring.
Note By default, the VOA is set to its maximum attenuation for safety purposes (for example, 
electrical power failure). A manual VOA setting is also available.
Table 7-22 40-DMX-C Card-Level Indicators  
Card-Level Indicators Description
Red FAIL LED The red FAIL LED indicates that the card’s processor is not ready or that an 
internal hardware failure occurred. Replace the card if the red FAIL LED 
persists.
Green ACT LED The green ACT LED indicates that the 40-DMX-C card is carrying traffic or 
is traffic-ready.
Amber SF LED The amber SF LED indicates a signal failure on one or more of the card’s 
ports. The amber SF LED also turns on when the transmit and receive fibers 
are incorrectly connected. When the fibers are properly connected, the light 
turns off.