Cisco ONS 15454 DWDM - Table 16-35 4 MD-XX.X Card-Level Indicators

16-59
Cisco ONS 15454 DWDM Installation and Operations Guide, R6.0
April 2006
Chapter 16 Card Reference
16.7 Optical Add/Drop Multiplexer Cards
16.6.4.4 4MD-xx.x Port-Level Indicators
You can find the status of the card ports using the LCD screen on the ONS 15454 fan-tray assembly. Use
the LCD to view the status of any port or card slot; the screen displays the number and severity of alarms
for a given port or slot. The 4MD-xx.x card has five sets of ports located on the faceplate. COM RX is
the line input. COM TX is the line output. The 15xx.x TX ports represent demultiplexed channel
outputs 1 to 4. The 15xx.x RX ports represent multiplexed channel inputs 1 to 4.
16.7 Optical Add/Drop Multiplexer Cards
This section discusses the optical add/drop multiplexer cards.
16.7.1 AD-1C-xx.x Card
The 1-Channel OADM (AD-1C-xx.x) card passively adds or drops one of the 32 channels utilized within
the 100-GHz-spacing of the DWDM card system. Thirty-two versions of this card—each designed only
for use with one wavelength—are used in the ONS 15454 DWDM system. Each wavelength version of
the card has a different part number. The AD-1C-xx.x can be installed in Slots 1 to 6 and 12 to 17.
The AD-1C-xx.x has the following internal features:
• Two cascaded passive optical interferential filters perform the channel add and drop functions.
• One software-controlled VOA regulates the optical power of the inserted channel.
• Software-controlled VOA regulates the insertion loss of the express optical path.
• Internal control of the VOA settings and functions, photodiode detection, and alarm thresholds.
• Software-monitored virtual photodiodes (firmware calculations of port optical power) at the
common DWDM output and input ports.
Figure 16-36 shows the AD-1C-xx.x faceplate.
Table 16-35 4MD-xx.x 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
there is an internal hardware failure. Replace the card if the red FAIL LED
persists.
Green ACT LED The green ACT LED indicates that the 4MD-xx.x 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 illuminates when the transmit and receive
fibers are incorrectly connected. When the fibers are properly connected, the
light turns off.