Cisco ONS 15454 DWDM Reference Manual

5-21
Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
Chapter 5 Multiplexer and Demultiplexer Cards
5.5 4MD-xx.x Card
• Software-monitored photodiodes at the input and output multiplexer and demultiplexer ports for
power control and safety purposes.
• Software-monitored virtual photodiodes at the common DWDM output and input ports. A virtual
photodiode is a firmware calculation of the optical power at that port. This calculation is based on
the single channel photodiode reading and insertion losses of the appropriated paths.
Figure 5-17 shows the 4MD-xx.x faceplate.
Figure 5-17 4MD-xx.x Faceplate
For information on safety labels for the card, see the “5.2.2 Class 1M Laser Product Cards” section on
page 5-10.
Figure 5-18 shows a block diagram of the 4MD-xx.x card.
4MD
-X.XX
FAIL
ACT
SF
RX
15xx.xx
TX
RX
15xx.xx
TX
RX
15xx.xx
TX
RX
15xx.xx
TX
RX
COM
TX
96470

Cisco ONS 15454 DWDM Specifications

General

Chassis Type	DWDM
Form Factor	Rack-mountable
Slots	17
Storage Temperature	-40 to 158°F (-40 to 70°C)
Relative Humidity	5% to 95% non-condensing
Power Supply	AC or DC
Cooling	Internal fans
Operating Temperature	23 to 104°F (-5 to 40°C)
Altitude	0 to 6500 ft (0 to 1981 m)
Safety Compliance	EN 60950-1
EMI Compliance	FCC Part 15