Installing The 23-Inch Dcm Shelf - Fujitsu FLASHWAVE 7500 Installation Manual

2.9.2

Installing the 23-Inch DCM Shelf

The dispersion compensation module (DCM) shelf (FC9512SFD3), if needed, provides
dispersion compensation for dense wavelength division multiplexing (DWDM) signals
entering the NE.
Figure 2-19 [p. 2-33]
units. Figure 2-20 [p. 2-34]
single-height DCM units. Issue 03 of the SFD3 DCM shelf supports DCM fiber diversity
mounting units, which allows the routing of fiber to either side of the shelf.
Optical Input
Optical Output
DCM Shelf
Cover
Thumbscrews
Note: The shelf (SFD3) holds up to four DCM units. For
clarity, only two are shown.
Figure 2-19: DCM Unit and 23-Inch SFD3 Shelf (Exploded View)
FNC-7500-0061-200
Issue 1, May 2009
Revision 1, June 2009
shows the 23-inch DCM shelf (SFD3) with two single-height DCM
shows Issue 03 of the 23-inch DCM shelf (SFD3) with two
Cover Removal/Replacement
Fujitsu and Fujitsu Customer Use Only
Core Configuration
Installing Fans and DCM Shelf
Retaining Clips on Shelf
(for Fiber Routing)
Unit Removal/Replacement
DCM Unit (Two
Secondary Latch
Shown)
FLASHWAVE 7500 Release 6.1
Equipment Installation
CHAPTER 2
2-33