Figure 2-7. I/O Backplane Board
LEGEND
Item Description Item Description
1 J1 connects to J4 on Comm Backplane
board (see permissible Modules in the
diagram below)
3 4 - J3 connectors for USM, I/O, MDIM or LVDIM-
Modules (see permissible Modules in the diagram
below)
2 J2 connects to J1 Expansion board
(Expansion board is optional)