26 IQ-636X-2/E Installation Manual — P/N 52853:K3 9/28/15
Installation Mounting Option Boards
3.6 Mounting Option Boards
If installing option boards into a CAB-4 Series backbox, mount and connect those boards at this
time. General instructions follow; the sections about individual option boards contain any module-
specific instructions such as mounting LEM-320’s stacker-connector.
3.6.1 Option Boards in the IQ-636X-2/E Chassis
Mount option boards in slots 3 and 4 of the IQ-636X-2/E chassis. (See Figure 3.2, Figure 3.6, and
Figure 3.7.) For standoff lengths, see Table 3.2.
NOTE: Another option board can be mounted above a Loop Expander Module; for ease of
access, be sure to complete installation of those devices before mounting a second layer.
NOTE: If using the fourth (right-side) position of the IQ-636X-2/E chassis, the chassis needs to
be installed on the backbox before option boards or modules are installed in that position. These
modules will block access to the keyhole opening.
Figure 3.6 Attaching Option Boards Behind KDM-R2
2-640_assembly_3-4-2.wmf
Attach LEM-320 or other
option board to 1 inch
standoffs previously installed
on CPU. (See Section 3.6,
“Mounting Option Boards”).
Attach KDM-R2
to chassis rails
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