NFS2-640/E Installation Manual —
P/N 52741:P2 7/10/14
27
Mounting Option Boards
Installation
If the NFS2-640/E with NCA-2 is connected to a network, there are two additional options for
programming: either connect the VeriFire Tools programming PC to the network port on the
NCM/HS-NCM board, or program the NFS2-640/E through another network node.
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 NFS2-640/E Chassis
Mount option boards in slots 3 and 4 of the NFS2-640/E chassis. (See Figure 3.2, Figure 3.6, and
Figure 3.7.) For standoff lengths, see Table 3.2.
NOTE:
This is the only NCA-2 application that does not require an NCM or HS-NCM connection
to .
NOTE:
Another option board can be mounted above a Loop Expander Module or Network
Communications 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 NFS2-640/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-
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3
-4
-2
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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
