User manual

Chapter 3. Installation
3-5 FMUX-01Mar 2003
3-5-2 Channel Port I/F Module Removal / Replacement
All 4-Channel Port Cards install into the rear of the MULTIPLEXER UNIT. The
channel connector is held by two "thumb" screws. Loosen both thumb screws (use a flat
blade screwdriver if they are too tight), then remove the connector adapter by gently pulling
straight back. The 4-Channel Port cards are held in by three small flathead screws. Using a
No.2 Philips screwdriver, remove the two upper and one lower screw, then pull the module
straight out (refer to the pictures below). To install the 4-Channel Port module, reverse the
procedure, taking care when seating the module to avoid connector damage. Gently seat it,
do not force it! Re-install the three flathead screws and do not over-tighten. Then re-install
the appropriate channel adapter and tighten the thumb screws gradually and evenly.
Tightening by hand is sufficient.
Figure 3-6 : 4-Channel Port Module Removal / Replacement
Channel
Adapter
held by
"Thumb"
Screws
4
-
Channel
Port
Module
being slid
from
chassis
Adapter
removed
exposing
the 4-
Channel
Port
Module