Cisco Cisco GS7000 4-Port 1GHZ Node Installation Guide
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5 Remove the existing Low Pass Filter Trim modules (4 places)
6 Install the new split Low Pass Filter Trim modules.
7 Replace the reverse amplifier cover. Use the 8 screws removed previously,
7 Replace the reverse amplifier cover. Use the 8 screws removed previously,
and tighten at 11 – 14 in-lb (1.25 – 1.58 Nm).
8 Turn the RF module over for access to top side.
9 Loosen the screw on top of the diplexer 4 places and remove diplex filters.
There are two (2) “mirrored” (blue PCB material) and two (2) “non-
mirrored” (green PCB material) diplex filters.
mirrored” (green PCB material) diplex filters.
10 Install the four (4) new diplex filters. “Mirrored diplexers” (blue PCB material)
are installed near ports 4 and 5, “non-mirrored diplexers” (green PCB material)
are installed near ports 1 and 2. The diplexers have plastic guides which are
keyed to aid in insertion. Tighten diplexer cover screws to 6 – 8 in-lb (0.68 – 0.9
Nm) to secure metal diplexer cover.
are installed near ports 1 and 2. The diplexers have plastic guides which are
keyed to aid in insertion. Tighten diplexer cover screws to 6 – 8 in-lb (0.68 – 0.9
Nm) to secure metal diplexer cover.
11 Using Needle Nose pliers extract the High Pass Filter Modules (4 places).