Figure 4-21 Cable From The Modem To The Multiband Combiner, Exemplary; Figure 4-22 Modem Kit Hc25 / Phs8 / Pls8 Node Am, Schematic Wiring - CommScope Node AM4 Manual

4. Functional Description
The modem output is connected to the modem coupler port on the rear side of the
multiband combiner, or – in case an external modem antenna or directional coupler is
used – to the modem RF port; see following exemplary illustration:
RF coupling port
10 dB at combiner
figure 4-19 Cable from the modem to the multiband combiner, exemplary
Connect the wires, cables and connectors of the HC25 / PHS8 / PLS8 modem kit
according to the following wiring illustration (both types are identical except the fact that
the RS232 connector must not be used with the PHS8/PLS8 types):
Cable AC/DC USB
0.27m USB Typ A
to UI2 Board
figure 4-20 Modem Kit HC25 / PHS8 / PLS8 Node AM, schematic wiring
MF0121ACP_uc.docx
exemplary
Multiband
combiner
RF cable
DC supply connector
for GPS LNA option
Modem RF port
M3.0x 35mm hexagon
UMTS Modem
socket-head-cap screw
Siemens HC25T
Cable AC/DC
to UI2 Board
AWG26 240 mm
6-wires
All unmarked screw joints:
nominal-tightening torque values
according to QA 7.5.1.090/F1011P0
Part(s) to be clean and free of all chips,
burrs, sharp edges and foreign material
Manual for Node AM4
RF input of
HC25 / PHS8 /
PLS8 modem
not used
Cable RF RG-316 0.3m
FME female straight
to combiner
to UI2 Board
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