Arris NC4000 - Page 64

4-20
NC4000 1 GHz Node
TM 87-10923 Rev E
Figure 4.18
RF Return Path to
Transceivers—From
OA4324HG RF
Amplifier
RF cabling between the OA4324HG RF amplifier and the lid motherboard is shown in Table 4.7 on
page 4-19 Always use an RS4000 return path configuration module (on the lid motherboard) with
OA4324HG RF amplifiers. See Figure 4.20 on page 4-21 for plug-in location.
Table 4.7 Return Path Cabling—OA4324HG RF Amplifier to Lid Motherboard
Segmentation Options
RF Amp
Input
RF Amp
Output
Lid
Motherboard
One return segment
P1, P3, P4, P6
R1 OUT
RET 6
Two return segments
Two transceivers
P1, P3
P4, P6
R1 OUT
R2 OUT
RET 6
RET 3
This is the default configuration from the factory.
Two return segments
One transceiver
P1, P3
P4, P6
R1 OUT
R2 OUT
RET 6
RET 4
Return path RF cable connections determine the return path segmentation (1 or 2 segments).
Return path configuration plug-in RS4000 is required in all cases.
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