Cisco GS7000 Installation And Operation Manual page 81

6 Set the receiver module attenuator switch as follows:
Standard Receiver
Low Input Receiver
7 For standard input receiver, check the RF level at the -20 dB RF test point on each
forward path receiver. Signal level should be +7 dBmV at the test point with 0
dBm optical input power and 2.5% index modulation of the laser headend
transmitter. (With optical receiver attenuator set to the -8 dB switch setting.) This
represents an optical receiver output of +27 dBmV. For low input receiver follow
the same process to check the RF level and refer the table below.
For standard receiver For low input receiver
Output level
Input optical
power
8 The next step depends on your RF output levels.
IF your RF output ports will...
all have equal output levels
be driven at different levels
IF received optical power is...
—2 to +2 dBm
-6 to -2 dBm
-6 to -2 dBm
-8 to -6 dBm
27dBmV
0dBm
and you have...
1X segmentation
1X segmentation
Forward Path Setup Procedure
THEN set the attenuator
switch to...
-8 dB
0 dB
-8 dB
0 dB
27dBmV
-4dBm
Att/OMI
8 dB/2.5%
8 dB/2.5%
THEN...
Go to step 9.
Go to step 10.
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