Cisco Model GS7000 4-Port Node 1 GHz with 42 54 Split Installation Guide
Appendix C
Enhanced Digital Return Multiplexing Applications
220
OL-29643-02
Transmitter Module Setup Procedure
Perform the following steps to set up the reverse transmitter module(s).
1 Open the housing according to Opening and Closing the Housing (on page 136).
2 In the base of the housing verify that the Reverse Configuration Module installed
1 Open the housing according to Opening and Closing the Housing (on page 136).
2 In the base of the housing verify that the Reverse Configuration Module installed
in the RF amplifier is correct for your application.
IF you have installed...
THEN the installed Reverse Configuration
Module must be...
The minimum configuration of
one 1:1 transmitter module in
transmitter positions XMTR 1
one 1:1 transmitter module in
transmitter positions XMTR 1
an appropriate Reverse Configuration
Module
Refer to the RCM Section on page 40 for
details.
Module
Refer to the RCM Section on page 40 for
details.
The minimum configuration of
one 2:1 transmitter module in
transmitter positions XMTR
1/XMTR 2
one 2:1 transmitter module in
transmitter positions XMTR
1/XMTR 2
an appropriate Reverse Configuration
Module
Refer to the RCM Section on page 40 for
details.
Module
Refer to the RCM Section on page 40 for
details.
The maximum configuration of
two 2:1 transmitter modules in
transmitter positions XMTR
1/XMTR 2 and XMTR 3/XMTR 4
two 2:1 transmitter modules in
transmitter positions XMTR
1/XMTR 2 and XMTR 3/XMTR 4
an appropriate Reverse Configuration
Module
Refer to the RCM Section on page 40 for
details.
Module
Refer to the RCM Section on page 40 for
details.
The maximum configuration of
four 1:1 transmitter modules in
transmitter positions XMTR
1/XMTR 2 and XMTR 3/XMTR 4
four 1:1 transmitter modules in
transmitter positions XMTR
1/XMTR 2 and XMTR 3/XMTR 4
an appropriate Reverse Configuration
Module
Refer to the RCM Section on page 40 for
details.
Module
Refer to the RCM Section on page 40 for
details.
3 Verify the level of the reverse path RF signal at the RF test points on the RF
module. Nominal level is +15 dBmV per channel. Install the appropriate value
input pad at the REV PORT IN PAD location to give the desired signal level into
the node.
input pad at the REV PORT IN PAD location to give the desired signal level into
the node.
4 Repeat step 3 for each RF cable carrying a reverse path signal.
5 Measure the transmitter module(s) optical output power.
6 Check the connection of the optical connector. Make sure the optical connector is
5 Measure the transmitter module(s) optical output power.
6 Check the connection of the optical connector. Make sure the optical connector is
seated and verify fiber bend radius is greater than 1 inch.
WARNING:
When handling optical fibers always follow laser safety precautions.