Appendix B
Enhanced Digital Return Multiplexing Applications
186
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 122).
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
an appropriate Reverse Configuration 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
an appropriate Reverse Configuration 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
an appropriate Reverse Configuration 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
an appropriate Reverse Configuration 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.
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
seated and verify fiber bend radius is greater than 1 inch.
WARNING:
When handling optical fibers always follow laser safety precautions.
Содержание GS7000
Страница 1: ...Cisco 1 2 GHz GS7000 Node Installation and Operation Guide ...
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Страница 7: ...Contents v Glossary 213 Index 225 ...
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Страница 19: ...Laser Warning Labels xvii ...
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Страница 23: ...Equipment Description 3 The following illustration shows the external housing of the 1 2 GHz GS7000 Node ...
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Страница 38: ...Chapter 2 Theory of Operation 18 Left Right Segmented ...
Страница 84: ...Chapter 2 Theory of Operation 64 1 1 EDR Transmitter 3 2 1 EDR Transmitter 7 ...
Страница 96: ...Chapter 3 Installation 76 ...
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Страница 112: ...Chapter 4 Setup and Operation 92 Left Right Segmented ...
Страница 116: ...Chapter 4 Setup and Operation 96 Right side Ports 4 5 and 6 illustration ...
Страница 143: ...Opening and Closing the Housing 123 ...
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Страница 232: ...Appendix C Expanded Fiber Tray 212 ...
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