Cisco Model GS7000 4-Port Node 1 GHz with 42 54 Split Installation Guide
Contents
iv
OL-29643-02
Reconfiguring Forward Signal Routing ............................................................................ 113
Reconfiguring Reverse Signal Routing ............................................................................. 124
Maintenance 135
Opening and Closing the Housing .................................................................................... 136
Preventative Maintenance .................................................................................................. 138
Removing and Replacing Modules ................................................................................... 141
Care and Cleaning of Optical Connectors ........................................................................ 148
Troubleshooting 153
No RF Output: Optical Power LED on Receiver Module is off ..................................... 154
No RF Output: Fiber Optic Light Level is Good, Receiver Optical Power LED is on 156
Poor C/N Performance ....................................................................................................... 158
Poor Distortion Performance .............................................................................................. 160
Poor Frequency Response ................................................................................................... 162
No RF Output from Reverse Receiver .............................................................................. 164
Customer Support Information
165
Appendix A Technical Information
167
Linear Tilt Chart ................................................................................................................... 168
Forward Equalizer Chart .................................................................................................... 169
GS7000 Node Accessory Part Numbers ............................................................................ 170
Appendix B bdr Digital Reverse Multiplexing Applications
173
Digital Reverse System Overview ..................................................................................... 174
Digital Reverse Transmitter Module Installation ............................................................ 182
Transmitter Module Setup Procedure .............................................................................. 185
Reverse Balancing the Node with Digital Reverse Modules ......................................... 186
Troubleshooting ................................................................................................................... 189
Appendix C Enhanced Digital Return Multiplexing Applications 191
Enhanced Digital Return System Overview .................................................................... 192
Enhanced Digital Return (EDR) System Installation ...................................................... 211
Transmitter Module Setup Procedure .............................................................................. 220
Reverse Balancing the Node with EDR ............................................................................ 222
Troubleshooting ................................................................................................................... 225
Appendix D Expanded Fiber Tray
231