Cisco Cisco 1 GHz GainStar Node Guida All'Installazione

Cisco

Contents

iv

Closing the Line Extender Housing .................................................................................... 26

To Close the Line Extender Housing ..................................................................... 26

Torquing Sequence ................................................................................................... 26

Balancing and Setup

Preparing for Forward Path Balancing ............................................................................... 28

Before You Begin ....................................................................................................... 28

Balancing the Forward Path ................................................................................................. 29

Introduction ............................................................................................................... 29

To Verify the Forward Input Level ........................................................................ 29

To Determine the Output Tilt ................................................................................. 30

To Set Up the Output Tilt ........................................................................................ 31

To Set Up the Forward Output Level .................................................................... 32

Balancing the Reverse Path .................................................................................................. 34

Introduction ............................................................................................................... 34

To Set Up the Reverse Input Level ......................................................................... 34

To Set Up the Reverse Output Level ...................................................................... 35

To Set Up the Equalizer Values for Reverse Path ................................................ 36

Troubleshooting

Equipment ............................................................................................................................... 40

No Forward RF Signal ........................................................................................................... 41

No Forward RF Signal Troubleshooting Table ..................................................... 41

Low or Degraded Forward RF Signal ................................................................................. 42

Low or Degraded Forward RF Signal Troubleshooting Table ........................... 42

No Reverse RF Signal ............................................................................................................ 43

No Reverse RF Signal Troubleshooting Table ...................................................... 43

Low or Degraded Reverse RF Signal .................................................................................. 44

Low or Degraded Reverse RF Signal Troubleshooting Table ............................ 44

No Power Supply ................................................................................................................... 46

No Power Supply ...................................................................................................... 46

Boot Color Table ..................................................................................................................... 47

Customer Support Information

Appendix A Technical Information

Forward Cable Equalizer ...................................................................................................... 52

1 GHz Forward Cable Equalizer Loss Table ......................................................... 52

Forward Inverse Cable Equalizer ........................................................................................ 53

105 MHz Inverse Equalizer Loss Table .................................................................. 53

Reverse Cable Equalizer ....................................................................................................... 54

85 MHz Reverse Cable Equalizer Loss Table ........................................................ 54