Cisco D9477-1 Installation And Operation Manual page 8

Contents
Inspect the MQAM ................................................................................................................ 62
Quarterly Inspection ................................................................................................. 62
Replace the Fuse ..................................................................................................................... 63
Replacing the Fuse .................................................................................................... 63
Diagnose the Fan .................................................................................................................... 65
Diagnosing the Fan ................................................................................................... 65
Replace the Fan ...................................................................................................................... 66
When Can I Perform This Procedure? ................................................................... 66
Location of Fans ........................................................................................................ 66
Replacing the Fan ...................................................................................................... 67
Chapter 5 Troubleshooting the MQAM
Alarm Conditions .................................................................................................................. 70
Purpose and Severity Levels of MQAM Alarms .................................................. 70
LCD Alarm Display .................................................................................................. 71
Reading the Display ................................................................................................. 71
Troubleshooting Alarm Messages ....................................................................................... 72
Front Panel LCD Alarm Messages ......................................................................... 72
Troubleshooting Boot Screen Error Messages ................................................................... 79
Booting Error Messages ........................................................................................... 79
Chapter 6 Customer Information
Appendix A Technical Specifications
Installation and Operation Requirements .......................................................................... 86
Power Requirements Table ...................................................................................... 86
Rack Requirements Table ........................................................................................ 86
Environmental Requirements Table....................................................................... 87
RF Specifications .................................................................................................................... 88
ASI Input Specifications ........................................................................................................ 89
Modulation Specifications .................................................................................................... 90
Modulation Specifications Table ............................................................................ 90
Digital I/O Performance Specifications .............................................................................. 91
Digital I/O Performance Specifications Table ...................................................... 91
Connector Type ...................................................................................................................... 92
Connector Type Table .............................................................................................. 92
Factory Default Settings ........................................................................................................ 93
Factory Default Settings Table ................................................................................ 93
Standard Output Frequencies .............................................................................................. 94
Index
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78-717866-01 Rev D