Paradise RA 5785 User Manual Page 5

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Operations Manual, HPA3, Mini Compact Outdoor SSPA 208143 REV - 5
Section 6: Maintenance and Troubleshooting .................................................................. 53
6.0 Introduction ........................................................................................................... 53
6.1 Cooling System Maintenance ............................................................................... 53
6.2 Fan Removal and Heatsink Cleaning .................................................................... 53
6.2.1 Fan Replacement ............................................................................................... 53
6.3 Troubleshooting guide .......................................................................................... 54
6.3.1 Unit doesn’t power up .............................................................................. 51
6.3.2 Unit powers on, LED lamp glows red ...................................................... 54
6.3.3 SSPA unit powers up, LED lamp glows green, no RF output present ..... 54
6.3.4 Cannot connect to SSPA through remote control interface ..................... 54
6.3.5 The FSK link between a modem and the SSPB unit is not working ........ 55
Section 7: Redundant System Operation .......................................................................... 57
7.0 Redundant System Concepts ............................................................................... 57
7.1 1:1 Redundant Systems ........................................................................................ 57
7.2 1:2 Redundant Systems ........................................................................................ 58
Section 8: Remote Control Interface .................................................................................. 59
8.0 Serial Protocol Overview ....................................................................................... 59
8.1 Serial communication ............................................................................................ 61
8.1.1 Header Packet ........................................................................................ 61
8.1.1.1 Frame Sync Word ...................................................................... 61
8.1.1.2 Destination Address .................................................................. 61
8.1.1.3 Source Address ......................................................................... 62
8.1.2 Data Packet ............................................................................................. 62
8.1.2.1 Protocol ID ................................................................................. 62
8.1.2.2 Request ID................................................................................. 62
8.1.2.3 Command .................................................................................. 62
8.1.2.4 Data Tag .................................................................................... 63
8.1.2.5 Data Address / Error Status / Local Port Frame Length ............ 64
8.1.2.6 Data Length ............................................................................... 64
8.1.2.7 Data Field .................................................................................. 64
8.1.3 Trailer Packet .......................................................................................... 65
8.1.3.1 Frame Check ............................................................................. 65
8.1.4 Timing issues .......................................................................................... 65
8.1.5 Serial Communications Protocol ............................................................. 66
8.2 Ethernet Interface ................................................................................................. 70
8.2.1 Overview ................................................................................................. 70
8.2.2 IPNet Interface ........................................................................................ 70
8.2.2.1 General Concept ....................................................................... 70
8.2.2.2 Setting IPNet interface ............................................................... 72
8.2.2.3 Troubleshooting IP connectivity ................................................. 72
8.2.3 SNMP interface ....................................................................................... 73
8.2.3.1 SNMP MIB tree .......................................................................... 74
8.2.3.2 Description of MIB entities ......................................................... 75
8.3 M&C via SNMP ..................................................................................................... 79
8.3.1 Connecting to a MIB browser .................................................................. 80
Appendix A: Documentation .............................................................................................. 81
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