10. Maintenance .......................................................................... 437
Spare Fuses ..................................................................................... 437
Radio Spare Fuses ...................................................................... 437
Additional Spare Fuses .......................................................... 438
Protected Station Spare Fuses ........................................................ 439
No User-Serviceable Components ........................................................... 440
Software Upgrade ............................................................................. 441
Network Software Upgrade ........................................................... 441
Non-Protected Network Upgrade Process .................................... 441
Protected Network Upgrade Process ......................................... 443
Single Radio Software Upgrade ....................................................... 445
File Transfer Method ............................................................ 445
USB Boot Upgrade Method ..................................................... 446
Software Downgrade ............................................................ 446
Protected Station Software Upgrade ................................................ 447
Routine Maintenance ......................................................................... 448
Power Supply Check ................................................................... 448
Temperature Test ...................................................................... 448
Connections ............................................................................. 448
Antenna and Feeder System .......................................................... 448
Transmit Power ......................................................................... 449
Transmit Frequency .................................................................... 449
Transmit Spectrum ..................................................................... 449
11. Interface Connections ............................................................... 450
RJ45 Connector Pin Assignments ............................................................ 450
Ethernet Interface Connections ............................................................. 450
RS-232 Serial Interface Connections ........................................................ 451
RS-232 Pinout .................................................................... 451
RS-232 Customer Cable Wiring ................................................ 451
RS-232 Bit Oriented Mode Wiring ............................................. 452
RS-232 RJ45 LED Indicators .................................................... 452
Alarm Interface Connections ................................................................ 453
Protection Switch Remote Control Connections .......................................... 453
12. Alarm Types and Sources ........................................................... 454
Alarm Types .................................................................................... 454
Alarm Events ............................................................................ 455
Informational Events ................................................................... 461
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