Overview
Block Up Converter Systems 6700/6900 series User Guide 21
BUC faults
The redundancy controller uses a PLD to monitor the alarm
signals from both BUCs. The BUCs send alarm signals via
cables connected to the 14-way BUC 1 Control and BUC 2
Control connectors on the redundancy controller.
Red BUC 1/BUC 2 LEDs on the control panel of the
redundancy controller indicate that there is a fault with the
corresponding BUC or LNB. In transmit-only systems,
receive stream faults are not indicated. You should observe the
LED indicators on the BUC for details of the alarm condition.
For information on the LED indications on the BUC see
Table 11 on page 59. You can connect a Hand-held
Controller 6560 or a PC running terminal-emulating software
to the BUC 1 Serial and BUC 2 Serial connectors on the
redundancy controller, then diagnose the BUC faults as
required. For more information on using the hand-held
controller see the Hand-held and Remote Controller
6560/6570 User Guide. For more information on using serial
commands on a terminal see page 63, Serial interface
commands.
If you are using remote monitoring and control via a Remote
Controller 6570, the Fault LED for a BUC will illuminate if a
fault is detected. You can use the Faults menu in the remote
controller to diagnose the fault, and the Reset menu to clear
latched faults. For more information on using the remote
controller see the Hand-held and Remote Controller
6560/6570 User Guide.
Power supply
The redundancy controller is powered from the AC mains
supply.
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