User's Manual

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©2013 Broadcast Electronics
Troubleshooting 7
Some basic information and troubleshooting steps are included below. If problems persist after basic
troubleshooting steps are taken, please contact RF Technical Services. Contact information is located
on our website at www.bdcast.com
and on page iii in the front of this manual.
A fault in any part of the system indicates a complete disruption in normal operation of at least one
part of the system. A fault reset command should always be issued through diagnostics in any user
interface to correct fault conditions once the problem has been identified. If the reset is not
successful or a condition that caused a fault still remains, the fault will re-assert.
An alarm typically indicates an abnormal condition that is expected or should resolve itself. Alarms in
unexpected situations could indicate serious conditions. Alarms that persist for long periods of time
or unexpectedly appear on a regular basis should not be ignored. To get a good feel for what alarms
are expended under which conditions, see the alarm details in the sections that follow.
7.1 Event Log
The system event log can be accessed through the web interface log page or in its raw form
through the eventLog tree in SNMP. An event is defined by its index starting with the first
saved event at index 1, a timestamp from the system’s internal real time clock, an event
identification number, and the sub-system where the event triggered. Some events also have
context-based parameters that are embedded in the description of the event.
7.2 Standby
The STXe Exciter comes with built-in functionality for a standby controller and exciter – see
section 6.2 Standby System Control and Exciter. A system that is in standby is muted and not
actively controlling the transmitter. This mode is not intended in a setup that has a single
system controller and exciter. Standby system control and exciter setups should also be able
to have no more than one unit active at a time.
If a system is stuck in standby mode, this typically indicates a setup problem. Single system
controller and exciter setups require a stub 949-4130 that activates the transmitter. This
must be attached to the BE Interface jack, please see the appropriate section in the
installation and maintenance guide. Dual system controller and exciter setups require a
switcher system, such as our FW Exciter Switcher product series, that connects to both
assemblies through this interface. The switcher must be operated to activate one
controller/exciter.
7.3 Failsafe
An asserted failsafe input on the remote station interface is required for operation of the
system. The intended usage of this input is to make a loop that passes through safety relays
in all critical transmission system components. When any part of the transmission system
becomes unsafe, the circuit should open and de-assert the failsafe on the transmitter. When
a failsafe condition is active, check all systems that are wired into the failsafe circuit.