TANDBERG TT1260 Reference Manual page 75

5.1 Introduction
There are two Front Panel LEDs that indicate the status of the TT1260. There is also one
summary alarm relay and six additional alarm relays (optional). These are used to indicate
abnormal performance of the unit.
5.2 Location of the Alarm and Lock LEDs
The red ALARM LED is used to indicate an equipment fault condition, for example a missing
or faulty input signal. It should be off during correct operation, although it may be lit briefly
during power-up.
The green LOCK LED is used to indicate that the equipment is locked to a transport stream
when lit, and indicates correct conditions and correct system functioning.
Figure 5.1: Front Panel LEDs
5.3 Alarm LED and Summary Relay
The TT1260 supports a summary alarm signal that is active when one or more of the
individual monitored alarm conditions are active. It allows masking of unwanted alarm
conditions so that they do not contribute to the summary alarm. Configuration of alarms is via
the Front Panel and remote control interfaces. The state of the summary alarm is reflected by
the Alarm LED on the front panel where red represents an alarm, and off represents no alarm.
The summary alarm relay is active when the alarm LED is active.
These indicators provide a high-level indication of an alarm within the unit. The alarm list
depends on the unit model. The unit continuously monitors for the following alarm conditions
during normal operation: (if not masked, see Menu 5, Annex C, Menus):
•
No transport stream
•
Video not running
•
Audio 1 not running
•
Audio 2 not running
•
Temperature exceeding 65ºC
Reference Guide: TT1260 Contribution Receiver
ST.RE.E10100.3
Alarm LED
Lock LED
Alarms
Page 5-3