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LEDÕs are unique for each of these modes.
3.2
LED & ALARM / WARNING CONDITIONS
The following definitions apply throughout this section:
BLINK
FLASH
FLUTTER
AMBER
The UNITY4000 has eight front panel LEDÕs, each of which is described below.
3.2.1
Carrier (Green)
ON if receiver board is tracking (IRD not necessarily in tracking mode). Otherwise FLASH.
3.2.2
AGC (Green)
ON if RF level is OK and receiver board is tracking. FLASH if RF level is HIGH or LOW and
receiver board is tracking. Otherwise OFF (receiver board is not tracking).
3.2.3
MPEG (Green)
ON if synced on MPEG stream. FLASH if no MPEG sync but locked on carrier. Otherwise
OFF.
3.2.4
Cue (Green)
ON while any relay is closed. Also, relay must be ON for a minimum of 1 second. Otherwise,
OFF.
Note that the relays are often used for local audio or video insertions. It is assumed that
relay 1 is momentary and starts the systemÕs insertion equipment. The actual switch is
accomplished by the local commercial insertion controller.
3.2.5
COMPELª (Green)
FLUTTER if COMPEL addressed to unit within last 5 seconds (keep alive commands are not
considered to be addressed to unit). ON if COMPEL. received within last 2 minutes. OFF if
UTY4000-011
Table 13. LED and Alarm Conditions
LED is OFF for 1 second, and then blinks on count times ( ON for
250 Ms and OFF for 250 Ms). This overall pattern is continued.
ON for 100Ms, OFF for 100Ms, É
ON for 50 Ms, OFF for 50 Ms.
RED and GREEN turned ON at the same time.
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