Wegener Communications UNITY 4600 ユーザーズマニュアル

34 

 800032-01 Rev. G 

www.wegener.com

The 

 also has two LED (light-emitting diode) indicators on the rear panel. They 

provide the following indications:

LAN – Green LED: On if active LAN connection detected. OFF otherwise.

ACT – Yellow LED: Flashing ON if ethernet packets are output or addressed packets are 
input. OFF otherwise.

GREEN constant

Unit is processing services for delivery

Off

Unit is not processing services

YELLOW constant

One or more warning indications exist, usually the failure of a non-
essential item, or to warn of an impending failure of an essential 
item

Off

No warning conditions

GREEN constant

A user cue relay is closed (energized).

GREEN flutter

During a user relay “pulse” activation on any relay.

Off

All user cue relays are open (de-energized).

RED constant

One or more current alarm indications.

RED blink

An alarm event has occurred in the past and has not been 
acknowledged and cleared by the user. Note that this state may 
exist together with a current alarm (RED constant). In that case, 
the blink state is defined as quickly cycling OFF-ON-OFF 
(~100ms each) approximately every 2 seconds.

Off

No alarm condition currently exists.

GREEN constant

Unit has transport MPEG sync and the stream is not scrambled 
(in the clear). Streams that are “clear” are always presumed to be 
“authorized”.

OR

Unit is authorized for current scrambled transport stream (or 
selected program) and has transport MPEG sync. When using 
Wegener CA (’97 Version), being “authorized” means being 
addressed with current and valid ciphered keystream messages. 
In a PIN system, if the transport stream is scrambled, and the unit 
has been programmed with any key other than the null ‘00000’, 
then it presumes that it is “authorized”.

GREEN flutter

Unit has successfully deciphered a valid descrambling seed in the 
last five seconds. Normal behavior in functioning CA system.

Off

Unit has transport sync, the transport stream is scrambled, and 
the unit is NOT authorized. Also OFF if no transport sync.

* LED states are defined as follows:   Blink - alternating ON for ~100ms and OFF for ~2 seconds; Flash - alternating 
ON for ~500ms and OFF for ~500ms. Flutter - like flash but with shorter ~100ms ON and OFF times.