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Chapter 3 Operation ASMi-52L Installation and Operation Manual

3-2 Controls and Indicators

Table 3-1. ASMi-52L Front Panel LEDs

Name Function

PWR (green) On – Power is ON

TST (red) On – A loopback test is active in local or remote unit

SYNC A

(red/green)

On (red) – Link A is not synchronized

On (green) – Link A is synchronized

Blinks – The line is connected properly and the

synchronization process is taking place

SYNC B

(red/green)

On (red) – Link B is not synchronized

On (green) – Link B is synchronized

Blinking – The line B is connected properly and the

synchronization process is taking place

DATA (yellow) Blinking – Data is being transferred

ALM (red) On – An alarm enters the buffer of local or remote unit

Table 3-2. ASMi-52L Rear Panel LEDs (Ethernet Option)

Name Function

ACT (yellow) Blinks according to Ethernet traffic activity (10/100BaseT

connector)

LINK (green) On – Good link integrity (10/100BaseT connector)

Table 3-3 shows the normal status of the indicators a few seconds after the units

are synchronized.

Table 3-3. ASMi-52L Indicator Status

Indicator Status

PWR ON

TST OFF

ALM OFF

SYNC ON (green)

If the above LED indications do not appear following initial power turn-on, refer to

Chapter 6 for diagnostic test instructions.

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RAD Data comm ASMi-52L Spécifications Page 30