RAD Data comm ASMi-52 Manuale Utente
Installation and Operation Manual
Chapter 3 Operation
ASMi-52 Ver. 2.5
Controls and Indicators
3-3
Table 3-1. ASMi-52 Front Panel LEDs
Name Function
PWR (green)
On – Power is ON
TST (red)
On – A loopback test is active in a 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
On (green) – Link A is synchronized
Blinks – The line is connected properly and the
synchronization process is taking place
SYNC B
(red/green)
(red/green)
On (red) – Link B is not synchronized
On (green) – Link B is synchronized
Blinking – The line B is connected properly and the
On (green) – Link B is synchronized
Blinking – The line B is connected properly and the
synchronization process is taking place
AIS (yellow)
On – “All 1s string” is received at the E1 interface
YELLOW (yellow)
On – “All 1s string” is received at the T1 interface
E1/T1 SYNC (red)
On – Loss of E1 or T1 synchronization
DATA (yellow)
Blinking – Data is being transferred
ALM (red)
On – An alarm enters the buffer of local or remote unit
ACT (yellow)
For Ethernet, blinks according to the Ethernet traffic activity
(10/100BaseT connector), available only when multiplexed
Table 3-2. ASMi-52 Rear Panel LEDs
Name Function
ACT (yellow)
Blinks according to the Ethernet traffic activity (10/100BaseT
connector)
LINK (green)
On – Good link integrity (10/100BaseT connector)
Normal Indications
Upon turning on ASMi-52, the PWR LED in the front panel lights to indicate that
ASMi-52 is on.
ASMi-52 is on.
Table 3-3
shows the correct status of the indicators a few seconds
after the units were synchronized.
Table 3-3. ASMi-52 Indicator Status
Indicator Status
PWR On
TST Off
ALM Off
SYNC
PWR On
TST Off
ALM Off
SYNC
On (green)
If the above LED indications do not appear following initial power activation, refer
to
to
Chapter 5
for the diagnostic test instructions.