Specifications

Installation and Operation Manual Chapter 3 Operation
ASMi-52 Ver. 2.8 Indicators 3-3
Table 3-1 lists and describes the front panel indicators.
Table 3-1. Front Panel LEDs
Name Color State Description
PWR Green On Power is On
TST Red On A loopback test is active in a local or remote unit
SYNC A/B Red/green On (red)
On (green)
Flashing
Link is not synchronized
Link is synchronized
The line 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 Flashing Data is being transferred
ALM Red On An alarm enters the buffer of local or remote unit
ACT Yellow Flashing For Ethernet, flashes according to the Ethernet traffic
activity (10/100BaseT connector), available only when
multiplexed
Rear Panel Indicators
Table 3-2 lists and describes the rear panel indicators.
Table 3-2. Rear Panel LEDs
Name Color State Description
ACT Yellow Flashing Flashes according to the Ethernet traffic activity
(10/100BaseT connector)
LINK Green On Good link integrity (10/100BaseT connector)