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Indicators Passport 4400 Hardware Installation Manual
8-5
Table 8-4. E1 Operational States
Table 8-5. T1 and E1 Status Indicator Initialization States
Indicator Function State Status
AT System Status Off Initialization mode – see Table 8-5
Green Operational mode
Flashing green Download active
1A, 2A E1 Line 1 (1A) and
Line 2 (2A)
interface alarm
status
Off Interface not active
Flashing red IFAS (Frame Alignment Signal)
loss
Flashing amber FAS distant alarm
Fast flashing
green
TS16 AIS (Time Slot 16 Alarm
Indication Signal)
Green Interface operational
Fast flashing red CRC4 loss or MFAS loss
Flashing green AIS (Alarm Indication Signal)
Fast flashing
amber
MFAS distant alarm
1T, 2T E1 Line 1 (1T) and
line 2 (2T)
interface test
status
Red Line loopback test in progress – 1A
or 2A shows test status
Flashing red Channel loopback or pattern test in
progress
Off No test
D1, D2 Data ports 1 (D1)
and 2 (D2)
Off Not active
Green Connected
Flashing green Loopback mode
T1/E1 indicator D2 D1 DT/2T DA/2A XT/1T XA/1A AT
Power Off Off Off Off Off Off Off Off
Reset Green Green Red Off Red Off Green
RAM Test Off Off Off Red Off Off Off
Boot Checksum Test Off Off Off Off Red Off Off
Download Required Off Off Red Off Off Off Off
Downloading Code Off Off Off Off Off Off FlashGrn
TAM Initialization Off Off Off Off Off Red Off