Chapter 11: ATM Cards
ATM LEDs
146 SmartBits System Reference
ATM LEDs
The same LEDs are used throughout many ATM cards; however, specific cards may have
a unique LED or special function assigned.
Note: Notes for downloading firmware:
• All LEDs turn green during downloading except for the AT-9155C, AT-9622,
and AT-9622s.
• During download, the AT-9045B, AT-9155C, AT-9155Cs, AT-9622 and
AT-9622s flicker red on the TRIG ALARM LED.
Each card has a set of LEDs that are described in Table 11-2.
Table 11-2. LED Functions for ATM SmartCards
LED Color/Status Description
TX/INIT Green
Red
Frame is transmitting. LED flashes briefly for each
frame transmitted. If continuous transmission, light is in
steady on condition.
Link is not ready.
TRIG
ALARM
Green
Red
Yel low
(AT-9015, AT-9020, AT-9025, and AT-9034B)
Trigger Event indication. Flickers for each trigger.
Alarm Event. Flickers for errors in physical layer (check
Alarm and Line tabs via Display Counters in
SmartWindow).
Errors in PLCP frames when PLCP is configured.
TRIG
ALARM
Green
Red
Yel low
(AT-9155 and AT-9155B)
Trigger Event indication. Flickers for each trigger.
Alarm Event. Flickers for path-level SONET alarms.
Alarm Event. Flickers for line- or section-level SONET
alarms.
TRIG
ALARM
Green
Red
(AT-9155C and AT-9622)
Trigger Event indication. Flickers for each trigger.
Alarm Event. Flickers for any SONET alarm.
RX LOS Yellow Loss of signal (optical signal) condition exists.
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