ETL600 1KHW001489-EN ABB Switzerland Ltd
3.3.1.1. Frontplate
AL
AF
O4LE
RDY
RDY
ENA
0
2
3
7
8
12
SERVICE-
PHONE
RESET
SERVICE-
PHONE
'AL' LED red: Module hardware alarm
This LED is on, if a hardware alarm on the module is
detected.
'RDY' LED green: Module ready
On as long as the module is in normal operation
mode.
Flashes slowly during hardware alarm,
flashes fast corresponding to E&M signaling.
'U ' LED yellow: Module warning
On as long as the module is not in normal operation
mode and no module alarm is present.
OP-PHONE:
'RDY' LED green: Service phone ready
On if the speech channel is available for the service
phone.
'ENA' LED green: Service phone enabled
On if the service phone is enabled on the module.
Flashes if the service phone is ringing.
'RESET' Push button: Reset
When pressed, the module resets and fetches
configuration data from flash EPROM.
Socket for the service phone.
Fig. 3-13 Frontplate O4LE
Structure and Function November 2005 3-19