ISDN Unit
A895
LEDS
SM 3-9 A265/A267
3.3 LEDS
There are six LEDs on the G4 Interface board, as shown below.
LED 5 LED 6
LED 1 LED 2 LED 3 LED 4
These LEDs give the following information about the status of the machine.
Initial Settings
O=ON, --=OFF
Power-up/Reset O O
-- -- -- --
Initial setting request from FCU -- O
-- -- -- --
Initial setting confirmation to FCU -- --
-- -- -- --
Communication
Layer 1 activated -- --
O------
Layer 2 set -- --
O O -- --
B channel connected (ISDN G4) -- --
OOO--
B channel connected (ISDN G3) -- --
OO--O
B channel released -- --
O O -- --
Layer 2 released -- --
O------
Layer 1 deactivated -- --
-- -- -- --
The following will be displayed if bit 1 of G4 parameter switch E is at 1.
B channel: send I frame (A blinks at this time if bit 1 of -- A
G4 parameter switch E is at 1) O O O --
B channel: receive I frame (B blinks at this time if bit 1 of
G4 parameter switch E is at 1) B --
OOO--
Note:
At the start and end of communication, both A and B will blink.
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