
Commissioning
Initial switch−on
l
38
EDSMF2181IB EN 3.0
6.4
Initial switch−on
Signalling
2181FEW001H
Fig. 6−1
Signalling on the front of the communication module
Pos.
Colour
State
Description
0
(M)
yellow
on
The ModemCAN 2181 is ready for operation.
blinking
Active communication over the telephone network
1
(E)
red
on
l
Operation via the diagnostic interface:
No device is connected to the diagnostic interface.
see
^
l
Operation via CAN:
ERR LED
2
(R)
green
on
l
Operation via the diagnostic interface:
A device is connected to the diagnostic interface.
see
^
l
Operation via CAN:
RUN−LED
3
(P)
green
on
The ModemCAN 2181 is supplied with voltage.