Manual

Operation
11 (18)
7 Operation
7.1 LEDs
Fig. 4 LED array
LEDs PWR 2/3/4 do not have any function.
The LEDs CAN 3/4 are activated only with CAN-CR300.
7.1.1 Power LED
Power LED PWR 1 indicates the status of the power supply.
LED state
Description
Comments
Off
No power
Device not connected to power supply, or fuses of device
or internal power supply damaged
Green
Power ok Device fully functional
Red
Device is reset
After power-up the device is set into reset, LEDs are red
during reset (normal duration: about 200 ms). Or power
supply is damaged, internal voltage is below necessary
level.
7.1.2 CAN LEDs
With CAN-CR100, CAN-CR120/HV and CAN-CR110/FO the LEDs CAN 1 and 2 indicate the status of
the CAN connections.
With CAN-CR300 LEDs CAN 1, 2, 3 and 4 indicate the status of the CAN connections.
LED state
Description
Comments
Off
No CAN communication
No CAN communication, device not connected to CAN
Green or green
flashing
CAN communication
LED is triggered when a dominant bit is transmitted to the
respective CAN port.
Red flashing CAN communication, but errors Each CAN circuit transmits and reads back the transmitted
bits. An error occurs, if the repeater transmits a dominant
bit, but measures a recessive bit.
Red Dominant-lock External device applies a permanent dominant level to the
CAN.
PWR
1
2
3
CAN
4
CAN FD Repeater User Manual
4.01.0210.20000 1.4 en-US