Copyright IXXAT Automation GmbH
CAN Repeater - Manual, Version 3.6
1
CAN-Repeater
Manual
1. Description
The CAN-Repeater is used for electrical isolation of two segments of a CAN-
network, to increase the number of possible CAN nodes, for signal regeneration
and for setting up star or tree topologies. A special feature of the IXXAT
Repeater is an error detection mechanism with which a defective segment is
detected and shut down. The remaining network can thus continue
communicating without faults. The segment is reconnected to the network
automatically after the problem has been solved.
The automatic separation of a defective network segment is made after
reception of a permanent dominant level for more than 20 bit times. The
separated network will be reconnected after reception of a recessive bit.
2. LEDs
The status of the CAN Repeater and the CAN communication lines are indicated
by four LEDs mounted at the front of the housing.
Transmitting CAN 2 (green)
Status LEDs
Transmitting CAN 1 (green)
CAN 2 segment defect (red)
CAN 1 segment defect (red)
CAN 1
CAN 2
figure 2-1: Status LEDs of the CAN Repeater
Automation GmbH
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