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CAN repeater example
CAN repeater networks
CAN Gateway vs. Repeater
|for xx/.. values see |
inhibition time explanation
Repeater CRep DS 102
- Short propagation delay
- Small and robust construction, completely enclosed into epoxy resin
- Screw mounting or installation in cable channel
The compact CAN repeater CRep transmits and amplifies CAN signals in a protocol transparent way. Both CAN connections behave like one single physical CAN node. CRep allows the design of flexible wiring topologies. Star and tree structures as well as stub lines can be realized. By selection of the most favourable network topology for the application needs the installation costs can be lowered. The maximum data rate can be increased by use of CRep and a suitable network structure. An increase of the number of nodes in a CAN network is possible through separation into sub networks, each of them connected by CRep. Each sub network can manage a maximum number of CAN nodes only restricted by the transceiver driver capabilities. With transmission over long distances CRep allows signal recovering.
Layout and Connection
CRep DS 102 devices include 2 CAN segments fed to a male and a female plug of type D- Sub 9. The following table shows the internal connections:
|Voltage on the bus connections||-30||+30||V|
|Current over ground (Pins 3, 6)||-2||+2||A|
|Current over signal lines (Pins 1, 4, 5, 8)||-500||+500||mA|
|Admissible power consumption (at 60°C)||n.s.||1000||mW|
Any (also temporary) stress in excess of the limiting values may cause permanent damage on CRep and other connected devices. Exposure to limiting conditions for extended periods may affect the reliability and shorten the life cycle of the device.
|Current consumption (running idle)||n.s.||68||n.s.||mA|
|Current consumption (250 kBits/s, 100% Buslast)||n.s.||98||n.s.||mA|
All values, unless otherwise specified, refer to a supply voltage of 12V and an environmental temperature of 20°C.