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CAN Bus Repeater

CRep S4

The CRep S4 4-channel CAN Bus repeater transmits and amplifies CAN signals transparent to the CAN protocol. CRep S4 allows the design of flexible wiring topologies, with star and tree structures and stub lines easily realized.

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Key Product Features

  • Protocol transparent 4-channel CAN repeater
  • Low Propagation Delay
  • Shutdown of erroneous bus segments
  • Choice of Baud Rate: 10/20/50/125/250/500kBaud (selected at order time via factory set inhibit time)
  • Rail Mountable
  • FCC Class A Verified (use restricted to commercial, business, and industrial environments)

CPC-USB/ARM7 USB to CAN Bus Interface


Technical Data

Layout and Connection

The CRep S4 device includes 4 CAN segments, wired by terminal blocks with 3 clamps. The power supply of CRep S4 is separately wired by a terminal block with 2 clamps.

Pin Name Description
1 CAN_H CAN bus line circuit 1 (dominant high)
2 CAN_L CAN bus line circuit 1 (dominant low)
3 GND Ground line

The following table shows the terminal assignment of the power connector:

Pin Name Function
1 Power + Positive supply +24V
2 Power - Ground

Limiting Values

Parameter Minimal Maximal Unit
Storage temperature -40 +90 °C
Operating temperature 0 +60 °C
Supply voltage -100 +35 V
Voltage on signal lines -30 +30 V
Maximum power consumption (at 60°C) - tbd mW

Any (also temporary) stress in excess of the limiting values may cause permanent damage on CRep N and other connected devices. Exposure to limiting conditions for extended periods may affect the reliability and shorten the life cycle of the device.

Nominal Values

Parameter Minimal Typical Maximal Unit
Current consumption (running idle) - 26 - mA
Current consumption (250kBaud, 100% busload) - 65 - mA
Supply voltage 19 24 30 V
Propagation delay - 130 200 ns

All values, unless otherwise specified, refer to a supply voltage of 24V and an environmental temperature of 20°C.