Description

This device provides an isolated repeater function between two CAN-bus segments. The primary segment also provides power for the device.

Both segments are rated for 6kV surge energy, which makes them very suitable to be connected to outdoor networks.

Functionality

• Two-way CAN-bus & CAN-FD repeater up to 8Mbps
• Protocol independent; works with any CAN-based protocol including CANopen and J1939
• Powered from primary side DC input
• Secondary side powered by integrated DC/DC converter
• Switchable termination resistors

Specifications

• Propagation delay 100ns, equivalent to ~20m of cable length
• Automatic disable of errorneous segments (non-terminated or stuck dominant)
• 120Ω current-limited switchable termination on both segments
• One of the segments can be switched to silent mode
• Bus powered 12-48VDC, power <1W
• Allowed isolation voltage up to 500VRMS
• 6-Pin 3.81mm pluggable screw terminals for CAN-bus, ground, power, shield and earth
• Grounds and shields individually terminated to earth via 1nF Y1 capacitors
• 6kV Surge rated; 1.2/50µs 2Ω on DC-input and across isolation, 12Ω to earth, 10/700µs 25Ω on CAN-bus
• Voltage across isolation barrier clamped with 550VDC/6.5kA varistor
• Conformal coated circuit board 66mm × 60mm, 4mm oblong mounting holes pitch 56-60mm, suitable for M4 and #8 screws
• Available with various enclosures; antistatic glass-reinforced polyester (GRP) 80×75×55mm, polycarbonate, ABS or aluminium
• ATEX increased safety 'ec' (IEC 60079-7), dust ignition protection 'tc' (IEC 60079-31)
• Customisable with industrial (M12) connections or cable assemblies

Low-cost version

• Bus powered 12-36VDC, power <500mW
• IEC 61131-2 Zone B immunity (500V/42Ω surge protection)
• No termination resistors & switches
• No silent mode
• Only available as OEM version (i.e. bare board without enclosure)