Description

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

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
• 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)