(under construction)

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 repeater up to 1Mbps
• 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
• 120Ω current-limited switchable termination on both segments
• Optional ~600Ω terminations to enforce valid bus signals if segment disconnected
• Bus powered 12-48VDC, power <1W
• Allowed isolation voltage up to 500Vrms
• 6-Pin spring-contact terminations 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 1.2kVdc/6.5kA varistor
• Conformally coated circuit board 67mm × 64mm, 4mm oblong mounting holes pitch 56-60mm
• Available with various enclosures; polycarbonate, aluminium or antistatic polyester
• ATEX intrinsic safety 'ic' (IEC 60079-11) and increased safety 'nA' (IEC 60079-15)