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An AS9100 and ISO 9001 Certified Company

PC/104 Compliant CAN Bus Hub

Operating Temperature -40° to +85°C

Block Diagram (click to view larger)
Application Example #1
(click to view larger)
Application Example #2
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Key Features

  • PC/104 compliant size
  • 4 Fiber-optic CAN ports
    • 1 Mb/s datarate up to 45 meters
  • 2 Isolated twisted pair CAN port, ISO11898 compliant
  • Supports all CAN protocol features
  • Cascadable with isolated twisted pair wire interface
  • Onboard 8-36V DC input range isolated power supply
  • Onboard bus termination jumpers and resistors
  • CAN bus filter for low EMI
  • Power out: +5V and +5V isolated
  • RTD ECAN527HR-2 CAN bus board compatible fiber interfaces
  • Available in stackable, rugged enclosures


The RTD CAN Spider active CAN hub is designed for connection to four fiber-optic CAN bus boards or modules, thus forming a star type fiber-optic CAN system. This network topology is expandable to multiple spider boards through the onboard galvanically isolated twisted pair CAN port. Multiple CAN spiders can also be stacked together, or distributed in a bus structure.

Sensors with a twisted pair CAN interface can be connected to the ISO11898 compliant galvanically isolated twisted pair CAN port of the RTD CAN Spider. This scheme allows flexible combination of twisted pair and fiber-optic CAN node connections. The CAN Spider can be mounted in a double high RTD IDAN enclosure together with either an ECAN527HR-2, ECAN527DHR or ECAN1000HR module.

The CAN Spider supports all the features of the full CAN specification 2.0 B. Data rates up to 1 Mb/s are supported with fiber-optic cable connection lengths up to 45 meters. This robust board has an industrial voltage range input power supply. The input voltage range is 8 to 36V DC. Overvoltage and reverse voltage protection ensure reliable operation in the most demanding applications.

Physical Attributes

  • Dimensions
    • Length (L): 3.775 inches (95.89 mm)
    • Width (W): 3.550 inches (90.17 mm)
    • Stand-off Height: 0.600 inches (15.24 mm)
  • Weight: Approximately 0.22 lbs. (0.10 Kg)
  • Standard Operating Temperature
    90% humidity non-condensing: -40 to +85°C
  • Storage Temperature: -55 to +125°C
  • MTBF: 10,844 hours
  • Power Requirements: 0.75 W at 5 VDC typical

Recommended Accessories

Documentation and Downloads

Ordering Information

Part Number Description Value

  Fiber-Optic CAN Bus Hub Module



RTD Embedded Technologies, Inc.
Designed and Made in the USA
sales@rtd.com   |   +1-814-234-8087