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BU-2CAN
Manual
U134.0.0
Ó2023 Cervis, Inc.

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Table of Contents
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Summary of Contents for Cervis Wireless SmaRT BU-CAN Series

  • Page 1 BU-2CAN Manual U134.0.0 Ó2023 Cervis, Inc.
  • Page 2 RoHS Compliance Statement Cervis, Inc. complies with the requirements of Restriction of Hazardous Substances (RoHS/WEEE) Specification based on in-house practice and declaration of compliance from our vendors. For additional information concerning RoHS compliance, please contact Cervis, Inc. at: CERVIS, Inc.
  • Page 3: Table Of Contents

    Table 3 Base Unit LED Troubleshooting ..................9 Table 4 BU-2CAN Base Unit Specifications ................10 Table 5 Compatible BU-2CAN External Antenna Details ............11 Table 6 Compatible BU-2CAN P1 Cable ..................11 Table 7 SmaRT BU-2CAN Base Unit Variations ................ 12 Ó2023 Cervis, Inc.
  • Page 4 SmaRT BU-2CAN Cervis, Inc. Safety Precautions Read and follow all instructions. ü ü Failure to abide by Safety Precautions may cause equipment failure, loss of authority to operate the equipment, and personal injury. ü Use and maintain proper wiring. Follow equipment manufacturer instructions.
  • Page 5 Line of Sight (aka Direct-Line-of-Sight) Type of communication between transceivers, or a transmitter and a receiver, where the pathway between the two units must be clear of obstacles. TX/RX Transmit/Receive CAN TX/RX Transmit/Receive over Control Area Network (CAN Bus). Ó2023 Cervis, Inc.
  • Page 7: Smart Bu-2Can Base Unit

    BU-2CAN Manual 1.0 SmaRT BU-2CAN Base Unit The BU-2CAN base units are the machine mounted units of a SmaRT Remote Control System. A basic SmaRT control system consists of at least one Smart wireless remote portable unit (aka handheld), a base unit, and the wiring harness that connects the base unit to the controlled apparatus.
  • Page 8: Bu-2Can Base Unit

    SmaRT BU-2CAN 2.0 BU-2CAN Base Unit The SmaRT BU-2CAN base unit features two CAN serial ports and one RS-232 serial port. It accepts an input power operating voltage range from +9 to +36 VDC. The base unit provides a robust link with a handheld remote in congested radio environments using Channel-Hopping Direct Sequence Spread Spectrum (DSSS) wireless technology broadcasting 900 MHz @ 100 mW and 2.4 GHz @ 100 mW.
  • Page 9: Base Unit Installation

    Disable the machine on which the base unit is to be attached before installation. Use the configuration diagrams supplied by Cervis, Inc. to guide you in mounting the base unit and connecting your wiring harness. Base unit mounting is left much to your discretion with the following guidelines: •...
  • Page 10: Base Unit Power

    Figure 5. Extensions and extension kits are available. For optimal performance, use the antenna supplied by Cervis, Inc. Be aware that there is an antenna specifically designed for the frequency range your base unit is designed to work on, either 900MHz or 2.4GHz.
  • Page 11: Figure 5 Bu-2Can With External Antenna And Extension Cable

    BU-2CAN Manual 2.4 GHz (or 900 MHz) Antenna Connector Antenna Extension Cable Figure 5 BU-2CAN with External Antenna and Extension Cable Ó2023 Cervis, Inc.
  • Page 12: Base Unit Cable And Field Wiring

    SmaRT BU-2CAN 2.4 Base Unit Cable and Field Wiring ü Note: Harness cable wires are individually marked on each wire’s insulator. Connect negative VDC (–VDC) directly to the power supply negative terminal. Do not use “frame ground” to power the base unit or as the common connection (or “return path”) for output loads.
  • Page 13: Bu-2Can Operation

    P1 or remove the power source from the harness connections. • Make sure that each CAN bus network is properly terminated. ü Note: BU-2CAN units are internally terminated at 120 .. Termination can be removed at the factory. Ó2023 Cervis, Inc.
  • Page 14: Bu-2Can Led Configuration

    SmaRT BU-2CAN BU-2CAN LED Configuration Table 2 BU-2CAN LED Description BU LED Description Activity LED Indication Solid Red No Power to Radio Module No Power to CAN Port 1 Solid Green No Power to Microcontroller No Power to CAN Port 2 Solid Amber Normal Power to All Circuits Flashing Red...
  • Page 15: Table 3 Base Unit Led Troubleshooting

    Power LED not Is input power Check input power polarity. active present? Power LED Red or Indicates an internal Contact Cervis, Inc. service department. Green component failure. ü Is the system using CAN? ü Is the CAN termination set properly? CAN RX/TX not ü...
  • Page 16: Bu-2Can Base Unit Specifications

    SmaRT BU-2CAN 4.0 BU-2CAN Base Unit Specifications Table 4 BU-2CAN Base Unit Specifications Item Description Power +9 to +36 VDC Operating Power 1 W nominal Environment Operating Temp –40° C to 70° C (–40° F to 158° F) Storage Temp –40°...
  • Page 17: Bu-2Can Antenna And Cable List

    10 ft. antenna cable (J5-02) and external antenna (BB3-06) EXT-10-900 3 ft. antenna cable (J5-07) and external antenna (BB3-06) EXT-3-900 ü Note: Only use the antenna recommended by Cervis, Inc. with the SmaRT base unit. Table 6 Compatible BU-2CAN P1 Cable Item Part # Wiring Harness...
  • Page 18: Smart Bu-2Can Base Unit Variations

    SmaRT BU-2CAN 6.0 SmaRT BU-2CAN Base Unit Variations Table 7 SmaRT BU-2CAN Base Unit Variations Input Operating Antenna RS-232 Model Outputs Power Frequency Power Ports Type Port BU-2CAN-2H-INT 9-36 VDC 2.4 GHz 100 mW Internal None 20101501 BU-2CAN-2H-EXT 9-36 VDC 2.4 GHz 100 mW External...
  • Page 19: Appendix A: Exposure To Radio Frequency Energy

    ü Note: Individual agency labels may differ, but SmaRT base unit models use the illustrated label position for all base unit agency labels. Figure 7 Agency Identification Label Locations Ó2023 Cervis, Inc.
  • Page 20: Appendix C: Typical Handheld To Base Unit Communication

    When ordered as a system, handheld remote and base unit communications are established at Cervis, Inc. before shipping. However, if it is necessary to establish or re-establish communication between a remote and a base unit at some point then the Associate procedure is used to do this.
  • Page 21 BU-2CAN Manual Ó2023 Cervis, Inc.

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