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Kvaser Leaf User Manual

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Copyright 2011-2025 Kvaser AB, Mölndal, Sweden
https://www.kvaser.com
Printed Wednesday 21
We believe that the information contained herein was accurate in all respects at the time of printing.
Kvaser AB cannot, however, assume any responsibility for errors or omissions in this text. Also note
that the information in this document is subject to change without notice and should not be construed
as a commitment by Kvaser AB.
Kvaser Leaf User Guide
st
May, 2025

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Summary of Contents for Kvaser Leaf

  • Page 1 We believe that the information contained herein was accurate in all respects at the time of printing. Kvaser AB cannot, however, assume any responsibility for errors or omissions in this text. Also note that the information in this document is subject to change without notice and should not be construed...
  • Page 2 Kvaser Leaf User Guide 2 (66) (This page is intentionally left blank.) Kvaser AB, Mölndal, Sweden — www.kvaser.com...

  • Page 3: Table Of Contents

    1.2 Difference between USB standards ....2 General for all Kvaser Leaf products 2.1 Introduction .......
  • Page 4 13.4 About this manual ......13.5 Patents, copyrights, and trademarks ....14 Document revision history Kvaser AB, Mölndal, Sweden — www.kvaser.com...

  • Page 5: Introduction

    Usually, a computer has a USB controller with one root hub in a computer. If you use that one, you do not need an external USB hub to get your Kvaser Leafs synchronized. The easiest way to verify the setup is to check Synchronized Hardware under Tools in Kvaser Device Guide, then select the new item in the hardware tree called Syncronized Hardware.
  • Page 6 Kvaser Leaf User Guide 6 (66) Figure 1: Kvaser Leaf syncronization. All devices are synchronized in this setup. Figure 2: Kvaser Leaf syncronization. The devices are not synchronized in this setup. Kvaser AB, Mölndal, Sweden — www.kvaser.com...

  • Page 7: Difference Between Usb Standards

    USB provides full-speed at 12 Mbit/s and high-speed at 480 Mbit/s. USB 2.0 is backwards compatible with 1.X. Kvaser Leafs will work on your computer with all standards, but if you do not have USB 2.0, the Kvaser Leafs will use full-speed at max. 12 Mbit/s.

  • Page 8: General For All Kvaser Leaf Products

    USBcan, USBcan II, etc.) 2.2 Identification When a Kvaser Leaf is inserted, its index is written to the registry. The next time a Kvaser Leaf of the same type is plugged into the same port, the index is reused if possible, or else the first available "slot"...
  • Page 9 Kvaser Leaf User Guide 9 (66) Figure 3: Locate Hardware Kvaser AB, Mölndal, Sweden — www.kvaser.com...

  • Page 10: Power

    firmware revision, EAN number etc; see Figure 4 on Page 10. Figure 4: Channel information For more information and help on using Kvaser Device Guide, press F1 from within the program. 2.3 Power All Kvaser Leaf devices are powered through the USB connector. The host must supply 5 V DC, as per the USB specification.

  • Page 11: Leds

    2.5 USB connector The Kvaser Leaf device may be connected to any free USB socket on the host computer. Power does not have to be turned off before inserting or removing the device. It is good practice, though, to exit all applications using the CAN hardware before removing a Kvaser Leaf device.

  • Page 12: D-Sub Connector

    (pin 3). When the Kvaser Leaf is configured to "high speed" mode by software, this switch closes. To acquire the needed pull-down resistor, the user needs only connect pin 4 to pin 7; see Figure 8 on Page 13.
  • Page 13 2.6.2 Reference Power (pin 9) This pin is used only to power the transceiver and as voltage reference. The Kvaser Leaf itself is powered through the USB connector and does not draw any current from this pin. Kvaser Leaf HS: This pin is not connected.
  • Page 14 . This value is chosen as to load the system as little as possible. You will probably need to add extra pull-up and pull-down resistors to the CAN bus unless the system you connect the Kvaser Leaf to already has a proper resistor configuration.

  • Page 15: Obdii Connector

    180 from CAN_H to ground is required. The Kvaser Leaf hardware supports high-speed as a master and has an internal Ω which is automatically switched in when required, as seen in Figure 8 on Page 13.
  • Page 16 Kvaser Leaf User Guide 16 (66) Figure 11: J1939-13 Connector pins J1939-13 Pin Kvaser Leaf Leaf Light with J1939-13 connector Not connected CAN_HI CAN_LOW SHIELD Not connected Table 5: J1939-13 pin configuration Kvaser AB, Mölndal, Sweden — www.kvaser.com...

  • Page 17: Technical Data

    Table 6: Technical data for all Kvaser Leafs 3 Kvaser Leaf Light HS 3.1 Introduction Kvaser Leaf Light is a reliable low cost product. With a time stamp precision of 100 µs it handles transmission and reception of standard and extended CAN messages on the bus.

  • Page 18: Leds

    Table 7: Kvaser Leaf Light LED configuration 3.3 Technical data Technical data exclusive to Kvaser Leaf Light HS are listed in Table 8 on Page 19: Technical data for Kvaser Leaf Light HS. For common technical data for all Kvaser Leaf Leaf products, see Table 6 on Page 17: Technical data for all Kvaser Leafs.
  • Page 19 OBDII Connector Optional J1939-13 Connector Optional Galvanic isolation Optional Table 8: Technical data for Kvaser Leaf Light HS With Kvaser Leaf Light OBDII With Kvaser Leaf Light J1939-13 With Kvaser Leaf Light Galvanic Isolation Kvaser AB, Mölndal, Sweden — www.kvaser.com...

  • Page 20: Kvaser Leaf Light Rugged

    Technical data exclusive to Kvaser Leaf Light Rugged HS are listed in Table 10 on Page 21: Specifications for data for Kvaser Leaf rugged. For common technical data for all Kvaser Leaf Leaf products, see Table 6 on Page 17: Technical data for all Kvaser Leafs.
  • Page 21 Temperature range -40 to +85 Max message rate 8000 Messages/s USB speed Mbit/s Clock accuracy µs bits Time stamp Galvanic isolation Polyurethane cabling IP Rating IP 67 Table 10: Specifications for Kvaser Leaf Light Rugged Kvaser AB, Mölndal, Sweden — www.kvaser.com...

  • Page 22: Kvaser Leaf Semipro Ls/Hs/Swc

    5.3 Technical Data Technical data exclusive to Kvaser Leaf SemiPro LS/HS/SWC are listed in Table 14 on Page 25. For common technical data for all Kvaser Leaf Leaf products, see Table 6 on Page 17: Technical data for all Kvaser Leafs.
  • Page 23 12 & 480 12 & 480 Mbit/s µs Clock accuracy Time stamp bits Galvanic isolation Clock sync of multiple devices Error frame generation Silent mode Polyurethane cabling Table 12: Technical data for Kvaser Leaf SemiPro LS/HS/SWC Kvaser AB, Mölndal, Sweden — www.kvaser.com...

  • Page 24: Kvaser Leaf Semipro Rugged

    6.3 Technical Data Technical data exclusive to Kvaser Leaf SemiPro Rugged are listed in Table 14 on Page 25. For common technical data for all Kvaser Leaf Leaf products, see Table 6 on Page 17: Technical data for all Kvaser Leafs.
  • Page 25 Mbit/s Clock accuracy µs Bits Time stamp Galvanic isolation Clock sync of multiple devices Error frame generation Silent mode Polyurethane cabling IP Rating IP 67 Table 14: Technical data for Kvaser Leaf SemiPro LS/HS/SWC Kvaser AB, Mölndal, Sweden — www.kvaser.com...

  • Page 26: Kvaser Leaf Professional Ls/Hs/Swc/Lin

    Technical data exclusive to Kvaser Leaf Professional LS/HS/SWC are listed in Table 16 on Page 27 and to Kvaser Leaf Professional LIN in Table 17 on Page 28. For common technical data for all Kvaser Leaf Leaf products, see Table 6 on Page 17: Technical data for all Kvaser Leafs.
  • Page 27 Error frame generation Sound indicator Silent mode Auto transmit buffers Auto receive buffers Polyurethane cabling OBDII Connector Optional Table 16: Technical data for Kvaser Leaf Professional LS/HS/SWC With Kvaser Leaf Professional HS with OBDII connector Kvaser AB, Mölndal, Sweden — www.kvaser.com...
  • Page 28 Clock sync of multiple devices Professional LS/HS/SWC Galvanic isolation Sound indicator Normal/Sleep Mode Monitor Mode Master/Slave Mode Auto transmit buffers Auto receive buffers Polyurethane cabling Table 17: Technical data for Kvaser Leaf Professional LIN Kvaser AB, Mölndal, Sweden — www.kvaser.com...

  • Page 29: Kvaser Leaf Professional Rugged

    Technical data exclusive to Kvaser Leaf Professional Rugged HS are listed in Table 19 on Page 30: Specifications for Kvaser Leaf Professional Rugged. For common technical data for all Kvaser Leaf Leaf products, see Table 6 on Page 17: Technical data for all Kvaser Leafs.
  • Page 30 Clock sync of multiple devices Galvanic isolation Error frame generation Sound indicator Silent mode Auto transmit buffers Auto receive buffers Polyurethane cabling IP Rating IP 67 Table 19: Specifications for Kvaser Leaf Professional Rugged Kvaser AB, Mölndal, Sweden — www.kvaser.com...

  • Page 31: Frequently Asked Questions

    No, you don’t. See Section 1.1, Kvaser MagiSync , on Page 5. As far as I remember pin 7 was not connected on the Kvaser DRVcan LIN so I can connect pin 7 and pin 4 on my LIN bus in order to work with both kinds of cables.

  • Page 32: Support And Software Updates

    10.2 Firmware Updates Firmware updates and upgrade instructions can be found at www.kvaser.com/download Use “Kvaser Device Guide” to see the present firmware version of your Kvaser Leaf. 10.3 Driver Updates Driver updates and upgrade instructions can be found at www.kvaser.com/download...

  • Page 33: Safety Instructions

    11 Safety Instructions 11.1 Intended Use Kvaser interfaces are used to connect computer systems to CAN buses. The Kvaser Leaf is intended for connection to a computer via the USB port. 11.2 Usage Warning WARNING FOR ALL USERS WARNING! - YOUR USE OF THIS DEVICE MUST BE DONE WITH CAUTION AND A FULL...

  • Page 34: Disposal And Recycling Information

    13 Legal information 13.1 Electromagnetic compability All Kvaser Leafs are CE-marked and tested according to the appropriate standards. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

  • Page 35: Eu Regulatory Compliance

    DoC is issued under our sole responsibility and belongs to the following product: Kvaser Leaf Light HS Product: Object of the declaration (identification of apparatus allowing traceability): Product: Kvaser Leaf Light HS Type: 73-30130-00241-8 The object of the declaration described above is in conformity with the relevant Union harmonisation legislation:...
  • Page 36 DoC is issued under our sole responsibility and belongs to the following product: Kvaser Leaf Semipro HS Product: Object of the declaration (identification of apparatus allowing traceability): Product: Kvaser Leaf Semipro HS Type: 73-30130-00242-5 The object of the declaration described above is in conformity with the relevant Union harmonisation legislation:...
  • Page 37 DoC is issued under our sole responsibility and belongs to the following product: Kvaser Leaf Professional HS Product: Object of the declaration (identification of apparatus allowing traceability): Product: Kvaser Leaf Professional HS Type: 73-30130-00243-2 The object of the declaration described above is in conformity with the relevant Union harmonisation legislation:...
  • Page 38 DoC is issued under our sole responsibility and belongs to the following product: Kvaser Leaf Semipro LS Product: Object of the declaration (identification of apparatus allowing traceability): Product: Kvaser Leaf Semipro LS Type: 73-30130-00260-9 The object of the declaration described above is in conformity with the relevant Union harmonisation legislation:...
  • Page 39 DoC is issued under our sole responsibility and belongs to the following product: Kvaser Leaf Professional LS Product: Object of the declaration (identification of apparatus allowing traceability): Product: Kvaser Leaf Professional LS Type: 73-30130-00261-6 The object of the declaration described above is in conformity with the relevant Union harmonisation legislation:...
  • Page 40 DoC is issued under our sole responsibility and belongs to the following product: Kvaser Leaf Semipro SWC Product: Object of the declaration (identification of apparatus allowing traceability): Product: Kvaser Leaf Semipro SWC Type: 73-30130-00263-0 The object of the declaration described above is in conformity with the relevant Union harmonisation legislation:...
  • Page 41 DoC is issued under our sole responsibility and belongs to the following product: Kvaser Leaf Professional SWC Product: Object of the declaration (identification of apparatus allowing traceability): Product: Kvaser Leaf Professional SWC Type: 73-30130-00264-7 The object of the declaration described above is in conformity with the relevant Union harmonisation legislation:...
  • Page 42 DoC is issued under our sole responsibility and belongs to the following product: Kvaser Leaf Professional LIN Product: Object of the declaration (identification of apparatus allowing traceability): Product: Kvaser Leaf Professional LIN Type: 73-30130-00269-2 The object of the declaration described above is in conformity with the relevant Union harmonisation legislation:...
  • Page 43 DoC is issued under our sole responsibility and belongs to the following product: Kvaser Leaf Light HS OBDII Product: Object of the declaration (identification of apparatus allowing traceability): Product: Kvaser Leaf Light HS OBDII Type: 73-30130-00402-3 The object of the declaration described above is in conformity with the relevant Union harmonisation legislation:...
  • Page 44 DoC is issued under our sole responsibility and belongs to the following product: Kvaser Leaf Professional HS OBDII Product: Object of the declaration (identification of apparatus allowing traceability): Product: Kvaser Leaf Professional HS OBDII Type: 73-30130-00404-7 The object of the declaration described above is in conformity with the relevant Union harmonisation legislation:...
  • Page 45 DoC is issued under our sole responsibility and belongs to the following product: Kvaser Leaf Light GI HS Product: Object of the declaration (identification of apparatus allowing traceability): Product: Kvaser Leaf Light GI HS Type: 73-30130-00411-5 The object of the declaration described above is in conformity with the relevant Union harmonisation legislation:...
  • Page 46 DoC is issued under our sole responsibility and belongs to the following product: Kvaser Leaf Light Rugged HS Product: Object of the declaration (identification of apparatus allowing traceability): Product: Kvaser Leaf Light Rugged HS Type: 73-30130-00427-6 The object of the declaration described above is in conformity with the relevant Union harmonisation legislation:...
  • Page 47 DoC is issued under our sole responsibility and belongs to the following product: Kvaser Leaf SemiPro Rugged Product: Object of the declaration (identification of apparatus allowing traceability): Product: Kvaser Leaf SemiPro Rugged Type: 73-30130-00506-8 The object of the declaration described above is in conformity with the relevant Union harmonisation legislation:...
  • Page 48 DoC is issued under our sole responsibility and belongs to the following product: Kvaser Leaf Professional Rugged HS Product: Object of the declaration (identification of apparatus allowing traceability): Product: Kvaser Leaf Professional Rugged HS Type: 73-30130-00509-9 The object of the declaration described above is in conformity with the relevant Union harmonisation legislation:...
  • Page 49 DoC is issued under our sole responsibility and belongs to the following product: Kvaser Leaf Light J1939-13 Product: Object of the declaration (identification of apparatus allowing traceability): Product: Kvaser Leaf Light J1939-13 Type: 73-30130-00642-3 The object of the declaration described above is in conformity with the relevant Union harmonisation legislation:...

  • Page 50: Fcc Regulatory Compliance

    50 (66) 13.3 FCC Regulatory Compliance Federal Communications Commission (FCC) Compliance Information Statement IDENTIFICATION OBJECT: Product: Kvaser Leaf Light HS Type: 73-30130-00241-8 APPLICABLE COMPLIANCE STATEMENTS: CFR Title 47 Part 15 15.107, 15.109 This device complies with part 15 of the FCC Rules.
  • Page 51 Kvaser Leaf User Guide 51 (66) Federal Communications Commission (FCC) Compliance Information Statement IDENTIFICATION OBJECT: Product: Kvaser Leaf Semipro HS Type: 73-30130-00242-5 APPLICABLE COMPLIANCE STATEMENTS: CFR Title 47 Part 15 15.107, 15.109 This device complies with part 15 of the FCC Rules.
  • Page 52 Kvaser Leaf User Guide 52 (66) Federal Communications Commission (FCC) Compliance Information Statement IDENTIFICATION OBJECT: Product: Kvaser Leaf Professional HS Type: 73-30130-00243-2 APPLICABLE COMPLIANCE STATEMENTS: CFR Title 47 Part 15 15.107, 15.109 This device complies with part 15 of the FCC Rules.
  • Page 53 Kvaser Leaf User Guide 53 (66) Federal Communications Commission (FCC) Compliance Information Statement IDENTIFICATION OBJECT: Product: Kvaser Leaf Semipro LS Type: 73-30130-00260-9 APPLICABLE COMPLIANCE STATEMENTS: CFR Title 47 Part 15 15.107, 15.109 This device complies with part 15 of the FCC Rules.
  • Page 54 Kvaser Leaf User Guide 54 (66) Federal Communications Commission (FCC) Compliance Information Statement IDENTIFICATION OBJECT: Product: Kvaser Leaf Professional LS Type: 73-30130-00261-6 APPLICABLE COMPLIANCE STATEMENTS: CFR Title 47 Part 15 15.107, 15.109 This device complies with part 15 of the FCC Rules.
  • Page 55 Kvaser Leaf User Guide 55 (66) Federal Communications Commission (FCC) Compliance Information Statement IDENTIFICATION OBJECT: Product: Kvaser Leaf Semipro SWC Type: 73-30130-00263-0 APPLICABLE COMPLIANCE STATEMENTS: CFR Title 47 Part 15 15.107, 15.109 This device complies with part 15 of the FCC Rules.
  • Page 56 Kvaser Leaf User Guide 56 (66) Federal Communications Commission (FCC) Compliance Information Statement IDENTIFICATION OBJECT: Product: Kvaser Leaf Professional SWC Type: 73-30130-00264-7 APPLICABLE COMPLIANCE STATEMENTS: CFR Title 47 Part 15 15.107, 15.109 This device complies with part 15 of the FCC Rules.
  • Page 57 Kvaser Leaf User Guide 57 (66) Federal Communications Commission (FCC) Compliance Information Statement IDENTIFICATION OBJECT: Product: Kvaser Leaf Professional LIN Type: 73-30130-00269-2 APPLICABLE COMPLIANCE STATEMENTS: CFR Title 47 Part 15 15.107, 15.109 This device complies with part 15 of the FCC Rules.
  • Page 58 Kvaser Leaf User Guide 58 (66) Federal Communications Commission (FCC) Compliance Information Statement IDENTIFICATION OBJECT: Product: Kvaser Leaf Light HS OBDII Type: 73-30130-00402-3 APPLICABLE COMPLIANCE STATEMENTS: CFR Title 47 Part 15 15.107, 15.109 This device complies with part 15 of the FCC Rules.
  • Page 59 Kvaser Leaf User Guide 59 (66) Federal Communications Commission (FCC) Compliance Information Statement IDENTIFICATION OBJECT: Product: Kvaser Leaf Professional HS OBDII Type: 73-30130-00404-7 APPLICABLE COMPLIANCE STATEMENTS: CFR Title 47 Part 15 15.107, 15.109 This device complies with part 15 of the FCC Rules.
  • Page 60 Kvaser Leaf User Guide 60 (66) Federal Communications Commission (FCC) Compliance Information Statement IDENTIFICATION OBJECT: Product: Kvaser Leaf Light GI HS Type: 73-30130-00411-5 APPLICABLE COMPLIANCE STATEMENTS: CFR Title 47 Part 15 15.107, 15.109 This device complies with part 15 of the FCC Rules.
  • Page 61 Kvaser Leaf User Guide 61 (66) Federal Communications Commission (FCC) Compliance Information Statement IDENTIFICATION OBJECT: Product: Kvaser Leaf Light Rugged HS Type: 73-30130-00427-6 APPLICABLE COMPLIANCE STATEMENTS: CFR Title 47 Part 15 15.107, 15.109 This device complies with part 15 of the FCC Rules.
  • Page 62 Kvaser Leaf User Guide 62 (66) Federal Communications Commission (FCC) Compliance Information Statement IDENTIFICATION OBJECT: Product: Kvaser Leaf SemiPro Rugged Type: 73-30130-00506-8 APPLICABLE COMPLIANCE STATEMENTS: CFR Title 47 Part 15 15.107, 15.109 This device complies with part 15 of the FCC Rules.
  • Page 63 Kvaser Leaf User Guide 63 (66) Federal Communications Commission (FCC) Compliance Information Statement IDENTIFICATION OBJECT: Product: Kvaser Leaf Professional Rugged HS Type: 73-30130-00509-9 APPLICABLE COMPLIANCE STATEMENTS: CFR Title 47 Part 15 15.107, 15.109 This device complies with part 15 of the FCC Rules.
  • Page 64 Kvaser Leaf User Guide 64 (66) Federal Communications Commission (FCC) Compliance Information Statement IDENTIFICATION OBJECT: Product: Kvaser Leaf Light J1939-13 Type: 73-30130-00642-3 APPLICABLE COMPLIANCE STATEMENTS: CFR Title 47 Part 15 15.107, 15.109 This device complies with part 15 of the FCC Rules.

  • Page 65: About This Manual

    We believe that the information contained herein was accurate in all respects at the time of printing. Kvaser AB cannot, however, assume any responsibility for errors or omissions in this text. Please also note that the information in this document is subject to change without notice and should not be construed as a commitment on the part of Kvaser AB.

  • Page 66: Document Revision History

    – this information is better obtained from our web site. 2011-01-21 Updated dimensions for Kvaser Leaf Light Rugged, updated temperature range for Kvaser Leaf Light HS, updated product images, and removed transceiver types from technical data tables. Other minor editorial changes.

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