Canbus Interface B2S Manual
Purpose of this document
This document is applicable for the B2S-1, B2S-2 and B2S-4, hereinafter referred to as the B2S. The purpose of this document is to provide the user with all necessary information so that he can install and operate the B2S. For information about connections in the vehicle itself, please refer to section below entitled ‘Connections in the vehicle’.
Important instructions/rules
- Read the entire instruction leaflet before proceeding with the installation of the B2S!
- The B2S may only be installed by trained specialists!
- Observe all modern quality requirements relating to the automotive industry!
- You must observe all instructions issued by the manufacturer of the vehicle in which you are installing the B2S!
- You must observe the prevailing norms and regulations in the relevant country regarding subsequent installation in a vehicle!
- The B2S must be installed in a dry location!
- The B2S complies with all requirements in accordance. With: Commission Directive 2004/104/EC for (motor) vehicles and electrical/electronic components (ESA) intended for installation on a vehicle!
- The enclosed ‘Application list’ specifies the available signals for each type of vehicle and is only applicable to the accompanying B2S. This list only applies to vehicles intended for the European market.
Function
The B2S is an automotive interface developed in order to easily connect electronic systems to the CAN network of a vehicle (CAN, Highspeed, Lowspeed, single wire CAN). It is universal and suitable for practically all vehicles equipped with a multiplex network. It is also possible to customprogram the interface with various signals for special applications. The B2S automatically recognises the vehicle in which it has been installed and then converts the CAN data into usable signals.
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Specifications Protection level: IP40 Supply: 8Vdc to 14Vdc Maximum current consumption (unloaded): Normal mode: <160mA ~12V Sleep mode: <1mA ~ 12V CAN Highspeed and/or CAN Lowspeed Networks |
| Digital outputs | Voltage range: VSupply (from 8V to 14V) |
| Max. current: 500mA per output Thermal protection. |
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| Frequency outputs | 10V with Pull Down to ground |
| Voltage range: VSupply-2V when 8V < VSupply < 11V and 10V when VSupply > 11V Max. current: 300mA per 2 outputs at 12V, |
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| Temperature | Storage temperature: -40 °C / +85 °C |
| Operation temperature: -40 °C / +85 °C European certification: e4 03 1659 Patent N 1024730 |
Before you start
- Disconnect the vehicle’s battery in accordance with the vehicle manufacturer’s instructions!
- Always make solder connections using a gas soldering iron!
- Never cut CAN wires in the vehicle!
- The B2S must always be connected to a constant power supply.
- Ensure the B2S power supply is fused (5A-15A)
- The CAN wires of the B2S may not be lengthened!
- Insulate unused wires!
Installation (in 3 phases)
Disconnect the vehicle’s battery in accordance with the vehicle manufacturer’s instructions!
Phase 1. Preparation
(only B2S-4:)
1a. Determine the type of CAN bus: Highspeed or Lowspeed.
The B2S-4 is suitable for a Highspeed as well as a Lowspeed CAN bus. Use the black/red and black/white wire of the wire harness for Highspeed, and use the black/yellow and black/green wire for Lowspeed.
(all types of B2S:)
1b. Determine the best location of the relevant CAN bus in the vehicle. Take note: a similar wire colour does not imply that the correct CAN bus has been found with all necessary data for the relevant signals.
1c. Find a suitable CONSTANT power supply and a good ground terminal. The red and brown wires of the wire harness must have a constant power supply (+30) and be connected to a proper ground terminal (-31) respectively. Find a suitable location, close to the detected CAN connection points.
N.B.
fuse the constant power supply (between 5A and 15A, depending on the specifications/power consumption of the system being installed), near the battery or another connection point (max 30 cm)!
Phase 2. Connection
Create the relevant connections in the vehicle (four in total).
Now that the locations have been determined, the four wires of the wire harness can be connected to the vehicle:
CAN High and CAN Low to the CAN bus, brown to the ground terminal and red to the constant power supply (+30).Take note: the CAN wires of the B2S may not be lengthened! Wait until the inspection phase has been carried out before closing everything. Reconnect the battery in accordance with the vehicle manufacturer’s
instructions.
Phase 3. Inspection
Check whether the B2S is functioning properly (using LED)
As soon as the B2S has been connected, the green LED will start flashing. Now switch on the ignition to ensure there is CAN activity on the connected CAN Bus. As soon as the B2S has recognised the vehicle (the first time this is done may take a maximum of 2 minutes), the LED will light up permanently and the B2S will be operational. If the ignition is switched off now, the LED will eventually go out and the B2S will enter sleep mode (with some delay depending on the type of vehicle).
