Raliacom B2 Professional Installation Guide

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Maintain a Safe Work Environment

  • Only trained and qualified technicians can perform installations.
  • Use personal protective equipment if required (protective goggles, respiratory/ ear protection, and so on).
  • Ensure the workplace is dry and sufficiently lit.
  • Pedal actuation can cause injuries.
    • Switch transmission to "neutral" and engage parking brake.
    • Secure vehicle against rolling using chocks.
    • Fasten a clearly visible note to steering wheel indicating work is being performed.

Safety Guidelines

Throughout the entire connection procedure, the voltage must be turned off.

The positive voltage 12/24 VDC and the positive voltage after contact must be protected by a blade fuse of between 2A and 3A.

Use the device only for its intended purpose.

  • Do NOT open the Raliacom unit.
  • Do NOT drill into the device housing.
  • The device safety may be compromised if:
      • Device is not firmly fastened;
      • Device has suffered from transportation damages;
      • Temperature limits are exceeded;
      • Device comes into contact with water;
      • Device is visibly damaged.
  • Always follow the vehicle manufacturer's specifications and instructions.
  • Observe all respective company accident regulations, as well as all regional and national regulations.

Step 1 | Verify Components in Installation Kit



Part Number


Raliacom Harness




(Tachograph Interface Cable)



Raliacom B2

Vehicle Tracking Unit (VTU)



External Antenna Cable



CANCrocodile Contactless Reader (J1939 CANCroc)

U12 24 LO.7S


Panic / Privacy Button



Step 2 | Connect Cables / Antennas to Raliacom

  1. Locate the CN1 (16-pin) and CN2 (20-pin) cables.
  2. Connect cables into the correct connectors on the Raliacom B2 unit, as shown below.
  3. Find a suitable place for the antenna (round disk) and mount with the flat (sticky) side facing the sky and located above any metal obstructions.
  4. Locate the twin antenna wire connector ports on the back of the VTU and connect the twin antenna wires securely, as shown below.


Step 3 | Connect Harness to FMS Gateway

Vehicles FMS Enabled

Group Name

Euro Rating

Vehicle Makes

Preferred Connection

Alternative Connection



MAN,Scania,lveco, OAF

FMS Plug




Renault, Volvo





Renault, Volvo

FMS Plug




Mercedes Benz


  1. Install the Raliacom cable harness (CBH-UK-RAL-001-002-04).Harness.jpeg
  2. Plug the green FMS connector into the vehicle's standard FMS connection.

Alternate 3-Wire Install

If no power is available on the vehicle's FMS connector, connect the power signals (GND, +15 and +30) directly to the vehicle.

  1. Cut the exposed black pin 1 (ground}, green pin 10 (+15 Ignition Live) and red pin 12 (+30 Permanent Live) wires approximately halfway between the FMS plug and the fuses.
  2. Fold back the cut wires connected to the FMS plug and use insulation tape to secure them so they cannot short together or short to any other cable/wire.
  3. Splice the three extension wires onto the cut wires on the fuse side and secure the joins with insulation tape.
  4. Connect the three extended leads to the relevant power, switched power (ignition), and ground points in the vehicle and secure with insulation tape where required.
  5. Check all connections.

The 3-wire install to the FMS connector should look similar to the image below.


Consult the truck-specific installation guide for more information on direct vehicle connections (without standard FMS connector).

Step 4 | Install J1939 CANCroc (Optional)


  1. Connect the Raliacom unit to the CAN-bus by attaching the CANCroc to the CAN wires in the engine. Open the CANCroc.
  2. Connect the CANCroc device to the CAN HI and CAN LO wires of the vehicle, in accordance with the markings printed inside the CanCroc device (CAN HI is closest to the hinge and CAN LO is closest to the closure clip).
  3. Close the CanCroc. Ensure the CAN wires cannot significantly move. The CAN wires should be tightly twisted against the CANCroc.
  4. Pass a cable tie between the CAN HI and CAN LO wires and around the reader to secure the CANCroc's case.
  5. Check the CANCroc LEDs
      • Blinking green indicator I detecting signals.
      • Red indicator I power on.
  6. Plug the CANCroc plug into the 6-way white Molex connector (CC1) on the main harness

    The completed installation will be similar to the image below.


Step 5 | Install Panic / Privacy Button (Optional)

The Panic and Privacy features are together on one piece of hardware.

  1. Find a location on the dashboard that is close to the ignition switch and within cable reach of the VTU's location.
  2. Verify the desired location for the switch assembly with the customer.
  3. Verify there is sufficient space behind the location where hole is to be drilled.
  4. Drill a 12mm hole through the dashboard at the agreed upon location.
  5. Place the washer with serrated edge away from the switch assembly.
  6. Feed the cable through the hole, plug first.
  7. Secure the switch in place by tightening the fixing nut onto the threaded back of the switch.
  8. Installation of the Panic button should look similar to this image:
  9. Connect the plug on the switch assembly cable into Socket P9 labelled "PANIC".Switch_Assembly.jpeg
  10. Contact Customer to enable the Panic/Privacy feature. The Rep will send SMS signals and request that you test the features as described in the following section.

Test Panic Mode

You can enable Panic Mode at any time, including when in Privacy mode or when the ignition is off.

  • To enable Panic, press and hold the button for more than six seconds. A blinking red light appears on the button's LED.
  • To disable Panic, press and hold the button for 10 seconds. yg-font-size-small">Once you release, the LED turns off.

After one hour, Panic mode automatically cancels and the LED turns off.

Test Privacy Mode

You can enable Privacy only when the ignition switch is on.

  • To enable Privacy, press and hold the button for more than one second but less than six seconds. A steady LED "on condition" is displayed.
  • To disable Privacy mode, use one of the following methods:
  • Press and hold the button for more than one second but less than six seconds. The LED indicator turns off.
  • When you turn off the ignition, Privacy is disabled immediately.
  • When you select Panic mode, Privacy mode is immediately disabled.

Step 6 | Connect RDL

Remote Download (RDL) allows retrieval of tracking data from the tachograph. Not all tachograph models support RDL. Ensure you are connecting to a digital tachograph, and either a VDO or Stoneridge model.

Methods of Connection FMS (Preferred)

The preferred connection method is via the FMS connector. If the CID connectors are free, use the tacho cable harness (CBH-UK-RAL-001-002-04) to connect directly to the tachograph.

Connectors are Not Free with no Active Equipment

If the C/D connectors have a device plugged in but no active equipment present, follow these steps:

  • Verify there is no active equipment by measuring the voltage between the vehicle ground wire and pin 5 of the pre-existing equipment connector which is plugged in the tachograph C-connector. The voltage meter will read ±3V if there are active telematics units.
  • If no active equipment is detected, disconnect the existing connector(s). Then you are free to use the C/D connectors.
  • If you do not use the connectors, add a termination resistor to the connector(s) you unplugged. (Even if not active, there can be timeout errors if the connector is not properly terminated.)

Connectors with Active Equipment Connected

If the C/D connectors are NOT free AND connected equipment is active, use the T-connector to connect both the Raliacom and the pre-existing equipment to the C/D connector(s).

Follow these steps:

  1. Carefully pull out the tachograph, using appropriate tools.
  2. Use a cable connector such as the T-connector (or Y-connector) to tap into the C-connector at the rear of the tachograph.
  3. Connect the WHITE and GREY wires from the VTU to C-connector, pin 5 and pin 7 at the back of the tachograph, as shown in the following image.

C-Connector is Free with no RDL Signal

If the C-connector is free but not receiving RDL data, use the spare red C-connector located on the tachograph cable. With the lead connected to the tachograph, use one the following methods:

  • Install a wire link (loop) between pins 7 and 8 of the C-connector, as shown on the left.
  • Install a red female Lucas connector between pins 7 and 8 of the C plug, as shown in the image below on the right.

Configure Stoneridge Tacho for RDL

To configure the Stoneridge tachograph for data output, insert a company card (not a driver's card) into slot 1 of the tachograph. With the company card inserted, follow the instructions below.


Step 7 | Check Raliacom 82 LED Status


  • Left LED (GPS):
    • LED solid red: Good GPS fix, good satellite signal acquired.
    • LED blinking twice every second: low precision fix, signal acquired but with low precision.
    • LED off: No GPS fix, no signal from the satellites.
  • Center LED (BATTERY):
    • Orange while the internal battery is charging.
    • Green when the battery is fully charged.
  • Right LED (GSM):
    • Flashes yellow twice if the unit is communicating properly with the network.


Step 8 | Contact Customer Support

Once the installation is complete, call VZC Customer Support center to check-in.

Contact Customer Support before replacing any of the dash panels.

Required Information

Have the following information ready:

  • Name of Asset (ex. Service Truck 51) including year, make, and model, VIN#, and License plate.
  • Tacho serial number. The serial number is printed on the data label on the tacho printout.

Check-in Process

During the check-in process the Support Rep will perform several checks, including the the following:

  • Installation Type: The Rep will ask if the installation is FMS or Contactless.
  • Ignition On/Off: The Rep will ask you to cycle the ignition to verify that the unit is reporting ignition status.
  • GPS Signal: The Rep will check for a GPS signal. Be sure the vehicle is outdoors with a clear view of the sky and that the antenna connections are secure.
  • CAN-bus Speed: The Rep will ask you to start the engine to enable auto-detection and ensure CAN-bus speed/baud rate is detected. The process usually takes 1-2 minutes, but a full detection cycle may take up to 25 minutes.
  • Remote Download: The Rep will check the connection to the tachograph for RDL.

Step 9 | Finalize Installation

After the installation is verified by Customer Support, follow these steps:

  1. Reassemble the vehicle dashboard.
  2. Ensure that all components are working as expected.
  3. Ensure that all dashboard covers are replaced.

Step 10 | Verify Operation

Call support at 866.908.1165 or Log into Reveal Hardware Installer to verify operation.

Monday - Saturday 8:00 am - 6:00 pm

Minimum Device Requirements

Apple - iOS 11 and up

Android - Nougat 7.0 and up

To download Verizon Hardware Installer, visit:

For assistance using the Reveal Hardware Installer app, please see the Quick Start Guide.

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