Part Numbers

TRCM1: TIG31062, TIG31063, TIG31064, TIG31068

TRCM2: TIG31069

Part Name : Telma Retarder Control Module (TRCM1 or TRCM2)

The TRCM is the control module used with the Telma system. It has features such as PC interface for diagnostics and configuration. The TRCM has the ability to obtain speed signal, throttle position, ABS, and other information by listening to the vehicle CAN bus which can reduce Telma system installation time by eliminating the need to make multiple hard-wired connections to the vehicle. In addition, the TRCM is capable of receiving analog or digital inputs. Four digital (on/off) inputs are available that can be used with air brake system pressure switches or the Telma hand control switch. Also available is an analog (variable voltage) input for use with a pressure transducer installed in the air brake system instead of pressure switches or a rotary foot switch used for some hydraulic brake vehicles.

TRCM2 is the latest control module design. It has the same features as TRCM1 such as PC interface for diagnostics and configuration as well as connection to the vehicle CANBus to obtain speed, ABS, and other information. It also has the following new features.

  • Direct USB connection to PC using virtual COM port and auto connect with USB-C connector on the board and no need for USB-to-serial adapter.
  • Capability to control not only a mechanical relay box as before but now also a fully electronic power module using dedicated CAN line and custom CAN messages.
  • Bluetooth connection for configuration and diagnostics using apps for Android and IOS devices.
Document # Description
TL105087 TRCM1 Introduction
TL105088 TRCM1 Product Profile
TL133006 TRCM OEM Guidelines J1939, J2284
TL105090 Downhill Speed Control
TL103036 TRCM1 Installation Guide
TL103024 Universal Wiring Installation Procedure TRCM - No CAN
TL103037 Universal Wiring Installation Procedure TRCM - J1939
TL133009 TRCM1 Software User Guide
TL133012 TRCM2 User Guide
TL133013 TRCM2 iRCS Dyno User Guide

 

The Telma Desktop Client Software is needed for configuration and diagnostics and is a free download from our website.

 

TRCM1 Desktop Client

This is the Telma control module sold from 2011 to 2019. Most documentation refers to it as TRCM. Check the label to see what you have. TRCM1 was sold under the part numbers TIG31062, TIG31063, TIG31064, and TIG31068.

Download the latest software here.

TRCM1 Desktop Client Software

 

TRCM1 Desktop Client Software Google drive

TRCM1 can be connected to a laptop or desktop using a 9 pin serial port connector. If the computer does not have a serial port, you will need to order usb-to-serial adapter TIG01027. If you already have the software, check if you need to download a new version by going to help/about to see if the software is compatible with the firmware version of your module.

If your computer does not automatically install the driver for the usb-to-serial adapter TIG01027 go to Windows update to have Windows automatically search and install the correct driver. If this does not work you can download the driver below

TIG01027 USB to Serial Adapter Driver - Windows XP/7/10 (32 and 64 bit)

 

TRCM2 Desktop Client

This is the control module introduced in 2019. Check the label to see what you have. It will be labeled with TRCM 2 as well as the part number TIG31069.

Download the latest software here.

 TRCM2 Desktop Client Software

 

TRCM2 Desktop Client Software Google Drive

TRCM2 uses the virtual COM port driver built into Windows 10 so driver installation is not needed. If you are running Windows XP to W7 and your computer does not automatically install the driver go to Windows update to have Windows automatically search and install the correct driver. If this does not work you can download the driver below. You will need to know if you are running the 32bit or 64bit version of Windows.

 

TRCM2 Virtual COM port driver Win XP-W7 32bit

 

TRCM2 Virtual COM port driver Win XP-W7 64bit