INTEGRATOR'S GUIDE Trimble TRM 900 ®
AMERICAS & ASIA-PACIFIC Trimble Navigation Ltd. Integrated Technologies 510 DeGuigne Drive Sunnyvale, CA 94085 USA +1-408-481-8070 Phone +1-408-481-8984 Fax EUROPE & MIDDLE EAST Trimble Navigation Ltd. Integrated Technologies HAL Trade Center Bevelandseweg 150 1703 AX Heerhugowaard Netherlands +31-725-724-408 Phone +31-725-348-288 Fax RUSSIA Trimble Navigation Ltd. Integrated Technologies Tel: +7 495 5041081 Email: rusales-pc@trimble.com CHINA Trimble Navigation Ltd.
Contact Information Trimble Navigation Limited Canada Integrated Technologies 510 DeGuigne Drive Sunnyvale, CA 94085 USA Antenna Statement 1-408-481-8070 Phone 1-800-795-1001 (USA toll free) 1-408-481-8982 Fax www.trimble.com Support hours are 8 am to 5 pm Pacific Time. Please visit our website for up-to-date news and product announcements. Firmware and software upgrades are available from our website, usually free of charge. Notices This device complies with Part 15 of the FCC Rules.
Safety Information Before you use your radio, ensure that you have read and understood this publication, as well as safety requirements. CAUTION – A license is required before operating radio communication equipment. Warnings and cautions An absence of specific alerts does not mean that there are no safety risks involved. Always follow the instructions that accompany a Warning or Caution. The information they provide is intended to minimize the risk of personal injury and/or damage to the equipment.
• Do not operate the transceiver unless all RF connectors are secure and any open connectors are properly terminated. • Avoid contact with the antenna while operating the transceiver. • Do not operate the transceiver with a damaged antenna. If a damaged antenna comes in contact with the skin, a minor burn may result. • Do not operate the equipment near electrical blasting caps or in an explosive atmosphere.
Contents Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Interface Port Pin Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction This guide provides information concerning the integration of the TRM 900 radio modem transceiver into your product (Model Number: TRM900 MHZ TX/RX). This guide should be used in conjunction with the GNSS Receiver User’s Guide – Dealer Version that should be referenced for general information concerning the configuration of TRM 900 modems, and also for detailed programming information. The TRM 900 is a general-purpose radio modem transceiver that is compatible with other Trimble radio modems.
Interface Port Pin Out The standard TRM 900 transceiver comprises a 30-pin port for power, data and interfacing with other electronic devices. 30 Pin TRM 900 Board The following signals are available on the 30-pin connector: Pin 1 2 3 4 5 6 Name GND DO NOT USE TX DO NOT USE GND DO NOT USE TRM 900 Intergrator’s Guide Description GROUND FOR SIGNAL AND POWER FACTORY USE ONLY, NO CONNECTION TX DATA, DTE SERIAL PORT, 3V CMOS (3.
Pin Name Description 7 GND GROUND FOR SIGNAL AND POWER 8 9 10 DO NOT USE GND DO NOT USE 11 CONFIG 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 DO NOT USE DO NOT USE RX DO NOT USE DO NOT USE DO NOT USE VCC GND GND GND GND VCC VCC VCC VCC VCC VCC POWER GND FACTORY USE ONLY, PLEASE LEAVE NO CONNECTION GROUND FOR SIGNAL AND POWER FACTORY USE ONLY, PLEASE LEAVE NO CONNECTION I/O TO FORCE RADIO SWITCH BETWEEN OPERATING MODE AND CONFIGURATION MODE FACTORY USE ONLY, PLEASE LEAVE NO CONNECTIO
Antenna Port A coaxial antenna port is provided for connecting the antenna system to the TRM 900 transceiver. The antenna connector is a 50-Ohm MMCX type. Appendix B provides part numbers and manufacturer information for compatible interface and RF connectors. Warning: Don’t transmit without first connecting an antenna. Compliance The TRM 900 transceiver radio modem is designed to be compliant with FCC and Industry Canada regulatory requirements, including FCC Part 15.247.
Protocols and Modes of Operation The TRM 900 transceiver radio modem is completely configurable using host GNSS receiver software. Configuration parameters define the DTE interface and the over-the-air protocol. Depending on the application you may need to change the factory default settings. The following table shows the factory default configuration of the TRM 900 transceiver.
Electrical Considerations Power Supply The TRM 900 transceiver has a power supply connection on Pin 18 and Pins 23 to 28 of the interface connector. Pins 1, 5, 7, 9, 30 and Pins 19 to 22 are connections to both power ground and serial interface signal grounds. Note that these pins are tied to a common point on the TRM 900 transceiver.
Mechanical Considerations EMI interferers The TRM 900 transceiver is easily mounted inside new and existing products. The TRM 900 transceiver is specifically designed for operation in harsh environments. For best performance, mount the radio away from potential EMI radiators and route RF signals apart from digital signals. Caution: We do not recommend the bundling of the antenna interface cable with other signal cables internal to your product.
RF CONNECTOR RIGHT SIDE MMCX FARSIDE DATA CONNECTOR AVX TRM 900 Mounting Template with Shields Appendix A - Cables and Connectors Interface Connector The 30-pin data/power header is a Samtec TFM series housing a standard-configuration connector, AVX part number 14-5046-030-630-829. The mating Samtec connector is part number 24-5046-030-600-829 for a board-to-board interface See AVX website: http://www.samtec.com and www.AVXcorp.com for other mating connector options.
