Tait TB7100

Front View
Rear View

Tait Download Page:
https://support.taitradio.com/systems-and-products/tb7100-base-stations-repeaters/tb7100

TB7100 Base Station Installation and Operation Manual (local)

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Connectors and Pinouts

Front-and-Rear
Mic-pinouts.png
PinFunctionSignalCommentWire ColourDB9 Pin
1Not connectedGreen/WhiteN/C
2+13.8VOutput+13.8V 250mAGreenN/C
3TXD InputTransmit DataOrange/White2 RX
4PTT InputPTTBlueN/C
5MIC InputAudio InBlue/WhiteN/C
6GND GroundGroundOrange5 GND
7RXD Receive Data OutputReceive DataBrown/White3 TX
8Not connectedBrownN/C

Pins 3, 6 & 7 are used for the programming cable to the serial port.
Pins 2, 4, 5 & 6 are used for the Mic input.

DB9 Female Rear View

To null the connection so the cable will activate (fool) any hardware flow control signal that may be required, jumper the follow sets of pins. Connect pins 1,4 and 6 together and connect pins 7 and 9 together. Note that this is unlikely to be required for most modern equipment to operate successfully, especially USB to Serial adaptors.



DB9-Female-Rear-View.jpg db9m-pinout

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Null Modem Cable

D9_Null_Modem_Wiring

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USB to Serial for Use with PC and Programming Software

IOCrest USB to Serial (RS232, DB9 Male) Cable Adapter - FT231X PCI Vendor ID 0403 Product ID 6015:

USB-Serial USB-Serial-IOCrest

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Programming Software

For programming the base station, the PROG / MIC port must be used

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Upgrading the Firmware

Technical Note TN-1832b-SR
TB7100 Base Station Firmware v2.19 and PC App v1.22 - 6 December 2012
http://support.taitradio.com/__data/assets/pdf_file/0018/90441/TN-1832b-SR_TB7100_v2.19.00.pdf

Note the section:
Before you change any firmware:
  1. Using the latest programming application, read and save the module’s programming database.
  2. Using the latest calibration application, read and save the module’s calibration database.
After you have successfully changed the firmware, reprogram and recalibrate the module using the files saved above.

Downloading the Firmware

Download version 2.19.00 of the Firmware here:
https://support.taitradio.com/__data/assets/file/0017/90431/TB7100_FW_v2_19_00.zip

In case htere has been a new version, check for the latest firmware here:
https://support.taitradio.com/systems-and-products/tb7100-base-stations-repeaters/tb7100?SQ_PAINT_LAYOUT_NAME=rcsoftwarefirmware

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RIM to Repeater cable

System Connector J106

System-Connector-J106.png

Repeater Builders RIM Lite db9 pinouts

RB-RIM-Lite-db9-pinouts

Cable Wiring Diagram



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SGQ-450 25W UHF Duplexer

Duplexer
Specification:

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Selection of Frequency Pairs

High 439.725Mhz and Low 434.725Mhz RX Freq: 439.725 MHz TX Freq: 434.725 MHz Offset: -5.0 MHz CTCSS: 91.5 Hz

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Hardware Calibration



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References

SK2HG's Tait TB7100 as DMR repeater:
http://www.sk2hg.se/wp/?page_id=3246



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Glen n Lyons VK4PK
glenn@LyonsComputer.com.au
Ver:gnl20191217 - pre published v0.9