The other concern for 900 MHz was the preselector B7250, and it's the same device from the MCS2000. The 900 MHz radio has an option for the pre-amp, you want this enabled. Since it's multiplexed on the control head, it likely needs something to bring that to the right state. Looks like you'd need a RJ-45 jack and to plug into the TIB directly with it. Thoughts, it's likely that you can use the mic cable as a keyload cable. On the control head, this pin can be used by an accessory to turn the system on. Multiplexed HUB and KEYFAIL lines on the control head.
The RS232 signals are CMOS levels, 0-5 volts Mid-power transceivers do not support USB at the TIB GCAI connector. The interface used is based on a one-wire read of the connected accessory. Multiplexed USB D+ and RS232 transmit signal. The TIB GCAI port can not be configured as a USB host. When the GCAI port is configured as a host, this is the VBUS output, capable of sourcing 500mA. On the control head, when the GCAI port is configured as a device, this is the VBUS input used for enumeration. The RS232 signals are CMOS levels, 0-5 volts. Multiplexed USB D- and RS232 receive signal. Receive audio out designed to drive a 150Ω load. Asserting this input on the TIB results in auxiliary microphone input use (GCAI pin 7).
GCAI Connector both GCAI Pinout CGAI Pin FunctionsĪctive low Push-to-talk input. This thread on the Batlabs Batboard has some more info and this picture showing the differences below: The body looks like 2 D-Sub connectors stacked with standard pitch spacing on the pins.Īftermarket Pins will not work due to the low profile retaining ring. The pins come in a 25 pin strip Motorola Part Number: 3980034F05 The rumor mill puts money on ITT Canon being the manufacturer. The below is how the XTL's installed in my vehicle are connected:Īs of now, there is no other source for the connector than Motorola. Table of Pins Rear Accessory Jack Pin Functions
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