XPR 5550 Pin 26 Question

[MICU-RN]

Okay so please excuse with me as this is a multifaceted question that I can not seem to come up with an answer for, I have tried to include all the information necessary for anyone viewing this but if I leave anything out please let me know. This radio has the most up-to-date firmware.

I have a Motorola XPR 5550 remote mounted in a vehicle that I would like to use to control external 12 volt lights. So here are a few things that I (think) I know.

• Pin #26 (VIP_1) is 12V tolerant and should be used for less than 250 mA
• So if I set Pin #26 as "Generic Output 1" and active level as "High" I should be able to use this as an on/off selector for my lights?

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Now I would place a typical automotive relay to ensure less than a 250 mA draw on the radio itself.

What I can not seem to figure out is how to "trigger" this Generic Output 1 from that radio itself, I assume there is a button selection I can chose from on the menu area in the below picture.

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If there is anyone out there that can help me I would greatly appreciate it!

 

[Mars]

In CPS, if you go into the HELP --> Contents & Index --> Search, and type in #26, it will bring up the Pin #26 information.

It says: This output line allows for status indication to the option board and level switching from the option board (applicable to Mobile configuration only).

So apparently it's an i/o line for the option board.

In button config, you can set a button for "Option Board Feature 1" (through 6). Apparently you need an option board with specific software to utilize the i/o functionality/control of pin #26.

I'm unfamiliar with what options are out there for the GOB/firmware.

It might be too much trouble to go through just to get on/off light functionality to your radio keypad.

 

[Jutod]

You should be able to use a portable radio to target your mobile radio and use the General Purpose I/O pins on your mobile as a radio to radio telemetry concept. Google it and you should find documents and you tube videos to show you how to do it.

 

[com501]

This would be a handy 'How-To' tutorial if someone wants to tackle this. Although rarely used, it is a feature that could be used to great benefit if people understood it better.

 

[rainbowpenguin]

I don't have a radio handy to test it on, but I think this'll do what you want.

1. Use pin 24 -- set Feature to "Telemetry VIO 1", set Active Level to "High"
2. Assign a front panel button to "Telemetry Button 1"
3. Under Telemetry, set "Telemetry Button 1" -- Action to "Send Toggle Voltage Command", Mode to "none", Target VIO to "Telemetry VIO 1"

You should then be able to push the assigned button, and toggle pin 24 on/off. Any of pins 19, 20, 21, 22, and 24 can be used for Telemetry VIO.

In the on-screen help on the button page, it lists "Telemetry Button 1" as "Allows the radio to control its own or another radio's GPIO pin's logical voltage level by sending Telemetry commands/messages." Being that you don't (shouldn't) need to transmit to control local vio pins, I think selecting "none" for mode should work.