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VX-2500 DB9 Serial connector pin out

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cdesigns

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Does anyone have the Vertex VX-2500 DB9 serial connector pin out? information on goggle seems contradictory. Thanks
 

T1poirier

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Hello - You're looking for the accessory connector correct?

Attached is the DSUB 9 pin out directly from Vertex's business portal.

EDIT: I should clarify, this is from the 2500/3200 section of their technical reference.
 

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cdesigns

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Hello - You're looking for the accessory connector correct?

Attached is the DSUB 9 pin out directly from Vertex's business portal.

EDIT: I should clarify, this is from the 2500/3200 section of their technical reference.
Thanks for the info, I was hoping to find audio in/out in there , but I guess I will have to find it from the speaker and front input jack.
 

cmdrwill

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Pin 2:
JP4 (JP1504) - Filtered 300 Hz to 3.0 kHz (70 mVrms / STD deviation with 600 ohm termination)
Notes: JP3: Closed from the factory. JP4: Not Closed from the factory.
You HAVE to change the 'jumper' s in your radio.

This would be receive audio output and it is not affected by the volume control.


And transmit PTT and audio would go into the mic jack.
 

cdesigns

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Pin 2:
JP4 (JP1504) - Filtered 300 Hz to 3.0 kHz (70 mVrms / STD deviation with 600 ohm termination)
Notes: JP3: Closed from the factory. JP4: Not Closed from the factory.
You HAVE to change the 'jumper' s in your radio.

This would be receive audio output and it is not affected by the volume control.


And transmit PTT and audio would go into the mic jack.
I'm trying to hook up a Simplex Repeater controller, I need adjustable audio to make sure the audio is not to high when it enters the controller, this simplex controller is meant for HTs with volume control, I might have to play with the external speaker phone jack and the Mic connector. Hmmmm
 

cmdrwill

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You would need a series resistor in the receiver radio audio out to the transmitter mic in anyway, so make that a pot, variable resistor. A 10K pot would be a starting value.

And all you need is just some wiring, not some "simplex repeater controller" thingy......
 

cdesigns

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Im trying to make a simplex repeater using the RT-SRC2 controller and the VX2500, the simplex repeater controller that I plan to use records up to 120seconds and then "repeats" the transmission on the same channel it receives.

I need to rewire the connections from the controller to HT to controller to vx2500, I have all the connections with the exemption of the adjustable audio out from the vx2500, does the volume knob on the VX2500 controls the audio output on the headphone jack on the back?
 

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cmdrwill

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You may still need a adjustable resistor in the Mic lead to set the transmit audio so you do not overdrive the transmitter.

Use the pin 2 for your receiver audio and pin 5 for the ground on the 9 pin going to the "Simplex Repeater controller" parrot board. That IS a fixed level and should be correct level for the board.

You may need a blocking capacitor in your mic lead depending how the parrot board keys the radio. Some hand held radios key the transmitter by grounding the remote mic circuit.
 

cdesigns

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I got it to work, I soldered the internal speaker output to the unused pin the mic jack and then to the input audio of the Repeater controller, but I had to use a new ground because the MIC JACK ground wasn't enough.

The internal speaker of the radio is disabled the report you hear back is from my HT. so far works excellent, I did had to reduce the MIC gain on the radio software though.

https://www.youtube.com/watch?v=GGLYi13mnsY
 
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