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PM400

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FireEng828

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Can anyone help me with a wiring diagram to install a pm400 mobile accessory port to a motorola handset HLN4756a in the back of our ambulance?
 

SteveC0625

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Can anyone help me with a wiring diagram to install a pm400 mobile accessory port to a motorola handset HLN4756a in the back of our ambulance?
I don't find any info on that model number. Can you double check it and also see if you have any docs or a schematic for it?

I have the radio end info, but without the handset schematic or at least the wiring pinouts, it's not going to be easy to get you pointed in the right direction.
 

SteveC0625

Order of the Golden Dino since 1972
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Here is a temporary link to the PM400 install guide. I hope it helps you. https://mega.nz/#!e5xGwByb!mW-ppejdb1IPnOmNp2F87kXiVSAoHNjn8rYAp8lT0i4
I already have full docs on the PM400 and it's sisters, the CM200 and CM300. Those radios are in the fleet that I help manage so we have all that info on file.

It's the handset that is a bit of a mystery. I did not any info on it in several google searches. Without some info, hopefully a schematic, on the handset, offering helpful advice over the net is not much of a possibility. Now, if I had the handset here where I could dissect it and figure out the wiring, mating it up to the PM400 would be straightforward.
 
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