How to interface a headset with XTL 2500
Posted: Wed May 20, 2015 8:21 am
I'll state up front that I'm not a radio expert. I have done several straight-forward installs at our fire department, but I need some guidance on the setup for our new fire truck. We just ordered the truck and would like to have a PTT headset at the pump panel. We don't have the luxury of having dual-head radios, which would make things a little easier. We also don't have the extra room in our budget to have the truck manufacturer install a pump panel communications system (which they integrate with a cab intercom system - something we don't need or want).
What we are wanting to do is interface a Firecom PTT headset (like the UH-10) directly into the accessory port of our XTL 2500 mobile in the cab. (Again, the manufacturer of the truck is saying they'd have to run it through the Firecom intercom system with several modules before finally tying into the radio itself. I don't believe this.) I can get my hands on a Firecom PP-20 weatherproof jack that's designed for use on a fire truck pump panel. It is a 5-conductor jack for use with their 5-conductor plug headsets. The PP-20 has a long run of flat cable coming out of it that ends with a RJ-12 plug.
Here is the pinout of the 5-conductor plug on the headset:
-Speaker High
-Speaker Lo
-Mic High
-Mic Low
-PTT
My question is this: given the pinout shown above, how would I connect this to the accessory port on the XTL 2500? Can it be done? Which wires would be connected and to what? This is the part I'm unsure about. I would have no problems doing the actual installation of this once I figure out what connects to what. I would appreciate any and all help.
What we are wanting to do is interface a Firecom PTT headset (like the UH-10) directly into the accessory port of our XTL 2500 mobile in the cab. (Again, the manufacturer of the truck is saying they'd have to run it through the Firecom intercom system with several modules before finally tying into the radio itself. I don't believe this.) I can get my hands on a Firecom PP-20 weatherproof jack that's designed for use on a fire truck pump panel. It is a 5-conductor jack for use with their 5-conductor plug headsets. The PP-20 has a long run of flat cable coming out of it that ends with a RJ-12 plug.
Here is the pinout of the 5-conductor plug on the headset:
-Speaker High
-Speaker Lo
-Mic High
-Mic Low
-PTT
My question is this: given the pinout shown above, how would I connect this to the accessory port on the XTL 2500? Can it be done? Which wires would be connected and to what? This is the part I'm unsure about. I would have no problems doing the actual installation of this once I figure out what connects to what. I would appreciate any and all help.