Batboard

Hello all

I installed a PM1500 in a fire engine and need to add extra speaker & mic connections at the pump panel.
Any help is appreciated !!
thanks
steve w

firebug24 wrote:Hello all

I installed a PM1500 in a fire engine and need to add extra speaker & mic connections at the pump panel.
Any help is appreciated !!
thanks
steve w

The radio has the ability to have an aux mic input and the PTT lines on the DB25 accessory connector, along with a ground wire.

Depending on the mic you use, there is a gain adjustment in the software just for the aux mic.

I don't have the service manual in front of me, but I also think there is a speaker connection also available on the DB25 accessory connector. Just make sure that you don't ground either side of the speaker wires.

Jim

Anyone know what the pinout would be on a CDM1250 mic to match the DB25 inputs ? I'm going to use 8 pin speaker mics (motorola CDM type) but dont have any ideas which mic wires shoud be connected .
HELP please
steve w

firebug24 wrote:Anyone know what the pinout would be on a CDM1250 mic to match the DB25 inputs ? I'm going to use 8 pin speaker mics (motorola CDM type) but dont have any ideas which mic wires shoud be connected .
HELP please
steve w

Now your really confusing the rest of us. The CDM mobiles don't use a speaker mic. They use a normal hand mic with a modular plug like an 8 pin RJ11 type connector. Either that or you have me confused in what your trying to describe.

If you PM or email me your email address, I can send you a PDF of the mic connections.

Jim

Sorry Guys

J11 plug handmic is what I was referring to. Anyways, According to the DB25 pinout on the PM1500 radio I need to connect the handmic to this DB25. I need to know which handmic pins go to which DB25 connector. I have 4 fire engines that want speakers & mics at the pump panel. Also, Would cat5 or cat6 wire work well with this advanture ?
thanks
steve w

Hello

Would anyone have RJ45 pinout to DB25 connector for this setup ?
thanks
steve w