Motorola XTL 2500 remote mount cable

[allanif]

Currently I'm doing my project for XTL 2500 with remote control head. The distance between the radio body and control head is 40m.
Is there someone knows the no. of pairs of the remote mount cable (40m)?
I'm asking this because I want to know if there is any available spare cable pairs to use for yellow, red and black cable power leads?
As you can see 40 m is quite long, or the best thing I will lay separate cable for this? 2 wire cable for (yellow and red to combined for + supply)and (blk for negative supply).
Need your advise on this. Thanks for the time and help.

[escomm]

HKN6164 is 131 feet, that will be very close. Why not run the power cables from a more local power source? 40 meters could be a bit far for 12V you might see some voltage drops under load

[allanif]

Yes the remote mount cable model is correct.
The only 12V supply (redundant) is nearby the transceiver body and there's no available power source nearby the control head. I also understand that there might be voltage drop due to long cable wire(40m). But I guess if control head draws only few milliamps, I can use 14AWG 2-wire cable.
Does anybody knows the current drawn from the control head or what is the advisable cable size to use for 12V supply for 40m cable length?
Or I can use the remote mount cable if there is a spare wire? Thanks

[allanif]

Just now I found out that the remote mount cable has 3 pairs and found the J300 pinouts are ff:

Pin Function Description
1 CAN_1_HIGH TX+ (AUDIO)
2 CAN_1_LOW TX- (AUDIO)
3 CAN_3_HIGH TX+ (PWR) Dedicated for System ON/OFF/RESET commands.
4 CAN termination detect pin Pin 4 shorted to GND inside each end of the CAN cable.
5 A+ Only routed on the “03” CAN cable
6 CAN_3_LOW TX- (PWR) Dedicated for System ON/OFF/RESETcommands.
7 GND Drain wire wrapped around GND shield
8 NO PIN
9 CAN_2_HIGH TX+ (DATA)
10 CAN_2_LOW TX- (DATA)


I don't think I can use this cable for Mobile Power, 12VDC.

So the only solution is to run 40 meters of power cable. I understand that there might be voltage drop due to long cable wire.
Does anybody knows the current drawn from the control head or what is the advisable cable size to use for 12V supply for 40m cable length?
Thanks