When you are plugging an RJ45 connector into the MIC jack, the tab will either
be on the right or on the bottom. If it's on the right, the uppermost pin is
#1. If the tab is on the bottom, the rightmost pin is #1. If the MIC jack is
oriented some other way, make the appropriate adjustments. Note that this pin
numbering may not match any other cable you have, but that's the way Motorola
numbers them for a lot of their radios and the pin numbers given below
correspond to this orientation.
Ground is pin 4. The programming line is pin 7. Those are the only two wires
you need for programming purposes. If you crimped all 8 wires into the RJ45
connector, check the other wires at the other end of the cable and make sure
they're all clearly insulated and not attached to anything.
Also, make sure you connect the cable to the RIB and power up the RIB before
plugging the RJ45 connector into the radio. The radio can be turned on before
or after you plug the RIB cable into it.
Bob M.
======
--- On Thu, 2/5/09, Jeff Clark <je...@cruzio.com> wrote:
> From: Jeff Clark <je...@cruzio.com>
> Subject: [Repeater-Builder] M1225 programming problem
> To: Repeater-Builder@yahoogroups.com
> Date: Thursday, February 5, 2009, 9:22 PM
> Hope this is the correct group for this kind of question.
> I'm trying
> to program two m1225 UHF mobiles with a Polaris PA-II rib
> and a cable
> assembled per the batlabs cable page (listed same as
> GM300). I've
> checked and double checked the connections on both ends and
> made sure
> the tab on the rj45 end is oriented according to the
> diagram, but
> when I plug it in to the mic jack and turn on the rib, the
> radio keys
> up and stays keyed until I kill the power or pull the plug.
>
> I've tried this on both radios with the same result,
> and I've
> programmed my P1225s with the same rib, so I'm
> wondering if the
> pinout on the rj45 jack is wrong. Are there additional
> pinouts beside
> the one listed on the batlabs page?
>
> thanks,
>
> --jeff, kf6bkg
