MTR2000 / MRTI port

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k9sa
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Joined: Tue Apr 14, 2009 8:15 am

MTR2000 / MRTI port

Post by k9sa »

Anyone using the MRTI port on an MTR2000 repeater? I tried connecting to it and it seems to work with one exception. If the repeater is keyed and gets a MRTI PTT on the MRTI port, it causes the repeater to reset. Obviously it shouldn't do that or it wouldn't work with a MRTI. I tried it on 2 different MTR2000s and both do the same thing. It does it even if there is nothing connected to the MRTI port other than a PTT wire. MRTI is enabled in the RSS. Any suggestions? Anyone have a programming code plug file they can send me for an MTR2000 with a MRTI on it?

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thebigphish
Posts: 1477
Joined: Sat Nov 29, 2003 10:10 pm
What radios do you own?: AM/FM

Re: MTR2000 / MRTI port

Post by thebigphish »

confirm the polarity on the MRTI PTT line. Are you infact pulling them low? If you apply a standard active-high COR you might short the unit, cause a fault, and force a reset.

I've used the MRTI connector for interconnect, and have actually had more luck using the standard backplane for it.
"How do you plan to outwit Death?"
"With a knight and bishop combination; I will destroy his flank.
" --Antonious Block
k9sa
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Posts: 4
Joined: Tue Apr 14, 2009 8:15 am

Re: MTR2000 / MRTI port

Post by k9sa »

Polarity OK. I'm grounding the PTT line and the station keys OK. But if I ground it while the MTR is repeating, it resets.
thebigphish
Posts: 1477
Joined: Sat Nov 29, 2003 10:10 pm
What radios do you own?: AM/FM

Re: MTR2000 / MRTI port

Post by thebigphish »

theres 2 pins there w/ the same job, which one are you using? I don't have my manual infront of me...but IIRC its pin 2 & pin 11. Is it reproducible on both pins?
"How do you plan to outwit Death?"
"With a knight and bishop combination; I will destroy his flank.
" --Antonious Block
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