Hi, I,m trying to hook up a PRO5100 mobile radio to a MC2000 Adavanced Deskset by using a L3276A Tone Remote Adapter. I hooked up the radio via the 16-pin acc connector to the DB25 at the L3276A, and then hooked up the MC2000 to the L3276A with a RJ11 to RJ11 4-wire cable that came with the MC2000. I manage to get PTT and TX audio to the radio without any problems, but there is no RX audio getting throug from the radio to the MC2000, neither on the internal speaker or on the handset (volume control is set to max). I checked that the audio was actually reaching the L3276 and that is confirmed. The interconnecting cable between the radio and the L3274 also checked ok. I tried the configuration dip switches inside the L3276, but none seems to be related to RX audio options. I also tinkered with the radio port RX level trimmers without any progress. I'm guessing there must be something I still need to configure in the L3274 (or MC2000) but as usual it is either not clearly indicated in any of the Mot manuals that came with these, or at least I've not been able to find it.
Could anybody that has succesfully hooked up this combination please tell what I'm missing here? BTW, I`m still waiting for the MS2000 RSS to arrive but I'm assuming that the factory programming should not prevent the RX audio from getting through. Thanks. -Alex
