Batboard

Hello,

Can someone please help me with understanding the interfacing a Motorola Consollete base station to a Astro 7.11 trunk system CCGW card interface used with a MC7500 console? Motorola recently installed a full master controller upgrade to our intellirepeater with the addition of several MC7500 consoles used on a base in southwest Asia (where I am at) and gave me a print out of interfacing a base station through the CCGW card to the system but the information is so complete, I can't see the trees for the forest!
The CCGW card has V.24 RJ-45 jacks which are used to interface any kind of radio with RX TX audio, COR and PTT but looking at the pin-out diagram in the documentation given to me, I am not sure if the Consolette radios Accessory 1/RJ45 jack pin-out properly matches the requirements of the V.24. I'm told this port is the "TRC" port, I am assuming a digital port rather than an older two wire audio tone remote port I am used to working with 25 years ago, the last time I interfaced a Consollete to a TRC remote deskset. Can someone tell me if that assumption is correct? That V.24 equates to a digital TRC or can it be a pure tone remote device to pass audio tones and audio alone?

Also, my understanding is for a full interface to the Consollete base station, allowing user ID's on the trunk system as well as audio to pass back and forth from the CCGW card, I need to have two cables between the card and the radio, one going to the Accessory 2 DB-25 connector on the radio as well as the RJ45 to RJ-45 V.24 "null modem cable" between the CCGW card and the radio. It would be much easier for us, since we don't even have a DB-25 connector to be found on base (here in Afghanistan) is to find someone who makes this cable without having to go directly to Motorola, which is a big hassle for me. I'd rather pay out of my own pocket for these cables than to go through their process of ordering something like that.

Can anyone help?

Your saying a number of different things in your posting. Let me try and clear a bit of this up.

The CCGW is a 4 wire analog interface with PTT available. It can be used for either tone remote control or VOX operation. Depends on how you have the port programmed. The PTT comes from the E & M connections that can be used to key the remote radio. In this case the consolette. These connections are made to the lower accessory connector "accessory 2" on the radio.

If your looking for the data in and out from the radio to be controlled by the MC7500 system, these connections do not come from one of the 4 ports on the CCGW. That would be the V.24 interface and would come from another location in the MC7500.

I am not the person you need to talk with about the MC7500 data connection.

Jim

Start by reading the section: "ACIM Conventional Channel for Console Sites", located in the document: "MCC 7500 Console Sites", part #: 6871019P35-A, which is part of the Astro 25 documentation set available for download on MOL.

Thanks for helping clear this up, as you saw, part of the issue was simply understanding what ports do what on both the CCGW card as well as the Consollete base station. I've interfaced radios before for remote control PTT and audio etc., but have never worked with a CCGW card before. Much appreciate your perspective.

Wadsworth wrote:Thanks for helping clear this up, as you saw, part of the issue was simply understanding what ports do what on both the CCGW card as well as the Consollete base station. I've interfaced radios before for remote control PTT and audio etc., but have never worked with a CCGW card before. Much appreciate your perspective.

Do you have access to the manual that XMO has pointed you to? If not, you need to obtain it and have it available to look at as you step into the world of interfacing these radios. It also provides a good explanation of what is being done to do the control functions.

Jim

Hello,

I have to get it, still waiting for a DB25 data connector in the mail before I can proceed. If anyone has this document, my email is [email protected]

The newer routers with CCGW cards in them DO have V.24 ports and those connect to Acc 1 on the consolette for ACIM link control. The audio is handled between the E&M ports on the CCGW and Acc 2 on the consolette.