TN763 Aux Trunk port general info and setup needs

[cwjr]

I'm looking for detailed information about the TN763 Aux Trunk card, what all it can be used for, and specifically how to set it up for various uses. I'd also like to find out about the S, S1, SZ and SZ1 pins are for, and specifics on how they may be used, connected to, strapped, etc. for different functionality

I can't find any documentation on support.avaya.com, other than the limited info about setting up paging and MOH in the adjunct installation document. If anyone can steer me to a more detailed document, or can post the info directly here, it would be greatly appreciated!

 

[dufus2506]

http://support.avaya.com/elmodocs2/...3/OutputInstallMCC/ConnCableDiags22.htm#99151

You can find the pinouts at the link above.

As for uses it's too numerous to mention.

Most of the functions of the pin connections have passed into obsecurity. Some were use to trigger the playback of messages on digital announcers, some were used as signaling, etc...

There really isn't much for "example configurations" since the aux trunk card was specifically designed to be the 'catch all' connector to the PBX. Just about anything can connect to it, and be controlled by it. Depending on the application, it could use any of the pins. (Imagine the old Dictaphone recording device, or the recorder that begins to record calls when agents press 'malicious call trace'...)

Any device you purchase will generally have instructions for the connections. It's usually only important to know where they are on the block, and how to configure the card. The things you connect to the aux trunk card will tell you how they should be properly connected.

Carpe dialem! (Seize the line!)

 

[cwjr]

dufus 2506,

Thanks for the response. What got me down this path was a thread/question I posted a few days ago about setting up a page group that would automatically be simultaneously paged when our receptionist did a Loudspeaker page. A member named redphone suggested that I connect a spare aux trunk port to an analog port that would "hot dial" the speakerphone group. I could then create the TAC in the paging loudspeaker form for that port, and have our receptionist use the tac code for "all paging". Seemed like it should work.

I couldn't get it to work, and it seems to me that the cross-connect between the aux trunk and the analog port is "missing something". I'm guessing that the aux trunk is not providing the "loop" to tell the analog port that it is "off hook" so that the hot dial takes place. That's why I started investigating the aux trunk pack to try to understand it better. I'm sure that some applications like connecting to an audio amp for paging, for example, or MOH, don't need any sort of loop current, whereas other applications of the aux trunk would require some sort of loop current or other way of signaling a far end device (in this case the analog port) that it is "off hook" and sending audio.

I don't think redphone is monitoring that other thread. That, plus my general curiosity, prompted this thread.

 

[dufus2506]

Oh! I see.

I think that the trouble you might be having is one of steady impedance.

Since the aux port is always going to appear as 600 ohms, the analog station should see itself as "off hook". I bet whta with the aux port connected and programmed, the station status would at first show "off hook" and then about 15 seconds later, disconnected.

You need to be able to toggle from "near infinity" to 600 ohms for the analog station port to notice that aux port is trying to "pick up the handset".

I think that your best bet would be to get ahold of one of those digital "delay paging" devices. The type they use in large retail stores to reduce feedback in the paging system.

Many of them have a port to which you can connect a phone line or trunk port to deliver the page to a distant location or system. The device will tone dial a code to connect to the far end system and play the page.

Carpe dialem! (Seize the line!)