atcomsystems.ca/forum Forums Other TDM Phone Systems 1A2 and Comkey Telephones & Systems The next project

Matt -

If I understand you correctly, that is exactly what you want to do. The 410PA card doesn't care whether it gets a burst of signal from the 601s Icm or the C19 or from......anything else. As I recall (and it's been a real long time [30+ years]) It recognizes the signal and throws the ICM T&R onto the PA system input (muting the bgm too).

Recognize that the glory & perfection of 1A2 was its interoperability. I often installed complete systems that had 6 different manufacturers (KSU from ITT, Intercom from Teltone, Cards from AE, Phones from SC, etc....) There were some notable exceptions but for the most part it all Just Worked.

Sam

Very cool Sam - just to be clear so I'm sure you understand what I want to do - run a lead from one of the C-19's signal outputs over to one of the SIG 0-9 on the KSU. The ground will/should already be common between the C-19 and the KSU.

Thanks!
Matt

Matt -

NO!

You would run a signal lead from the C-19 to the control lead on the 410 PA. You want to control the card with the DICM. Now where is that lead?

This is where we need the schematic for a 410 PA. We could guess. I would try the A Lead first & if that doesn't work, then the RC lead.

Anyone have a schematic for a 410 PA?

Sam

Thanks Sam!

I think we're in luck. I still need the schematic cause the jumpers on the 410 scare me, but, here is some text from the 601 manual:

11.03 Determine the line card posiiton to be used and connect COT and COR of that line posiiton to the amplifier inputs.

11.04 Determine the intercom number to be used for voice paging and connect the corresponding SIG terminal on row 40 or 41 to the RC terminal of the line position used.

11.05 Connect any T Terminal of the line position used to any intercom T Terminal on row 42 or 44.

11.06 Connect any R terminal of the line position used to row 30, terminal 6, and connect row 31, terminal 6 to any intercom R terminal on row 43 or 45.

11.07 Connect any A terminal of the line position used to any terminal 6 of rows 1 through 10.

11.08 Connect the AG terminal to the RG terminal of the line position used.



So, it looks like I'll run the signal from the C-19 to the RC terminal for line 3 (That's the slot I think I'll be using), just as you guessed!

It's 11.05 and 11.06 that concern me, since I won't be using the built in T&R for intercom use - They'll be supplied by the C-19. Would I simply connect the T&R from the line card position to the T&R of the C-19?

Thanks
Matt