Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!wuarchive!uwm.edu!lll-winken!telecom-request From: IZZYAS1@mvs.oac.ucla.edu (Andy Jacobson) Newsgroups: comp.dcom.telecom Subject: Re: Need ComKey 416 and Multiline Phone Information Message-ID: Date: 28 Mar 91 09:21:00 GMT Sender: Telecom@eecs.nwu.edu Organization: TELECOM Digest Lines: 40 Approved: Telecom@eecs.nwu.edu X-Submissions-To: telecom@eecs.nwu.edu X-Administrivia-To: telecom-request@eecs.nwu.edu X-Telecom-Digest: Volume 11, Issue 256, Message 1 of 10 In TELECOM Digest V11 #239 Douglas Scott Reuben writes: > while the other base/power unit powers lines three and four. I have > looked extensively at all the markings inside and outside of the power > units, and see no indication which would easily tell me which one is > which. There are movable blocks inside the unit (under the > DSS/intercom page buttons), but I dunno if they have anything to do > with selecting whether the unit runs L1/2 or L3/4. I found this out > via experimentation with the equipment I have, and there is perhaps a > much simpler way to connect all four lines. (Perhaps something like a > "91A" block, etc?). Yes those movable blocks will select for lines 1/2 or 3/4. One of these Molex-like connectors can be moved from one set of pins to another, making the switch. > I've never tried to connect a ComKey power unit to a 1A2 > system! (The 1A2s, of course, don't have any cards to blow out, at > least not in the phones themselves.) These things are possible. In basic operation, without the various added features, the ComKey is really a 1A2 compatible beast. But don't try to connect them directly as the A/A1 control does not match. 1A2 type phones can certainly be used as stations if you match the proper wiring, and make sure the 1A2 unit has no conflicting option wiring in the spare pairs of its 25 pair cord. The one basic incompatibility is the lack of ringdown. Best to break out the wiring on a jiffy box or other 66-type block and jumper only the leads in use. I have two AT&T Touchamatics, and several 2565 type phones run off of my 416 base unit, and everything works fine save for intercom signaling, which is unfortunately incompatible to the best of my fiddling. Also, I have found the power supply on the thing amazingly resilient as I have inadvertently shorted out the DC on it several ways with no damage. Andy Jacobson or