Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!pacific.mps.ohio-state.edu!linac!att!pacbell.com!lll-winken!telecom-request
From: covert@covert.enet.dec.com (John R. Covert  01-Apr-1991 1615)
Newsgroups: comp.dcom.telecom
Subject: Re: Information needed on 2500 DM Set
Message-ID: <telecom11.263.7@eecs.nwu.edu>
Date: 1 Apr 91 21:16:44 GMT
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X-Telecom-Digest: Volume 11, Issue 263, Message 7 of 16

> The M was added when modular hardware was installed.

Not so.  The "M" indicates that A-lead control is provided.
Internally, the set is wired so that the switchhook, when lifted,
makes a contact closure between the Black and Yellow wires, in order
to provide control if the station has an appearance on a key system.


/john