macy@hal.cwru.edu (12/19/89)
I'm looking for a tie line adapter card/unit.
It's normal application would to add two way dial repeating tie lines
(probably two wire E&M or loop signalling) to a system not normally
able to provide such a function.
The most desirable configuration would be to accept one loop|ground
start trunk (for outgoing) and one station (for incoming) from the
host system and provide a standard tie trunk function interface:
+--------------+
Station <--------| |
| Adapter |<--------> 2W E&M to carrier
Trunk -------->| |
+--------------+
^
|
Power
I saw a unit advertised for this purpose several years ago (for a
Mitel SX-20, I think) but did not remember who made it. I don't find
this in any of the usual catalogs/source, either.
I could design and build one easily enough, but I have learned from
hard experience over the years that off-the-shelf is usually a better
choice.
Thanks in advance to all. Regards,
Macy M. Hallock, Jr. macy@NCoast.ORG uunet!aablue!fmsystm!macy
F M Systems, Inc. {uunet!backbone}!cwjcc.cwru.edu!ncoast!fmsystm!macy
150 Highland Drive Voice: +1 216 723-3000 Ext 251 Fax: +1 216 723-3223
Medina, Ohio 44256 USA Cleveland:273-3000 Akron:239-4994 (Dial 251 at tone)
(Insert favorite disclaimer here) (What if I gave a .sig and nobody cared?)