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Call Logging Interface

Call Logging Interface

Call Logging Interface

I've been asked to fault find a problem with a NORTEL CALL LOGGING INTERFACE which is connected to a computer which I'm responsible for.
I freely admit that telecoms is a bit of a mystery and would appreciate any help.
Apparently the computer stopped logging calls some time ago, before either the computer or call logger was my responsibility.
I'd be interested in any information you can give regarding the wiring (pinouts) for the CALL LOGGING INTERFACE.
There are of course no manuals available on site and the only markings on the unit are as follows:
IC 102092
I don't know if any of these numbers is sufficient to positively identify the unit which is connected to the computer via a 9 pin "D" Type connector.
I would be most interested if anybody could tell me the pinout designations, if it needs any kind of flow control enabled, and what baud rate is used (the port setup on the computer would suggest 1200 baud ???).
If anybody could throw any light on the subject I'd be most grateful, at least I'd have a starting point for my investigations.


RE: Call Logging Interface

Not sure of the pinout but if your asking around it is an SMDR unit you have by the sounds of it.

RE: Call Logging Interface

Yep, according to the Norstar product catalog it is an SMDR unit of some kind.

NT8B95AC A0395877 Station Message Detail Recording 2 Interface Unit
NT8B95AE A0404659 SMDR (Version 3)
NT8B95AG A0623207 Station Message Detail Recording 4 NT8B95AR-93 A0733824 Station Message Detail Recording 6

What happens is that the SMDR is connected to a station port off of your phone system. It then downloads all the call information to your PC, inside the PC you have Call Accounting software of some kind installed. It deciphers the information into user defined reports. OR you can look at the information using Procom or Hyperterminal.

RS 232 Pin Configuration:

9 pin        25 pin        signal name     direction

1            --             not used
2            3              Rx Data         From SMDR
3            2              Tx Data         To SMDR
4            20             DTR             To SMDR
5            7              Signal Ground      --
6            6              DSR             From SMDR
7            --             not used           --
8            5              CTS             From SMDR
9            --             not used

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