Was: Dialing into ECS modem ... - Is: 7852-400

Don, et al  -

Some notes on the 7852-400 "Options" modem:
 - It supports ONLY 2-wire circuits for leased line connections

Dip-Switch Summary (what they mean):

Switch # Condition  Effect

1  Up*   DTR dependent on interface
  Down**   DTR forced on at all times

2  Up*   SLDC mode on
  Down   Bisync mode on

3  Up   Command mode response off
  Down*   Command mode response on
  Up   (LL) -15Db transmission
  Down**   (LL) -9Db transmission

4  Up   5853 emulation off
  Down*   5853 emulation on

5  Up*   Auto-answer on (dial up)
  Down   Auto -answer off (dial up)

6  Up*   Slave clocking off
  Down   Slave clocking on

7  Up*   RTS dependent on interface
  Down   RTS forced on at all times

8  Up   Command mode off
  Down*   Command mode on

9  Up   Local digital loopback on
  Down*   Local digital loopback off

10  Up*   Dial-up operation
  Down   Leased line operation

11  Up   External clock selected
  Down*   Internal clock selected

12  Up*   Synchronous mode on
  Down   Async mode on

13-14     Speed switches:
  Up-Up*   28.8
  Down-Up  19.2
  Up-Down  14.4
  Down-Down  9.6

15  Up*   CD and DSR normal (dial-up)
  Down   CD and DSR forced on
(LL)

Incidentally, all this is in the user manual for that modem in chapter 5 and
appendix A.

HTH

Laura Ausel  -  Keane, Inc., Service Partner
"Do something.  Lead, follow, or get out of the way."



owner-midrange-l@midrange.com on 05-26-98 12:09:02 AM
Please respond to MIDRANGE-L@midrange.com
To: CLEWIS@IQUEST.NET
cc: MIDRANGE-L@midrange.com
Subject: Re: Dialing into ECS modem with PC-based communications soft

Does anyone know if the DIP's have to be changed??

Don in DC metro
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