[net.periphs] Ven-Tel 212 Plus on Develcon Dataswitch

h (05/28/82)

We are another site trying to use the Ven-Tel MD212 Plus modem on
our Develcon Dataswitch.  The modem is connected to a model 9114
SLIM and we are running with Level 3.4 (DTR-up mode) Dataswitch
software.  I am pleased to report that subscribers can repeatedly
originate calls through the modem without problems.  We are,
however, having problems in trying to get that same modem to
answer calls.  The Ven-Tel asserts DSR, CTS, and DCD when powered on.
When dialed, RI is asserted properly and the Dataswitch responds
with DTR and RTS after two rings.  The Ven-Tel, however, will not
answer with the carrier tone and continues to ring (asserting RI).
The Dataswitch then drops its signals after the 15 second
period and reasserts them after two more RI's.
Any information would be appreciated.

						Bill Beblo
						Bell Labs - Murray Hill
						(201)-582-7365
						8-231-7365