[comp.dcom.modems] USING ZENITH 2400 BAUD MODEMS FOR SYNC. COMM

zamadmin@ZAMA-EMH.ARPA (Zama Host Administrator) (08/17/87)

I have a user who requests assistance using a zenith modem.  His
request follows:

SUBJECT: USING ZENITH 2400 BAUD MODEMS FOR SYNCHRONOUS COMM
        
I AM ATTEMPTING TO USE THE ZENITH 2400 BAUD MODEMS FROM THE    
ZENITH 248 CONTRACT TO COMMUNICATE SYNCHRONOUSLY. I HAVE UNDER
THE 'SMART' MODE USED A ZENITH PC TO CONFIGURE THE MODEMS AS 
FOLLOWS:
       THE ANSWERING MODEM:
           AT&M3
           ATSO=2S26=50&C1&D1&S1E0Q1&W
       THE ORIGINATING MODEM:
           AT&M3
           ATS26=50&C1&D1&S1E0Q1&W
I HAVE TRIED OTHER MINOR VARATIONS BUT TO NO AVAIL. MY BASIC
PROBLEM IS THAT FOLLOWING THE PROCEDURE ON PAGE 4-12 OF THE 
BOOK FOR ORIGINATING A CALL MY ANSWERING MODEM DOES NOT ANSWER.
     
I HAVE TRIED TWO BASIC SETUPS. ONE IS WITH THE DTE ON THE  
ANSWERING END (AN IBM 4341 USING 3780 RJE) UP (RJE LINE STARTED)
WHICH BRINGS UP THE TR LIGHT ON THE MODEM. WITH THIS SITUATION 
I GET A BUSY SIGNAL WHEN I DIAL THE ANSWERING MODEM. TWO IS WITH
THE RJE LINE DOWN (NO TR LIGHT ON THE ANSWERING MODEM). IN THIS
SITUATION THE ANSWERING MODEM DOES NOT ANSWER. EACH TIME A RING
IS DETECTED BY THE ANSWERING MODEM I CAN SEE THE AA LIGHT DROP
(GO OUT) BUT THE MODEM DOES NOT ANSWER.
       
IF YOU CAN HELP ME WITH THIS PROBLEM PLEASE.....




Rich Pye
Zama Host Administrator
.