W8SDZ@Simtel20.ARPA (09/09/84)
From: Keith Petersen <W8SDZ@Simtel20.ARPA> MX-SM13A.ASM for MEX is now available from SIMTEL20: Filename Type Bytes CRC MICRO:<CPM.MEX> MX-SM13A.ASM.1 ASCII 9335 1E83H The author of this update explains his changes in a message to Ron Fowler: Msg 132 is 12 line(s) on 09/08/84 from BOB SANDEL to RON FOWLER about MODIFIED SM-13 TO STOP HANGUPS Ron, Although the SM-13 overlay worked quite well for me with MEX10, I started experiencing a lot of Anchor XII hangups when I implemented MEX111. Seems like MEX111 is too fast to allow a proper disconnect of the Anchor. I experimented and have U/L MX-SM13A (A for Anchor) which has added 3 CALLs to DISCON before turning control back to MEX111. Seems to works a lot better for me---let's see how others do with the alteration. I speeded up the DISCON times to 1.2 seconds from 2.0 seconds. Still having some difficulty recogninzing a Control C when in the auto-repeat dial mode. Currently only about 50% effective. Thx for a powerful modem executive. Bob
W8SDZ@Simtel20.ARPA (09/09/84)
From: Keith Petersen <W8SDZ@Simtel20.ARPA> Thanks to Alex for this further fix for the Anchor modem. --Keith Date: Sunday, 9 September 1984 09:03-MDT From: Alexander M. Fraser <T.ALEX%MIT-EECS at MIT-MC.ARPA> To: W8SDZ at SIMTEL20.ARPA cc: RFowler at SIMTEL20.ARPA Re: New MX-SM13A overlay for MEX/Anchor XXII modem (Please forward this to Bob Sandel to please, since I don't know his net address if any) The problem is that there is no pause between the ''+''s. The Anchorman has either a bug, or a safeguard that if the +s pass through at full speed (as they would in an ESC+T type transfer), the modem ignores them. I put in a patch to call a delay of 6 in the timer sequence between the ''+''s and doubled all the other delays in the disconnect sequence and it works at least 95% of the time. The way to solve the ^C problem is that the Anchorman will not abort on (CR), it needs an A. I modified it to send (CR), pause, ''A'', pause, ''T'', pause and then (CR). Works all the time, except while the Anchorman is still sending back the numbers (ie still dialing) (the Anchorman echoes each character back as it is dialed). Another thing that should be down with the MEx overlay is to increase the timeout (which is default 60 seconds). Since the Anchorman waits 36 seconds before hanging up and some ALD pauses coul make up the rest to 60, sometimes it times-out too soon.
STEVEH@mit-mc.ARPA (09/10/84)
From: "Stephen C. Hill" <STEVEH@mit-mc.ARPA> I have been having the same problem with my Hayes modem. I thought that it may have been an inconsistancy because I am running a 5MHz Lobo Max-80 (even after changing the CLOCK variable. I have been able to get the modem to disconnect if I use the following command string: "DSC;SLEEP 1;DSC".