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From: corem@pro-greens.benton-city.wa.us (Chuck Orem)
Subject: SupraFAXModem and PT3.1
Sender: usenet@clark.edu
Date: 27 Feb 94 19:39:13 GMT 
Organization: Pro-Greens BBS (509) 588-3519
Message-ID: <1994Feb27.123913.1334@pro-greens.benton-city.wa.us>
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Folks,
	In the past, I've seen posts on this newsgroup concerning
SupraFAXModems and that they have a bad habit of hanging up unexpectedly.
I've always attributed this to operator error, but when I put one on my GS
and it started happening to me, that was a different story entirely (of
course) <g>.

	Anywho, I think we can blame the init string in PT3.1 for this one, in
their default init string the &D2 command was active in conjunction with
&Q0, which caused the modem to "Disconnect and return to command state"
during a on to off transition of DTR. (RE: Page 37 of the SupraFAXModem
Reference manual)

        The cable that InTrec recommends for a GS hardware handshaking cable
has the modems RTS and DTR lines (4 & 20) tied together with the ports output
handshake signal, so when the signal would go low to stop data flow, DTR
would also go low (off) and the modem would disconnect.

	My modified string below, avoids this and seems to work reasonably
well.

My modified string:

AT&F1E0W1S11=65S36=5

ACTIVE PROFILE:
B1 E0 L2 M1 N1 Q0 T V1 W1 X4 Y0 %C1 %E0 %G1 \N3 &C0 &D0 &K3 &Q5 &R0 &S0 &X0
&Y0 S00:000 S01:000 S02:043 S03:013 S04:010 S05:008 S06:002 S07:050 S08:002
S09:006 S10:014 S11:065 S12:050 S18:000 S23:063 S25:005 S26:001 S36:005
S37:000 S38:020 S40:087 S46:138 S48:007 S95:000 S109:062 S110:002

ProTerm 3.1's default string:

ATX4&K3W1S11=65S36=5

ACTIVE PROFILE:
B1 E0 L2 M1 N0 Q0 T V1 W1 X4 Y0 %C1 %E0 %G1 \N1 &C1 &D2 &K3 &Q0 &R0 &S0 &X0
&Y0 S00:000 S01:000 S02:043 S03:013 S04:010 S05:008 S06:002 S07:099 S08:002
S09:006 S10:014 S11:065 S12:050 S18:000 S23:061 S25:005 S26:001 S36:005
S37:000 S38:020 S40:085 S46:138 S48:007 S95:000 S109:062 S110:002


						Chuck Orem

Internet: corem@pro-greens.benton-city.wa.us    c.orem@genie.geis.com
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