??? US Rob MAC&FAX and Z-Term 0.9 CONFLICT! ???
David Chou
I don't know if I am the only one who has this problem or not, but
with my Mac&Fax 14.4 Data/Fax Modem and Zterm 0.9 running on a Mac SE with
4 megs of RAM and System 6.08, I continually lose my carrier signal whenever
I have an extended scroll of text, be it when I "cat" some large file, when
I'll scrolling through lists of channels under IRC , or whatever. Basically,
when I attempt to do the above, the DTR and RTS lights go off on the modem,
followed shortly by a NO CARRIER message from the program. I'm not so sure
whether this is a problem with the modem, the modem cable (I'm using the
one which came with the modem package), or the settings vis a vis the AT
commands, of which I'm not too familiar with. Does anyone have any idea of
what I'm talking about, or am I nuts? :) If anyone can help, I'd greatly
appreciate it. Thank you.
Sincerely,
David Chou
--
This Is Not A Love Song...
-PIL
I'm here, you're there, but you can reach me:
dc...@husc8.harvard.edu
Grant R. Bowman
are in the cable, mostly.
The carrier detect pin is not hooked up at all. I asked USR about this
and they told me to buy a new cable. This is not a big deal for users, but
for sysops, it's monumental.
The problem you are experiencing is also due to the cable. The
hardware handshake cable is cross-wired. For anyone that cares, the people
at USR said the cable is set up this way:
Mac function Mac pin DB-25 pin RS-232 function
------------ ------- --------- ---------------
RxD (receive) 5 3 receive data
TxD (transmit) 3 2 transmit data
Ground 4&8 7 Ground
HSKi 1 4&20 CTS & DTR
HSKo 2 5 RTS
I think this is the way it works. I am not sure about the last two
but it something close. I know the pinouts are correct, but I am not sure
about the rs-232 function.
In any case: it means that you need to do everything you can
to disable DTR and CD. This includes settings in programs, NVRAM, and dip
switches.
This works for me. I just set up my NVRAM to set up everything
correctly, and just let the programs initialize by giving atz which resets
the NVRAM settings. (NVRAM = non-volatile RAM)
It seems that you now have the DTR or data terminal ready enabled.
So, when the hardware handshake says stop data, it also pulls on the DTR
pin on the modem side, and hangs up. I think that's why it won't work.
The carrier detect is just a way for the modem to tell the computer
by hardware that the connection is down. This is crucial for sysops since
their modem are unattended, but not a big deal for people who just turn
off thier modem to reset it and hang up.
I think this is correct. My sources are USR and a paper by Maury
Markowitz of SoftArc (makers of FirstClass OIS (online info system) software).
If there is interest, I can post this paper. If others have comments, I
would love to discuss it.
Cheers,
>-------------------------------------------------------------------------<
Grant Bowman Delta Sigma Phi, Technology Task Force
gran...@netcom.com All hardware is worthless. --Torque Systems
Chih-Ping C Sobelman
It sounds like you're using hardware flow control (RTS/CTS), which uses the
DTR line on the Mac because its serial port has only 8 pins. You have to
tell the modem to ignore a change in DTR. Try AT&D0, if the "Mac&Fax"
follows the usual command conventions, or check the manual.
Also check your &Q[x] setting, which in combination with &D[x] tells the
modem what to do if there's a change in DTR. Most setting pairs make the
modem hang up if DTR is dropped.
-Mike
Dave Alverson
> I don't know if I am the only one who has this problem or not, but
>with my Mac&Fax 14.4 Data/Fax Modem and Zterm 0.9 running on a Mac SE with
>4 megs of RAM and System 6.08, I continually lose my carrier signal whenever
>I have an extended scroll of text, be it when I "cat" some large file, when
You need to tell your modem to ignore DTR. Usually its AT&D0.
-- Dave
--
Z Dave Alverson, da...@xetron.com
Dave Alverson
Message-ID: <C8MG4...@xetron.com>
Organization: Xetron Corporation, Cincinnati, Ohio
Date: Mon, 14 Jun 1993 17:19:43 GMT
In article <1993Jun12.1...@husc3.harvard.edu> dc...@husc7.harvard.edu (David Chou) writes:
>Dear Net,
> I don't know if I am the only one who has this problem or not, but
>with my Mac&Fax 14.4 Data/Fax Modem and Zterm 0.9 running on a Mac SE with
>4 megs of RAM and System 6.08, I continually lose my carrier signal whenever
>I have an extended scroll of text, be it when I "cat" some large file, when
You need to tell your modem to ignore DTR. Usually its AT&D0.
-- Dave
--
Z Dave Alverson, da...@xetron.com
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Chih-Ping C Sobelman
Message-ID: <1993Jun14.0...@news.columbia.edu>
Reply-To: Not_by_email
Organization: CONTROL
Date: Mon, 14 Jun 1993 02:53:46 GMT
In article <1993Jun12.1...@husc3.harvard.edu> dc...@husc7.harvard.edu (David Chou) writes:
It sounds like you're using hardware flow control (RTS/CTS), which uses the
DTR line on the Mac because its serial port has only 8 pins. You have to
tell the modem to ignore a change in DTR. Try AT&D0, if the "Mac&Fax"
follows the usual command conventions, or check the manual.
Also check your &Q[x] setting, which in combination with &D[x] tells the
modem what to do if there's a change in DTR. Most setting pairs make the
modem hang up if DTR is dropped.
-Mike
Fang Feng
Date: 14 Jun 1993 17:38:13 GMT
Organization: Computer Science Department, Texas A&M University
Message-ID: <1vid25$h...@tamsun.tamu.edu>
Dear netters:
Last week, when I ran a software, my screen was locked. So
I have to restart my system by turning it off and on again. The
strange thing is that icons for some of the softwares which was
open when the incident happened were all changed to a diamond
shape with a hand (I guess this is the system standard icon).
These softwares include Fetch, Tiger, Scanner, etc. I don't know
how to restore their original icons. Could anyone help me out?
Thanks in advance.
Fang
--
====================================================
Department of Computer Science, Texas A&M University
internet: ff...@cs.tamu.edu
====================================================
Martijn Plak
Message-ID: <10...@charon.cwi.nl>
Date: 14 Jun 93 08:37:47 GMT
Organization: CWI, Amsterdam
Hi!
I am really disappointed: as of issue 14 the develop quarterly journal does not include the develop cd. It contains the bookmark cd. Because of this I will no longer have access to Inside Mac in digital form, and to the system files.
For me, the online inside mac was one of the main reasons to subscribe. Caroline (Rose) writes the value of the software on the cd was too high. That may be so, but I think Apple should make the docs to the system software available to people. I like the on-line supplement to the books.
Is anyone else disappointed or pissed? It sure did spoil my day.
Jamie Allen
Message-ID: <1993Jun14....@spuddy.uucp>
Organization: Spuddy's Public Usenet Domain
Date: Mon, 14 Jun 1993 09:07:04 GMT
Greetings, mac gurus.
Another simple question (I hope). Having just bought a MAC plus,
I've just purchased a laser printer to go with it. The printer is
a RX7100 page printer that emulates an HP laserjet 2 etc. I'm having
one or two problems getting the MAC to talk to it. The only 'drives'
I have on the mac are 'laserwriter' and 'imagewriter'. What do I need
to get started ? What is appletalk ?? Help !
[Ignorant new user....]
Many thanks in advance.
Jamie.
--
*Purr! Spuddy says* ja...@spuddy.uucp *"I'm in the mood for
*call 0203 362560 * !uunet!mcsun!uknet!spuddy!jamie * a good fight, but am
*for FREE Usenet * * personally opposed to
*access in the UK.* For more info send a blank mail * senseless violence."
*Call her NOW !!! * to in...@spuddy.uucp * (Garfield)
Bob Matsuoka
Message-ID: <1993Jun14.0...@news.columbia.edu>
Date: 14 Jun 93 05:31:52 GMT
Reply-To: bm...@cunixf.cc.columbia.edu (Bob Matsuoka)
Organization: Columbia University
The New Laboratory for Teaching and Learning invites qualified professionals
to apply for the positions listed below. Candidates should be highly
motivated self-starters with a background in education and experience using
networked Macintosh and PC microcomputers, and have a strong desire to help
shape the future of education.
High School Divisional Technology Coordinator
Middle School Divisional Technology Coordinator
. oversee integration of new technology into school curriculum in close
coordination with school faculty and New Laboratory staff
. develop strategies for the effective use of networked multimedia in a
progressive educational environment
. coordinate student/faculty training in new technologies and innovative
curricula
. work with faculty in the the design and implementation of
technology-based curriculum projects
Technology Support Specialist
. install and maintain microcomputers and peripherals
. develop and maintain equipment inventory
. oversee software installation and upgrade
. provide site-wide technical support for ongoing New Laboratory
initiatives
Please send letter of application and resume to:
Susan Schwarz
New Laboratory for Teaching and Learning
The Dalton School
108 East 89th Street
New York, NY 10128
nl...@applelink.apple.com
--------------------------------------------------------------------------
Bob Matsuoka, Network Manager bm...@columbia.edu
New Lab for Teaching and Learning ph. (212) 722-5160 x152
The Dalton School fax (212) 348-5885
Rich Long
In article <7333.8...@hal9k.com>, martij...@hal9k.com (Martijn Plak) writes...
>I am really disappointed: as of issue 14 the develop quarterly journal does
>not include the develop cd. It contains the bookmark cd. Because of this I
>will no longer have access to Inside Mac in digital form, and to the system
>files.
I've heard that due to the large volume of complaints about this issue
the Inside Mac stacks will be going back onto the CD; however, the system
software will stay off.
You can try asking over on Comp.sys.mac.programmer for details.
Rich
+-----------------------------------------------------------------------------+
Richard C. Long | lo...@mcntsh.enet.dec.com
"Perhaps I'll take two aspirin and go | ...!decwrl!mcntsh.enet.dec.com!long
lie down under a tree." -- Frank Burns | long%mcnts...@decwrl.enet.dec.com