keegan-edward@CS.Yale.EDU (Edward Keegan) (12/15/89)
Can anyone provide the pin assignments (both the DIN connector and
RS232 DB25 connector) of the MAC modem cable? Thanks in advance...
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+-----------------------------+-------------------------------------+erico@tekcae.CAX.TEK.COM (Eric Oosterhof) (12/31/89)
MacUser, January 1990 discussed re-wiring a modem cable for use with high speed modems. Included in that article is a shematic of the changes needed to adapt the current cable. Use this as a guide for making your modem cable. They say you can still use the adapted cable with a slow modem. Words to the effect of the schem: DIN 8 pin number 25 pin D pin number 1 20 2 5 3 2 4 7 5 3 The adaptation for high-speed modems, cut the 1 to 20 wire, replace with a 1 to 4 wire. Enjoy... P.S. I just purchased a modem cable with 8 pin DIN connector, plugged it into my 9 pin DIN connector on a Mac Plus. It works so far (10 minutes or so). Anyone know of any problems related to this arrangement? erico@tekcae.CAX.TEK.COM | oostere@ure.CS.ORST.EDU ---------------Eric Oosterhof----------------------- Ready for employment, start date, mid June, 1990. BS in C.S., experience in C, Equel/C, PASCAL, others. E-Mail or mail 8885 SW Hillsboro Hwy, Hillsboro, OR. 97123 for references. ====================================================
ostroff@oswego.Oswego.EDU (Boyd Ostroff) (01/01/90)
I was looking through the new JAMECO catalog the other day and noticed the
following cables which might be of general interest:
Cat #.....Description............................1-9......10-99
APC2......modem cable (DB-25 to mini DIN)........4.95.....3.95
MAC1......null modem cable (DB-25 to mini DIN)...5.95.....4.95
APC3......printer cable (mini DIN to mini DIN)...4.95.....3.95
APC4......adapter cable (mini DIN to DB-9 F).....5.95.....4.95
JAMECO can be reached at (415) 592-8097. These look like very good prices
to me, compared to the typical $20 computer-store price for a cable.
DISCLAIMER! I have never bought one of these cables, so I can't speak for
the quality, although I have been pleased with JAMECO in the past and
believe them to be a reputable company.
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ostroff@oswego.Oswego.EDU ...!rutgers!rochester!kodak!gizzmo!cboard!ostroff svc@well.UUCP (Leonard Rosenthol) (01/01/90)
In article <5270@tekgen.BV.TEK.COM> erico@tekcae.CAX.TEK.COM (Eric Oosterhof) writes: >MacUser, January 1990 discussed re-wiring a modem cable for use >with high speed modems. Included in that article is a shematic >of the changes needed to adapt the current cable. Use this as a >guide for making your modem cable. They say you can still use >the adapted cable with a slow modem. Words to the effect of the >schem: > > [ cable pinouts removed to make inews happy ] > This cable that they describe is what is known as a Hardware Handshaking cable as it is wired to provide the use of RTS/CTS (or in this case DTR/CTS) for flow control (instead of the software initiated XON/XOFF). This cable can most certainly be used with any modem, fast or slow, and if you comm program support hardware handshaking (most do) you will see some speed improvements. One note is that if you are trying to run a BBS on the Mac, DO NOT use this cable as a BBS will require use of the DCD line, and this cable does not use it they same way... -- +--------------------------------------------------+ Leonard Rosenthol | GEnie : MACgician Lazerware, inc. | MacNet: MACgician UUCP: svc@well.UUCP | ALink : D0025