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- From: dave@frackit.UUCP (Dave Ratcliffe)
- Newsgroups: comp.dcom.modems
- Subject: Re: Did I *really* get hardware handshake cable?
- Message-ID: <1429@frackit.UUCP>
- Date: 15 Aug 92 13:59:51 GMT
- References: <1992Jul30.141350.6675@news.acns.nwu.edu> <1992Aug1.140158.13399@rtsg.mot.com>
- Organization: Data Factory Services, Harrisburg, Pa.
- Lines: 42
-
- In article <1992Aug1.140158.13399@rtsg.mot.com>, king@rtsg.mot.com (Steven King, Software Archaeologist) writes:
- > golub@casbah.acns.nwu.edu (Robert Golub) publicly declared:
- > >I ordered a hardware handshaking cable for my new modem, but I'm not sure
- > >how to tell if that's what I got. Is there a way to tell by its appearance?
-
- > >The brand is AESP, model C-28HL-6. The label says "MacPlus, SE, II, 2GS IIC
- > >Plus to 9600 Baud modem. Locking 6' cable".
-
- > By appearance alone: Look on the male end of the cable. Are all 25 pins
- > there? If so, it probably supports the hardware handshaking lines.
-
- Erroneous assumption that can have you talking to yourself within
- minutes. Do NOT assume that because a cable has all pins installed it
- supports them. I have run into molded assembly cables with all pins
- present but NOT connected.
-
- > With an ohmmeter: If you've got an ohmmeter or continutity checker handy,
- > just check to see if pins 4 (RTS) and 5 (CTS) have a connection from
- > end-to-end. If so, you've got hardware handshaking.
-
- THIS is the only way to make sure for a standard DB-25/DB-25 cable.
-
- > Of course, I'm assuming a normal 25 pin DB-25 cable. This has two rows of
- > pins on the connectors, one with 13 and the other with 12 pins. You're
- > using a Mac which is notorious for unusual connectors. I have absolutely
- > no idea whether or not a Mac serial cable uses these connectors.
-
- Only at one end if it's for a modem or other non-Apple serial device. It
- will have a mini-din plug at the CPU end of the cable. Apple just loves
- to have it their way :(
-
- > --
- > -------------------------------------------------------+-----------------------
- > I'm a juggler. I have balls and I know how to | Steven King
- > use them! | Motorola Cellular
- > | king@rtsg.mot.com
-
-
- --
- ...uunet!wa3wbu!frackit!dave -or- | Dave Ratcliffe |
- frackit!dave@uunet.UU.NET -or- dave@frackit.uucp -or- | Sys. <*> Admin. |
- vogon1!compnect!frackit!dave@psuvax1.psu.edu | Harrisburg, Pa. |
-