pmech@oucsace.cs.OHIOU.EDU (Paul J. Mech) (11/22/88)
I replaced my old 16b with an NCR MiniTower and, true to my experiences in dealing with Tandy in the last few years, was told by the local service center that there was no pinout for the serial ports, was told by the software people that the service people had it, and was told by the salesmen that they could probably find a technical reference that I could buy. Does anyone out there know the pinout for the 'A' and 'B' serial ports on a 16b? I would assume that they are the same as for the II and the 6000 (dangerous assumption, I know ...)? I want to transfer over the last few source from the 16b, and then, if I can find anyone who wants it, sell it. Thanks in advance, pjm
uhclem@trsvax.UUCP (11/23/88)
<> B>experiences in dealing with Tandy in the last few years, was told by B>the local service center that there was no pinout for the serial ports, B>was told by the software people that the service people had it, and B>was told by the salesmen that they could probably find a technical B>reference that I could buy. Does anyone out there know the pinout for B>the 'A' and 'B' serial ports on a 16b? I would assume that they are B>the same as for the II and the 6000 (dangerous assumption, I know ...)? From the technical reference for the Model II, (yes, the pinout for the Model II/12/16/16B/6000 is the same for channels A & B): Model II/12/16 Attached Device Frame Ground <-> 1 Transmit Data --> 2 Receive Data <-- 3 This is a standard DTE configuration Request To Send --> 4 Clear To Send <-- 5 DataSet Ready <-- 6 Signal Ground <-> 7 Carrier Detect <-- 8 Data Term Rdy --> 20 Xmit S.E.T <-- 15 Not available by default Xmit Clock --> 24 Not available by default Receiver Clock <-- 17 Not available by default This does not apply to the multiterminal ports which are a botched DCE configuration. <Radio Shack is bound to support most of this; it is an EIA standard. Funny... They will support a connector, but not the machine it is bolted to...> "Thank you, Uh Clem." Frank Durda IV @ <trsvax!uhclem> ...decvax!microsoft!trsvax!uhclem ...sys1!hal6000!trsvax!uhclem
iv@hal6000.UUCP (11/24/88)
/* Written 11:46 pm Nov 21, 1988 by oucsace.UUCP!pmech in comp.sys.tandy | ---------- "Pinout of serial port on 16b?" ---------- | [ ... ] Does anyone out there know the pinout for | the 'A' and 'B' serial ports on a 16b? I would assume that they are | the same as for the II and the 6000 (dangerous assumption, I know ...)? | I want to transfer over the last few source from the 16b, and then, if | I can find anyone who wants it, sell it. \* End of text from hal6000:comp.sys.tandy The serial `A' and `B' channels are basically RS-232C, DTE configuration. So, there are a couple of ways to transfer between it and another DTE port. You can take 3 (yes, three) null-modems, put two on one machine and one on the other (you need one on each side so each side thinks it has DCD [carrier] when it raises DTR, and the third re-crosses pins 2/3 and 4/5), and a straight '232 cable between. Or, if you have the kind of null modem you can take apart, and don't mind rewiring, use two and inside one of them, uncross pins 2/3 and pins 4/5. Or, you can build a cable to do the same job, wired like this: Pin Pin 1 <--------> 1 3 <--------> 2 2 <--------> 3 5 <--------> 4 4 <--------> 5 8 <-----+--> 20 | 20 <--+-----> 8 | | 6 <--+ +--> 6 7 <--------> 7 Hope this info helps as well as the pin-out Frank provided. ---- [This information was provided by an individual and is not nor should be construed as being provided by Radio Shack or Tandy Corporation. Radio Shack and/or Tandy Corporation have no obligation to support the information provided, even if it was taken straight from their manual. As usual, if any salesman is caught by a techical question, the staff will disavow any knowledge of past machines. This note will obfuscate in 5 seconds. Good luck, %s.] IV (aka John Elliott IV) Domain: iv@hal6000.Tandy.COM Tandy Systems Software UUCP: ...!killer!sys1!hal6000!iv 1300 Two Tandy Center or: ...!decvax!microsoft!trsvax!hal6000!iv Fort Worth, TX 76102 Phone: 817/390-2701; 9:30am-6:00pm CST