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#PC Spits at AMIGA

12 messages in this thread

#28208From: Kip KedershaMar 27, 1993 9:38 PM

I am trying to connect my PC to My 2000. I have modem cable running from the PC COM1 to the 2000 Serial port. I have Telix and the only I thing I could find for the Amiga was JR-COMM. What do I do now or do I have to start over? I want to transfer Image files from the PC to the Amiga's ADPro. I have been doing it with CrossDos…but will now begin to conserve time. Thanks.

#28212From: Jonathan BlackwellMar 28, 1993 12:39 AM

You must have a null modem adaptor connected to your modem cable. -Jonathan

#28216From: Christopher LapriseMar 28, 1993 1:12 AM

You have to use a null-modem adaptor when you connect two PCs directly via their serial ports. -Chris

#28218From: Wayne ColeMar 28, 1993 1:41 AM

Kip, Been a while since I've connected two bare computers with no modem in between, but as I recall, you'll need a NULL modem cable first off. I think what that does is "twist" a couple of lines for handhsaking purposes – so the out on onw is sure to go to the in on the other – clear as mud, I know! :^} Then the software on both ends will have to be capable of direct connection/null modem operation/software handshaking. I believe the terminal products from MSS on the Amiga handle that kind of operation, but I'm not sure about JR-Comm as I've not used it expcetp to try it out a few years ago. On the PC, we used to do it with smartterm 240 and procomm. wmc – via Autopilot!

#28235From: Kip KedershaMar 28, 1993 11:51 AM

That's right! I remember about the Null-modem cable now…okay I'll do that Then I guess it's software finagling time. Thanks

#28519From: WES ROBBINSApr 4, 1993 11:45 AM

Hi Kip: If you want to make your own Null-modem cable try one of these… Pin 1..Ground…………….to pin 1 Ground (optional) pin 2..TD…………………..3 RD pin 3..RD…………………..2 TD pin 6..DSR………………….20 DTR pin 7..signal ground…………7 signal ground pin 20 DTR………………….6 DSR Jumper pins 5,6,8 together at both connectors. Use 25 pin EIA connectors male or female depending on you computer. ****The above cable uses hardware handshake***** For no hardware handshake leave out the 6 to 20 and 20 to 6 pin connections and jumper pins 5,6,8,20 at both connectors. This info is from a serial cable guide for PCs. You should check your documentation to insure the above terms (TD,RD,DSR,DTR,Gnd,and signal Gnd) match the pins numbers……………Wes Via Amiga A2000 and Whap! navigation program

#28238From: Jody WinninghamMar 28, 1993 2:20 PM

Kip, I have the same that I do with my DX2 and my Amiga 500. Sounds like your problem is that you need to get a NULL Modem Adapter (FROM RAdION SHACK or wherever) Connect the NULL modem adapter to one end (ends don't matter) That will get you going hardware wise. Software wise, set up telix for whatever com port your serial cable to the amiga is on. ( I don't know if telix has a DIRECT CONNECT entry if so just ensure it is set for the com port going to AMIGA) . Set baud rate to 19.2K LOCKED on both the IBM and AMIGA (with JR Comm use the right mouse button drag down the top window bar and click on serial) And you should be good to go. I STRONGLY Recommend that you use ZMODEM transfers since there is no error correcting hardware involved (ie V32bis, V42bis modems) and that should get you good to go. If you want to try to get even more speed between transfers then lock the ports to 38.4 altho I have experienced some lock ups on the Amiga side when I did. Hope that helps Jody Winningham – Broadcast BBS – (803)760-9630 2400-14.4K 1:372/71 Fido

#28426From: Kip KedershaApr 1, 1993 4:36 PM

Thanks Jody. I ended up getting ATALK III and I can boogie at 57,600 with Telix. Thanks for the response.

#28429From: SyndesisApr 1, 1993 6:31 PM

TwinExpress is very nice… your PC could also benefit from a serial card with an enhanced serial chip like the 16450, especially if it's a 486. It makes high-speed (> 9600) transfers much more robust, or simply even possible, on some systems.

#28269From: Jim SakladMar 28, 1993 7:59 PM

kip – Try Twin Express, an Amiga<->MS-DOS or Amiga<->Amiga null-modem transfer system. AmigaUser library 5. TNXA11.LZH/Bin Bytes: 57446 Title : Twin Express 1.1a Serial File Transfer Program Keywords: FILE TRANSFER SERIAL REMOTE BACKUP IBM Twin Express 1.1a (Amiga) is a serial file transfer program. Features transfer speed of about 22,000 bytes/second, compatibility between Amiga and IBM version (with translation of text files), DOS-like commands, support for wildcards & subdirectories, on-line help, error detection & correction, etc. Corrects a bug in version 1.1. Shareware from Omnicode. You _will_ need a null modem and cable, but the cable only costs about $9 and the null modem not much more. . . . . JimDoc, on AutoPilot

#28427From: Kip KedershaApr 1, 1993 4:37 PM

Thanks for the response. I will try Twin Express, although I just bought ATALK III and I can jam at 57,600 with Telix on the PC. Thanks again.

#28290From: Denny Atkin [COMPUTE/AmiMar 29, 1993 7:12 AM

Kip, You need a null-modem cable or adapter box. You can pick one up at Radio Shack. After you get this, you can use your terminal program to transfer files, but I'd suggest searching the Amiga Forums for a program called Twin Express. It's a LapLink-like file transfer program that's great for tying together Amigas and PCs.