Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!asuvax!ncar!elroy.jpl.nasa.gov!lll-winken!ames!uhccux!uhunix1.uhcc.Hawaii.Edu!robin From: robin@uhunix1.uhcc.Hawaii.Edu (Robin Amano) Newsgroups: comp.sys.ibm.pc.hardware Subject: Re: modem help needed Message-ID: <11225@uhccux.uhcc.Hawaii.Edu> Date: 31 Jan 91 19:44:27 GMT References: <5832@idunno.Princeton.EDU> Sender: news@uhccux.uhcc.Hawaii.Edu Distribution: comp Organization: University of Hawaii Lines: 38 In article <5832@idunno.Princeton.EDU> dondaing@phoenix.Princeton.EDU (Don Aingworth) writes: >I have a mac modem that I would like to hook up to an ibm using the >comm port. I know what the pins are on the ibm, but can somebody tell >me what each pin does on one of those little round mac connectors. Does >anybody have any experience trying to do this? Please respond using >mail, and I'll post any results. > >thanks in advance, >don. MAC Modem and printer ports 8 7 6 1 HSKo Handshake out | | | 2 HSKi Handshake in/external clk. [] [] [] 3 TXD- Transmit data - 4 GND Signal Ground [] [] [] 5 RXD- Receive data - | | | 6 TXD+ Transmit data + | [] | [] | 7 GPi General Purpose input* | | | | | 8 RXD+ Receive data + 5 | 4 | 3 | | * Modem port only; can be set in software 2 1 to be a second external clock Looking at back of computer (female) We normally use only 1,3,4 & 5 -- -------------------------------------------------------- Robin Amano | robin@uhunix.uhcc.hawaii.edu UHCC | 2565 The Mall | Honolulu, HI 96822