bin@primate.wisc.edu (Brain in Neutral) (03/09/90)
Ok, I have a Tandy 1100 FD laptop. Now I want to build a cable for the DB-9 RS-232 serial port. What signals are on each of the pins? Anyone know? Paul DuBois Internet: dubois@primate.wisc.edu UUCP: rhesus!dubois FAX: 608/263-4031
jrh@mustang.dell.com (James R. Howard) (03/09/90)
In article <1848@uakari.primate.wisc.edu>, bin@primate.wisc.edu (Brain in Neutral) writes: > Ok, I have a Tandy 1100 FD laptop. Now I want to build a cable for > the DB-9 RS-232 serial port. What signals are on each of the pins? > Anyone know? > It "should" be standard, i.e. compatible with a 9-pin AT serial port. If so, here is the pinout... 9-pin 25-pin Signal In/Out Description ---------------------------------------------------------------------- 1 8 DCD IN Carrier Detect 2 3 RX IN Receive Data 3 2 TX OUT Transmit Data 4 20 DTR OUT Data Terminal Ready 5 7 GND --- Signal Ground (common) 6 6 DSR IN Data Set Ready 7 4 RTS OUT Request to Send 8 5 CTS IN Clear to Send 9 22 RI IN Ring Indicator -------------------------------------------------------------- James Howard ..cs.utexas.edu!dell!mustang!jrh or jrh@mustang.dell.com "I've got a firm policy on gun control, if there's a gun around, I want to be the one controlling it." -- Clint Eastwood --------------------------------------------------------------