wescott@Columbia.NCR.COM (Mike Wescott) (02/12/90)
In article <80@texbell.swbt.com> writes: > We've just installed a 650 with 1 HPSIO card. In trying to attach > a printer to the system, it appears the parallel port does not > use the "standard" PC DB-25 pin outs to Centronics. Does anyone have > the pinouts or should I have bought the cable from NCR in the first > place? I don't intend to discourage you from buying the cable from NCR but the pinout can be found in the Tower Hardware Service Manual. Tower Printer Pin Num - Signal Pin Num 1 - DSTRB/ 1 2 - DSTRB RTN 19 3 - DATA1 2 4 - DATA1 RTN 20 5 - DATA2 3 6 - DATA2 RTN 21 7 - DATA3 4 8 - DATA3 RTN 22 9 - DATA4 5 10 - DATA4 RTN 23 11 - DATA5 6 12 - DATA5 RTN 24 13 - DATA6 7 14 - DATA6 RTN 25 15 - DATA7 8 16 - DATA7 RTN 26 17 - DATA8 9 18 - DATA8 RTN 27 19 - ACK/ 10 20 - ACK RTN 28 21 - BUSY 11 22 - BUSY RTN 29 23 - PERR 12 24 - GND 14 25 - PRT SLCTD 13 -- -Mike Wescott mike.wescott@ncrcae.Columbia.NCR.COM