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Parallel Interface LPT Chapter: Connectors

Beckhoff New Automation Technology CB4051 page 31

4.12 Parallel Interface LPT

The parallel interface is a standard IDC socket connector with a spacing of 2.54 mm. The port address

and the interrupt are set via the BIOS setup.

The parallel port may be selected in BIOS-setup to interface to a standard PC floppy drive, but a special

cable is required for such operation. Please contact your sales representative for such a cable.

Pinout LPT interface (FDC signals in brackets):

Description Name Pin Name Description

strobe STB# 1 2 AFD#

(DRVDEN0)

automatic line feed (drive

density 0)

LPT data 0 (Index) PD0 (IDX#) 3 4 ERR#

(HDSL#)

error (head select)

LPT data 1 (track 0) PD1 (TR0#) 5 6 INIT# (DIR#)

init (direction)

LPT data 2 (write protect) PD2

(WPRT#)

7 8 SLIN#

(STP#)

select input (step)

LPT data 3 (read data) PD3

(RDATA#)

9 10 GND ground

LPT data 4 (disk change) PD4 (DC#) 11 12 GND ground

LPT data 5 PD5 13 14 GND ground

LPT data 6 (motor 0) PD6 (MT0#) 15 16 GND ground

LPT data 7 (drive select 0) PD7 (DR0#) 17 18 GND ground

acknowledge (drive select 1) ACK#

(DR1#)

19 20 GND ground

busy (motor 1) BUSY

(MT1#)

21 22 GND ground

paper end (write data) PE (WD#) 23 24 GND ground

select printer (write enable) SLCT (WG#)

25 26 VCC 5 volt supply

1 2 ... 26 27 28 29 30 31 32 33 34 35 36 ... 69 70

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Beckhoff CB4051 Bedienungsanleitung Seite 31