Parallel Port, Serial Ports, Vga - Beckhoff CB1050 Manual

Chapter: Connectors

3.2.2 Parallel port, serial ports, VGA

On the rear panel, there is a combo connector which comprises three DSUB connectors, one for the parallel
port LPT, one for the serial port COM1, and one for VGA signals.
The LPT port is provided via a 25pin DSUB connector (female).
The serial interface COM1 is made available via a 9-pin standard DSUB-connector. According to the
product order, TTL level signals or RS232 standard signals are provided.
The port address and the interrupt are set via the BIOS setup.
The remaining 15pin DSUB connector (female) is used to attach a VGA display.
Pinout parallel port LPT:
Description
strobe
data bit 0
data bit 1
data bit 2
data bit 3
data bit 4
data bit 5
data bit 6
data bit 7
acknowledge
busy
paper end
select
Pinout serial port (DSUB connector):
Description
data carrier detect
receive data
transmit data
data terminal ready
ground
page 22
Name Pin
STB# 1
PD0 2
PD1 3
PD2 4
PD3 5
PD4 6
PD5 7
PD6 8
PD7 9
ACK# 10
BUSY 11
PE 12
SLCT 13
Name Pin
DCD 1
RXD 2
TXD 3
DTR 4
GND 5
Name
14 AFD#
15 ERR#
16 INIT#
17 SLIN#
18 GND
19 GND
20 GND
21 GND
22 GND
23 GND
24 GND
25 GND
Name
6 DSR
7 RTS
8 CTS
9 RI
Beckhoff New Automation Technology CB1050
Back Panel Connectors
Description
auto feed
error
initialize
select in
ground
ground
ground
ground
ground
ground
ground
ground
Description
data set ready
request to send
clear to send
ring indicator