EVOC PPC-1507, Manual

Page: 26 / 81

Chapter 3 Motherboard Installation
­ 20 ­ PPC­1507
Parallel Port and Serial Port
1. Parallel Port
Standard 26­pin parallel port, it could be used to connect with peripheral
equipment with parallel interface according to requirement.
Pin Signal Name Pin Signal Name
1 STB# 2 AFD#
3 PD0 4 ERR#
5 PD1 6 INIT#
7 PD2 8 SLIN#
9 PD3 10 GND
11 PD4 12 GND
13 PD5 14 GND
15 PD6 16 GND
17 PD7 18 GND
19 ACK# 20 GND
21 BUSY 22 GND
23 PE 24 GND
LPT1
25 SLCT 26 NC
2. Serial Port
COM1 is a 9­pin D­SUB port, which could select RS232/RS422 or
RS485 operation mode via jumper. COM2 is a 2x15pin port. These ports
could be used to connect with mouse, modem and digital camera with
standard RS­232 interface. Their pin definitions are as follows:
Signal Name
Pin
RS­232 RS­422 RS­485
1 DCD1 TX­ DATA­
2 RXD1 TX+ DATA+
3 TXD1 RX+ NC
4 DTR1 RX­ NC
5 GND GND GND
6 DSR1 RTS­ NC
7 RTS1 RTS+ NC
8 CTS1 CTS+ NC
COM1
9 RI1 CTS­ NC