MSI IM945GSED User Guide - Page 43

Serial Port Connector: COM1 ~ COM4, Parallel Port Header: JLPT1

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Hardware Setup Serial Port Connector: COM1 ~ COM4 (for option A, B, C, E) This connector is a 16550A high speed communications port that sends/receives 16 bytes FIFOs. You can attach a serial device to it through the optional serial port bracket. COM1~4 1 2 9 10 Pin Definition PIN SIGNAL DESCRIPTION 1 DCD Data Carry Detect 2 SIN Serial In or Receive Data 3 SOUT Serial Out or Transmit Data 4 DTR Data Terminal Ready 5 GND Ground 6 DSR Data Set Ready 7 RTS Request To Send 8 CTS Clear To Send 9 VCC_COM PowerSource Parallel Port Header: JLPT1 The mainboard provides a 26-pin header for connection to an optional parallel port bracket. The parallel port is a standard printer port that supports Enhanced Parallel Port (EPP) and Extended Capabilities Parallel Port (ECP) mode. JLPT1 26 25 2 1 PIN SIGNAL 1 RSTB# 3 PRND0 5 PRND1 7 PRND2 9 PRND3 11 PRND4 13 PRND5 PIN SIGNAL 2 AFD# 4 ERR# 6 PINIT# 8 LPT_SLIN# 10 GND 12 GND 14 GND PIN SIGNAL 15 PRND6 17 PRND7 19 ACK# 21 BUSY 23 PE 25 SLCT PIN SIGNAL 16 GND 18 GND 20 GND 22 GND 24 GND 26 KEY 2-15

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2-15
Hardware Setup
Serial Port Connector: COM1 ~ COM4
(for option A, B, C, E)
This connector is a 16550A high speed communications port that sends/receives 16
bytes FIFOs. You can attach a serial device to it through the optional serial port
bracket.
PIN
SIGNAL
DESCRIPTION
1
DCD
Data Carry Detect
2
SIN
Serial In or Receive Data
3
SOUT
Serial Out or Transmit Data
4
DTR
Data Terminal Ready
5
GND
Ground
6
DSR
Data Set Ready
7
RTS
Request To Send
8
CTS
Clear To Send
9
VCC_COM
Power Source
Pin Definition
Parallel Port Header: JLPT1
The mainboard provides a 26-pin header for connection to an optional parallel port
bracket. The parallel port is a standard printer port that supports Enhanced Parallel
Port (EPP) and Extended Capabilities Parallel Port (ECP) mode.
PIN
SIGNAL
PIN
SIGNAL
1
RSTB#
2
AFD#
3
PRND0
4
ERR#
5
PRND1
6
PINIT#
7
PRND2
8
LPT_SLIN#
9
PRND3
10
GND
11
PRND4
12
GND
13
PRND5
14
GND
PIN
SIGNAL
PIN
SIGNAL
15
PRND6
16
GND
17
PRND7
18
GND
19
ACK#
20
GND
21
BUSY
22
GND
23
PE
24
GND
25
SLCT
26
KEY
2
1
26
25
JLPT1
COM1~4
1
9
2
10