Распиновка, расположение выводов и внешний вид последовательного интерфейса:
Serial (Printer)
(at the printer)
25 PIN D-SUB MALE at the printer.
Pin
Name
Dir
Description
1
SHIELD
Shield Ground
2
TXD
Transmit Data
3
RXD
Receive Data
4
n/c
—
Not connected
5
n/c
—
Not connected
6
DSR
Data Set Ready
7
GND
System Ground
8
DCD
Data Carrier Detect
9
n/c
—
Not connected
10
n/c
—
Not connected
11
?
Reverse Channel
12
n/c
—
Not connected
13
n/c
—
Not connected
14
n/c
—
Not connected
15
n/c
—
Not connected
16
n/c
—
Not connected
17
TTY-TXD
TTY Receive Data
18
n/c
—
Not connected
19
n/c
—
Not connected
20
DTR
Data Terminal Ready
21
n/c
—
Not connected
22
n/c
—
Not connected
23
?
TTY Receive Data Return
24
?
TTY Transmit Data Return
25
TTY-RXD
TTY Receive Data
Contributor:
Joakim Цgren,
Petr Krc
Source:
?
Copyright © The Hardware Book Team 1996-2004.
May be copied and redistributed, partially or in whole, as appropriate.
Document last modified: 2002-01-13