Распиновка, расположение выводов и внешний вид последовательного интерфейса:
Serial (PC 9)
Also known as EIA/TIA 574
(at the Computer)
9 PIN D-SUB MALE at the Computer.
Pin
Name
RS232
V.24
Dir
Description
1
CD
CF
109
Carrier Detect
2
RXD
BB
104
Receive Data
3
TXD
BA
103
Transmit Data
4
DTR
CD
108.2
Data Terminal Ready
5
GND
AB
102
System Ground
6
DSR
CC
107
Data Set Ready
7
RTS
CA
105
Request to Send
8
CTS
CB
106
Clear to Send
9
RI
CE
125
Ring Indicator
Note: Direction is DTE (Computer) relative DCE (Modem).
Note: RS232 column is RS232 circuit name.
Note: V.24 column is ITU-TSS V.24 circuit name.
Contributor:
Joakim Цgren
Source:
?
Copyright © The Hardware Book Team 1996-2004.
May be copied and redistributed, partially or in whole, as appropriate.
Document last modified: 2002-01-10