Распиновка, расположение выводов и внешний вид последовательного интерфейса:
SUN LX/Classic/SS4/5/10/20 Serial Port
This port is located in not-so modern SUN Sparcs such as SUN
LX/Classic/SS4/5/10/20 and has both serial ports (A/B) in the same connector.
Simply plugging in a regular serial cable in results in accessing port A.
(at the computer)
25 PIN D-SUB FEMALE at the computer.
Pin
Name
Port
Dir
Description
2
TXD
A
Transmit Data
3
RXD
A
Receive Data
4
RTS
A
Request to Send
5
CTS
A
Clear to Send
6
DSR
A
Data Set Ready
7
GND
—
—
System Ground
8
CD
A
Carrier Detect
11
DTR
B
Data Terminal Ready
12
CD
B
Carrier Detect
13
CTS
B
Clear to Send
14
TXD
B
Transmit Data
15
TC
A
Transmit Clock from DCE, usually not used
16
RXD
B
Receive Data
17
RC
A
Receive Clock from DCE, usually not used
18
TC
B
Transmit Clock from DCE, usually not used
19
RTS
B
Request to Send
20
DTR
A
Data Terminal Ready
21
TCO
A
Transmit Clock from DTE, usually not used.
25
TCO
B
Transmit Clock from DTE, usually not used.
Note: Direction is DTE (Computer) relative DCE (Modem).
Note: Do not connect SHIELD(1) to GND(7).
Contributor:
Niklas Edmundsson
Source:
SUN Field Engineer Handbook, VolumeII, 12/15/93
Copyright © The Hardware Book Team 1996-2004.
May be copied and redistributed, partially or in whole, as appropriate.
Document last modified: 2002-01-13