Распиновка, расположение выводов и внешний вид последовательного интерфейса:
Serial (SUN)
Available on SUN computers since the SUN3 series (1988) to the current UltraSparc systems
(RS423/RS232)
 (at the computer)
 (at the computer)
25 PIN D-SUB FEMALE at the computer.
    Pin
Name
Dir
Description
    1
n/c
—
 
    2
TXD

Transmit Data
    3
RXD

Receive Data
    4
RTS

Request to Send
    5
CTS

Clear to Send
    6
DSR

Data Set Ready
    7
GND
—
System Ground
    8
DCD

Data Carrier Detect
    9
n/c
—
 
    10
n/c
—
 
    11
n/c
—
 
    12
n/c
—
 
    13
n/c
—
 
    14
n/c
—
 
    15
TRxC

Transmit Clock
    16
n/c
—
 
    17
RTxC

Receive Clock
    18
n/c
—
 
    19
n/c
—
 
    20
DTR

Data Terminal Ready
    21
n/c
—
 
    22
n/c
—
 
    23
n/c
—
 
    24
TxC

Transmit Clock
    25
n/c
—
 
Note: Direction is DTE (Computer) relative DCE (Modem).
    Contributor:
Joakim Цgren
    Source:
SUN SPARCengine Ultra 20 OEM Manual
  Copyright © The Hardware Book Team 1996-2004.
May be copied and redistributed, partially or in whole, as appropriate.
Document last modified: 2002-01-13
