Распиновка, расположение выводов и внешний вид последовательного интерфейса:
EIA-449 (RS-449) Secondary
Common names: EIA-449, RS-449, ISO 4902
Secondary (auxilary) channel
(at the Computer)
PinNameRS232V.24DirDescription
1
n/a
101
Shield
2
SSR
SRR
122
Secondary Receiver Ready
3
SSD
SSD
118
Secondary Send Data
4
SRD
SRD
119
Secondary Receive Data
5
SG
SG
102
Signal Ground
6
RC
RC
102b
Receive Common
7
SRS
SRS
120
Secondary Request To Send
8
SCS
SCS
121
Secondary Clear To Send
9
SC
SC
102a
Send Common
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:
RS449 Page made-it.com/CKP/rs449.html at Connectivity Knowledge Platform (Made IT)
Copyright © The Hardware Book Team 1996-2004.
May be copied and redistributed, partially or in whole, as appropriate.
Document last modified: 2002-01-10