Справочная информация и описание кабеля
Nullmodem (25-25)
Use this cable between two DTE devices (for instance two computers).
(To Computer 1).
(To Computer 2).
25 PIN D-SUB FEMALE to Computer 1.
25 PIN D-SUB FEMALE to Computer 2.
D-Sub 1
D-Sub 2
Receive Data
3
2
Transmit Data
Transmit Data
2
3
Receive Data
Data Terminal Ready
20
6+8
Data Set Ready + Carrier Detect
System Ground
7
7
System Ground
Data Set Ready + Carrier Detect
6+8
20
Data Terminal Ready
Request to Send
4
5
Clear to Send
Clear to Send
5
4
Request to Send
Note: DSR & CD are jumpered to fool the programs to think
that they are online.
Contributor:
Joakim Цgren,
Drew Sullivan,
Niklas Edmundsson,
Don Rifkin,
Richard Marker
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