2 Installation
K0470 Revision A
2 - 12
[EN] English
Table 2-1, RS232 Connections
Handshaking connections
Software handshaking use: TXD, RXD and GND.
Hardware handshaking use: TXD, RXD, GND, CTS, RTS and DTR.
Instrument
Control Line
Computer/Printer
Instrument
Function
Connector
9-way
D-type
Pin No.
Signal
Direction
RS232
Terminology
Connector Type
9-way
D-type
Pin No.
25-way
D-type
Pin No.
RxD (I/P)
3
TxD
3
2
TxD (O/P)
2
RxD
2
3
GND
5
GND
5
7
CTS (I/P)
7
RTS
7
4
RTS (O/P)
8
CTS
8
5
Pulled
high
internally
1
RLSD
(DCD)
1
8
Not
connected
4
DTR
4
20
Pulled
high
internally
6
DSR
DCE Ready
6
6
Equipment
chassis
Connector
shell
Cable Screen
-
1
Содержание K0470
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