Bay Technical Associates BayTech DS72 사용자 설명서
DS72 Host Module
11
Cabling
RJ-45 Cables and Adapters
DS72 EIA-232 RJ-45 Pin/Signal Definition
Pin EIA
232
Signal
Signal
Direction
Description
1 DTR Out
Handshake, Line Driver Inactive State = High: +12V when power is
applied. Used as a handshake line to enable/disable the receiving of
characters.
applied. Used as a handshake line to enable/disable the receiving of
characters.
2 GND
Signal
Ground
3 RTS Out
Handshake, Line Driver Inactive State = High: +12 V when power is
applied. Not used to enable/disable.
applied. Not used to enable/disable.
4
TX
Out
Transmit Data Out
5 RX
In
Receive
Data
In
6 DSR In
Handshake In. –12V when not used.
7 GND
Signal
Ground
8 CTS In
Used as a handshake line to enable/disable the receiving of characters.
Adapters Signals
Listed are the pin specifications for the BayTech cable and adapters and the terminal COM ports:
Signal
RS-232
Port (DS)
RS-232
Port (RPC)
COM Port
DE-9 Pin
DE-9 Pin
COM Port
DB-25 Pin
DTR 1
1
4
20
DSR
GND 2
2
1 GND
RTS 3
3
7
5 CTS
TxD 4
4
3
2 RxD
RxD 5
5
2
3 TxD
DSR 6
N/C
6
6 DTR
GND 7
7
5
7 GND
CTS 8
8
4 RTS
DTR
4
DCD
DCD
8
1
8 DTR
RI 9
22