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2.3
Connection via the RS-232 Interface
Connector and Signal Names
9-Pin to 25-Pin Adapter and Signal Names
Signal Direction
IM 760301-17E
When you connect the WT3000 to a PC, you must set the WT3000 so that the
handshaking method, baud rate, data format, and other parameters match those on the
PC side.
For details on the settings, see the following pages. In addition, use an interface cable
that meets the specifications of the WT3000.
1
6
2
7
3
8
4
9
5
2 RD (Received Data):
3 SD (Send Data):
5 SG (Signal Ground):
7 RS (Request to Send):
8 CS (Clear to Send):
* Pins 1, 4, 6, and 9 are not used.
3
2
7
8
5
(2) (3) (4)
(5)
(7)
The numbers inside the parentheses are pin numbers for the 25-pin connector.
The following figure shows the direction of the signals used by the RS-232 interface of
the WT3000.
Computer
Received data from the PC.
Signal direction ..... input
Transmitted data to the PC.
Signal direction ..... output
Signal ground.
Handshaking signal to receive data from the PC.
Signal direction ..... output
Handshaking signal to send data to the PC.
Signal direction ..... input
RS [Request to send]
CS [Clear to send]
SD [Send data]
RD [Receive data]
1
2
3
4
5
6
7
App
Index
7
8
This
instrument
3
2
2-3
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