3-3
IM WT310E-17EN
RS-232 Interface
1
2
3
4
5
6
7
8
9
App
Index
3.3
Connecting to the RS-232 Interface
To connect this instrument to a PC, use an interface cable that is compatible with this instrument
specifications. Be sure to align the handshaking, data transfer rate, data format, and so on with the
PC. For the settings, see section 3.4.
Connector and Signal Names
DELC-J9PAF-13L6 or equivalent
2
1
3
4
5
6
7
8
9
2
1
3 4 5
6 7 8 9
WT332E/WT333E
WT310E/WT310EH
Pin No.
Signal Name
Input or Output
Function
2
RD (Received Data)
Input
Data received from the PC
3
SD (Send Data)
Output
Data sent to the PC
5
SG (Signal Ground)
----
Signal ground
7
RS (Request to Send)
Output
Handshaking signal for receiving data from the PC
8
CS (Clear to Send)
Input
Handshaking signal for sending data to the PC
* Pins 1, 4, 6, and 9 are not used.
9-pin to 25-pin Adapter and Signal Names
5
8
7
2
3
(2) (3) (4) (5)
(7)
Numbers in parentheses are pin numbers for the 25-pin connector.
Signal Direction
The following figure shows the directions of the signals of this instrument RS-232 interface.
PC
This
instrument
RS [Request to send]
SD [Send data]
RD [Receive data]
2
3
8
7
CS [Clear to send]
