6247G/6247C DC Voltage Current Source/Monitor Operation Manual
6.4.3 Specifications
6-8
The RS-232 connector on the rear panel is a 9-pin connector (DB-9, male).
Up to 251 characters are recognizable in a single program code transmission.
An error occurs if the program code exceeds 251 characters.
The transmit data (TxD) checks the status of the data set ready (DSR) inside the 6247G/6247C. If the data
set ready (DSR) is false, data output is interrupted. When it is true, data is output.
CAUTION:
Flow control by X parameters (XON/XOFF) is not available on the 6247G/6247C.
Pin number
Input/output
Description
2
Input
Receive data
(RxD)
3
Output
Transmit data
(TxD)
4
Output
Data terminal ready
(DTR)
5
-
Signal ground
(SG)
6
Input
Data set ready
(DSR)
2
3
4
5
6
