ETS-Lindgren HI-1710A Microwave Oven Survey Meter - Manual (Page 24)

24 Operation www.ets-lindgren.com
ALARM OUT
Pin Definition
1 NC
2 NC
3 Normal
4 Common
5 Alarm
RS-232 (D IGITAL I NPUT /O UTPUT )
This two-way, standard 9-pin RS-232 serial data port is used to connect external
devices. These external devices can monitor and/or control the HI-1710A.
All functions normally accessed by the touch switch inputs can be controlled
externally and all data normally displayed can be transmitted through the serial
port. This is accomplished using a simple command structure of ASCII character
codes and a controller such as a personal computer or a video display terminal
(VDT). See Appendix C on page 55 for a summary of commands.
The default mode of the HI-1710A generates a formatted test summary. When
on, the default conditions are 8 data bits, 1 stop bit, no parity, and no flow control.
The HI-1710A is set up at the factory for 9600 baud. This makes it possible to
connect a monitoring device such as a VDT or printer.
The baud rate of the serial port can be changed either through the HI-1710A
menu options or by an external command through the RS-232 serial port.