Vapro 5520 - 3.7 Serial Data Output

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SECTION 3
OPERATING THE VAPRO OSMOMETER
3.7 Serial Data Output
The 5520 serial port uses a DB9 connector on the
instrument back panel. This port is for asynchronous
serial communication with a printer or computer. It
uses standard non-return-to-zero (NRZ) format at
RS-232 voltage levels.
The instrument senses when the RTS (pin 7) is
active.
When a sample is assayed while a device is con-
nected to the 5520's RS-232 port, the display status
line will show:
To send data to the external device, press ENTER.
The display will show:
See Appendix F for more information.