Vapro 5520 - APPENDIX F Serial Data Output; Serial Data Output

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APPENDIX

Serial Data Output

The 5520 serial port uses a DB9 connector on the instru-

ment back panel. This port is for asynchronous serial com-

munication with a printer or computer. It uses standard

non-return-to-zero (NRZ) format at RS-232 voltage levels.

The 5520 checks to see if the RTS (pin 7) is active. When

a sample is assayed while a device is connected 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:

SERIAL OUTPUT TECHNICAL DATA

Output voltage level:

Nominal ± 9 volts

Maximum ± 15 volts

Minimum ± 5 volts

Data protocol:

1200 bps

1 Start bit

8 Data bits

No parity

1 Stop bit