10 Instrument setup
Roche Diagnostics
COBAS INTEGRA 400 plus analyzer/Cedex Bio HT Analyzer · Software version 3.6/5.1 · Host Interface Manual · Version 1.24
Instrument setup 195
About the RS-232 serial interface
In this section
RS-232 (CCITT V.24) serial interface (195)
Signal levels (195)
Signal description (196)
About the handshake (197)
RS-232 (CCITT V.24) serial interface
The instrument serial interface is based on international
standards. The relevant standards are EIA RS-232D and
CCITT V.24.
The RS-232 serial interface is an asynchronous interface
with ASCII character transfer.
• The characters are transmitted bit-wise.
• The transfer starts with a start bit and ends with one
or two stop bits.
• There is also a possibility of detecting a bit failure with
the parity bit.
• The parity bit is selectable as even, odd or none.
Signal levels
The signal levels for data, control and status lines are as
follows:
• "0" / space / on
• +3 V to +15 V
• "1" / mark / off
• -3 V to -15 V
To Next Page
Loading...
