Remote Control - Agilent Technologies 7820A Service Manual

Remote control

262
Agilent 7820 GC Service
Remote control allows easy connection between single
instruments or systems to ensure coordinated analysis with
simple coupling requirements.
Start Relay—A 120 millisecond contact closure
Control of analysis is maintained by signal readiness READY for
next analysis, followed by START of run and optional STOP of
run triggered on the respective lines. In addition, PREPARE and
START REQUEST may be issued.
The signal levels are defined as standard TTL levels (0 V is logic
true, +5 V is logic false).
Input Load >= 2.2 kOhm against +5 V
Output type is open collector.
Remote control timing