Agilent Technologies 1290 Infinity User Manual page 258

12
Hardware Information
Interfaces
APG Remote
The APG Remote connector may be used in combination with other analytical
instruments from Agilent Technologies if you want to use features as common
shut down, prepare, and so on.
Remote control allows easy connection between single instruments or systems
to ensure coordinated analysis with simple coupling requirements.
The subminiature D connector is used. The module provides one remote
connector which is inputs/outputs (wired- or technique).
To provide maximum safety within a distributed analysis system, one line is
dedicated to SHUT DOWN the system's critical parts in case any module detects
a serious problem. To detect whether all participating modules are switched
on or properly powered, one line is defined to summarize the POWER ON state
of all connected modules. 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, + 5.0 V is false),
• fan-out is 10,
• input load is 2.2 kOhm against + 5.0 V, and
• output are open collector type, inputs/outputs (wired- or technique).
All common TTL circuits operate with a 5 V power supply. A TTL signal is defined as "low"
N O T E
or L when between 0 V and 0.8 V and "high" or H when between 2.0 V and 5.0 V (with
respect to the ground terminal).
258 1290 Infinity Quaternary Pump User Manual