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Introduction to the Quaternary Pump
Agilent 1100 Series Interfaces
Table 33 APG Remote Signal Distribution
Pin Signal Description
1 DGND Digital ground
2 PREPARE (L) Request to prepare for analysis (for example, detector lamp
on). Receiver is any module performing preanalysis activities.
3 START (L) Request to start run / timetable. Receiver is any module
performing run-time controlled activities.
4 SHUT DOWN (L) System has serious problem (for example, leak: stops pump).
Receiver is any module that needs to be shutdown to avoid a
safety risk.
5 Not used
6 POWER ON (H) All modules connected to system are switched on. Receiver is
any module relying on operation of others.
7 READY (H) System is ready for next analysis. Receiver is any sequence
controller.
8 STOP (L) Request to reach system ready state as soon as possible (for
example, stop run, abort or finish and stop injection). Receiver is
any module performing run-time controlled activities.
9 START REQUEST (L) Request to start injection cycle. Receiver is the autosampler.