Remote Interface; Aux I/O Installation - Pacific Power Source ASX series Operation Manual

3.6

REMOTE INTERFACE

The UPC-Series programmable controller is supplied with one of two remote interfaces. These are
the GPIB (General Purpose Interface Bus) or RS-232 Interface. Connection information relative to
these interfaces is described in detail in the UPC-Series Operation manual.
On systems outfitted with the SCU, all remote interface connections and configuration settings are
made at the SCU.
3.7

AUX I/O INSTALLATION

This paragraph describes connection of the AUXiliary Input/Output signals. These signals vary
between the different controllers. However the method of connection remains the same.
The AUX I/O connector contains synchronizing outputs (digital) and modulation inputs (analog).
These are extremely useful in certain test applications, particularly, single event phenomena.
Modulation inputs are also present on this connector. The use of any of these signals is optional
and connection to these points is required only when these features are used.
The AUX I/O connector is located on the rear panel of the power source (or SCU, when present)
and is labeled as such. This is a DB-25S connector. A DB-25P connector is required for
connection to AUX I/O connector.
On systems outfitted with the SCU, the AUX I/O connections are made at the SCU.
All signals contained within the AUX I/O connector are low-level (less than ±15 VDC) and are with
respect to earth ground reference. Refer to the appropriate controller operation manual for
complete definition of the signals present on the AUX I/O connector.
SECTION 3
69
INSTALLATION