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Note: External voltage sense connections are at the programmed output voltage when the
output is on so DO NOT connect or disconnect the external voltage sense lines while the AC
power source is in use.
AFX L Version units are shipped with the mating sense connector installed but no wires to
prevent contact with the sense connections. AFX A Version units don't require a mating
connector.
7.3 Auxiliary I/O
The Auxiliary I/O functions are only available on 3xx0AFX-2AG and 3xx0AFX-4AG version
power source models.
7.3.1
Auxiliary I/O Functions
The Auxiliary I/O board when added to an AFX Series power source adds the following
functions and features:
•
Digital Inputs for trigger functions and control.
•
Digital Outputs for status indication and relay control.
•
Analog Inputs for control of power source parameters.
•
Analog Outputs for measurement monitoring.
•
A 12Vdc power output to power external circuits.
RS232 Serial Interface.
•
•
Optional embedded GPIB Control Interface
The analog, digital and RS232 ports are accessible on a female DB25 connector located on
the rear panel of the AFX master unit. This connector is mounted upside down so pin 1 is
located in the lower right-hand corner when facing the back of the AFX master unit.
The USB, LAN and optional GPIB connectors are located to the left of the AUX I/O connector
on the rear panel when facing the power source from behind.
Entire Contents Copyright
2018 by Pacific Power Source, Inc. (PPS) • All Rights Reserved • No reproduction without written authorization from PPS.
AFX Series Power Source Operation Manual
Figure 7-1: Rear Panel AUX I/O DB25 Connector Location
AFX SERIES® OPERATION MANUAL
Rear Panel, Connectors and Protection
SECTION 7:
Page 189 of 485
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