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Document #7650-0004 Rev C2. © Copyright 2019 Directed Energy, Inc. All rights reserved.
Rear Panel Features
Output
A socket that accepts the factory-supplied output cable and provides the generated
current pulses. DO NOT TOUCH any part of this cable while the PCX-7420 is powered
up. Please review the Safety section on Page 3.
Note: Absence of a properly-installed output cable disables the output and creates a
rear enable fault.
Rear Enable
A BNC connector that accepts either an external dry-contact closure or the factory-
supplied shorting BNC plug. Closed contacts, or use of the shorting plug, enables the
output. Open contacts, or removal of the shorting plug, disables the output and creates
a rear enable fault.
IMON Output
A BNC connector that provides a connection to an oscilloscope. The signal is a
voltage that represents the current output. Scaling is 36 mV / 1 A into 50 Ω
Ethernet Cable Connector
Communicates with an external computer through an Ethernet cable.
USB Cable Connector
Communicates with an external computer through a USB cable.
RS232 Cable Connector
Communicates with an external computer through an RS232 null cable.
Power Cable Connector
Accepts a standard grounding equipment power cable.
Fuse Holder
Houses two AC power fuses.
On-Off Switch
Powers the PCX-7420 ON and OFF.