•
The marked input voltage of –48 VDC for a DC-powered device is the nominal voltage
associated with the battery circuit, and any higher voltages are only to be associated
with float voltages for the charging function.
•
Because the device is a positive ground system, you must connect the positive lead to
the terminal labeled RTN, the negative lead to the terminal labeled –48 VDC, and the
earth ground to the device grounding points.
Related
Documentation
General Safety Guidelines and Warnings on page 237•
• General Electrical Safety Guidelines and Warnings on page 267
• DC Power Disconnection Warning on page 275
• DC Power Grounding Requirements and Warning on page 276
• DC Power Wiring Sequence Warning on page 277
• DC Power Wiring Terminations Warning on page 279
• Connecting DC Power to an EX2200 Switch
• Connecting DC Power to an EX3200 Switch on page 163
• Connecting DC Power to an EX3400 Switch
• Connecting DC Power to an EX4200 Switch
• Connecting DC Power to an EX4300 Switch
• Connecting DC Power to an EX4500 Switch
• Connecting DC Power to an EX4550 Switch
• Connecting DC Power to an EX4600 Switch
• Connecting DC Power to an EX6200 Switch
• Connecting DC Power to an EX8200 Switch
• Connecting DC Power to an EX9204 Switch
• Connecting DC Power to an EX9208 Switch
• Connecting DC Power to an EX9214 Switch
• Connecting DC Power to an OCX1100 Switch
• Connecting DC Power to an XRE200 External Routing Engine
• Connecting DC Power to a QFX3500, QFX3600, or QFX3600-I Device
• Connecting DC Power to a QFX5100 Device
• Connecting DC Power to a QFX10002
• Connecting DC Power to a QFX10000
• Connecting DC Power to a QFX5200
Copyright © 2016, Juniper Networks, Inc.274
EX3200 Switch Hardware Guide
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