Netscreen-5200 Power Recommendations; Netscreen-5400 Power Recommendations; The Dc Power Supply - Juniper 5000 SERIES User Manual

Chapter 1 Overview

NetScreen-5200 Power Recommendations

Although the NetScreen-5200 can run with one power supply, it is advisable to install
both. This practice minimizes the likelihood of system failure due to individual power
supply failure.
When either power supply fails, the Alarm LED on the management module glows red. If
both are operational, the Alarm LED is off. For more information on power supply LEDs,
see Appendix B,

NetScreen-5400 Power Recommendations

When the NetScreen-5400 contains only two modules, it can operate with one power
supply. However, if the system contains three or four modules, the system requires at
least two power supplies. In either case, it is advisable to install all three power supplies.
This practice minimizes the likelihood of system failure due to individual power supply
failure.
When any power supply fails, the Alarm LED on the management module glows red.
While all three are operational, the Alarm LED is off. For more information on power
supply LEDs, see Appendix B,

The DC Power Supply

The DC power supply weighs about three pounds. The faceplate contains a power LED, a
power switch, a cooling fan vent, and three DC power terminal blocks that connect to
power cables.
The figure below shows the NetScreen-5200 DC power supply.
Power
LED
6
Port Descriptions and LED
Port Descriptions and LED
Status.
Status.
Power Switch
Thumbscrew
DC Power
Terminal
Blocks
Grounding
Screw
User's Guide