Dc Power Supply Description - Juniper EX9253 Hardware Manual

DC Power Supply Description

Each DC power supply weighs approximately 4.4 lb (1.99 kg) and consists of a handle, an ejector lever, a
status LED, and a terminal block that provides a single DC input (–48- VDC and return) that requires a
dedicated customer-site circuit breaker. We recommend that you use a dedicated customer-site circuit
breaker rated for 40 A (–48 VDC) minimum, or as required by local code.
Figure 16 on page 32 shows the power supply and
components.
Figure 16: DC Power Supply
Figure 17: DC Power Supply Components
1 Ejector lever
—
2 Status LED
—
Each power supply has its own fan and is cooled by its own internal cooling system. EX9253 switches
support 1100 W DC power supply. Each DC power supply has terminals located on the power supply
Figure 17 on page 32 shows the power supply
3 DC power terminals
—
4 Handle
—
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