Juniper-networks T1600 User Manual download pdf (Page 6)

NOTE: These components must be installed before you can install a T1600-FPC in

the T1600 routing node.

Power Supplies

Two redundant, load-sharing DC power supplies are located at the lower rear of the

chassis in slots PEM0 and PEM1 (top to bottom). For power specifications for the

system, power supplies, and power cables, see “T1600 Routing Node DC Power

Specifications” on page 44.

Three-Input 240-A Power Supplies

Each three-input 240-A power supply weighs approximately 25 lb. (11.3 kg) and

consists of three inputs, three 80-A circuit breakers, a fan, and LEDs to monitor the

status of the power supply. Figure 3 on page 6 shows the three-input 240-A power

supply.

Figure 3: Three-Input 240-A Power Supply

Three-Input 240-A Power Supply Inputs

The three-input 240-A DC power supply inputs are labeled INPUT 0, INPUT 1, and

INPUT 2, from top to bottom. Each input consists of –48 VDC and return—each with

its own 80-A circuit breaker. The input mode switch on the faceplate allows you to

set the DC power supply to either two-input or three-input mode mode. Three-input

mode is required for the T1600 routing node. Two-input mode is not currently

supported.

Table 1 on page 7 describes which components are powered by each input.

6 ■ T1600 Upgrade Kit

T1600 Routing Node Upgrade Guide

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Juniper-networks T1600 User Manual Page 6