Juniper Networks T1600 Benutzerhandbuch

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

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

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

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.

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T1600 Upgrade Kit

T1600 Routing Node Upgrade Guide