Juniper PTX Series - Figure 21: PDU; Table 16: Supported Power Distribution Units

PDU Function
The PDUs provide connections for the DC power cables, circuit breakers, and over current
protection; configure the output voltages produced by the power supply modules into
three different output zones; and connect to the midplane, which distributes the different
output voltages to the packet transport switch components, depending on their voltage
requirements.
PDUs Supported
The packet transport switch supports the PDU in Table 16 on page 38.
Table 16: Supported Power Distribution Units
First Supported Junos OS
ReleaseModel NumberName
12.1x48PDU-PTX-DC-120DC PDU (120 A feeds)
PDU Components
Figure 21 on page 38 shows the PDU. Each 120-A DC PDU weighs approximately 60 lb
(27.2 kg).
Figure 21: PDU
g006129
2
1
1
4
3
5
4—1— Circuit breakersMetal handle
5—2— Input power traysPower switch
3—Air exhaust ventilation
Copyright © 2012, Juniper Networks, Inc.38
PTX5000 Packet Transport Switch Hardware Guide