Jnp10K-Pwr-Dc2 Power Supply - Juniper PTX10008 Hardware Manual

NOTE: The JNP10K-PWR-DC power supply requires a dedicated circuit breaker for each input
DC feed. The chosen breaker should be sized to deliver 60 A of input current.
Each power supply connects to the combined power rail in a PTX10008 router or a PTX10016 router. The
power rail distributes the output power produced by the power supplies to different router components.
Each DC power supply provides power to all the components in the router.
NOTE: Route all the DC power supply cords away from the fan trays. Make sure that the power
cords do not obstruct the fan trays.
You can only use JNP10K-PWR-DC power supplies in the standard chassis, which uses the standard power
bus.
A JNP10K-PWR-DC power supply can operate with only one input DC feed connected. The Routing
Control Board only enables the components for which sufficient power is available.
Each JNP10K-PWR-DC power supply has its own fan and is cooled by its own internal cooling system.
The airflow is from the front of the power supply to the back. Hot air exhausts from the rear of the chassis.
SEE ALSO
JNP10K-PWR-DC Power Specifications | 180
How to Install a JNP10K-PWR-DC Power Supply | 297
How to Remove a JNP10K-PWR-DC Power Supply | 292

JNP10K-PWR-DC2 Power Supply

The JNP10K-PWR-DC2 power supply provides two power supplies in a single housing that accepts either
60 A or 80 A using four redundant input power feeds. PS_0 and PS_1 each have redundant input feeds:
A0 and/or B0 for PS_0 and A1 and/or B1 for PS_1. The input is configured using a set of dip switches on
the power supply faceplate. The output is dependant on the settings of these dip switches. See
Table 13 on page 69. This power supply requires the enhanced power bus. See Figure 32 on page 69.
68