Cisco NCS 5700 Series Hardware Installation Manual page 11

NCS 5700 Router Overview
Figure 3: NC57-C3-FAN1-FW Fan Tray - 2x40mm
Power Supply Unit
The NCS-57B1 router has 2 PSUs that install into the chassis from the rear. The PSUs have a capacity of
2000W and works with 1+1 redundancy. The PSU can be AC to DC or DC to DC type. The PSUs provide
12V primary power to the entire system.
The router supports these PSUs:
• PSU2KW-ACPI—2000W AC power supply module with port-side air intake
• PSU2KW-DCPI—2000W 48V DC power supply module with port-side air intake
The router doesn't support a mix of AC and DC PSU for normal operation. However, router supports mix of
AC and DC PSU only during migration from AC to DC, or vice versa.
Hardware Installation Guide for Cisco NCS 5700 Series Fixed-Port Routers
Field Replaceable Units
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