Cisco NCS 6000 Manual - Halaman 5

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Installing the Power Components

AC Power System

Overview of the AC Power System

An AC-powered Cisco NCS 6000 FCC contains four AC power trays that are part of the FCC power enclosure

(Figure

(PT2 and PT3) are referred to as PS1.

with its own I/O power switch.

Each AC power tray has three slots for PMs. The AC power trays are field-replaceable (after power down),

however the PMs are hot-swappable.

Each inserted AC PM requires a single-phase, 50 to 60 Hz, 200 to 240 VAC input. Input current is variable

and based on facility minimum voltage. For N+N redundancy, power feeds A must power the upper two AC

power trays and power feeds B must power the lower two AC power trays (not all of the power module bays

need to be filled). This allows the system to balance its load across each set of power trays and across the

power modules within each tray.

The AC power system requires single-phase AC input power to each inserted PM. If you have a 3-phase AC

Delta or AC Wye at your equipment, a Cisco NCS power distribution unit (PDU) is required to convert

3-phase AC input power to single-phase AC input power system.

If you plan to use a three-phase AC PDU we recommend that you install three AC PMs in each AC power

Note

tray to maintain a balanced three-phase power load.

We recommend that you use appropriate short-circuit protection in compliance with national and local

Note

electrical codes.

The AC PDU converts three-phase AC input power to single-phase AC input power that connects directly to

the rear of each PM. The AC PDU includes either an AC Delta (Cisco PID NCS-PDU-DELTA) or AC Wye

1). The upper two power trays (PT0 and PT1) are referred to as PS0, and the lower two power trays

Cisco Network Convergence System 6000 Fabric Card Chassis Hardware Installation Guide

Figure

3. Each set of power trays has a power control module (PCM)

AC Power System