Ac Power Systems; Before Powering The Chassis Up Or Down - Cisco ASR 14000 Series Installation Manual

Information About Installing and Removing the Power Components

AC Power Systems

An AC-powered Cisco ASR 14000 series 8-slot line card chassis contains two AC power distribution
units (PDUs) and two AC rectifier modules. Each AC PDU is connected to a 3-phase (200 to 240) input
VAC power source and connects to a single 7500-watt AC rectifier module that is field replaceable. Each
AC rectifier module converts input AC power to the 54.5 VDC used by the Cisco ASR 14000 series 8-slot
line card chassis. Each rectifier has its own circuit breaker.
To provide 2N power redundancy for the Cisco ASR 14000 series 8-slot line card chassis, each PDU and
AC rectifier pair is connected to a different AC power source. During normal operation when both power
sources are operational, both PDUs and rectifiers function together to power the chassis. However, if a
power sources fails, the other power source provides the other PDU and rectifier pair with enough input
power to power the chassis. This 2N power redundancy enables the routing system to operate despite the
power failure.
Two versions of the AC PDU are available to accommodate AC input power in either the Delta or Wye
configuration. Each PDU has a different Cisco part number. The PDUs are shipped with AC power cords
that are 14 feet (4.3 m) long.
The AC PDUs have the following input VAC power requirements:
•
•
For additional power details, see
Specifications,"

Before Powering the Chassis Up or Down

While the line card chassis does not have a single power switch that powers the entire chassis and all its
components up and down, the AC rectifier or DC PEM linkage cuts power to the chassis as a whole when
both power components are turned off. Most components on the chassis, such as the power modules,
MSCs, PLIMs, and fan trays can be removed or installed in the chassis while it is running.
Before you can power the chassis up, you must do the following:
Install the PDUs (see the
Step 1
Install the power modules (see the
Step 2
Install the route processor (RP) card (see the
Step 3
Step 4 Activate your power source.
Step 5 Turn the power module switches to the on position.
Cisco ASR 14000 Series Router 8-Slot Line Card Chassis Installation Guide
2-8
AC Wye input: 3-phase, 200 to 240 VAC nominal (phase-to-neutral), 50 to 60 Hz,
16 A (International) or 20 A (North America). The PDU is rated for 14-amp service, and accepts AC
input of 16 or 20 A.
The Wye power cord has a 5-pin IEC 60309 plug that is rated for 400 VAC, 16 or 20 A, (3W + N +
PE). The power cord plugs into a similarly rated IEC 60309 receptacle.
AC Delta input: 3-phase, 200 to 240 VAC nominal (phase-to-phase), 50 to 60 Hz, 30 A. The PDU is
rated for 24-amp service, and accepts AC input of 30 A.
The Delta power cord has a 4-pin NEMA L15-30P plug that is rated for 250 VAC, 30 A (3W + PE).
The power cord plugs into a similarly rated NEMA L15-30R locking-type receptacle.
or Cisco ASR 14000 8-Slot Line Card Chassis System Description.
"Installing a PDU" section on page
Chapter 2
Appendix A, "Cisco ASR 14000 Series 8-Slot Line Card Chassis
"Installing a Power Module" section on page
"Installing an RP or DRP Card" section on page
Installing and Removing Power Components
2-10).
2-13).
4-39).
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