Cisco PWR-C1-1900WAC-P Instruction Manual

Installing a Power Supply
•Power Supply Modules Overview, on page 1
•Installation Guidelines, on page 5
•Installing or Replacing an AC Power Supply, on page 6
•Installing a DC Power Supply, on page 8
•Finding the Power Supply Module Serial Number, on page 13
Power Supply Modules Overview
The switch operates with either one or two active power supply modules. A switch that is part of a StackPower
stack operates with power that is supplied by other stack switches.
You can use two AC modules or one module and blank cover. All power supply modules have internal fans.
All switches ship with a blank cover in the second power supply slot.
The following table describes the supported internal power supply modules. It lists the Platinum certified
power supply modules and the default modules that are shipped with the switch. In a switch, a mix of Platinum
certified and non-Platinum certified power supply modules is supported.
Table 1: Power Supply Module Part Numbers and Descriptions
DescriptionPart Number
1100 W AC power supply modulePWR-C1-1100WAC
715 W AC power supply modulePWR-C1-715WAC
350 W AC power supply modulePWR-C1-350WAC
350 W AC Platinum certified power supply modulePWR-C1-350WAC-P
715 W AC Platinum certified power supply modulePWR-C1-715WAC-P
1100 W AC Platinum certified power supply modulePWR-C1-1100WAC-P
1900 W AC Platinum certified power supply modulePWR-C1-1900WAC-P1
715 W DC power supply modulePWR-C1-715WDC
Blank coverPWR-C1-BLANK
Installing a Power Supply
1

1. PWR-C1-1900WAC-P provides 1900 W output power when the nominal input voltage is 230 V. If the
nominal input voltage is 115 V, then the output power is limited to 1500 W. See Table 2 for suitable power
cord options.
For more information about power supplies, see Specifications for the Power Supplies, Switches, and
Fan.
Note
For information on available PoE, PoE+, and Cisco UPOE/UPOE+ requirements, see these sections the Power
Supply Modules.
The 350 W and 715 W AC power supply modules are autoranging units that support input voltages from 100
through 240 VAC. The 1100W power supply module is an autoranging unit that supports input voltages from
115 through 240 VAC.
Each AC power supply module has a power cord for connection to an AC power outlet. To view the list of
available AC power cords, see AC Power Cord Specifications.
The following illustrations show the power supply modules.
Figure 1: 1100 W AC Power Supply
Release latch51100 W AC power supply
module
1
Power cord retainer6AC OK LED2
Keying feature7PS OK LED3
--AC power cord connector4
Installing a Power Supply
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Installing a Power Supply
Power Supply Modules Overview

Figure 2: 1900 W AC Platinum Certified Power Supply
AC power cord connector51900 W AC power supply
module
1
Release latch6Keying feature2
Power cord retainer7AC OK LED3
PS OK LED4
Installing a Power Supply
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Installing a Power Supply
Power Supply Modules Overview

Figure 3: 715W DC Power Supply
Input power terminal
(positive polarity)
6715 W DC power supply
module
1
Input power terminal
(negative polarity)
7DC OK LED2
Grounding terminal8PS OK LED3
Terminal block safety
cover
9Release latch4
--Extraction handle5
If no power supply is installed in a power supply slot, install a power supply slot cover.
Installing a Power Supply
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Installing a Power Supply
Power Supply Modules Overview

Figure 4: Power Supply Slot Cover
Retainer clips2Release handles1
Table 2: Switch Power Supply Module LEDs
DescriptionPS OKDescriptionAC or DC
OK
Output is disabled, or input is outside
operating range (LED is off).
OffNo AC or DC input power.Off
Power output to switch active.GreenAC or DC input power present.Green
Output has failed.Red
Installation Guidelines
Observe these guidelines when removing or installing a power supply or fan module:
• Do not force the power supply or fan module into the slot. This can damage the pins on the switch if they
are not aligned with the module.
• A power supply that is only partially connected to the switch can disrupt the system operation.
• Remove power from the power-supply module before removing or installing the module.
• The power supply is hot-swappable. In some configurations, such as full PoE+ or power sharing mode,
removing a power supply causes powered devices to shut down until the power budget matches the input
power of a single power supply. To minimize network interruption, hot swap the power supply under
these circumstances:
• The switch is in StackPower mode and sufficient power is available.
• The switch is powered by other switches in a power stack, and no active backup is in progress.
For the switch commands that display available power budget, see the software configuration guide.
Installing a Power Supply
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Installing a Power Supply
Installation Guidelines

Do not operate the switch with one power-supply module slot empty. For proper chassis cooling, both module
slots must be populated, with either a power supply or a blank module.
Caution
This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the absence
of a suitably installed ground conductor. Contact the appropriate electrical inspection authority or an electrician
if you are uncertain that suitable grounding is available.
Statement 1024
Warning
Blank faceplates and cover panels serve three important functions: they prevent exposure to hazardous voltages
and currents inside the chassis; they contain electromagnetic interference (EMI) that might disrupt other
equipment; and they direct the flow of cooling air through the chassis. Do not operate the system unless all
cards, faceplates, front covers, and rear covers are in place.
Statement 1029
Warning
Do not reach into a vacant slot or chassis while you install or remove a module. Exposed circuitry could
constitute an energy hazard.
Statement 206
Warning
Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Statement 1030
Warning
If a Cisco external power system is not connected to the switch, install the provided connector cover on the
back of the switch.
Statement 386
Warning
Installing or Replacing an AC Power Supply
Procedure
Step 1 Turn off the power at its source.
Step 2 Remove the power cord from the power cord retainer.
Step 3 Remove the power cord from the power connector.
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Installing a Power Supply
Installing or Replacing an AC Power Supply

Step 4 Press the release latch at the right side of the power supply module inward and slide the power supply out.
Do not leave the power-supply slot open for more than 90 seconds while the switch is operating.
Caution
This unit might have more than one power supply connection. All connections must be removed to
de-energize the unit. Statement 1028
Warning
Step 5 Insert the new power supply into the power supply slot, and gently push it into the slot. When correctly inserted,
the 350 W and 715 W power supplies (excluding the power cord retainer) are flush with the switch rear panel.
The 1100 W power supply modules extend 1.5 inches and 1900 W power supply modules extend 1.5 inches
from the switch rear panel.
Figure 5: Inserting the AC Power Supply in the Switch
Step 6 (Optional) Make a loop in the power cord and thread it through the power cord retainer or use the cable-tie
retainer clip on the 1900 W supply.
Figure 6: AC-Power Supply with Power Cord Retainer
Step 7 Connect the power cord to the power supply and to an AC power outlet. Turn on the power at the power
source.
Step 8 Confirm that the power supply AC OK and PS OK LEDs are green.
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Installing a Power Supply
Installing or Replacing an AC Power Supply

Installing a DC Power Supply
An exposed wire lead from a DC-input power source can conduct harmful levels of electricity. Be sure that
no exposed portion of the DC-input power source wire extends from the terminal block plug. Statement 122
Warning
Before performing any of the following procedures, ensure that power is removed from the DC circuit.
Statement 1003
Warning
This product relies on the building's installation for short-circuit (overcurrent) protection. Ensure that the
protective device is rated not greater than: 20 A. Statement 1005
Warning
A readily accessible two-poled disconnect device must be incorporated in the fixed wiring. Statement 1022
Warning
Hazardous voltage or energy may be present on power terminals. Always replace cover when terminals are
not in service. Be sure uninsulated conductors are not accessible when cover is in place. Statement 1086
Warning
The grounding architecture of this product is DC-isolated (DC-I).
Note
Equipment That You Need
• Ratcheting torque screwdriver with a number-2 Phillips head that exerts up to 15 pound-force inches
(lbf-in.) of pressure.
• Panduit crimping tool with optional controlled-cycle mechanism (model CT-720, CT-920, CT-920CH,
CT-930, or CT-940CH).
• Wire-stripping tools.
• 12-gauge copper ground wire (insulated or not) for the single-hole ground connection.
• 8-gauge copper ground wire (insulated or not) for the dual-hole ground connection.
• Dual-hole ground lug and two screws (included in the DC power supply accessory kit) and single-hole
ground lug and screw (included in the switch accessory kit). The dual-hole lug is required for the grounding
of the switch in NEBS installations where the DC supply is the only NEBS compliant power supply
option.
• Four leads of 14-gauge copper wire.
Installing a Power Supply
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Installing a Power Supply
Installing a DC Power Supply

• Four fork-type terminals from the DC power supply accessory kit. The terminals must be the proper size
for M3 screws in a Dinkle DT-35-B25-style terminal block.
• M5 screws for 12 AWG wire connection for NEBS installations.
Grounding the Switch
Follow these steps to install either a single-hole ground lug or a dual-hole ground lug on the switch. Make
sure to follow any grounding requirements at your site.
Before you begin
Follow the grounding procedures at your site and observe these warnings:
This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the absence
of a suitably installed ground conductor. Contact the appropriate electrical inspection authority or an electrician
if you are uncertain that suitable grounding is available. Statement 1024
Warning
When installing or replacing the unit, the ground connection must always be made first and disconnected last.
Statement 1046
Warning
Follow the grounding procedure instructions, and use a UL-listed lug (included in the accessory kit).
Caution
To comply with the Telcordia GR-1089 NEBS standard for electromagnetic compatibility and safety, connect
the (Management Ethernet) ports only to intra-building or unexposed wiring or cable. The intrabuilding cable
must be shielded and the shield must be grounded at both ends. The intra-building port(s) of the equipment
or subassembly must not be metallically connected to interfaces that connect to the OSP or its wiring. These
interfaces are designed for use as intra-building interfaces only (Type 2 or Type 4 ports as described in
GR-1089-CORE) and require isolation from the exposed OSP cabling. The addition of Primary Protectors is
not sufficient protection in order to connect these interfaces metallically to OSP wiring.
Caution
Procedure
Step 1 Use the ground lug screw and the lug ring for single-ground connections. Use the dual-hole lug for ground
connections for NEBS installation.
Step 2 Strip the 12-gauge or 8-gauge ground wire to 0.5 inch (12.7 mm) ± 0.02 inch (0.5 mm). Stripping more than
the recommended amount of wire can leave exposed wire from the connector. Use 12-gauge copper ground
wire for the single-ground connection. Use 8-gauge copper ground wire for the dual-ground connection.
Installing a Power Supply
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Installing a Power Supply
Grounding the Switch

Figure 7: Stripping the Ground Wire
Step 3 Slide the open end of the ground lug over the exposed area of the wire.
Step 4 Using a Panduit crimping tool, crimp the ground lug to the wire.
Figure 8: Crimping the Ground Lug
Step 5 Use the ground screw to attach the single-hole ground lug to the switch rear panel. Use two ground screws to
attach the dual-hole ground lug to the switch rear panel.
Installing a Power Supply
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Installing a Power Supply
Grounding the Switch