Cisco 8600 Manuale utente

Powering on the Router

This chapter describes how to connect the power modules in the chassis and to power on the router.

•Power Supply Overview, on page 1

•Power Connection Guidelines for AC-Powered Systems, on page 2

•Connect AC Power to the Chassis, on page 3

•Connect a DC Power Supply to the Chassis, on page 14

Power Supply Overview

You can install up to four 3.2KW AC or 3.2KW DC power supplies in the chassis. Ensure that all power

connection wiring conforms that to the rules and regulations in the National Electrical Code (NEC) and in

local codes.

The Cisco 8608 chassis doesn't support a mix of AC and DC Power Supply Units (PSUs).

Note

AC Power Module

• The AC power modules are single feed with 3.2KW capacity at 220V. They also support operation at

110V with half the capacity of 1570W.

• AC power modules are rated at 3.2KW maximum at 230V AC high line input, and 1570W maximum at

115V AC low line input.

• AC nominal range: 100—120V AC and 200—240V AC

• AC full range: 85—132 V AC and 180—264V AC; with extended range to 300V AC

DC Power Module

• The DC power modules are dual feed with 3.2KW capacity at any specified input voltage. DC power

modules with single feed at any specified input voltage provide up to 1.6KW maximum capacity.

• DC nominal range: -48 to -60VDC

• DC full range: -40 to -75VDC

Powering on the Router

Power Connection Guidelines for AC-Powered Systems

When connecting AC-input Power Supply Units (PSUs) to the site power source, observe the guidelines

described here.

Statement 1028—More Than One Power Supply

This unit might have more than one power supply connection. To reduce risk of electric shock, remove all

connections to de-energize the unit.

Warning

• Ensure that the AC-input power supply module has a detachable power cord.

• Each chassis power supply should have a separate, dedicated branch circuit.

• North America

• PSU3.2KW-ACPI only—Power supply modules require a 20 A circuit.

• International—Circuits should be sized according to local and national codes.

• If you are using a 208 or 240 VAC power source in North America, note that such lines are considered

hot and the circuit must be protected by a two-pole circuit breaker.

Statement 1005—Circuit Breaker

This product relies on the building’s installation for short-circuit (overcurrent)

protection. To reduce risk of electric shock or fire, ensure that the protective

device is rated not greater than:

Warning

• 20 A circuit breaker for an AC-input power supply module.

•50 A DC-rated circuit breaker for each input of a DC-input power supply module, for safety purposes

- irrespective of whether the inputs are power from a single or separate DC sources.

This product requires short-circuit (overcurrent) protection, to be provided as

part of the building installation. Install only in accordance with national and local

wiring regulations. Statement 1045

Warning

Powering on the Router

Power Connection Guidelines for AC-Powered Systems

Statement 1022—Disconnect Device

To reduce risk of electric shock and fire, a readily accessible two-poled disconnect

device must be incorporated in the fixed wiring.

Warning

• The source AC outlet must be within 9.84 to 14 feet (3.0 to 4.293 meters) of the system - depending on

the length of the power cord, and should be easily accessible.

• The AC power receptacles used to plug in the chassis must be the grounding type. The grounding

conductors that connect to the receptacles should connect to protective earth ground at the service

equipment level.

Connect AC Power to the Chassis

Statement 1030—Equipment Installation

Only trained and qualified personnel should be allowed to install, replace, or service this equipment.

Warning

Statement 1017—Restricted Area

This unit is intended for installation in restricted access areas. Only skilled, instructed, or qualified personnel

can access a restricted access area.

Warning

Statement 1005—Circuit Breaker

This product relies on the building’s installation for short-circuit (overcurrent) protection. To reduce risk of

electric shock or fire, ensure that the protective device is rated not greater than:

AC: 20A, DC: 50A

Warning

Statement 1028—More Than One Power Supply

This unit might have more than one power supply connection. To reduce risk of electric shock, remove all

connections to de-energize the unit.

Warning

Powering on the Router

Connect AC Power to the Chassis

Statement 1003—DC Power Disconnection

To reduce risk of electric shock or personal injury, disconnect DC power before removing or replacing

components or performing upgrades.

Warning

Statement 1046—Installing or Replacing the Unit

To reduce risk of electric shock, when installing or replacing the unit, the ground connection must always be

made first and disconnected last.

Warning

Statement 1022—Disconnect Device

To reduce risk of electric shock and fire, a readily accessible two-poled disconnect device must be incorporated

in the fixed wiring.

Warning

Statement 1025—Use Copper Conductors Only

To reduce risk of fire, use copper conductors only.

Warning

Statement 1018—Supply Circuit

To reduce risk of electric shock and fire, take care when connecting units to the supply circuit so that wiring

is not overloaded.

Warning

Statement 1029—Blank Faceplates and Cover Panels

Blank faceplates and cover panels serve three important functions: they reduce the risk of electric shock and

fire, 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.

Warning

The chassis relies on the protective devices in the building installation to protect against short circuit,

overcurrent, and ground faults. Ensure that the protective devices comply with local and national electrical

codes.

Caution

Powering on the Router

Connect AC Power to the Chassis

We recommend that you occupy all power supply slots of the router with power supplies. In case a power

module fails, it is recommended to retain the failed power module in its slot until it is replaced with a new

power module. This recommendation ensures that the system airflow is not impacted adversely, which may

then result in the overheating of the router and its components.

Note

A dual pole breaker is needed for installation. For determining the recommended breaker size, please adhere

to local and national rules and regulations. The breaker size is based on the specifications of the product for

the current drawn and the specified voltage level.

Note

Procedure

Step 1 Verify that the AC cable is installed in the correct AC source and outlet type.

Step 2 Set the AC-input power supply switch to the OFF (0) position.

Figure 1: Power Switch in Off Position

Power supply in the OFF (0) position1

Step 3 Grasp the power supply handle with one hand and place your other hand underneath to support the bottom of

the PSU. Slide the PSU all the way into the power supply bay. Ensure that the PSU is fully seated in the bay.

Powering on the Router

Connect AC Power to the Chassis

When correctly installed, the latch on the PSU locks-in the module, to avoid accidental removal of the module.

Figure 2: Slide the PSU into the Power Supply Bay

Power supply latch, which clicks into place1

Step 4 Verify that all site power and grounding requirements have been met.

Step 5 Verify that you have the correct AC power cord for your location and power supply rating and only then plug

the power cord connector into the power supply AC-in receptacle.

Powering on the Router

Connect AC Power to the Chassis

Figure 3: Plug Power Cord Connector into AC-in Receptacle

Power cord, plugged into the AC-in receptacle1

Step 6 Strap in the power cord retainer, to hold it in place and avoid accidental removal. For more information, see

Power Cord Retainer Mechanism

Step 7 Set the power switch to the on (|) position

Power Cord Retainer Mechanism

This section shows how to correctly operate the power cord retainer, to tighten or loosen it while installing

or removing the power supply unit.

Some of the illustrations do not include the power supply module, for the sake of clarity. The retainer is

otherwise permanently fixed to the power supply module.

Note

Powering on the Router

Power Cord Retainer Mechanism

Figure 4: Parts of the Power Cord Retainer

Flexible retainer strip4The end that is fixed to the power supply

unit

Retainer strip latch5Clamp which can move towards the power

supply or away from it

Clamp latch3

Installation and Removal Sequence

Installation—After you have inserted the power supply unit into the bay, first position the clamp closest to

the power supply, near the plug round cylinder stress relief and then insert the flexible retainer strip into the

clamp hole and tighten. The clamp cannot be moved after the flexible retainer strip is inserted into the clamp

hole.

Removal—After you have turned off the power supply unit's rocker switch, first remove the flexible retainer

strip from the clamp hole and then adjust the position of the clamp to remove the power cord.

Positioning the Clamp

In figure, Figure 5: Positioning the Clamp, the clamp can always move freely in direction 3a. To move the

clamp in direction 3b, use a flathead screwdriver or similar device and push the clamp latch down. The figure,

Powering on the Router

Power Cord Retainer Mechanism

Figure 6: Clamp Latch - Detail, provides a clearer view of the clamp latch and the direction in which you have

to push the latch to move it in direction 3b.

Figure 5: Positioning the Clamp

Directions in which the clamp can be moved,

towards the power supply and away from it.

3a and 3bThe end that is fixed to the power

supply unit

Clamp Latch2

Powering on the Router

Power Cord Retainer Mechanism

Figure 6: Clamp Latch - Detail

Inserting and Tightening the Retainer Strip

The flexible retainer strip inserts into the clamp hole and should be tightened around the power cord.

To loosen or remove the flexible retainer strip, position a flathead screwdriver or similar device between the

flexible retainer strip and the retainer strip latch and push the latch away from the flexible retainer strip.

Powering on the Router

Power Cord Retainer Mechanism

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