Paradyne 8820 Manuale utente

8800-A2-GZ41-20 June 2004 1

8820 Broadband Access Concentrator

AC to DC Power Supply

Installation Instructions

Document Number 8800-A2-GZ41-20

June 2004

AC to DC Power Supply

The AC to DC Power Supply consists of a power supply chassis and one or two

power modules.

The power supply chassis with one power module is Feature

Number 8800-F2-900.

The power module is Feature Number 8800-F2-901.

The AC to DC Power Supply can be used to supply redundant power to a single

8820 Broadband Access Concentrator (BAC), or non-redundant power to one or

two BACs.

The maximum DC output of each power module is 825 watts. Do not exceed

825 watts in your BAC configuration.

Product-Related Documents

Complete documentation for Paradyne products is available at

www.paradyne.com. Select Support →Technical Manuals.

To request a paper copy of a Paradyne document, or to speak with a sales

representative, please call 1-727-530-2000.

Document Number Document Title

8820-A2-GN20 8820 Broadband Access Concentrator Installation Guide

2June 2004 8800-A2-GZ41-20

Installation Overview

Installation of the AC to DC Power Supply requires the following steps:

1. Mount the power supply in your rack.

2. Connect the power supply to the 8820 BAC.

3. Connect the power supply to an AC power source.

Be sure to register your warranty at www.paradyne.com/warranty.

Mounting the Power Supply

Procedure

To mount the power supply:

1. Remove the power modules from the power supply chassis.

2. The power supply is shipped with its mounting brackets set up for a 19-inch

rack. If you are installing the power supply in a 23-inch rack, remove the

mounting brackets from the power supply chassis, turn them, and reinstall

them with their short sides against the body of the power supply chassis.

3. Determine where the power supply will be placed in the rack. The power

supply should be placed under the BAC or BACs it will supply power to.

4. If the rails of your rack have unthreaded screw holes, install self-retaining nuts

on the rails where the mounting brackets will be fastened.

5. Line up the mounting brackets with the front rail holes.

6. Loosely install the bottom screws first and then the top screws.

7. Tighten all screws firmly with a Phillips screwdriver.

8. Replace the power modules removed in Step 1.

8800-A2-GZ41-20 June 2004 3

Connecting the Power Supply to the BAC

Power Entry Modules (PEMs) installed in the front of the BAC provide –48 VDC

power distribution, a 35-amp circuit breaker, power line filtering and input power

monitoring. They are designated PEM A (on the left) and PEM B (on the right). All

input power is distributed to the system via the PEMs, so that if one PEM or one

power source fails, power will be supplied through the other PEM automatically

without service interruption. Power inputs may be connected to the PEMs at the

front of the BAC using the PEM’s terminal blocks, or at the terminal block on the

back of the BAC. This document shows the recommended technique, with

connections at the rear of the BAC. See the 8820 Broadband Access Concentrator

Installation Guide for more information.

Review the following procedures and determine which is appropriate for your

configuration. The recommended configuration is two power modules connected

to one BAC (providing a redundant power source). For all configurations:

Make sure that the AC power cords are not connected to the power supply

until other wiring is completed.

Use 8 AWG solid or stranded wire.

Attach ring tongue terminals to the ends of the wires to be connected to the

BAC power terminal block. See the 8820 Broadband Access Concentrator

Installation Guide for more information.

Attach ring tongue terminals to the ends of the wires to be connected to the

power supply.

Strip 1/2 inch of insulation from the ends of the wires to be fastened at split

bolt connectors or the grounding lug of the BAC.

CAUTION:

The following procedures must be performed by a trained technician.

SERIAL

SMCM

CLOCK

ALARM

24681012141618

135

7911131517

LAN/WANSLOT

CLOCK

SERIAL

MCC

ALARM

48VRTN

48VNEG

POWERENTRYMODULE

LEFTUNIT:LINEA

RIGHTUNIT:LINEB

WARNING!

POWER MUST BE DISCONNECTED AT THE SOURCE

BEFOREREMOVING OR INSTALLING THIS PWR ENTRYMODULE

48VRTN

48VNEG

POWERENTRYMODULE

LEFTUNIT:LINEA

RIGHTUNIT:LINEB

WARNING!

POWER MUST BE DISCONNECTED AT THE SOURCE

BEFOREREMOVING OR INSTALLING THIS PWR ENTRYMODULE

00-15326a-02

PEM

Circuit

Breaker

48V RTN

48V NEG

POWER ENTRY MODULE

LEFT UNIT: LINE A

RIGHT UNIT: LINE B

WARNING! POWER MUST BE DISCONNECTED AT THE SOURCE

BEFORE REMOVING OR INSTALLING THIS PWR ENTRY MODULE

PEM

APEM

4June 2004 8800-A2-GZ41-20

Providing Redundant Power to One BAC (Recommended)

Procedure

To connect two power modules to one BAC (see Figure 1):

1. If none exist, install split bolt connectors or a grounding block near the rack

where the power supply and BAC reside.

NOTE:

Split bolt connectors are not supplied.

2. Connect:

— The grounding lug of the BAC to an earth ground.

— The PWR A –48V terminal of the BAC to the –48VA terminal of the power

supply.

— The PWR A RTN terminal of the BAC to a split bolt connector.

— The 0VRA terminal of the power supply to the split bolt connector.

— The PWR B -48V terminal of the BAC to the –48VB terminal of the power

supply.

— The PWR B RTN terminal of the BAC to a split bolt connector.

— The 0VRB terminal of the power supply to the split bolt connector.

— The split bolt connectors to an earth ground.

3. Verify that the power switches of the PEMs and the power modules are in the

off (0) position.

4. Insert the AC power cords into the Input A and Input B sockets at the rear of

the power supply. Plug the other ends into an AC power source.

5. Turn to the On (1) position the power switches of PEM A and PEM B of the

BAC and both power modules. Verify that the POWER LEDs at the front of the

power modules and the POWER A and POWER B LEDs at the top of the BAC

are on.

8800-A2-GZ41-20 June 2004 5

Figure 1. One BAC Powered by Two Power Modules

18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

04-16717-02

CAUTION: USE NO. 8 AWG ONLY

 48V

RTN

PWR APWR B

 48V

RTN

0VRB -48VB -48VA 0VRA

Split Bolt

Connectors

AC to DC Power Supply

Grounding Lug

to E rth Ground

E rth

Ground

6June 2004 8800-A2-GZ41-20

Providing Non-Redundant Power to One BAC

Procedure

To connect one power module to one BAC (see Figure 2):

1. If none exists, install a split bolt connector or grounding block near the rack

where the power supply and BAC reside.

NOTE:

Split bolt connectors are not supplied.

2. Connect:

— The grounding lug of the BAC to an earth ground.

— The PWR A –48V terminal of the BAC to the –48VA terminal of the power

supply.

— The PWR A RTN terminal of the BAC to the split bolt connector.

— The 0VRA terminal of the power supply to the split bolt connector.

— The split bolt connector to an earth ground.

3. Verify that the power switches of the PEMs and the power module are in the

off (0) position.

4. Insert the AC power cord into the Input A socket at the rear of the power

supply. Plug the other end into an AC power source.

5. Turn to the On (1) position the power switches of PEM A and the power

module. Verify that the POWER LED at the front of the power module and the

POWER A LED at the top of the BAC are on.

8800-A2-GZ41-20 June 2004 7

Figure 2. One BAC Powered by One Power Module

18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

04-16715-02

CAUTION: USE NO. 8 AWG ONLY

 48V

RTN

PWR APWR B

 48V

RTN

0VRB -48VB -48VA 0VRA

Split Bolt

Connectors

AC to DC Power Supply

Grounding Lug

to E rth Ground

E rth

Ground

8June 2004 8800-A2-GZ41-20

Providing Non-Redundant Power to Two BACs

Procedure

To connect two power modules to two BACs (see Figure 3):

1. If none exist, install split bolt connectors or a grounding block near the rack

where the power supply and BACs reside.

NOTE:

Split bolt connectors are not supplied.

2. Connect:

— The grounding lugs of the BACs to an earth ground.

— The PWR A –48V terminal of the first BAC to the –48VA terminal of the

power supply.

— The PWR A RTN terminal of the first BAC to a split bolt connector.

— The 0VRA terminal of the power supply to the split bolt connector.

— The PWR A –48V terminal of the second BAC to the –48VB terminal of

the power supply.

— The PWR A RTN terminal of the second BAC to a split bolt connector.

— The 0VRB terminal of the power supply to the split bolt connector.

— The split bolt connectors to an earth ground.

3. Verify that the power switches of the PEMs and the power modules are in the

off (0) position.

4. Insert the AC power cords into the Input A and Input B sockets at the rear of

the power supply. Plug the other ends into an AC power source.

5. Turn to the On (1) position the power switches of PEM A of each BAC and both

power modules. Verify that the POWER LEDs at the front of the power

modules and the POWER A LEDs at the top of the BACs are on.

8800-A2-GZ41-20 June 2004 9

Figure 3. Two BACs Powered by Two Power Modules

18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

0VRB -48VB -48VA 0VRA

AC to DC Power Supply

04-16716-02

CAUTION: USE NO. 8 AWG ONLY

Split Bolt

Connectors

Grounding Lug

to E rth Ground

CAUTION: USE NO. 8 AWG ONLY

E rth

Ground

 48V

RTN

PWR APWR B

 48V

RTN

 48V

RTN

PWR APWR B

 48V

RTN

10 June 2004 8800-A2-GZ41-20

Warranty, Sales, Service, and Training Information

Contact your local sales representative, service representative, or distributor

directly for any help needed. For additional information concerning warranty, sales,

service, repair, installation, documentation, training, distributor locations, or

Paradyne worldwide office locations, use one of the following methods:

Internet: Visit the Paradyne World Wide Web site at www.paradyne.com.

(Be sure to register your warranty at www.paradyne.com/warranty.)

Telephone: Call our automated system to receive current information by fax

or to speak with a company representative.

— Within the U.S.A., call 1-800-870-2221

— Outside the U.S.A., call 1-727-530-2340

Document Feedback

We welcome your comments and suggestions about this document. Please mail

them to Technical Publications, Paradyne Corporation, 8545 126th Ave. N., Largo,

FL 33773, or send e-mail to userdoc@paradyne.com. Include the number and

title of this document in your correspondence. Please include your name and

phone number if you are willing to provide additional clarification.

.

*8800-A2-GZ41-20*

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