Quick Installation and Reference for the Model

893823ABook Page i Friday, October 25, 1996 1:15 PM
Quick Installation and
Reference for the
Model RPSU
Redundant Power
Supply Unit
Bay Networks, Inc. Corporate Headquarters
4401 Great America Parkway
Santa Clara, CA 95054
8 Federal Street
Billerica, MA 01821
September 1995
*893-823-A*
893823ABook Page ii Friday, October 25, 1996 1:15 PM
© 1995 by Bay Networks, Inc. All rights reserved.
Trademarks
Bay Networks and Bay Networks Press are trademarks of Bay Networks, Inc.
Other brand and product names are registered trademarks or trademarks of their respective holders.
Statement of Conditions
In the interest of improving internal design, operational function, and/or reliability, Bay Networks, Inc. reserves the right to
make changes to the products described in this document without notice.
Bay Networks, Inc. does not assume any liability that may occur due to the use or application of the product(s) or circuit
layout(s) described herein.
Ordering Bay Networks Publications
To purchase additional copies of this document or other Bay Networks™ publications, order by part number from Bay
Networks Press™ at the following numbers; you may also request a free catalog of Bay Networks Press product publications.
•
Phone: 1-800-845-9523
•
FAX: U.S./Canada 1-800-582-8000, International 1-916-939-1010
Bay Networks Customer Support
For information about a wide range of customer support services, call 1-800-2LANWAN.
ii
893823ABook Page 3 Friday, October 25, 1996 1:15 PM
Introduction
The Model RPSU Redundant Power Supply Unit converts AC power from the wall socket to DC power
for Bay Networks™ stackable devices that support the Model RPSU power supply. The Model RPSU
power supply provides primary or backup DC power for up to four stackable devices. Two
AC power entry receptacles on the power supply allow you to connect the unit to two separate input
circuits to provide another level of redundancy. The Model RPSU power supply is normally installed at
the bottom of a stack, except when there are cable length limitations for specific devices.
This document provides the following information:
•
Features of the power supply
•
Typical system applications
•
Installing the power supply on a table or in an equipment rack
•
Connection and power-on sequence
•
Disconnecting the power supply from a device or a device stack
•
LEDs on the power supply
•
Technical specifications
Features
The Model RPSU power supply has the
following features:
•
Two AC power input receptacles with on/off
switches (see figure at right).
•
Four DC power outputs for connection to
Bay Networks stackable devices using
supplied 3-foot DC power cables.
•
Redundant and current-sharing AC
operation. When each AC input is connected
to a separate building circuit, the power
supply is being powered redundantly with
independent AC feeds.
•
Short circuit and over-voltage protection.
•
LEDs that indicate operating status of the
power supply and the power system in the
stack.
•
Rack or table installation options.
On/off switches
AC receptacles
DC output
connectors
6150
•
Warm plug capability that allows you to add
a device to an operating stack powered by
the power supply, without shutting down the
system. For specific details about
connect-ing a device, refer to the user
documentation that was shipped with that
device.
3
893823ABook Page 4 Friday, October 25, 1996 1:15 PM
Typical System Applications
Primary Power Source to the Stack
All devices in the stack are powered by the
Model RPSU power supply, which has redundant
AC inputs. None of the stack devices is
connected directly to an AC power source.
RPSU
To AC power
6113
Backup Power for the Stack
All devices in the stack are powered by the local
AC/DC power, with the Model RPSU power
supply as a backup power source.
To AC
power
RPSU
To AC
power
6114
NOTE: Although the Model RPSU power supply is usually positioned below the devices it
is powering, it is not always possible to place additional power supplies below the higher
devices in a full stack. For example, the cascade cables used to connect devices in a stack
may be too short to reach across the power supply. In such cases, place the second power
supply on top of the stack, above the devices it is powering. Please remember to check the
dimensions of the devices and the lengths of the cables when you plan the installation of a
stack that requires more than one Model RPSU power supply.
4
893823ABook Page 5 Friday, October 25, 1996 1:15 PM
Redundancy for High-Powered
Devices
One device is attached to two DC power output
connectors on the Model RPSU power supply.
To AC
power
RPSU
To AC
power
6151
CAUTION: Damage may occur to a high-powered device if you do not follow the proper
installation and power-on sequence. For specific details about connecting a high-powered
device, refer to the user documentation that was shipped with that device.
Primary or Backup Power for Different Stacked Devices
The Model RPSU power supply is connected to two or more types of stacked devices. Certain devices
may or may not need the Model RPSU power supply as a backup power source. The Model RPSU
power supply provides either primary or backup power to the devices.
To AC
power
RPSU
To AC
power
To AC
power
6115
NOTE: Both AC power cords for the Model RPSU power supply must be plugged into
AC outlets for the power supply to operate correctly.
5
893823ABook Page 6 Friday, October 25, 1996 1:15 PM
Unpacking
AC power cord (x2)
Model RPSU
Redundant Power Supply Unit
Documentation
Feet
DC power cable (x4)
Feet
Brackets
Screw
& s
Screws and
washers
6071
Option 1: Table Mounting
RPSU
Feet placement
guides
4642
1. Attach the self-adhesive feet to the
bottom of the power supply.
6
6075
2. Set the power supply on a table or shelf that
will support the combined weight of the
power supply and the other devices in the
stack. For weight specifications, refer to the
user documentation for the other devices.
893823ABook Page 7 Friday, October 25, 1996 1:15 PM
Option 2: Rack Installation
6078
1. Attach the brackets using the provided screws.
6080
2. Slide the power supply into the rack under the devices that will be connected to it.
6079
3. Insert and tighten the rack-mounting screws.
7
893823ABook Page 8 Friday, October 25, 1996 1:15 PM
Completing the Installation
dant
Redun
er
Pow
6081
6082
1. Connect one end of a DC cable to each
device in the stack.
2. Connect the other end of the DC cables
to the power supply.
6083
6122
3. (Optional) Connect the AC power cords on
the stacked devices to wall outlets.
4. Connect an AC power cord to each of the
two AC inputs on the power supply. Then
connect the cords to wall outlets that are on
two separate electrical circuits.
NOTE: You must connect both AC cords
for the power supply to work properly.
8
893823ABook Page 9 Friday, October 25, 1996 1:15 PM
6084
5. Turn on both power switches on the power supply.
RPSU
Pwr Input
Hub Power
A
Fan
1
2
3
4
B
Redundant Power
6118
6. To verify correct operation of the power supply, check the LEDs:
•
Pwr Input: Both green
•
Fan: Off
•
Hub Power: Green for each connected device that is also connected directly to an AC
circuit via that device’s own AC power supply
•
Redundant Power: On for each DC connector that is capable of delivering DC power to
an attached device
NOTE: To add a device to an operating stack that is powered by a Model RPSU power supply,
refer to the user documentation that was shipped with that device.
9
893823ABook Page 10 Friday, October 25, 1996 1:15 PM
Disconnecting a Model RPSU Power Supply
6117
1. Turn off both power switches on the power supply.
CAUTION: To be certain the power supply is completely without power, you must turn off
both switches.
6119
2. Disconnect the AC power cords from the wall and then from the power supply.
NOTE: The Hub Power and Fan LEDs remain lighted until all DC cables are disconnected.
10
893823ABook Page 11 Friday, October 25, 1996 1:15 PM
dant
Redun
er
Pow
6123
3. Disconnect all DC power cables from the devices in the stack and then from the power supply.
11
893823ABook Page 12 Friday, October 25, 1996 1:15 PM
LEDs
RPSU
Pwr Input
Hub Power
A
Fan
1
2
3
4
B
Redundant Power
6118
Label
Color/
status
Meaning
Pwr Input
A and B
Green
The specified power input receptacle is connected to an AC power source and
that power switch is turned on. If both LEDs light green, the unit is being powered
redundantly through both input receptacles.
Off
The specified input receptacle is not connected to an AC power source, or the
specified power switch is not turned on, or the power supply is not operating
correctly.
Note: If one of these LEDs does not light, and you have verified that the AC cord
is connected and the switch is turned on, replace the power supply.
Fan
Amber
One or more fans has stopped, and a fan fault signal has been sent to the network
management software by the devices in the stack.
Note: Although the power supply will continue to operate, system cooling is
compromised. Plan to replace the power supply as soon as you can. If the internal
temperature rises too much, a safety shutdown will occur.
Hub Power
1, 2, 3, 4
Redundant
Power
1, 2, 3, 4
12
Off
All fans are functioning normally.
Green
The device connected to the specified DC connector is also connected to an AC
power wall outlet through its own AC cord, and the internal power supply for the
device is operating correctly.
Off
The device connected to the specified DC connector is not connected to any other
power source, or the internal power supply for the device is not operating
correctly.
Green
The redundant power supply is capable of supplying power to a device through
the specified DC connector.
Off
The redundant power supply is not capable of supplying power to a device
through the specified DC connector. You should replace the redundant power
supply.
893823ABook Page 13 Friday, October 25, 1996 1:15 PM
Technical Specifications
Electrical
Line frequency:
47 to 63 Hz
Volt amperes rating: 1000 VA
Input power:
925 W
Input voltage:
100 to 240 V
Input current rating: 10 to 4.17 A
Output voltages:
+5 V @ 20 A
+12 V @ 2.5 A
–12 V @ 0.5 A
Fuses:
Internal, not accessible to user
Thermal rating
4341 BTU maximum
Physical
Dimensions:
(H) 3.5 in x (W) 17.25 in x (D) 16.8 in
(H) 8.9 cm x (W) 43.8 cm x (D) 42.7 cm
Weight:
28 lb (12.60 kg)
Electromagnetic
susceptibility
IEC 801-4:
IEC 801-5:
IEC 801-2:
Electrical fast transient/burst, level 3
Surge/single pulse, level 3
10 random discharges, level 3 with no damage
Safety agencies
UL-listed; UL 1950
CSA-certified; CSA 22.2 #950
TUV-licensed; EN 60 950
13
893823ABook Page 14 Friday, October 25, 1996 1:15 PM
14
893823ABook Page 15 Friday, October 25, 1996 1:15 PM
Federal Communications Commission (FCC) Statement
Note: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of
the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy. If it is not
installed and used in accordance with the instruction manual, it may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference, in which case users will be required to
take whatever measures may be necessary to correct the interference at their own expense.
EN 55 022 Declaration of Conformance
This is to certify that the Bay Networks Model RPSU Redundant Power Supply Unit is shielded against the generation of
radio interference in accordance with the application of Council Directive 89/336/EEC, Article 4a. Conformity is declared by
the application of EN 55 022:1987 Class B (CISPR 22:1985/BS 6527:1988).
Compliance with the applicable regulations is dependent upon the use of shielded data cables.
Bestätigung des Herstellers/Importeurs
Es wird hiermit bestätigt, daß das Model RPSU Redundant Power Supply Unit gemäß der im BMPT-AmtsblVfg 243/1991
und Vfg 46/1992 aufgeführten Bestimmungen entstört ist. Das vorschriftsmäßige Betreiben einiger Geräte (z.B. Testsender)
kann jedoch gewissen Beschränkungen unterliegen. Lesen Sie dazu bitte die Anmerkungen in der Betriebsanleitung.
Das Bundesamt für Zulassungen in der Telekommunikation wurde davon unterrichtet, daß dieses Gerät auf den Markt
gebracht wurde und es ist berechtigt, die Serie auf die Erfüllung der Vorschriften hin zu überprüfen.
Die Erfüllung der zutreffenden Vorschriften hängt von der Benutzung geschirmter Kabel ab. Der Benutzer ist für den Erwerb
der entsprechenden Kabel verantwortlich.
Certificate of the Manufacturer/Importer
It is hereby certified that the Model RPSU Redundant Power Supply Unit has been suppressed in accordance with the
conditions set out in the BMPT-AmtsblVfg 243/1991 and Vfg 46/1992. The operation of some equipment (for example, test
transmitters) in accordance with the regulations may, however, be subject to certain restrictions. Please refer to the notes in
the operating instructions.
Federal Office for Telecommunications Approvals has been notified of the placing of this equipment on the market and has
been granted the right to test the series for compliance with the regulations.
Compliance with the applicable regulations is dependent upon the use of shielded data cables. It is the responsibility of the
user to procure the appropriate cables.
Voluntary Control Council for Interference (VCCI) Statement
This equipment is in the 1st category (information equipment to be used in commercial and/or industrial areas) and conforms
to the standards set by the Voluntary Control Council for Interference by Data Processing Equipment and Electronic Office
Machines that are aimed at preventing radio interference in commercial and/or industrial areas.
Consequently, when this equipment is used in a residential area or in an adjacent area thereto, radio interference may be
caused to equipment such as radios and TV receivers.
Compliance with the applicable regulations is dependent upon the use of shielded AC power cables. The user is responsible
for procuring the appropriate cables. Read instructions for correct handling.
15
Download PDF