Intel® Server Chassis SC5300 5U Kit TPS Introduction
g
Revision History
Date Revision Number Modifications
June 18, 2004 1.0 Initial Release
June 25, 2004 1.1 Format Updates
July 20 , 2004 1.1.1 Format updates
Jan 5, 2005 1.2 SATA and SCSI backplane updates Incorporated T.H.
Comments. Added BRP Added Errata/Inte
Jan 16, 2006 1.3 SATA backplane updates – added SAS compatibility
Jan 16, 2006 1.31 Modified Sections 1.3 and 1.4
ration Appendix
Disclaimers
Information in this document is provided in connection with Intel® products. No license, express or
implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except
as provided in Intel's Terms and Conditions of Sale for such products, Intel assumes no liability
whatsoever, and Intel disclaims any express or implied warranty, relating to sale and/or use of Intel
products including liability or warranties relating to fitness for a particular purpose, merchantability, or
infringement of any patent, copyright or other intellectual property right. Intel products are not intended for
use in medical, life saving, or life sustaining applications. Intel may make changes to specifications and
product descriptions at any time, without notice.
Designers must not rely on the absence or characteristics of any features or instructions marked
"reserved" or "undefined." Intel reserves these for future definition and shall have no responsibility
whatsoever for conflicts or incompatibilities arising from future changes to them.
The Intel® Server Chassis SC5300 may contain design defects or errors known as errata which may
cause the product to deviate from published specifications. Current characterized errata are available on
request.
Intel Corporation server baseboards contain a number of high-density VLSI and power delivery
components that need adequate airflow to cool. Intel’s own chassis are designed and tested to meet the
intended thermal requirements of these components when the fully integrated system is used together. It
is the responsibility of the system integrator that chooses not to use Intel developed server building
blocks to consult vendor datasheets and operating parameters to determine the amount of air flow
required for their specific application and environmental conditions. Intel Corporation can not be held
responsible if components fail or the server board does not operate correctly when used outside any of
their published operating or non-operating limits.
Intel, Pentium, Itanium, and Xeon are trademarks or registered trademarks of Intel Corporation.
*Other brands and names may be claimed as the property of others.
Table 47. Maximum Maintenance Procedure Times.................................................... 87
Table 48. System Office Environment Summary.......................................................... 89
Revision 1.31
11
Introduction Intel® Server Chassis SC5300 5U Kit TPS
1. Introduction
This specification details the feature set of the Intel® Server Chassis SC5300, an entry-level
server chassis designed for Intel
®
server board products. The Server Chassis SC5300 series of
products are low cost, quick to integrate, and allow utilization of multiple platforms and
configurations. The Server Chassis SC5300 series comes in three configurations: 600-W
SC53000BASE, 730-W SC5300BRP, and 730-W SC5300LX. The configurations are
distinguishable from one another based primarily on power supply and cooling features.
1.1 Intel® Server Chassis SC5300 Design Features
The Intel® Server Chassis SC5300 series makes extensive use of tool-less hardware features
and, dependent upon configuration and upgrade features, provides redundant cooling and
redundant power supply capability. The following table lists the features for the SC5300BASE,
SC5300BRP, and SC5300LX configurations.
Table 1. Intel® Server Chassis SC5300BASE, SC5300BRP, and SC5300LX Features
Intel® Server Chassis
SC5300BASE
Power
Delivery
Includes one (1) fixed
600-W power factor
corrected (PFC) Intel
validated power supply
unit (PSU) with an
integrated cooling fan,
upgradeable to a
redundant (1+1) 730-W
PFC PSU
Intel® Server Chassis
SC5300BRP
Includes (1 of 2) redundant
730-W PFC module Intel
validated PSU. Each power
module includes an
integrated cooling fan.
Each redundant power
module includes one (1)
AC line input.
Intel® Server Chassis
SC5300LX
Includes (1 of 2) redundant
730-W PFC module Intel
validated PSU. Each power
module includes an
integrated cooling fan.
Each redundant power
module includes one (1)
AC line input.
System
Cooling
Peripheral
Bays
12 Revision 1.31
Two fixed, non-redundant
chassis fans: one (1) 120mm and one (1) 92-mm.
Upgradeable to redundant
cooling with optional
accessory kit. Both fans
are tool-less.
Three (3) tool-less, multimount 5.25-inch
peripheral bays
Two fixed, non-redundant
chassis fans: one (1) 120mm and one (1) 9-mm.
Upgradeable to redundant
cooling with optional
accessory kit. Both fans
are tool-less
Three (3) tool-less, multimount 5.25-inch peripheral
bays
Four tool-less, hot
swappable and redundant
chassis fans with handlemounted diagnostic failure
LEDs: two (2) 120-mm and
two (2) 92-mm.
Three (3) tool-less, multimount 5.25-inch peripheral
bays
Intel® Server Chassis SC5300 5U Kit TPS Introduction
Intel® Server Chassis
SC5300BASE
Drive Bays
(6+4) Bay
Layout
PCI Slots
Form Factor
Includes one (1) tool-less
fixed drive bay for up to
six (6) fixed IDE or SCSI
drives.
Introduction Intel® Server Chassis SC5300 5U Kit TPS
Intel® Server Chassis
SC5300BASE
Dimensions
(Rack)
Dimensions
(Pedestal)
Weight
Optional
Accessories
17.5-inch x 8.6-inch x
26.2-inch
17.5-inch x 8.6-inch x
26.9-inch
34.6 kg 36.2 kg 36.2 kg
Rack Conversion Kit
Rack Cable Management
Arm
Intel® Management
Module
Slim-line CD and Floppy
Carrier
Redundant Power Supply
Kit
Six (6) Drive Hot-swap
SCSI Backplane
Six (6) Drive Hot-swap
SATA.SAS backplane
Intel® Server Chassis
SC5300BRP
17.5-inch x 8.6-inch x
26.2-inch
17.5-inch x 8.6-inch x
26.9-inch
Rack Conversion Kit
Rack Cable Management
Arm
Intel® Management
Module
Slim-line CD and Floppy
Carrier
Redundant Power Supply
Kit
Six (6) Drive Hot-swap
SCSI Backplane
Six (6) Drive Hot-swap
SATA/SAS Backplane
Intel® Server Chassis
SC5300LX
17.5-inch x 8.6-inch x
26.2-inch
17.5-inch x 8.6-inch x
26.9-inch
Rack Conversion Kit
Rack Cable Management
Arm
Intel® Management
Module
Slim-line CD and Floppy
Carrier
Redundant Power Supply
Kit
Six (6) Drive Hot-swap
SCSI Backplane
Six (6) Drive Hot-swap
SATA/SAS Backplane
Four (4) Drive Hot-swap
SCSI Backplane
Redundant Cooling
Upgrade Kit
10-pack Branding /
Customization Panels
Four (4) Drive Fixed Drive
Bay
Unpainted Rack Top
Cover
Four (4) Drive Hot-swap
SCSI Backplane
Redundant Cooling
Upgrade Kit
10-pack Branding /
Customization Panels
Four (4) Drive Fixed Drive
Bay
Unpainted Rack Top Cover
Four (4) Drive Hot-swap
SCSI Backplane
Redundant Cooling
Upgrade Kit
10-pack Branding /
Customization Panels
Four (4) Drive Fixed Drive
Bay
Unpainted Rack Top Cover
Hot-plug PCI Kit
1.2 Intel® Server Chassis SC5300BASE Summary
The Intel® Server Chassis SC5300BASE is designed to address the entry-level market. It
includes a fixed single 600-W Power Factor Correction (PFC) non-redundant power supply,
which supports up to six hard drives. Two tachometer output fans are mounted in front of the
server board. Optional four- and six-drive SCSI hot swap drive bay kits provide upgrades to
allow support for 6 hot swap SCSI drives. An optional six-drive hot swap SATA/SAS drive bay
is also available. Three 5.25-inch half-height peripheral bays are available for installation of a
floppy drive, CD-ROM drive and/or other accessories. Standard chassis configuration is
pedestal. A rack mount conversion kit is available.
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Intel® Server Chassis SC5300 5U Kit TPS Introduction
1.3 Intel® Server Chassis SC5300BRP Summary
The Intel® Server Chassis SC5300BRP supports the redundant power capability of the
SC5300LX configuration and the fixed fan features of the SC5300BASE configuration. The
SC5300BRP configuration includes a single 730-W PFC power supply module. Two
tachometer output fans are mounted in front of the server board. When populating the server
chassis with a single power supply, the power supply must be populated in the first power
supply bay. A second 730-W module may be added to provide redundant power supply.
Optional four- and six-drive SCSI hot swap drive bay kits provide upgrades to allow support for
up to 10 hot swap SCSI drives. An optional six-drive hot swap SATA/SAS drive bay is also
available. Three 5.25-inch half-height peripheral bays are available for installations of a floppy
drive, CD-ROM drive and/or other accessories.
1.4 Intel® Server Chassis SC5300LX Summary
The Intel® Server Chassis SC5300LX supports redundant power and includes redundant fan
features. The SC5300LX configuration includes a single 730-W PFC power supply module.
When populating the server chassis with a single power supply, the power supply must be
populated in the first power supply bay. A second 730-W module may be added to provide
redundant power supply. Four LED hot swap tachometer output fans provide redundant
cooling. Optional four- and six-drive SCSI hot swap drive bay kits provide upgrades to allow
support for up to 10 hot swap SCSI drives. An optional six-drive hot swap SATA/SAS drive bay
is also available. Three 5.25-inch half-height peripheral bays are available for installation of a
floppy drive, CD-ROM drive and/or other accessories. The standard chassis configuration is
pedestal. A rack mount conversion kit is available.
Product Code Intel
Server
Board
SC5300BASE
Fixed 600-W
SC5300BRP
Hot Swap
Redundant
730-W
SC5300LX
Hot Swap
SE7520AF2
SE7520BD2
SE7525SP2
SE7525GP2
SE7520AF2
SE7520BD2
SE7520AF2
SE7520BD2
Table 2. Product Matrix
®
Optional
Hot Swap
SCSI/SAT
A/SAS
Drives
6-SCSI
6-
SATA/SAS
4-SCSI
6-SCSI
6-
SATA/SAS
4-SCSI
6-SCSI or 6-6-drive bay
Standard
Fixed Hard
Drive Bays
6-drive bay
4-drive bay
optional
accessory
is available
6-drive bay
4-drive bay
optional
accessory
is available
4-drive bay
Power Supply and
Required Power
Cord Configuration
Fixed 600-W PFC
Requires one power
cord
One 730-W PFC
module installed.
Second power
module is optional.
Requires one power
cord per module.
One 730-W PFC
module installed.
Hot
Swap
Fans
No Pedestal is
No Pedestal is
Yes Pedestal is
Pedestal/
Rack
Standard.
Rack
Conversion
Kit is an
accessory.
Standard.
Rack
Conversion
Kit is an
accessory.
Standard.
Revision 1.31
15
Introduction Intel® Server Chassis SC5300 5U Kit TPS
Redundant
730-W
SATA/SAS
4-SCSI
optional
accessory
is available
Second power
module is optional.
Requires one power
cord per module.
Rack
Conversion
Kit is an
accessory.
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Intel® Server Chassis SC5300 5U Kit TPS Chassis Features
2. Chassis Features
2.1 Chassis Dimensions and Weight
Shipping weights include packaging.
Complete systems configured with server board, accessories and hard disk drivers will have
The Intel® Server Chassis SC5300 is offered in one color configuration, black.
Table 4. System Color Code
Manufacturer Color Code
GE Black GE701
2.2.1 Pedestal and Rack Mount Features
The standard pedestal front bezel is a molded plastic door covering all drive bays. A key lock is
provided to prevent unauthorized access to the peripheral bays. A molded plastic sub-bezel is
located on the face of the chassis under the front bezel. The sub-bezel houses the front panel
buttons and light pipes for the front panel indicators. Each peripheral bay is covered with a
removable electromagnetic interference (EMI) shield.
Opening the exterior plastic door on the pedestal chassis accesses the hot swap hard drives.
An EMI shield is incorporated into the drive carrier design, eliminating the need for a separate
Revision 1.31
17
Chassis Features Intel® Server Chassis SC5300 5U Kit TPS
shield or door. This adds flexibility to the bezel design by making EMI performance independent
of the cosmetic plastic parts.
Customized bezels for OEM customers can be designed from the standard bezel design. OEM
snap-in branding panels are available.
In the rack mount configuration, the front door is removed and the sub-bezel becomes the front
panel for the rack mount system. The rack mount kit includes the chassis slides, rack handles,
front door hinge cover plate and intrusion switch modification hardware.
2.3 Security
A variety of chassis security options are provided at the system level:
1. A two-position key lock/switch will unlock the front bezel and side cover in the
pedestal configuration only. Rack mount configuration does not have a key lock.
2. For rack mounted systems, a removable padlock loop on the rear of the system
access cover can be used to prevent access to the microprocessors, memory, and
add-in cards. A variety of lock sizes can be accommodated by the 0.270-inch
diameter loop.
3. A Kensington* cable lock mounting hole is provided on the rear chassis I/O panel.
4. An intrusion switch for the side panel and front bezel door are standard. In the rack
mount configuration, only the system cover has an active intrusion switch. Note: See
the appropriate Server Board Technical Product Specification on the
support.intel.com website for a description of BIOS and Intel
security features. Intrusion switches are provided allowing server management
software, such as Intel
®
Server Management (ISM), to detect unauthorized access to
the system cover and pedestal bezel door.
®
Server Management
2.4 I/O Panel
All input/output (I/O) connectors are accessible on the rear of the chassis. The SSI E-bay 3.5compliant chassis provides an ATX* 2.03-compatible cutout for I/O shield installation. Boxed
server boards provide the required I/O shield for installation in the cutout. The I/O cutout
dimensions are shown in the following figure.
The rear I/O panel conforms to the Advanced Technology Extended (ATX) Specification,
Revision 2.1, and supports seven full-length expansion PCI adaptor cards.
R 0.039 MAX, TYP
1.750 ± 0.0 08
(0.150)
I/O Aperture
Figure 1. ATX* 2.03 I/O Aperture
0.100 Min keepout around opening
Baseboard
5.196 ± 0.0106.250 ± 0.008
Datum 0,0
(0.650)
18 Revision 1.31
Intel® Server Chassis SC5300 5U Kit TPS Chassis Features
2.5 Standard and Optional Hot Swap Drive Bays
One fixed bay, supporting six cabled drives, ships with the standard chassis. An optional fourdrive bay for cabled (fixed) drives is available. Optional four- and six-drive hot swap bays are
also available and may be installed to replace either the six- or four-drive fixed bays. No tools
are required to replace the fixed drive bays. An optional six drive hot swap SATA/SAS bay is
also available. See the appendix for a full list of accessories.
2.6 5.25-inch Half-height Peripheral Bays
Three 5.25-inch, half-height drive bays are available for installation of a floppy drive, CD-ROM
drive or tape drive. The chassis ships with a 3.5-inch floppy or fixed drive carrier installed in the
top 5.25-inch drive bay and two empty 5.25-inch drive bays. Tool-less mounting rails are
included for all three drive bays and attach without screws.
Chassis Features Intel® Server Chassis SC5300 5U Kit TPS
2.7 Chassis Views
1
12
2
Intel® Server Chassis
SC5300 with Base
Components
7
3
4
5
6
8
9
10
11
1.Fixed Power Supply
2.PCI Add-in Card Panel
3.Upper Air Duct
4.Lower Air Duct
5.Fixed Fans (2)
6.HDD Cage Release
Mechanisms (2)
7.Front Panel Control
8.5.25" Device Bays (3)
9.Front Panel USB/Serial B
10.Fixed Drive Cage - 4 Drive
(accessory)
11.Fixed Drive Cage - 6 Drive
12.Rear Serial-B Connector
Figure 3. Intel® Server Chassis SC5300BASE Components
1
2
14
3
Intel® Server Chassis
SC5300 LX with Hot
Swap Components
TP00901
1.Hot Swap Power Supply
2.Second Hot Swap Power
Supply (accessory)
3.PCI Add-in Card Panel
4.Upper Air Duct
5.Lower Air Duct
6.Hot Swap Fans - Large (2)
9
4
6
5
10
11
12
7.Hot Swap Fans - Small (2)
8.HDD Cage Release
Mechanisms (2)
9.Front Panel Control
10.5.25" Device Bays (3)
11.Front Panel USB/Serial B
12.Hot Swap Drive Cage - 4 Drive
(accessory)
13.Hot Swap Drive Cage - 6 Drive
14.Rear Serial-B Connector
8
7
13
TP00900
Figure 4. Intel® Server Chassis SC5300LX Components
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Intel® Server Chassis SC5300 5U Kit TPS Chassis Features
Figure 5. Rack Configuration with Sub-bezel and Right Side Panel Removed
Revision 1.31
21
Chassis Power Subsystem Intel® Server Chassis SC5300 5U Kit TPS
3. Chassis Power Subsystem
The Server Chassis SC5300 power supplies are Server System Infrastructure (SSI) compliant.
The SSI specifications may be found at the following website:
W and 730-W power supplies have identical power supply wire harness cable lengths to
peripheral bays and server board.
3.1 600-W Power Supply
The 600-W power supply has eight outputs: 3.3V, 5V, 12V1, 12V2, 12V3, 12V4, -12V, and 5Vsb
(standby). The 600-W power supply contains a single 80-mm fan for cooling the power supply,
which also provides part of the system cooling. The 12V six-pin power connector is for the 150W PCI-E (video) cards, which require an external 75-W power connector.
3.1.1 Mechanical Outline
The power supply size is 150mm x 180mm x 86mm and has a wire harness for the DC outputs.
The AC power cord plugs directly into the external face of the power supply.
www.ssifourm.org. Both the 600-
22 Revision 1.31
Intel® Server Chassis SC5300 5U Kit TPS Chassis Power Subsystem
Note: All dimensions are in mm.
3.1.2 Output Wire Harness
Listed or recognized component appliance wiring material (AVLV2), CN, rated min 105°C,
300VDC shall be used for all output wiring. Cable length, connector number and description are
identical for both the 600-W and 730-W power supplies.
Revision 1.31
23
Chassis Power Subsystem Intel® Server Chassis SC5300 5U Kit TPS
Table 5. 600-W and 730-W Power Supply Cable Lengths
From
Power Supply cover exit
hole
Power Supply cover exit
hole
Power Supply cover exit
hole
Power Supply cover exit
hole
Power Supply cover exit
hole
Extension 100 P4 4 Peripheral Power Connector
Extension from P4 100 P5 4 Floppy Power Connector
Power Supply cover exit
hole
Extension
Power Supply cover exit
hole
Length
(mm)
425 P1 24 Baseboard Power Connector
375 P2 8 Processor Power Connector
375 P14 5 Power Signal Connector
375 P15 6 PCI Express Connector
450 P3 4 Peripheral Power Connector
575 P6 4 Peripheral Power Connector
75 (cover
with sleeve)
740
To
connector
#
P7 4
P8 4 Peripheral Power Connector
Number
of pins
Description
Right-angle Peripheral
Power Connector
Extension 75 P9 4 Peripheral Power Connector
Power Supply cover exit
hole
Extension 75 P11 4 Peripheral Power Connector
Power Supply cover exit
hole
Extension 75 P13 5 SATA Power Connector
740
740
P10 4 Peripheral Power Connector
P12 5
Right-angle SATA Power
Connector
The output cable harness and connectors is detailed in the following figure.
24 Revision 1.31
Intel® Server Chassis SC5300 5U Kit TPS Chassis Power Subsystem
Notes: (1) All dimensions are in mm. (2) All tolerances are +15-0mm. 3. (3) Install 1 tie wrap within 12 mm of PSU
case. (4) Mark reference designator on each connector. (5) Tie wrap each harness at approximately mid point or
point shown.
Figure 6. Output Cable Harness for 600-W and 700-W Power Supplies
Revision 1.31
25
Chassis Power Subsystem Intel® Server Chassis SC5300 5U Kit TPS
3.1.2.1 Baseboard power connector (P1)
Connector housing: 24-Pin Molex* Mini-Fit Jr. 39-01-2245 or equivalent
Contact: Molex Mini-Fit, HCS, Female, Crimp 44476 or equivalent
Table 6. Baseboard Power Connector P1 Pin-out
Pin Signal 18 AWG Color Pin Signal 18 AWG Color
1* +3.3VDC Orange 13 +3.3VDC Orange
3.3V RS Orange (24AWG) 14 -12VDC Blue
2 +3.3VDC Orange 15 COM Black
3* COM Black 16 PSON# Green
COM RS Black (24AWG) 17 COM Black
4* +5VDC Red 18 COM Black
5V RS Red (24AWG) 19 COM Black
5 COM Black 20 Reserved N.C.
6 +5VDC Red 21 +5VDC Red
7 COM Black 22 +5VDC Red
8 PWR OK Gray 23 +5VDC Red
9 5 VSB Purple 24 COM Black
10 +12V3 Yellow
11 +12V3 Yellow
12 +3.3VDC Orange
* Remote Sense wire double crimped.
3.1.2.2 Processor Power Connector (P2)
Connector housing: 8-Pin Molex 39-01-2080 or equivalent
Contact: Molex 44476-1111 or equivalent
Table 7. Processor Power Connector P2
Pin Signal 18 AWG color Pin Signal 18 AWG Color
1 COM Black 5* +12V1 White
2 COM Black 12V1 RS Yellow (24AWG)
3 COM Black 6 +12V1 White
4 COM Black 7 +12V2 Brown
8* +12V2 Brown
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Intel® Server Chassis SC5300 5U Kit TPS Chassis Power Subsystem
Pin Signal 18 AWG color Pin Signal 18 AWG Color
12V2 RS Yellow (24AWG)
3.1.2.3 Power Signal Connector (P13)
Connector housing: 5-pin Molex 50-57-9405 or equivalent
Contacts: Molex 16-02-0087 or equivalent
Table 8. Power Signal Connector P13
Pin Signal 24 AWG Color
1 I2C Clock White
2 I2C Data Yellow
3 Reserved N.C.
4 COM Black
5 3.3RS Orange
3.1.2.4 Peripheral Power Connectors (P3, P4, and P6, P8 – P11)
Connector housing: Amp 1-480424-0 or equivalent
Contact: Amp 61314-1 contact or equivalent
Table 9. Peripheral Power Connectors
Pin Signal 18 AWG Color
1 +12V4 Green
2 COM Black
3 COM Black
4 +5 VDC Red
Revision 1.31
27
Chassis Power Subsystem Intel® Server Chassis SC5300 5U Kit TPS
3.1.2.5 Floppy Power Connector (P6)
Connector housing: Amp 171822-4 or equivalent
Contact: Amp 170204-1 contact or equivalent
1 +12V4 Green 4 COM Black
2 +12V4 Green 5 COM Black
3 +12V4 Green6COMBlack
3.1.3 600-W Power Supply Airflow and Temperature Rise
The power supply incorporates one 80-mm fan for self-cooling and system cooling. The fan
provides 14 CFM airflow through the power supply when installed in the system. The cooling air
enters the power module from the non-AC side.
The power supply meets UL enclosure requirements for temperature rise limits. All sides of the
power supply, with exception to the air exhaust side, are classified as “Handle, knobs, grips,
etc., held for short periods of time only.”
3.1.4 AC Specifications
The power supply incorporates universal power input with active power factor correction, which
reduces line harmonics in accordance with the EN61000-3-2 and JEIDA MITI standards.
28 Revision 1.31
Intel® Server Chassis SC5300 5U Kit TPS Chassis Power Subsystem
3.1.4.1 AC Inlet Connector
The AC input connector is an IEC 320 C-14 power inlet. This inlet is rated for 10A / 250VAC.
3.1.4.2 AC Input Voltage Specification
The power supply operates within all specified limits over the following input voltage range (see
the following table). The power supply shall power off if the AC input is less than 75-80VAC
ranges. The power supply operates properly starting at 80-85VAC input voltages.
Table 12. AC Input Ratings
I
PARAMETER MIN RATED V
MAX
MAX
Voltage (110) 90 V
100-127
rms
V
rms
Voltage (220) 180 Vrms 200-240
V
rms
140 V
264 V
10 A
rms
5 A
rms
1, 3
2, 3
Frequency 47 Hz 50/60 63 Hz
Start up
VAC
85VAC +/4VAC
Power Off
VAC
75VAC +/5VAC
Notes:
(1) Maximum input current at low input voltage range shall be measured at 90VAC, at max load.
(2) Maximum input current at high input voltage range shall be measured at 180VAC, at max load.
(3) This requirement is not to be used for determining agency input current markings.
3.1.4.3 Efficiency
The 600-W power supply has an efficiency of 68% at maximum load and over the specified AC
voltage.
3.1.4.4 AC Line Dropout / Holdup
An AC line dropout occurs when the AC input drops to zero VAC at any phase of the AC line for
any length of time. During an AC dropout of one cycle or less, the power supply meets dynamic
voltage regulation requirements over the rated load. An AC line dropout of 1 cycle or less (20
ms min) shall not cause any tripping of control signals or protection circuits. If the AC dropout
lasts longer than one cycle, the power supply should recover and meet all turn-on requirements.
The power supply meets the AC dropout requirement over rated AC voltages, frequencies, and
output loading conditions. Any dropout of the AC line does not cause damage to the power
supply.
3.1.4.5 AC Line Fuse
The power supply has one line fused in the single line fuse on the line (hot) wire of the AC input.
The input fuse is a slow blow type. AC inrush current does not cause the AC line fuse to blow
under any conditions. Not all protection circuits shall cause the AC fuse to blow unless a
component in the power supply has failed. This includes DC output load short conditions.
Revision 1.31
29
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