Intel SR2400 Configuration guide

Intel® Server Chassis SR2400
Technical Product Specification
Intel order number C78845-001
Revision 1.0
September 2004
Enterprise Platforms and Services Marketing

Revision History Intel® Server Chassis SR2400
Revision 1.0
Intel order number C78845-001
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Revision History
Date Revision
Number
Modifications
Jan. 2004 0.52 Updated to reflect the Alpha hardware. First external release
July 2004 0.9 Added iLCP, updated diagrams, updated backplane info, updated riser card info,
increased over all detail.
September 2004 1.0 Final updates, and review. First non-NDA Release – Added content supporting
SE7320VP2, updated cooling section, updated regulatory section,

Intel® Server Chassis SR2400 Disclaimers
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Intel order number C78845-001
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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.
This document contains information on products in the design phase of development. Do not
finalize a design with this information. Revised information will be published when the product
is available. Verify with your local sales office that you have the latest datasheet before
finalizing a design.
The Intel® Server Chassis SR2400 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.
This document and the software described in it is furnished under license and may only be used
or copied in accordance with the terms of the license. The information in this manual is
furnished for informational use only, is subject to change without notice, and should not be
construed as a commitment by Intel Corporation. Intel Corporation assumes no responsibility or
liability for any errors or inaccuracies that may appear in this document or any software that may
be provided in association with this document.
Except as permitted by such license, no part of this document may be reproduced, stored in a
retrieval system, or transmitted in any form or by any means without the express written consent
of Intel Corporation.
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.
Copyright © Intel Corporation 2004.

Table of Contents Intel® Server Chassis SR2400
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Table of Contents
1. Product Overview................................................................................................................. 1
1.1 Chassis Views ......................................................................................................... 1
1.2 Chassis Dimensions ................................................................................................ 2
1.3 System Components ............................................................................................... 2
1.4 Hard Drive and Peripheral Bays .............................................................................. 4
1.5 Control Panel Options.............................................................................................. 5
1.6 Power Sub-system................................................................................................... 6
1.7 System Cooling........................................................................................................ 7
1.8 Chassis Security ...................................................................................................... 7
1.9 Rack and Cabinet Mounting Options ....................................................................... 7
1.10 Front Bezel Features ............................................................................................... 7
2. Power Sub-system ...............................................................................................................9
2.1 Mechanical Overview............................................................................................... 9
2.2 Power Module Population........................................................................................ 9
2.3 Handle and Retention Mechanism......................................................................... 10
2.4 Hot Swap Support.................................................................................................. 10
2.5 Airflow .................................................................................................................... 10
2.6 Output Cable Harness ........................................................................................... 10
2.6.1 P1 – Baseboard Power Connector ........................................................................ 11
2.6.2 P2 – Processor Power Connector .........................................................................11
2.6.3 P3 – Power Signal Connector................................................................................ 12
2.6.4 P4 – Hard Drive / Backplane Power Connector..................................................... 12
2.6.5 P5 – Peripheral Power Connector ......................................................................... 12
2.7 AC Input Requirements .........................................................................................12
2.7.1 AC Inlet Connector ................................................................................................13
2.7.2 Efficiency ............................................................................................................... 13
2.7.3 AC Input Voltage Specification .............................................................................. 13
2.7.4 AC Line Dropout / Holdup...................................................................................... 13
2.7.5 AC Line Fuse ......................................................................................................... 14
2.7.6 AC Inrush............................................................................................................... 14
2.7.7 AC Line Surge .......................................................................................................14
2.7.8 AC Line Transient Specification............................................................................. 14
2.7.9 AC Line Fast Transient (EFT) Specification ..........................................................15
2.7.10 AC Line Leakage Current ...................................................................................... 15
2.8 DC Output Specification ........................................................................................15

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2.8.1 Power Supply Mating Connector ........................................................................... 15
2.8.2 Grounding .............................................................................................................. 17
2.8.3 Standby Output / Standby Mode............................................................................ 17
2.8.4 Remote Sense ....................................................................................................... 17
2.8.5 Power Module Output Power / Currents ................................................................ 17
2.8.6 +12V Outputs Load Requirements ........................................................................18
2.8.7 DC/DC Converters Loading ................................................................................... 18
2.8.8 DC/DC Converters Voltage Regulation ................................................................. 18
2.8.9 DC/DC Converters Dynamic Loading .................................................................... 19
2.8.10 DC/DC Converter Capacitive Loading ................................................................... 19
2.8.11 DC/DC Converters Closed Loop stability............................................................... 19
2.8.12 Common Mode Noise ............................................................................................ 19
2.8.13 DC/DC Converters Ripple / Noise ......................................................................... 19
2.8.14 Timing Requirements............................................................................................. 20
2.8.15 Residual Voltage Immunity in Standby Mode ........................................................ 21
2.9 Protection Circuits.................................................................................................. 21
2.9.1 Over-Current Protection (OCP)............................................................................ 21
2.9.2 Over Voltage Protection (OVP)............................................................................. 22
2.9.3 Over Temperature Protection (OTP)..................................................................... 23
2.10 SMBus Monitoring Interface ..................................................................................23
2.10.1 Hot Plug I2C Requirements ................................................................................... 24
2.10.2 Power Supply Failure Communication................................................................... 24
2.10.3 LED Control ........................................................................................................... 24
3. Cooling Subsystem............................................................................................................ 25
3.1 4+4 System Fan Module........................................................................................ 25
3.2 Fan Redundancy ................................................................................................... 27
3.3 Air Flow Support .................................................................................................... 28
3.3.1 Power Supply Zone ...............................................................................................28
3.3.2 Full Height Riser Zone ........................................................................................... 28
3.3.3 CPU / Memory / Low Profile PCI Zone .................................................................. 28
3.4 Drive Bay Population ............................................................................................. 29
4. Peripheral and Hard Drive Support................................................................................... 29
4.1 Slimline Drive Bay.................................................................................................. 29
4.1.1 Floppy Drive Support ............................................................................................. 29
4.1.2 IDE Optical Drive Support...................................................................................... 31
4.2 Hard Disk Drive Bays............................................................................................. 33
4.2.1 Hot Swap Drive Trays............................................................................................ 33
4.2.2 Fixed Mount Drive Trays........................................................................................ 34

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4.3 Hot-Swap SCSI Backplane.................................................................................... 35
4.3.1 Hot-Swap SCSI Backplane Placement and Board Layout..................................... 35
4.3.2 SCSI Backplane Functional Architecture............................................................... 36
4.3.3 SCSI Backplane Connector Definitions ................................................................. 38
4.3.4 Optional 6Th SCSI Drive ......................................................................................... 44
4.4 Hot-Swap SATA Backplane................................................................................... 45
4.4.1 SATA Backplane Layout........................................................................................ 45
4.4.2 SATA Backplane Functional Architecture.............................................................. 46
4.4.3 LEDs ...................................................................................................................... 48
4.4.4 SATA Backplane Connectors ................................................................................ 49
4.4.5 Optional 6th SATA Drive Board Functional Architecture ........................................ 52
4.5 Optional Tape Drive or 6th Hard Drive Bay ............................................................ 54
5. Standard Control Panel ..................................................................................................... 55
5.1 Control Panel Buttons........................................................................................... 55
5.2 Control Panel LED Indicators ................................................................................56
5.2.1 Power / Sleep LED ................................................................................................57
5.2.2 System Status LED................................................................................................ 57
5.2.3 Drive Activity LED .................................................................................................. 58
5.2.4 System Identification LED...................................................................................... 58
5.3 Control Panel Connectors...................................................................................... 58
5.4 Internal Control Panel Assembly Headers............................................................. 59
6. Intel® Local Control Panel................................................................................................. 61
6.1 LED Functionality................................................................................................... 62
6.1.1 Power / Sleep LED ................................................................................................62
6.1.2 System Status LED................................................................................................ 62
6.1.3 Drive Activity LED .................................................................................................. 63
6.1.4 System Identification LED...................................................................................... 63
6.2 Internal Control Panel Headers .............................................................................63
7. PCI Riser Cards and Assembly......................................................................................... 66
7.1 PCI Riser Card Mechanical Drawings ................................................................... 67
8. Supported Intel® Server Boards....................................................................................... 69
8.1 Intel Server Board SE7520JR2.............................................................................. 69
8.1.1 Server Board SE7520JR2 SKU Availability ........................................................... 69
8.1.2 Server Board SE7520JR2 Feature Set.................................................................. 69
8.2 Intel Server Board SE7320VP2 ............................................................................. 73
8.2.1 Intel Server Board SE7320VP2 SKU Availability................................................... 73
8.2.2 Intel Server Board SE7320VP2 Feature Set ......................................................... 73
9. Regulatory, Environmentals, and Specifications............................................................ 75

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9.1 Product Regulatory Compliance ............................................................................ 75
9.1.1 Product Safety Compliance ................................................................................... 75
9.1.2 Product EMC Compliance ..................................................................................... 75
9.1.3 Product Regulatory Compliance Markings ............................................................ 76
9.2 Electromagnetic Compatibility Notices ..................................................................76
9.2.1 USA ....................................................................................................................... 76
9.2.2 FCC Verification Statement ................................................................................... 77
9.2.3 ICES-003 (Canada) ............................................................................................... 77
9.2.4 Europe (CE Declaration of Conformity) ................................................................. 77
9.2.5 Japan EMC Compatibility ......................................................................................78
9.2.6 BSMI (Taiwan) ....................................................................................................... 78
9.2.7 Korean RRL Compliance ....................................................................................... 78
9.3 Replacing the Back up Battery .............................................................................. 78
9.4 System Level Environmental Limits....................................................................... 79
9.5 Serviceability and Availability................................................................................. 79
9.6 Regulated Specified Components ......................................................................... 80
Appendix A: SR2400 Integration and Usage Tips.................................................................. 82

List of Figures Intel® Server Chassis SR2400
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List of Figures
Figure 1. Front View with optional Bezel.......................................................................................1
Figure 2. Front View without Bezel (Shown with Standard Control Panel option) ........................ 1
Figure 3. Back View – (Shown with 1+1 Power Supply Configuration)......................................... 1
Figure 4. Major Chassis Components........................................................................................... 2
Figure 5. Back Panel Feature Overview ....................................................................................... 3
Figure 6. Front Panel Feature Overview....................................................................................... 4
Figure 7. Control Panel Modules ..................................................................................................5
Figure 8. Standard Control Panel Overview ................................................................................. 5
Figure 9. LCD Contol Panel Overview .......................................................................................... 6
Figure 10. Optional Front Bezel .................................................................................................... 7
Figure 11. Front Bezel Supporting Standard Control Panel.......................................................... 8
Figure 12. Front Bezel Supporting Intel Local Control Panel........................................................ 8
Figure 13. Mechanical Drawing for Dual (1+1 configuration) PS enclosure with PDB.................. 9
Figure 14. Power Module Edge Connector View ....................................................................... 16
Figure 15. Turn On/Off Timing (Power Supply/PDB combo Signals)......................................... 21
Figure 16. Fan Distribution Board Layout ................................................................................... 25
Figure 17. Fan Module Assembly ............................................................................................... 27
Figure 18. CPU Air Duct with Air Baffle ......................................................................................28
Figure 19. Drive Blank ................................................................................................................ 29
Figure 20. Optional Floppy Drive Configuration.......................................................................... 31
Figure 21. Hard Drive Tray Assembly......................................................................................... 34
Figure 22. Fixed Drive Tray w/Blank........................................................................................... 34
Figure 23. Hot-Swap SCSI Backplane Layout ............................................................................ 35
Figure 24. SCSI Backplane Block Diagram ................................................................................ 36
Figure 25. SCSI I2C Block Diagram ...........................................................................................38
Figure 26. 80-pn SCA2 Connector.............................................................................................. 40
Figure 27. 68-pin SCSI Cable Connector ..................................................................................41
Figure 28. SATA Backplane Layout............................................................................................ 46
Figure 29. SATA Backplane Functional Block Diagram.............................................................. 47
Figure 30. SATA Backplane I2C Block Diagram......................................................................... 48
Figure 31. Standard Control Panel Assembly Module ................................................................ 55
Figure 32. Control Panel Buttons................................................................................................55
Figure 34. Intel Local Control Panel Assembly Module .............................................................. 61
Figure 35. Intel Local Contol Panel Overview............................................................................. 61
Figure 36. Full Height PCI-Express Riser Card .......................................................................... 67

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Figure 37. Full Height Passive PCI-X Riser Card ....................................................................... 67
Figure 38. Full Height Active PCI-X Riser Card .......................................................................... 68
Figure 39. Low Profile Passive PCI-X Riser Card....................................................................... 68
Figure 40. Intel® Server Board SE7520JR2 Board Layout......................................................... 71
Figure 41. Intel® Server Board SE7320VP2 Board Layout ........................................................ 74

List of Tables Intel® Server Chassis SR2400
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List of Tables
Table 1. Chassis Dimensions ....................................................................................................... 2
Table 2. Power Harness Cable Definitions ................................................................................. 10
Table 3. P1 Baseboard Power Connector ..................................................................................11
Table 4. P2 Processor Power Connector.................................................................................... 11
Table 5. P3 Power Signal Connector.......................................................................................... 12
Table 6. P4 Hard Drive Interface Board Power Connector ......................................................... 12
Table 7. P5 HDD Power Connector ............................................................................................ 12
Table 8. AC Input Rating............................................................................................................. 13
Table 9. AC Line Sag Transient Performance ............................................................................ 14
Table 10. AC Line Surge Transient Performance ....................................................................... 15
Table 11. Power Supply Edge Connector Slot Pinout ................................................................15
Table 12. Load Ratings............................................................................................................... 17
Table 13. +12V Outputs Load Ratings........................................................................................ 18
Table 14. DC/DC Converters Load Ratings................................................................................ 18
Table 15. Voltage Regulation Limits .......................................................................................... 18
Table 16. Transient Load Requirements..................................................................................... 19
Table 17. Capacitive Loading Conditions ................................................................................... 19
Table 18. Ripple and Noise......................................................................................................... 20
Table 19. Turn On / Off Timing ................................................................................................... 20
Table 20. Over Current Protection Limits / 240VA Protection..................................................... 22
Table 21. Power Module Over Current Protection Limit ............................................................. 22
Table 22. Over Voltage Protection Limits ...................................................................................22
Table 23. Power Module Over Voltage Protection Limits ........................................................... 23
Table 24. LED Indicators ............................................................................................................ 24
Table 25. Individual Fan Pinout (J8B2, J6B1, J3B1, J1B1, J8A1, J6A1, J3A1, J1A1) .............. 25
Table 26. 24-pin Fan Control Connector Pinout (J3K6, J8C1) ...................................................26
Table 27. 10-pin Fan Control Connector Pinout (J4l1, J7A1) ..................................................... 26
Table 28. 28-pin floppy connector Pinout (J4) ............................................................................ 29
Table 29. 4-pin floppy power connector Pinout (J3) ................................................................... 30
Table 30. 34-pin floppy connector Pinout (J2) ............................................................................ 30
Table 31. 50-pin Drive connector Pinout (J6) ............................................................................. 31
Table 32. 44-pin internal Drive Interposer-to-Backplane Connector Pinout (J6) ........................32
Table 33. 4-pin Drive Power Connector Pinout (J5) ...................................................................32
Table 34. 40-pin IDE Optical Drive Interposer-to-Baseboard connector Pinout (J1) .................. 33
Table 35. SCSI Backplane Layout Description ........................................................................... 36

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Table 36. SCSI Backplane Power Connector Pinout (J9)........................................................... 39
Table 37. 7-pin SCSI power connector Pinout (J1)..................................................................... 39
Table 38. 10-pin Redundant Fan Connector Pinout (J5) ............................................................ 39
Table 39. 80-pin SCA-2 SCSI Interface Pinout (J9, J2, J10, J11, J12) ......................................40
Table 40. Ultra2 (LVD) SCSI Connector Pinout (J8)................................................................... 41
Table 41. 100-pin Floppy / CP / CD-ROM / Video Connector Pinout (J6) .................................. 42
Table 42. 28-pin floppy connector Pinout (J15) .......................................................................... 43
Table 43. 44-pin internal CD-ROM connector Pinout (J3) .......................................................... 43
Table 44. 50-pin SCSI Backplane to Control Panel Connector Pinout (J5) ................................ 44
Table 45. 6th Drive 7-pin Power Connector Pinout..................................................................... 44
Table 46. SATA Backplane Layout Reference Descriptions....................................................... 46
Table 47. SATA LED Function Definitions .................................................................................. 48
Table 48. SATA Backplane Power Connector Pinout................................................................. 49
Table 49. Option Board Power Connector Pin-out...................................................................... 49
Table 50. 4-pin SATA optional tape dirve power connector Pinout (J15) ................................... 49
Table 51. 10-pin Redundant Fan Connector Pinout (J5) ............................................................ 50
Table 52. 7-Pin SATA Connector Pinout (J2, J3, J4, J5, J6) ...................................................... 50
Table 53. 22-Pin SATA Connector Pinout (J7, J8, J9, J10, J11) ............................................... 50
Table 54. 100-pin Floppy/FP/IDE/Video Connector.................................................................... 51
Table 55. 50-pin Control Panel Connector.................................................................................. 52
Table 56. Contol Button and Intrusion Switch Functions ............................................................ 56
Table 57. Control Panel LED Functions...................................................................................... 56
Table 58. SSI Power LED Operation .......................................................................................... 57
Table 59. External USB Connectors (J1B1) ...............................................................................58
Table 60. Video Connector (J1A1).............................................................................................. 59
Table 61. 50-pin Control Panel Connector (J6B1) ...................................................................... 59
Table 62. Internal USB Header (J2B1) ....................................................................................... 60
Table 63. Control Panel LED Functions...................................................................................... 62
Table 64. SSI Power LED Operation .......................................................................................... 62
Table 65. 50-pin Control Panel Connector.................................................................................. 64
Table 66. Internal USB Header...................................................................................................64
Table 67. IPMI Header................................................................................................................ 65
Table 68. Internal NMI/Temp Sensor Header ............................................................................. 65
Table 69. Baseboard Layout Reference ..................................................................................... 72
Table 70. System Environmental Limits Summary ..................................................................... 79

List of Tables Intel® Server Chassis SR2400
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Intel® Server Chassis SR2400 Product Overview
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1. Product Overview
The Intel® Server Chassis SR2400 is a 2U server chassis that is designed to support the Intel®
Server Board SE7520JR2 and Intel Server Board SE7320VP2. The baseboards and the chassis
have feature sets that are designed to support the high-density server market. This chapter
provides a high-level overview of the chassis features. Greater detail for each major chassis
component or feature is provided in the following chapters.
Note: Support for some chassis features described in this document is dependent on which
server board is used and whether or not an Intel Management Module is installed in the system.
1.1 Chassis Views
Figure 1. Front View with optional Bezel
Figure 2. Front View without Bezel (Shown with Standard Control Panel option)
Figure 3. Back View – (Shown with 1+1 Power Supply Configuration)

Product Overview Intel® Server Chassis SR2400
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1.2 Chassis Dimensions
Table 1. Chassis Dimensions
Height 87.5 mm 3.445”
Width 430 mm 16.930”
Depth 672 mm 26.457”
Max. Weight 27.22 kg 60 Lbs
1.3 System Components
Figure 4. Major Chassis Components
A. Power Supply Modules G Slim Line Drive Bay
B. Power Distribution Board H Front Bezel (Optional)
C. Riser Card Assembly I Chassis Handles
D. Processor Air Duct J Control Panel
E. Fan Module (Shown with redundant fan configuration option) K Hard Drive Bays
F. Air Baffle
A
C
D
E
H
J
G
K
K
K
F
I
I
B

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The I/O connector locations on the back of the chassis are pre-cut, so the use of an I/O shield is
not required. The supplied EMI gasket must be installed to maintain Electromagnetic
Interference (EMI) compliance levels.
Figure 5. Back Panel Feature Overview
A Low Profile PCI Add-in Card Slots I Video Connector
B Full Height PCI Add-in Card Slots J USB 1 Connector
C Power Supply Modules (1+1 Configuration Shown) K USB 2 Connector
D PS2 Keyboard and Mouse Ports L Diagnostic Post Code LEDs
E RJ45 Serial B Port M Management NIC (IMM - Advanced
Edition required)
F NIC #1 Connector N External SCSI Channel B Connector
G NIC #2 Connector O Non-redundant Power Module Fans
H DB9 Serial A Port Cut-out
A
F
ED
CB
JIHG M
L
K N O

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1.4 Hard Drive and Peripheral Bays
The SR2400 is designed to support several different hard drive and peripheral configurations.
The system can be configured to support either hot swap SCSI or SATA drives, or can be
configured to support cabled SATA drives. Each drive configuration requires an orderable kit
which includes the necessary cables, drive trays and applicable backplane. The sixth bay,
labeled “B” in the diagram below, can optionally be configured to support a sixth hard drive or
3.5” Tape Drive.
The slim-line peripheral bay (A) is capable of supporting one of the following devices: CDROM,
DVD, DVD-CDR, floppy drive. If both an optical drive and floppy drive are required, an optional
kit can be purchased to convert the first 1” drive bay (D) to a floppy drive bay. The kit includes
the necessary cables and mounting tray.
Figure 6. Front Panel Feature Overview
A Slimline drive bay (Floppy or Optical)
B Optional 6th HDD Drive or Tape Drive Bay
C System Control Panel
D 1” Hard Drive Bay or optional Floppy Drive Bay
E 1” Hard Drive Bays x5
A
E
D
C
B

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1.5 Control Panel Options
The Server Chassis SR2400 can support either of two control panels: a Standard Control Panel
and an Intel® Local Control Panel with LCD support. The control panel assemblies are pre-
assembled and modular in design. The entire module assembly slides into a predefined slot in
the front of the chassis.
Figure 7. Control Panel Modules
The standard control panel supports several push buttons and status LEDs, along with USB and
video ports to centralize system control, monitoring, and accessibility to within a common
compact design. The following diagram overviews the layout and functions of the control panel.
Figure 8. Standard Control Panel Overview
A Power / Sleep Button G System Identification LED
B NIC #2 Activity LED H System Identification Button
C NIC #1 Activity LED I System Reset Button
D Power / Sleep LED J USB 2.0 Connector
E System Status LED K Recessed NMI Button (Tool Required)
F Hard Drive Activity LED L Video Connector
A
B
C D E
F
G
H
I
J
L K

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The Intel® Local Control Panel utilizes a combination of control buttons, LEDs, and LCD display
to provide system accessibility, monitoring, and control functions. The following diagram
provides an overview of this control panel.
Figure 9. LCD Contol Panel Overview
A LCD Display G NIC 2 Activity LED
B LCD Menu Control Buttons H NIC 1 Activity LED
C ID LED I Hard Drive Activity LED
D Power LED J System Reset Button
E System Power Button K USB 2.0 Port
F System Status LED L NMI Buttom (Tool Required)
M USB 2.0 Port
Note: The Intel Local Control Panel can only be used when either the Intel Management Module
Professional Edition or Advanced Edition is installed in the system.
1.6 Power Sub-system
The power subsystem of the SR2400 consists of an integrated power share board and module
enclosure which is capable of housing up to two 700 Watt power supply modules supporting
1+0 or redundant 1+1 power configurations. In a 1+1 redundant configuration, each power
supply module is hot swappable should one fail.
The power sub-system has several integrated management features including:
•Status LED on each power module
•Over temperature protection circuitry
Over voltage protection circuitry
L
A
B
C
DF E
I H GJ
K
M

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With the addition of Server Management Software, the power subsystem is capable of
supporting several system management features including:
•Remote Power On/Off
•Status Alerting
FRU Information Reporting
Each power supply module operates within the following voltage ranges and ratings:
•100 - 127VAC∼at 50/60 Hertz (Hz); 8.9A maximum
200 - 240VAC∼at 50/60 Hz; 4.5A maximum
1.7 System Cooling
The SR2400 has support for up to eight system fans in a modular 4+4 configuration. The bank
of fans closest to the baseboard is the default configuration providing sufficient airflow for both
cabled drive and hot-swap drive system configurations when external ambient temperatures
remain within specified limits. With the addition of a SATA or SCSI backplane to supply power,
the optional second bank of fans can be used to give the system fan redundancy should a fan
fail. In addition to the eight system fans, each power supply module installed provides an
additional two non-redundant fans pulling air from inside the chassis out the back.
1.8 Chassis Security
The SR2400 provides support for a lockable front bezel and a chassis intrusion switch.
1.9 Rack and Cabinet Mounting Options
The Server Chassis SR2400 was designed to support 19” wide by up to 30” deep server
cabinets. The chassis supports either of two rack mount options: A fixed mount relay rack /
cabinet mount or a tool-less sliding rail kit. The fixed mount relay rack / cabinet mount kit can be
configured to support both 2-post racks and 4-post cabinets. The tool-less sliding rail kit is used
to mount the chassis into a standard (19” by up to 30” deep) EIA-310D compatible server
cabinet.
1.10 Front Bezel Features
The optional front bezel is made of molded plastic and uses a snap-on design. When installed,
its design allows for maximum airflow.
Figure 10. Optional Front Bezel

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Separate front bezels are available to support systems that use either a Standard Control Panel
or Intel Local Control Panel.
When the Standard Control Panel is used, light pipes on the backside of the front bezel allow
the system status LEDs to be monitored with the front bezel in the closed position. The front
bezel lock is provided to prevent unauthorized access to hard drives, peripheral devices and the
control panel.
Figure 11. Front Bezel Supporting Standard Control Panel
When the Intel Local Control Panel is used, the control panel module can be adjusted to extend
further out from the chassis face to allow the LCD panel to protrude from the front bezel.
Figure 12. Front Bezel Supporting Intel Local Control Panel