Chenbro RM312 User manual

Rev. 01
RM312 Rackmount Chassis
User Guide

RM312 User Guide ii 19" Rackmount Chassis
Contents
YOUR RACKMOUNT CHASSIS........................................................................1
FEATURES.......................................................................................................1
SPECIFICATIONS ...............................................................................................2
LAYOUT..........................................................................................................3
INSTALLATION..............................................................................................5
FOR YOUR SAFETY .............................................................................................5
PARTS LIST.....................................................................................................6
INSTALLING HARD DISK DRIVES (HDD).............................................................8
INSTALLING AN INTERNAL HDD.......................................................................8
INSTALLING A FDD......................................................................................9
INSTALLING A SLIM CD/DVD-ROM..................................................................9
CHANGING THE 80MM SYSTEM FANS ...............................................................10
INSTALLING THE BACKPLANE (OPTIONAL ITEM)...................................................11
INSTALLING A MOTHERBOARD (OPTIONAL PART)..................................................13
INSTALLING THE POWER SUPPLY UNIT (OPTIONAL DEVICE).....................................13
INSTALLING THE GENERAL RACK RAIL KIT (OPTIONAL PART)...................................14
INSTALLING THE BEZEL ...............................................................................15
BACKPLANE BOARD.....................................................................................16
RAID BACKPLANE SUPPORTS:..............................................................................16
BACKPLANE LAYOUT .........................................................................................17
PIN ASSIGNMENTS...........................................................................................18
LED BOARD..................................................................................................20
FEATURES.....................................................................................................20
LED BOARD LAYOUT........................................................................................21
PIN ASSIGNMENTS...........................................................................................22
APPENDIX A................................................................................................24
OPTIONAL CABLES...........................................................................................24
APPENDIX B................................................................................................25
POWER CORD PLUG OPTIONS..............................................................................25
NOTICES......................................................................................................26
CONTACT INFORMATION............................................................................27
HEADQUARTERS ..............................................................................................27

RM312 User Guide 119" Rackmount Chassis
YOUR RACKMOUNT CHASSIS
The RM312 19" rackmount chassis supports a variety of high-density system
configurations and features the latest in server-chassis technology.
Features
Top Cover
ØScrew-less design for easy installation and maintenance
ØQuick reference guide affixed to the inside
Front Panel Controls and Indicators
ØFront access USB2.0 ports offer flexibility
ØAlarm mute button to disable audible warnings
ØSystem reset button
ØLEDs for system signals (power, HDD access, LAN1, LAN2, and failure event)
Hard Drive Trays
Ø12 hard drive trays (may serve NAS, RAID, or media streaming applications)
ØHot-swappable for ease of use
Drive Bays
ØTwo external bays (one slim CD/DVD-ROM and one standard FDD)
ØInternal HDD bay for operating system
Backplanes
ØSupports3pcs of 4-in-1 IDE ATA133/Ultra320 SCSI/SATA backplanes
Motherboard
ØExtended ATX form factor up to 12”×13”
ØSupports numerous brands (i.e. Intel®, Supermicro®, Tyan, Gigabyte™, Asus®,
etc.)
CPU
ØSupportsIntel®P4, Intel®DP Xeon™,AMD Athlon™MP,or AMD Opteron™
ØExcellent thermal solution for DP Xeon up to 3.06+GHz
PSU
ØSupportssingle or redundant 3U power supply
ØPower output up to 800W (depends on power supply)
Cooling Fans
ØFour 80mm ball-bearing fans (two 60mm rear fansoptional)
Slot Openings
Ø7 PCI expansion slots at the rear

RM312 User Guide 219" Rackmount Chassis
Specifications
Model Name RM312
Standard EIA-RS310D
M/B Form Factor Extended ATX (12"x13")
CPU Type Supported P4/DP Xeon/Athlon MP/Opteron
Dimension (D*W*H) 660*430*176mm
26*16.9*5.2"
5.25” 1 x slim CD/DVD-ROM
External 3.5” 1 x FDD
Internal 3.5” 1
Drive
Bays
HDD Trays 12
Form Factor Single or Redundant
PSU Watts 350W ~ 800W
Indicators Power On/Off, HDD/LAN activity, fan failure,
and overheat warning
Front Controls Power On/Off, System Reset, Alarm Reset,
and USB2.0 port x 2
System Security N/A
Standard 4 × 80mm middle fans
Cooling Fan Optional 2 × 60mm rear fans
Slot Opening 7
Material SGCC
Sheet Metal Thickness 1.2mm
Net Weight (chassis only) 15.1kg
Cubic Feet 5.27
20’ 176 units
Reference Container Load
(single packing) 40’ 368 units
Backplane IDE/SCSI/SATA

RM312 User Guide 319" Rackmount Chassis
Layout
Chassis
Front Panel Inset
A. HDD Tray Activity LEDs (1-12)
B. USB2.0 Port x2
C. LAN1 and LAN2 LEDs
D. Alarm Mute Button
E. System Reset Button
F. Failure LED
G. System HDD Activity LED
H. Power LED
I. Power Switch
A B C D E F G H I
Two 60mm Exhaust Fans (optional)
Standard ATX/
Extended ATX M/B
4x 80mm Easy Swap
Fan Modules
Slim CD-ROM
12x Hard Drive
Trays
Single or n+1 Redundant
Power Supply (optional)
Internal 3.5" Hard Drive
Standard FDD or Internal HDD
Front Access Panel
See Front Panel Inset
for details

RM312 User Guide 419" Rackmount Chassis
Two 60mm Exhaust Fans (optional)
Single or n+1
Redundant
Power Supply
(optional)
System I/O Ports
(M/B dependent)
Seven PCI Slots
Back Panel

RM312 User Guide 519" Rackmount Chassis
INSTALLATION
For your safety
When deciding on a location for your RM312 rackmount chassis, please take the
following into consideration:
Electric Power: The power cord is what powers on/off your chassis, so try to
place the chassis near a power outlet for convenience. Next,
be aware of RM312's power rating to avoid overloading its
circuits. Then make sure the connections are grounded
properly.
Temperature: Whenever dealing with an enclosed environment,
temperature must be a consideration. Inside the chassis, the
temperature will most likely be higher than that of the room
it is located in. To make certain that RM312 operates
effectively and to prevent possible heat-related problems, be
sure to have plenty of ventilation (i.e. additional cooling fans
and extra space between devices).

RM312 User Guide 619" Rackmount Chassis
Parts List
•RM312 Rackmount Chassis (P/N: 90-331200-001)
•Accessory Box (P/N: 84-331210-001)
-CD-ROM Adapter (P/N: 80-091801-011)
-Screws and Spacers:
DEVICE PACKET PART
NO.SCREW IMAGE(S)INSTALLATION TOOL(S) REQUIRED
HDD Tray 70-000000-149
Phillips Screwdriver
Internal HDD 70-000000-149
Phillips Screwdriver
FDD 70-331900-101
Phillips Screwdriver
Slim CD/DVD-ROM 70-331900-101
Phillips Screwdriver
Backplane 70-331900-102
Phillips Screwdriver
Nut Driver
Motherboard 70-331100-101
Phillips Screwdriver
Nut Driver

RM312 User Guide 719" Rackmount Chassis
-Cables: (refer to Appendix A for further cable options)
CABLE PART NO.CABLE APPEARANCE
FDD 26-073123-001
CD/DVD-ROM 26-073123-004
HDD 1-to-226-073118-007
Big 4P to big
4P/small 4P 26-113215-001
Big 4P to big
4P+250mm big 4P 26-113215-003
•Optional Items:
-26”General Device Rack Rail Kit
-60mm Rear Exhaust Fans x 2
-Power Cord (refer to Appendix B for plug options)

RM312 User Guide 819" Rackmount Chassis
Installing Hard Disk Drives (HDD)
1. Press latch towards the right to open the lever release and slide the HDD tray out
of the chassis.
2. Mount the hard drive onto the tray with four screws from the HDD screw packet
(P/N: 70-000000-149).
3. Slide the HDD tray back into the case and press the lever back in to secure it.
4. Repeat the procedure for the remaining hard drives.
Installing an Internal HDD
( STANDARD ) ( OPTION )
1. Remove the securing screw to slide back and take out the bracket.
2. Attach the HDD to the bracket with four additional screws from the included HDD
screw packet (P/N: 70-000000-149).
3. Slide the bracket forward, following the three guide pins,until it fits into place.
4. Reattach the original screw.
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RM312 User Guide 919" Rackmount Chassis
Installing a FDD
1. Remove the securing screw to move back and take out the bracket.
2. Remove the bracket's FDD cover screws.
3. Attach the FDD onto the bracket with four additional screws from the included
FDD screw packet (P/N: 70-331900-101).
4. Slide the bracket forward, following the three guide pins,until it fits into place.
5. Reattach the original securing screw.
Installing a Slim CD/DVD-ROM
1. Release the securing screw to slide back and take out the bracket.
2. Release the CD-ROM's cover screws.
3. Attach the slim CD/DVD-ROM onto the bracket with four additional screws from
the included CD-ROM screw packet (P/N:70-331900-101).
4. Slide the bracket forward, following the two guide pins,until it fits into place
5. Reattach the securing screw.
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RM312 User Guide 10 19" Rackmount Chassis
Changing the 80mm System Fans
1. Disconnect the fan connector from the backplane.
2. Push the press tab down, then ease the fan and its frame out of the fan bracket.
3. Pull the press tab up to release the fan from the frame.
4. Remove the four screws to take out the finger guard.
5. Replace the faulty fan with a new one.
6. Reassemble, then place back into the fan bracket and reconnect to the backplane.
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RM312 User Guide 11 19" Rackmount Chassis
Installing the Backplane (optional item)
RM312 supports the following three different backplanes: SCSI, IDE, and SATA.
SCSI Backplane Assembly
IDE Backplane Assembly SATA Backplane Assembly

RM312 User Guide 12 19" Rackmount Chassis
1. With ten screws from the backplane screw packet (P/N: 70-331900-102),attach
the backplane to the bracket in the chassis as shown in the diagram.
2. To support a second backplane, affix three hex copper spacer pins.
3. Next secure both ends of the backplane with two screws on both sides of the
outer chassis.
4. Repeat steps1-3 for remaining backplane assemblies.
5. For the topmost assembly, use the three hex copper spacers without the pins to
cap it off.
6. Connect the LED cable from backplane (JP1) to LED board. The lower one
connects to the 1U LED connector (J1) on the LED board; the middle one to the
2U connector (J2); and the upper one to the 3U connector (J3).
7. Now connect the Big 4p power cable from the PSU to the power connectors (J7
and J8) on the SCSI backplane.
8. Connect the fan connector to the fan pin header of the upper backplane to finish
the installation, and check to see the fan sensor is enabled.
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RM312 User Guide 13 19" Rackmount Chassis
Installing a Motherboard (optional part)
1. Use the included spacers for support from the motherboard screw packet (P/N:
70-331100-101).
2. Install the I/O gasket that came with your motherboard (M/B).
3. Next align the M/B with the chassis and I/O gasket.
4. The edge with the I/O ports should be placed at the back part of the chassis.
5. Secure M/B to the chassis with a screw.
Installingthe Power Supply Unit (optional device)
1. Place the power supply unit (PSU)into in the area shown and secure it with four
screws.
2. With another two screws,secure it to the other side of the chassis.
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RM312 User Guide 14 19" Rackmount Chassis
Installing the General Rack Rail Kit (optional part)
The optional rack rail kit consistsof three main parts:apair of inner fixed chassis
rails, a pair of outer fixed rack rails, and a pair of sliding rail guides.Each pair is
identical, so no special attention is necessary to make the parts match either the left
or the right side. No parts must be removed from the chassis in order to install the
rack rail kit.
1. As they are partially assembled when packaged, you must first disassemble the
rails before installing them.
Remove the inner fixed chassis rail:Pull out until a "click"is heard, then depress
the locking tab and pull the inner rail completely out. Do this for both the left and
right side rail assemblies.
2. Now position the same inner fixed chassis rail along the side of the RM312
chassis. Making sure the holes line up, screw the rail securely to the side of the
chassis. Repeat this procedure for the other rail on the other side.
3. Next position the outer fixed rack rail/sliding rail guide assemblyat the desired
location in the cabinet rack, making sure to keep the sliding rail guide facing the
interior ofthe rack. Screw the assembly securely to the rack using the included
brackets. Repeat the procedure for the other side's assembly, making sure to
match the exact same height and position of the rail guides facing inward.
4. Lineup the rear of the inner fixed chassis rails with the front of the outer fixed
rack rails, and slide the chassis towards the rear, keeping even pressure on both
sides.
5. When the RM312 has been eased completely into the rack, you should hear the
locking tabs "click"to finish the installation.
Sliding Rail Guide
(inside facing chassis)
Screws
Inner Fixed Chassis Rail
Outer Fixed Rack Rail

RM312 User Guide 15 19" Rackmount Chassis
Installingthe Bezel
1. First detach the handles by removing the two screws from each one.Keep
handles in the event you may need them again in the future.
2. Next, install the bezel supports and tighten screwssecurely.
3. Then fit the right side of bezel to its corresponding support and snap into place.
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RM312 User Guide 16 19" Rackmount Chassis
BACKPLANE BOARD
Raid Backplane Supports:
ØSCSI interface: Ultra 320/160 backward compatibility
ØHard disk drive 80pin SCA2 Ultra 320/160 backward compatibility
Ø4-bay hard disk drive inrush current control for hot-swapping
ØSCSI-IN and SCSI-OUT connector (right angle, 68-pin female)
ØSCSI on board terminator On/Off function and On/Off LED
ØHard disk drive Delay_Start or Remote_Start mode function
ØSCA2 ID setting function default is ID0, ID1, ID2,ID3
Ø5pcs external fan speed monitoring, fan failure buzzer alarm, and red LED
active function
ØFan disable function
ØOne on-board temperature sensor with adjustable alarm level (50 C or 60 C);
buzzer sounds when temperature rises above alarm level
Ø2pcs power connectors in big 4-pin, right angle, D-type
ØPower On LED
Ø4external LEDs monitoring for HDD installation, HDD access, and fan
overheating fail and buzzer mute connector pin

RM312 User Guide 17 19" Rackmount Chassis
J5
BZ1
FAN1
FAN2
FAN3
J7
S6
FAN4
FAN5
JP1
S1
J6
J8
S2
J1
S3
J2
S4
J3
S5
J4
Backplane Layout
Dimensions: 411.60*51.44*2.4mm

RM312 User Guide 18 19" Rackmount Chassis
Connectors and Switches
No. Description No. Description
J1 HDD1 SCA2 Connector S3 HDD2 ID-Set Switch
J2 HDD2 SCA2 Connector S4 HDD3 ID-Set Switch
J3 HDD3 SCA2 Connector S5 HDD4 ID-Set Switch
J4 HDD4 SCA2 Connector S6 Function Set Switch
J5 SCSI in 68pin Connector FAN1 Fan Connector
J6 SCSI in 68pin Connector FAN2 Fan Connector
J7 DC Power Input for Big 4P FAN3 Fan Connector
J8 DC Power Input for Big 4P FAN4 Fan Connector
JP1 For LED Output Header FAN5 Fan Connector
S1 Function Set Switch BZ1 Buzzer
S2 HDD1 ID-Set Switch
Pin Assignments
S2, S3, S4, S5: SCSI ID Settings
SCSI ID Position1 Position2 Position3 Position4
0Off Off Off Off
1On Off Off Off
2Off On Off Off
3On On Off Off
4Off Off On Off
5On Off On Off
6Off On On Off
7On On On Off
8Off Off Off On
9On Off Off On
10 Off On Off On
11 On On Off On
12 Off Off On On
13 On Off On On
14 Off On On On
15 On On On On
ØAvoid setting SCSI ID 7 for SCSI drive. It normally hosts the SCSI
host adapter.
ØThe default setting for SCSI drives are from ID0, ID1, ID2, and ID3.