Fujitsu MHU2100AT User manual
C141-E202-01EN 3-1
CHAPTER 3 Installation Conditions
3.1 Dimensions
3.2 Mounting
3.3 Cable Connections
3.4 Jumper Settings
This chapter gives the external dimensions, installation conditions, surface
temperature conditions, cable connections, and switch settings of the hard disk
drives.
For information about handling this hard disk drive and the system installation
procedure, refer to the following Integration Guide.
C141-E144
Installation Conditions
3-2 C141-E202-01EN
3.1 Dimensions
Figure 3.1 illustrates the dimensions of the disk drive and positions of the
mounting screw holes. All dimensions are in mm.
Figure 3.1 Dimensions
3.2 Mounting
C141-E202-01EN 3-3
3.2 Mounting
For information on mounting, see the "FUJITSU 2.5-INCH HDD
INTEGRATION GUIDANCE (C141-E144)."
(1) Orientation
Figure 3.2 illustrates the allowable orientations for the disk drive.
(a) Horizontal –1
(b) Horizontal –1
(c) Vertical –1
(d) Vertical –2
(e) Vertical –3
(f) Vertical –4
Figure 3.2 Orientation
gravity
gravity
gravity
Installation Conditions
3-4 C141-E202-01EN
(2) Frame
The MR head bias of the HDD disk enclosure (DE) is zero. The mounting frame
is connected to SG.
IMPORTANT
Use M3 screw for the mounting screw and the screw length should
satisfy the specification in Figure 3.3.
The tightening torque must be 0.49N•m (5kgf•cm).m (5kgf•cm).
When attaching the HDD to the system frame, do not allow the
system frame to touch parts (cover and base) other than parts to
which the HDD is attached.
(3) Limitation of mounting
Note) These dimensions are recommended values; if it is not possible to satisfy
them, contact us.
Figure 3.3 Mounting frame structure
Screw
Screw
Details of B
Details of A
3.0 or less
3.0 or less
Frame of system
cabinet
Frame of system
cabinet
B
PCA
A
2
2.52.5
2.5
2.5
DE
Side surface
mounting
Bottom surface mounting
3.2 Mounting
C141-E202-01EN 3-5
IMPORTANT
Because of breather hole mounted to the HDD, do not allow this to
close during mounting.
Locating of breather hole is shown as Figure 3.4.
For breather hole of Figure 3.4, at least, do not allow its around
φ 2.4 to block.
Figure 3.4 Location of breather
Installation Conditions
3-6 C141-E202-01EN
(4) Ambient temperature
The temperature conditions for a disk drive mounted in a cabinet refer to the
ambient temperature at a point 3 cm from the disk drive. The ambient
temperature must satisfy the temperature conditions described in Section 1.4, and
the airflow must be considered to prevent the DE surface temperature from
exceeding 60 °C.
Provide air circulation in the cabinet such that the PCA side, in particular,
receives sufficient cooling. To check the cooling efficiency, measure the surface
temperatures of the DE. Regardless of the ambient temperature, this surface
temperature must meet the standards listed in Table 3.1. Figure 3.5 shows the
temperature measurement point.
Figure 3.5 Surface temperature measurement points
Table 3.1 Surface temperature measurement points and standard values
No. Measurement point Temperature
1 DE cover 60 °C max
1
•
3.2 Mounting
C141-E202-01EN 3-7
(5) Service area
Figure 3.6 shows how the drive must be accessed (service areas) during and after
installation.
Figure 3.6 Service area
Data corruption: Avoid mounting the disk drive near strong
magnetic sources such as loud speakers. Ensure that the disk drive
is not affected by external magnetic fields.
Damage: Do not press the cover of the disk drive. Pressing it too
hard, the cover and the spindle motor contact, which may cause
damage to the disk drive.
Static: When handling the device, disconnect the body ground
(500 kΩor greater). Do not touch the printed circuit board, but
hold it by the edges.
(6) Handling cautions
Please keep the following cautions, and handle the HDD under the safety
environment.
Mounting screw hole
Mounting screw hole
Cable connection
Installation Conditions
3-8 C141-E202-01EN
- General notes
Figure 3.7 Handling cautions
- Installation
(1) Please use the driver of a low impact when you use an electric driver.
HDD is occasionally damaged by the impact of the driver.
(2) Please observe the tightening torque of the screw strictly.
M3 ······· 0.49N·m (5 kgf·cm).
- Recommended equipments
Contents Model Maker
Wrist strap JX-1200-3056-8 SUMITOMO 3MESD ESD mat SKY-8A (Color Seiden Mat) Achilles
Shock Low shock driver SS-6500 HIOS
Place the shock absorbing mat on the
operation table, and place ESD mat on it.
Use the Wrist strap.
Do not hit HDD each other.
D
o not stack when carrying.
Do not place HDD vertically
to avoid falling down.
D
o not drop.
Shock absorbing mat
E
SD mat
Wrist strap
3.3 Cable Connections
C141-E202-01EN 3-9
3.3 Cable Connections
3.3.1 Device connector
The disk drive has the connectors and terminals listed below for connecting
external devices. Figure 3.8 shows the locations of these connectors and
terminals.
Figure 3.8 Connector locations
Connector,
setting pins PCA
Installation Conditions
3-10 C141-E202-01EN
3.3.2 Cable connector specifications
Table 3.2 lists the recommended specifications for the cable connectors.
Table 3.2 Cable connector specifications
Name Model Manufacturer
ATA interface and power
supply cable (44-pin type) Cable socket
(44-pin type) 89361-144 FCI
IMPORTANT
For the host interface cable, use a ribbon cable. A twisted cable or a
cable with wires that have become separated from the ribbon may
cause crosstalk between signal lines. This is because the interface is
designed for ribbon cables and not for cables carrying differential
signals.
3.3.3 Device connection
Figure 3.9 shows how to connect the devices.
Host system
DC
Power supply
Disk Drive #0
Disk Drive #1
ATA-cable
ATA-cable
Power supply cable
Figure 3.9 Cable connections
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