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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
C141-E250 3-1
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Installation Conditions
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 C141-E250
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3.2 Mounting
For information on mounting, see the "FUJITSU 2.5-INCH HDD INTEGRATION
GUIDANCE (C141-E144)."
(1) Orientation
The disk drives can be mounted in any direction.
(2) Frame
The MR head bias of the HDD disk enclosure (DE) is zero. The mounting frame
is connected to SG.
3.2 Mounting
Use M3 screw for the mounting screw and the screw length should
satisfy the specification in Figure 3.2.
The tightening torque must be 0.49N•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.
Bottom surface mounting
DE
2
A
Frame of system
cabinet
3.0 or less
Details of A
Screw
2.5 2.5
2.5
2.5
Frame of system
cabinet
3.0 or less
Side surface
mounting
PCA
Screw
B
C141-E250 3-3
Details of B
Figure 3.2 Mounting frame structure
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Installation Conditions
Because of breather hole mounted to the HDD, do not allow this to
close during mounting.
Locating of breather hole is shown as Figure 3.3.
For breather hole of Figure 3.3, at least, do not allow its around φ 3
to block.
3-4 C141-E250
Figure 3.3 Location of breather
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(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 3.4 shows the
temperature measurement point.
3.2 Mounting
1
Figure 3.4 Surface temperature measurement points
Table 3.1 Surface temperature measurement points and standard values
No. Measurement point Temperature
1 DE cover 60 °C max
C141-E250 3-5
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Installation Conditions
(5) Service area
Figure 3.5 shows how the drive must be accessed (service areas) during and after
installation.
Mounting screw hole
Cable connection
(6) Handling cautions
Mounting screw hole
Figure 3.5 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 kΩ or greater). Do not touch the printed circuit board, but hold
it by the edges.
Please keep the following cautions, and handle the HDD under the safety
environment.
3-6 C141-E250
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- General notes
ying
p
p
3.2 Mounting
ESD mat
Wrist strap
Use the Wrist strap.
Do not hit HDD each other.
Do not
to avoid falling down.
lace HDD vertically
Shock absorbing mat
Place the shock absorbing mat on the
operation table, and place ESD mat on it.
Do not stack when carr
Do not dro
.
.
- 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 3M ESD
ESD mat SKY-8A (Color Seiden Mat) Achilles
Shock Low shock driver SS-6500 HIOS
C141-E250 3-7
Figure 3.6 Handling cautions
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Installation Conditions
3.3 Cable Connections
3.3.1 Device connector
The disk drive has the connectors and terminals listed below for connecting
external devices. Figure 3.7 shows the locations of these connectors and terminals.
Connector,
setting pins
Figure 3.7 Connector locations
PCA
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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
3.3 Cable Connections
ATA interface and power
supply cable (44-pin type)
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 3.8 shows how to connect the devices.
Host system
Cable socket
(44-pin type)
ATA-cable
89361-144 FCI
Disk Drive #0
ATA-cable
DC
Power supply
Power supply cable
Disk Drive #1
Figure 3.8 Cable connections
Damage: Interface cable connection
Take note of the following precaution about plugging an interface
cable (socket) into the interface connector of the disk drive and
plugging the connector into a host receptacle:
− When plugging together the disk drive interface connector and
the host receptacle or interface cable connector (socket), do not
apply more than 10 kgf of force in the connection direction once
they are snugly and securely in position.
C141-E250 3-9
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Installation Conditions
3.3.4 Power supply connector (CN1)
Figure 3.9 shows the pin assignment of the power supply connector (CN1).
Figure 3.9 Power supply connector pins (CN1)
3.4 Jumper Settings
3.4.1 Location of setting jumpers
Figure 3.10 shows the location of the jumpers to select drive configuration and
functions.
3-10 C141-E250
Figure 3.10 Jumper location
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3.4.2 Factory default setting
Figure 3.11 shows the default setting position at the factory.
3.4 Jumper Settings
Open
Figure 3.11 Factory default setting
3.4.3 Master drive-slave drive setting
Master drive (disk drive #0) or slave drive (disk drive #1) is selected.
Open
1C
2
A
BD
Open
Open
AC1
Short
BD2
(b) Slave drive(a) Master drive
Figure 3.12 Jumper setting of master or slave drive
Note:
Pins A and C should be open.
C141-E250 3-11
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Installation Conditions
3.4.4 CSEL setting
Figure 3.13 shows the cable select (CSEL) setting.
Open
AC1
BD2
Short
Note:
The CSEL setting is not depended on setting between pins Band D.
Figure 3.13 CSEL setting
Figure 3.14 and 3.15 show examples of cable selection using unique interface
cables.
By connecting the CSEL of the master drive to the CSEL Line (conducer) of the
cable and connecting it to ground further, the CSEL is set to low level. The drive
is identified as a master drive. At this time, the CSEL of the slave drive does not
have a conductor. Thus, since the slave drive is not connected to the CSEL
conductor, the CSEL is set to high level. The drive is identified as a slave drive.
drive drive
Figure 3.14 Example (1) of cable select
3-12 C141-E250
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Figure 3.15 Example (2) of cable select
3.4.5 Power up in standby setting
When pin C is grounded, the drive does not spin up at power on.
3.4 Jumper Settings
drive drive
C141-E250 3-13
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