3.2 Mounting. Fujitsu MPE3XXXAT

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3.2 Mounting. Fujitsu MPE3XXXAT | Manualzz

3.2

(1)

Mounting

Direction

Figure 3.2 illustrates normal direction for the disk drive. The disk drives can be mounted in any direction.

Horizontal mounting with the PCB facing down

Figure 3.2

Direction

(2) Frame

The disk enclosure (DE) body is connected to signal ground (SG) and the mounting frame is also connected to signal ground. These are electrically shorted.

Note:

Use No.6-32UNC screw for the mounting screw and the screw length should satisfy the specification in Figure 3.4.

(3) Limitation of side-mounting

When the disk drive is mounted using the screw holes on both side of the disk drive, use two screw holes shown in Figure 3.3.

Do not use the center hole. For screw length, see Figure 3.4.

C141-E077-01EN 3 - 3

Use these screw holes

Do not use this screw holes

2

A

Frame of system cabinet

Figure 3.3

Limitation of side-mounting

Bottom surface mounting

DE

2.5

2.5

Frame of system cabinet

Side surface mounting

DE

PCA B

2.5

4.5 or less

Details of A

Screw

5.0 or less

Details of B

Figure 3.4

Mounting frame structure

Screw

3 - 4 C141-E077-01EN

(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. Pay attention to the air flow 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.

1

Figure 3.5

Surface temperature measurement points

Table 3.1

Surface temperature measurement points and standard values

No.

1 DE cover

Measurement point Temperature

60°C max

C141-E077-01EN 3 - 5

(5) Service area

Figure 3.6 shows how the drive must be accessed (service areas) during and after installation.

- Mounting screw hole

[Q side]

- Mounting screw hole

[P side]

- Cable connection

- Mode setting switches

[R side]

- Mounting screw hole

Figure 3.6

Service area

(6) External magnetic fields

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.

3 - 6 C141-E077-01EN

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