Cisco C880 M4 Donanım Kurulum Kılavuzu - Sayfa 18

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2.4

Free Access Underfloor Connection of Power Cable

If the height of underfloor is less than 300mm (11.8 in.), the power distribution is set to sideways.

FIGURE 2.10 When Underfloor Height is less than 300mm (11.8 in)

The connector format and cable bend radius of power cable are considered at the time of connecting the

power cable of power distribution box (or base cabinet) under the free access floor. It is recommended that

the under floor height is 300 mm (11.8 in) or more.

The recipient power distribution should be arranged near the device.

FIGURE 2.11 When the under floor height is 300 mm (11.8 in) or more.

Remarks

The above figure shows an example of 19-inch rack mounted with the device.

2.5

Cutoff Characteristics of Distribution Panel (At the time

of connecting power distribution box)

At the time of connecting the distribution panel through power distribution box, protection should be

coordinated so that the breaker of the device (or power distribution box) trips before the breaker of the

distribution panel trips. Such protection should be maintained. Therefore, the distribution panel should have

the characteristic conditions shown in

Number

(1)

Free access floor

(2)

Less than 300mm (11.8 in)

(3)

Recipient power distribution

Number

(1)

Free access floor

(2)

200 mm (9.8 in)

(3)

300 mm (11.8 in) or more

(4)

Recipient power distribution

"TABLE 2.3 Characteristic Condition of Distribution Panel

Description

Breaker".