Ericsson EDN312 Guia do Utilizador descarregar pdf (Página 14)

Function Description

4/1553-HSC 901 101/2 Uen B 2009-02-27

Good Poor Failed Poor Good Poor Good

State:

Fan rotation speed

Poor Performance Alarm

Good Performance Alarm

Failed Alarm

Threshold 4

Threshold 3

Threshold 2

Threshold 1

Figure 5 Overview of Performance State for the Fans

Table 2 on page 10 lists the thresholds for the different nodes:

Table 2 Temperature Thresholds

Threshold EDN312 (rpm) ESN108 (rpm) EXN104 (rpm)

Threshold 4 11,000 12,000 12,000

Threshold 3 10,000 11,000 11,000

Threshold 2 7,000 10,000 10,000

Threshold 1 6,000 9,000 9,000

A fan changes the state from Good to Poor, if the rotation speed of the fan

in rpm, after 2 minutes of running at full speed level, is below the Threshold

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 51 52

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Ericsson EDN312 Guia do Utilizador Página 14