Allied-telesis AT-MC102XLPCI Manual do Utilizador descarregar pdf (Página 22)

Chapter 1: Product Overview

Configuring

MissingLink &

Link Test

Features

The MissingLink & Link Test jumper (J5) on the AT-MC102XLPCI

assembly is configured at the factory with the MissingLink feature enabled.

By reconfiguring this jumper, the link Test function can be enabled (and

MissingLink disabled). The location of the jumper is shown in Figure 4.

Figure 4. PC Board Location of Jumper J5

The MissingLink & Link Test configuration and jumper (J5) pin positions

are given in Table 3.

Note

Although is not marked on J5, Pin 2 is positioned between pins 1

and 3.

Note

If you choose to remove the jumper, Allied Telesis recommends that

you re-install the jumper on the center pin (2) only, 90 degrees from

the pins 1 and 3 so that it does get lost.

Table 3. MissingLink & Link Test - Jumper J5 Positions

Pin Position of Jumper Feature Configuration

1 and 2

(Factory Default)

MissingLink function enabled

Link Test disabled

2 and 3 MissingLink function disabled

Link Test enabled

No Jumper Installed MissingLink function enabled

Link Test disabled

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 41 42

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Allied-telesis AT-MC102XLPCI Manual do Utilizador Página 22