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4.0 S-LINK Usage Instructions

4.12 Power-on Sequence

On power-on, the S-LINK card will undergo a configuration routine which might take some time, especially if synchronisation is to be achieved over a long fibre link. During this time, LDOWN# will be held low. When the power-on sequence has been completed, LDOWN# will go high automatically.

The time taken for the power-on sequence is application dependent and may be quite large. Unless stated otherwise in the S-LINK Datasheet, tPOWER-ON will be less than 15 seconds.

The power-on sequence is shown in Figure 8.

FIGURE 8. LDOWN# at Power-on

The S-LINK Interface Specification - 27 MARCH 1997
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