Power-Up And Self-Test; Indicator Test; Circuit Tests - D-Link DP-301P Hardware Manual

DP-301P Print Server Hardware Guide

Power-up and Self-test

Whenever the DP-301P is powered up, two testing procedures
follow automatically. The first procedure is a programmed series of
flashes intended to confirm proper operation of the three LED
indicators. The second procedure comprises programmed tests of
the DP-301P' s internal circuitry. If any fault is found during the
circuitry tests, testing stops and a continuous pattern of flashes
signals the nature of the fault.

Indicator Test

Immediately upon power-up, all three indicators will show steady
green for several seconds. Then the LPT indicator will flash three
times while the Pw/Tx and Lk/Rx indicators remain steady.
Irregularity of any indicator during this test indicates that there is
a problem with the indicators themselves. Contact your dealer for
correction of any indicator problems before proceeding.

Circuit Tests

The circuit tests immediately follow the indicator test. A normal
(no fault) result is signaled by three flashes of the LPT indicator
and the start of normal print server operation.
If any error condition is found during the circuit tests, testing will
halt with the LPT indicator continuously signaling the particular
error according to the following table.
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Unpacking and Installation