D-Link 301P Manual - Page 12

Power ON Self-Test - dp +

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Power ON Self-Test Every DP-301P+ has been factory-tested to operate properly. When the DP-301P+ is powered ON, it also automatically performs a Self-Test on each of its major components. The final result of the Self-Test is signaled by the state of the LPT LED indicator following the Self-Test. Preliminary to the actual component tests, the three LED indicators are tested to confirm their steady and flashing operation. Immediately after power-up, all three of the green LEDs should illuminate steadily for several seconds. Then the LPT LED should light OFF. Irregularity of any of the three LEDs during these LED tests may mean there is a problem with the LEDs themselves. The actual component tests immediately follow the LED tests. A normal (no fault) result is signaled by a simultaneous flashing of the LPT LED three times, followed by a quiescent state with the LPT LED dark. If the Self-Test routine traps any component error, then following the LED tests the Self-Test will halt and the LPT LED will continuously signal the error according to the following table. In the event of any such error signal, contact your dealer for correction of the faulty unit. LPT LED Faulty Component On 1 long 3 short 1 long 5 short 1 long 6 short 1 long 8 short DRAM error Flash Protected Flash Erase/Program error LAN Controller error LPT Controller error 8

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8
Power ON Self-Test
Every DP-301P+ has been factory-tested to operate properly.
When the DP-301P+ is powered ON, it also automatically performs a Self-Test on
each of its major components. The final result of the Self-Test is signaled by the
state of the LPT LED indicator following the Self-Test. Preliminary to the actual
component tests, the three LED indicators are tested to confirm their steady and
flashing operation.
Immediately after power-up, all three of the green LEDs should illuminate steadily
for several seconds. Then the LPT LED should light OFF. Irregularity of any of the
three LEDs during these LED tests may mean there is a problem with the LEDs
themselves.
The actual component tests immediately follow the LED tests. A normal (no fault)
result is signaled by a simultaneous flashing of the LPT LED three times, followed
by a quiescent state with the LPT LED dark.
If the Self-Test routine traps any component error, then following the LED tests the
Self-Test will halt and the LPT LED will continuously signal the error according to
the following table. In the event of any such error signal, contact your dealer for
correction of the faulty unit.
LPT LED
Faulty Component
On
DRAM error
1 long 3 short
Flash Protected
1 long 5 short
Flash Erase/Program error
1 long 6 short
LAN Controller error
1 long 8 short
LPT Controller error