DP-300 Multiprotocol Fast Ethernet Print Server User’s Guide
Unpacking and Installation
6
7.
Plug the DC power adapter’s DC output plug into the DC 12V power socket on the side
panel of the DP-300.
8.
Plug the power adapter into an electric service outlet. This will supply power to the DP-
300, as it has no external power switch. The Power/Tx LED on the DP-300’s front panel
should light steady green, and the DP-300’s self-test will proceed.
Power On Self-Test
When the DP-300 is powered on, it 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 LPT1, LPT2, and COM
LED indicators 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 five of the LED’s should show steady green for several seconds.
Then the LPT1, LPT2, and COM LEDs should flash on simultaneously three times. Irregularity
of any of the three LEDs during these LED tests may mean there is a problem with the LEDs
themselves. Contact your dealer for correction of any LED problems before proceeding.
The actual component tests immediately follow the LED tests. A normal (no fault) result is
signaled by a series of three cycles of sequential flashing of the three LEDs, followed by a
quiescent state with all three LEDs dark.
If the self-test routine traps any component error, then following the LED tests the self-test will
halt and the LED’s 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.
LED Name Faulty
LPT1 LPT2 COM
Component
off off on/steady COM error
off off flashing Flash ID error
off on/steady off LPT2 error
off on/steady on/steady LAN Controller error
off on/steady flashing LAN Memory error
off flashing off
Parallel-2 Controller
error
off flashing on/steady
EEPROM error
off flashing flashing Flash Protected
on/steady off off LPT1 error
on/steady off on/steady Timer INT error
on/steady off flashing LAN IO Base error
on/steady on/steady off RAM error
flashing off off Parallel-1 Controller
error
flashing flashing off Flash erase/program
error
flashing flashing flashing Need to reload
firmware
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