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
