NE1000 CATV Optical Transmitter Operation and Maintenance Guide
case.
2. Make sure the front panel LASER ON/OFF Key Switch and the rear panel
ON/OFF switch are at the OFF position.
3. Connect the AC power cord into the power jack on the rear panel of the NE1000.
4. Connect the RF signal into the RF INPUT port.
5. Remove the cover from the rear panel Optical Output port. Connect the optical
fiber to the Optical Output port. (Be sure to properly clean the optical fiber
connector prior to connecting it to the NE1000.)
6. Properly terminate the other end of the optical fiber (such as into an optical
receiver).
7. Plug the power cord into a 110 volt AC power source to power up the NE1000.
8. Set the number 1 dip switch for the intended gain mode (AGC or MGC).
9. Switch the rear panel ON/OFF switch to the ON position. The Front Panel AC
POWER LED will light up.
10. Switch the front panel LASER ON/OFF Key to the LASER ON position. The
LASER ON LED will light up to indicate that the laser is powered up.
11. Inspect the LASER ALARM indicator LEDs. None of the LEDs should be lit. If
any of the LEDs are lit, then turn the laser key back to the off position and
contact Holland Electronics LLC for assistance.
12. Inspect the MODULATION LEVEL LED indicators. The transmitter can operate
either in LOW, NORMAL, or HIGH modulation levels.
(For AGC mode: If there is less than 80 NTSC channels being input into the
NE1000, then the LOW led may light up. The transmitter will operate normally
as long as the power for each input channel is 15 – 25 dBmV. )
13. If needed, adjust the AGC/MGC trimpots to get an adequate output power.
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