7-2
Q-Series
®
Optical – QFOT1L Series Optical Transmitter – Installation & Operation Manual
CHAPTER 7: INSTALLATION & ADJUSTMENT
When MGC increases, the RF level to the DFB laser decreases; when MGC decreases, the RF level to the
DFB laser increases. Therefore the user can decrease or increase the optical modulation index (OMI) of this
transmitter. When changing the MGC value, it is suggested to observe the RF performance at the front panel -20
dB test port or the RF port of an optical receiver linked with this transmitter.
The recommended MGC value of the transmitter is attached on the side of the transmitter along with the
transmitter serial number.
e) Re-measure optical output power, make sure that optical output power being normal, remove standard fiber test
jumper and optical power meter, connect the equipment to network and end the installation.
