Olson Technology MUSCLE-300C - Manual (Page 5)

OPERATIONAL SETUP – RETURN PATH TRANSMITTER
First mount the OTOT-300C in a suitable location.
Next, be certain that electrical power is NOT applied to the transmitter. The green
Power LED should be dark. Then clean and attach the optical fiber. Electrical
power may now be applied.
The OTOT-300C transmitter is a key component in a CATV Return Path optical
link. Proper RF input level to the OTOT-300C is critical to good performance. The
RF input level to any optical transmitter is dependent on the number of channels
being transmitted. As the number of carried channels is lowered, the RF input level
to the transmitter can be raised. This results in increased RF levels at the receiver
and improves NPR. Links should be designed and transmitters should be set up
using values that represent the maximum number of channels likely to be carried.
For a normal 5-42MHz return path load, the RF Input Level should be adjusted so
that the signal at the RF Test Point is +10dBmV per channel.