FO-TX 2-EC
FO-TX 2-OPT
FO-RX 2-EC
Instruction manual
FO-TX 2-EC
FO-TX 2-OPT
FO-RX 2-EC
Revision date: 07/2013
Sennheiser electronic GmbH & Co. KG
Am Labor 1, 30900 Wedemark, Germany
www.sennheiser.com
1/10
Short description
These devices are designed to extend radio microphone remote receiving aerials to distances of up
to 25 km from their associated receivers, allowing receiving antennas to be placed at much greater
distances from the receivers than would be possible using any type of coaxial cable. This is of
particular benefit to outside broadcast units providing coverage of events spread over large sites
for example such as golf courses, horse racing and motor racing circuits.
FO-TX 2-EC (with two E2000-APC fibre out sockets) and
FO-TX 2-OPT (with Neutrik opticalCON DUO™ socket)
The fibre optical transmitters are designed to convert the UHF radio signals from two receiving
antenna feeds and transmit the resulting signals down two cores of single mode optical fibre. The
transmitter can be powered by 240 V
AC
, 12 V
DC
or via V-lock battery inside the housing. An internal
switchable bias-T will provide 12 V/200 mA to the antenna inputs for powering head amplifiers
such as the AB 1036 antenna booster. A 3/8” Whitworth thread adaptor is provided to allow for
flexible mounting solutions.
FO-RX 2-EC
The fibre optical receiver converts the resulting signal from the fibre optical transmitter to two RF
outputs. There is visual indication on the unit to display the power status and battery level of the
fibre optical transmitter, as well as indication of the light level received from the individual fibre
cores. The receiver is designed to be coupled alongside a Sennheiser ASA-1 active antenna splitter
active RF distribution unit for additional distribution of RF signals.
