Sennheiser Fo-tx 2-OPT, Fo-tx 2-EC, Fo-rx 2-EC User Manual
FO-TX 2-EC
FO-TX 2-OPT
FO-RX 2-EC
Revision date: 07/2013
Instruction manual
FO-TX 2-EC
FO-TX 2-OPT
FO-RX 2-EC
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
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.
, 12 VDC or via V-lock battery inside the housing. An internal
AC
Sennheiser electronic GmbH & Co. KG
Am Labor 1, 30900 Wedemark, Germany
www.sennheiser.com 1/10
Safety instructions
• Read this instruction manual
• Keep this instruction manual. Always include this instruction manual when passing the product on to
third parties.
• Heed all warnings and follow all instructions in the instruction manual.
• Do not clean the product with abrasives.
• Do not place the product near any heat sources such as radiators, stoves or other devices (including
amplifiers) that produce heat.
• Only use attachments/accessories specified by Sennheiser.
• Refer all servicing to qualified service personnel. Servicing is required if the product has been damaged
in any way, objects have fallen inside, or the product does not operate properly.
• To reduce the risk of short circuits, do not use the FO-RX 2-EC near water and do not expose it to rain or
moisture.
• The FO-TX 2-EC and FO-TX 2-OPT are weather-proof, but should not be exposed to extreme conditions,
and should not be left standing in water.
• Rechargeable cells should be disposed of in a dedicated battery recycling facility.
Replacement parts
When replacement parts are required, be sure the service technician uses replacement parts specified by
Sennheiser. Unauthorized solutions may result in fire, electric shock, or other hazards.
Intended use
Intended use of the product includes:
• Having read these instructions especially the chapter “Safety instructions“.
• Using the products within the operating conditions.
“Improper use” means using the products other than as described in this instruction manual, or under
operating conditions which differ from those described herein.
Delivery includes
FO-TX 2-EC and FO-TX 2-OPT
• 13 amp Neutrik powerCON™
•
Instruction manual
Note: The internal V-lock battery is not incluced in the delivery (see also on page 5).
FO-RX 2-EC
• Sennheiser NT1-1 UK power supply unit (13.8 V
• DC link cable for powering the ASA 1 active antenna splitter
• Instruction manual
/2A), Article No. 503874
DC
FO-TX 2-EC, FO-TX 2-OPT, FO-RX 2-EC
07/2013 2/10
Contents
1 Product overview............................................................................................4
1.1 Elements of the FO-TX 2-OPT/FO-TX 2-EC ....................................................... 4
1.2 Internal elements of the FO-TX 2-EC/FO-TX 2-OPT........................................ 5
1.3 Elements of the FO-RX2-EC................................................................................. 6
1.4 Internal elements of the FO-RX2-EC ................................................................. 7
1.5 Block diagram........................................................................................................ 7
2 Technical data.................................................................................................8
3 Important notes for using the devices........................................................9
3.1 FO-TX 2-EC and FO-TX 2-OPT.............................................................................. 9
3.1.1 Powering by DC using a 4-pin XLR socket .....................................................................9
3.1.2 Powering by V-lock battery..............................................................................................9
3.1.3 RF input powering ..............................................................................................................9
3.1.4 Exchanging the optical outputs.......................................................................................9
3.2 FO-RX2-EC .............................................................................................................. 9
4 Manufacturer declarations......................................................................... 10
FO-TX 2-EC, FO-TX 2-OPT, FO-RX 2-EC
07/2013 3/10
Loading...