Revision date: 07/2013 Instruction manual FO-TX 2-EC FO-TX 2-OPT FO-RX 2-EC 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 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. 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 /2A), Article No. 503874 DC link cable for powering the ASA 1 active antenna splitter Instruction manual 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
1 Product overview 1.1 Elements of the FO-TX 2-OPT/FO-TX 2-EC FO-TX 2-OPT FO-TX 2-EC Three LED indicators for mains, DC or battery powering mode Weatherproof 1200 Peli case AC IN mains Neutrik powercon socket 12 V DC IN power supply unit socket (XLR-4 male) FO-TX2-OPT: One Neutrik opticalcon DUO out socket FO-TX2-EC: Two E2000-APC fibre out sockets Note: An opticalcon DUO/E2000-APC adaptor will be available on request. RF in /12 V DC out socket A RF in /12 V DC out socket B 07/2013 4/10
1.2 Internal elements of the FO-TX 2-EC/FO-TX 2-OPT V-lock battery (not incluced in the delivery) Two DC switches for the fibre modules Bias-T switches Programming port for fibre TX 07/2013 5/10
1.3 Elements of the FO-RX2-EC Bargraph display for laser light level A Bargraph display for laser light level B Bargraph display for the battery level LED indicators for mains, DC or battery powering mode ON/OFF button E2000-APC fibre in socket A EC2000-APC firbre in socket B BNC RF out socket A BNC RF out socket B Two DC IN sockets for NT 1-1 power supply units (13.8 V DC /2 A max.) with strain-relief 07/2013 6/10
1.4 Internal elements of the FO-RX2-EC DATA SELECT switch for channel A or channel B The transmitter sends the data (with the battery and power suppy status) simultaneously to receiver channel A and B. The receiver s front panel displays this signal. Select your channel, if you have connect one channel only or if you would check one connected channel separately. 1.5 Block diagram RF transmitting signal RF receiver BNC Antenna A Antenna B RF out A Optical A BNC RF out B FO-RX2-EC OPT Optical B OPT FO-TX-2 BNC RF in A RF in B BNC 25 km max. 07/2013 7/10
2 Technical data System Frequency range Distance max. RF gain 470 MHz to 790 MHz (other frequency ranges up to 1Ghz will be available on request) up to 25 km 0 db ±3 db FO-TX 2 Power supplies AC IN (via Neutrik powercon plug) DC IN (via power supply unit) 90 to 264 V AC at 50 to 60 Hz 12 V DC (XLR-4 socket, male) Pin 1: GND Pin 4: +12 V DC Pins 2 and 3 are not connected Not solder side GND 1 2 3 4 +12 V DC Internal V-lock battery (not incluced in the delivery) Commercial V-mount battery Voltage 14.8 V Dimensions (L x W x D max) 110 x 73 x 45 mm Power consumption with DC power supply unit only, without antennas 600 ma with AC mains supply only 18 W max. RF inputs Type N, 50 ohms Antenna DC supply 12 V DC, max. 200 ma Fibre connectors FO-TX 2-EC Two E2000-APC fibre out sockets FO-TX 2-OPT One Neutrik opticalcon DUO socket Housing type Weatherproof 1200 Peli case Dimensions (L x W x D) approx. 260 x 246 x 124 mm Weight (without battery) 2.77 kg FO-RX2-EC Power supply Sennheiser NT 1-1 power supply unit with 13.8 VDC/2 A Type N, 50 ohms ½ rack width unit RF outputs Housing type Dimensions (W x D x H) approx. 210 x 190 (with connecors) x 45 Weight (without battery) 2.77 kg 07/2013 8/10
3 Important notes for using the devices 3.1 FO-TX 2-EC and FO-TX 2-OPT The transmitters can be powered by 240 V AC, 12 V DC or via V-lock battery inside the housing. The three powering sources and the transmitter s battery status will be transmitted via both fibre channels. 3.1.1 Powering by DC using a 4-pin XLR socket The DC power supply unit is not included in the delivery. When wiring a 4-pin female XLR to a DC supply, pin 1 to ground and pin 4 to +12 V DC. The pins 2 and 3 will not be connected (see also on page 8). 3.1.2 Powering by V-lock battery The battery is not incluced in the delivery The transmitter does not charge the battery, for charging it must be removed. The battery can be installed alongside another power source as a backup. 3.1.3 RF input powering 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. 3.1.4 Exchanging the optical outputs For the optical outputs, the unit can be supplied with a Neutrik Opticalcon DUO socket or two E2000-APC sockets. These can be exchanged in the field by suitable qualified personnel. 3.2 FO-RX2-EC Supply the receiver with the Sennheiser NT 1-1 power supply unit only. The two DC jack sockets are wired in parallel and are interchangeable. Use the supported DC link cable for powering the ASA 1 active antenna splitter. ATTENTION! Damage of the receiver! Voltages of more than 16 V DC may irreparably damage the receiver. Ensure that the RF outputs are not exposed to an excessive bias voltage from the input of the equipment they are connected to. The two laser light level bargraph displays indicate the level of the light signal received down fibre channels A and B (not the RF level transmitted on that channel). A low laser level may degrade the output RF signal, however, as there are many other factors affecting the performance of the connected equipment, there is no definite threshold level for operation. Rather, these indicators should be used as fault finding tools. The other bargraph display indicates the status of the battery, and the LEDs indicate the presence of the three possible power sources. In the absence of this information from a connected FO-TX 2-EC, the LEDs will flash in sequence. As this information is transmitted down both fibre channels, you may select which channel is used by the front display, using the internal data select A/B switch. This will not be necessary in normal operation. 07/2013 9/10
10 4 Manufacturer declarations For the current warranty conditions visit our website at www.sennheiser.com or contact your Sennheiser partner: In compliance with RoHS Directive (2002/95/EC) CE Declaration of Conformity R&TTE Directive (1999/5/EC) EMC Directive (2004/108/EC) The declarations are available on our website at www.sennheiser.com Before putting the products into operation, please observe the respective country-specific regulations. 07/2013 10/10