LEMAR INDUSTRIAL CORP. No51, Lane 40, Dashing Street, TAINAN, TAIWAN TEL: +886-6-358 8686 FAX: +886-6-358 9797 firstname.lastname@example.org http://www.lemar.com.tw CATV balun Standard RJ45 Shielded type Description: The CATV Balun allows traditional 75-ohm coaxial cable to be replaced by a single pair of Shielded Cat 5 STP cable in the CATV, VHF and FM environments in certain applications. Used in pairs, the CATV Balun allows broadband CATV equipment to be integrated into structured cabling systems thereby allowing CATV equipment to be moved or added to any convenient modular wall outlet. It provides a versatile cabling solution for broadband video systems used by schools, government, corporations, hospitals, financial institutions, hotels and convention centers. The CATV Balun works in conjunction with CATV splitters, amplifiers and cable modems for a total cabling solution. Features: 1. 2. 3. 4. No AC power or batteries needed. Bi-directional signal conversion. Ultra-miniature enclosure Shielded RJ45 jack Specification: Environment Devices Bandwidth Impedance Insertion loss Return loss Common mode rejection Connectors Cable-STP Cable-Coax Max. distance Environment required Private and public broadband CATV, VHF and FM networks. CATV, satellite receivers, VCR and other broadband video equipment. 5MHz to 862MHz 75 ohm to 100 ohm Less than 3dB ( 5dB max for CATV 2-27) More than 18dB from 10 to 862Mhz More than 20dB from 40 to 862Mhz Shielded RJ45 jack pins 8+/7-, F(Male/Female) or PAL(Male/Female) Cat 5 or better, 24 gauge typical Max. capacitance :20pf/ft Attenuation: 6.6dB/1000ft at 1MHz Impedance: 75ohm at 1MHz (RG6) Max. 25ft. of coax allowed per end to end link 60m Cat.5 cable AWG 24 100m with amplifier Operating temp. 0 to 55° C Storage temp. -22 to 85°C Humidity up to 95% All the contents above are subjected to change without notice. Installation: 1. 2. 3. 4. 5. The balun requires one pair of STP cable to send the CATV signal, two baluns be used in pair are required. Run in your STP Cable between CATV source and TV. Put Cat5 Cable into the RJ45 Plug as the following diagram of standard connection order carefully. It is easy to make the mistake at this step. Therefore, please make sure you get all the cores into RJ45 plug in correct order and all cores go to the end of RJ45 plug before crimping. The brass pins will be pressed in to the individual cores and locked the plug on to the cable by crimping tool. Connect the CATV shielded Type Baluns to source and the TV. Put the both end of prepared Cat5 Cable with RJ45 plug into the Baluns. Pin 1 2 3 4 5 6 7 8 Color of Core White / Orange Solid Orange White / Green Solid Blue White / Blue Solid Green White / Brown Solid Brown Application: Troubleshooting: No Picture 1. Wrong wire colors have been used in wrong order please recheck the connection order. 2. RJ45 plug has not been put on correctly, either the cores are in wrong order or the cores are not far enough into the plug and not been crimped properly. Cut off the end again and re-crimp. 3. The cable is damaged or there is a short or open circuit on the wire, please replace the wire. Poor Picture 1. RJ45 plug has not been put on correctly, either the cores are in wrong order or the cores are not far enough into the plug and not been crimped properly. Cut off the end again and re-crimp. 2. Cable runs too long. The picture will deteriorate if the Cat 5 cable runs too long. 50 meters is the maximum distance for a passive balun. 3. Strong magnetic and/or electric field might affect picture quality, please keep hook-up away from them. 4. Check if qualified cables had been used, poor cables might affect pictures quality. Warranty: Our products have a period of one year warranty. Lemar warrants that this product is to be free from defect in materials and workmanship, for a period of one year from the date of the purchase. The warranty given by Lemar is in lieu of any other warranties, express or implied. This warranty does not apply to units abused through misuse or subjected to improper and/or excessive voltage, beyond our control. Lemar assumes no responsibility for damages or penalties incurred resulting from the use of this product. Lemar’s liability under any warranties shall be discharged by replacing or repairing, at our option, the defective product. Lemars’ liability for any product shall not exceed a refund of the purchase price. The warranty listed here is intended only as a summary of your full and complete warranty. For a full and complete warranty of this product, please contact Lemar. Caution: Do not attempt to open the body, as there are no user-serviceable parts inside Balun. Opening the unit will void your warranty.
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