LEMAR INDUSTRIAL CORP. CATV balun Standard RJ45 Shielded

LEMAR INDUSTRIAL CORP. CATV balun Standard RJ45 Shielded
LEMAR INDUSTRIAL CORP.
No51, Lane 40, Dashing Street,
TAINAN, TAIWAN
TEL: +886-6-358 8686 FAX: +886-6-358 9797
lemarnet@ms7.hinet.net 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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