MuxLab VideoEase CATV Balun II 500302 Manual

MuxLab Ikke kategoriseret VideoEase CATV Balun II 500302

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Specifications

Environment: Private and public broadband CATV, VHF and FM networks.

Devices: Terrestrial CATV, local channel amplified antennas, DVD players,

RF modulators, splitters, cable modems and other broadband video

equipment.

Transmission: T ransparent to the user

3dB bandwidth: 5 MHz to 900 MHz.

Video Channels Sup-

ported:

CATV 2-142, VHF channels 2-13, FM broadcast band.

Insertion Loss Per Pair: <9 dB: 5 – – 10 MHz <3 dB: 10 900 MHz

Return Loss: >10 dB: 15 – 370 MHz >7 dB: 370 – 770 MHz

>10 dB: 770 – 900 MHz

Common Mode Reje c-

tion (CMMR):

-20dB or higher at 5 MHz to 900 MHz.

Cable – UTP: 24-AWG or lower solid copper twisted pair.

Impedance: 100- -120 ohms

Cable – Coax: Impedance: 75-ohms at 1MHz (RG6)

Connector – Input: “F” connector – male

Connector - Output: RJ45 – female

RJ45 Pin Configura-

tion:

RJ45 Pins 7&8.

Maximum distance: Up to 100m (330ft) via Cat 5 UTP depending on channel fre-

quency and input power. Maximum 100m at CATV Channel 2.

May require tilt amplifiers at higher frequencies.

Temperature: Operating: 0° to 40°C. Storage: -10° to 70°C.

Enclosure: ABS.

Humidity: Maximum 95% (non-condensing)

Dimensions: 2.5” x 1” diameter (6.35 x 2.54 cm diameter)

Weig h t 1.05 oz (3 0 gms)

Regulatory Approval: FCC, CE

Warranty: Lifetime

Order Information 500302 CATV Balun II

Tel.: (514) 905- -0588, Fax: (514) 905 0589

Toll Free (North America): (877) 689-5228

E-mail: videoease@muxlab.com

URL: www.muxlab.com

94- -000605 B SE- -000582 B

VideoEase CATV Balun II

(500302)

Quick Installation Guide

Overview

The CATV Balun II allows traditional 75-ohm coaxial cable to be replaced by a single

(1) unshielded twisted pair (UTP) of wires in the CATV, VHF and FM environments.

Used in pairs, the CATV Balun II allows terrestrial broadband video and Internet equip-

ment to be integrated into a structured cabling system thereby facilitating moves, adds

and changes via any convenient modular wall outlet. Typically, the CATV Balun II is

installed on the connection between the RF head end and the set-top tuner or cable mo-

dem at the receiver end. Applications include; private RF networks, guestroom TV and

Internet services, apartments and condomin iums. The CATV Balun II is designed for

point- -to point connections only.

Installation

In order to install the CATV Balun II, perform the following steps:

1. Verify that the maximum distance between the two (2) CATV baluns is within

MuxLab specifications. Please refer to the specification table in this installation

guide or contact MuxLab Technical Support.

2. Caution: Do not attempt to open the housing. There are no user-serviceable

parts inside the CATV Balun II. Opening the unit will void your warranty.

3. Turn off power and disconnect the CATV video equipment by following the manu-

facturer’s instructions.

4. Make certain that modular outlets and cross connects to which you will connect

the CATV Balun II are configured properly and labeled appropriately to identify

the circuit.

5. Caution: Do not connect the CA TV Balun II to a telecommunication outlet wired

t o unrelated equipment. Making such a connection may damage the equipment

and/or the balun. Please ensure that all wiring is “straight-through” twisted pair.

6. Verify that the desired twisted pairs are not being used for other LAN or telephony

equipment.

7. The CATV Balun II operates in pairs.

8. Connect one CATV Balun II to the RF output at the head-end.

9. Caution: Do not mount the balun over equipment ventilation openings.

Covering the openings may cause the equipme nt to overheat.

10. Connect a line cord from the RJ45 modular jack of the CATV Balun II to the hori-

zontal wiring of the building.

11. At the receiver end, connect a CATV Balun II to the set -top tuner or cable mo-

dem.

12. Connect a line cord from the RJ45 connector of the CATV Balun II to the appro-

priate modular video wall outlet.

13. Power on the video equipment. See typical application below.

Troubleshooting

The following table describes some of the symptoms, probable causes and possible solu-

tions in respect to the inst allation of the CATV Balun II. If you still cannot diagnose

the problem, please call MuxLab Customer Technical Support at 877 - -689 5228 (toll-

free in North America) or (+1) 514- -905 0588 (International).

Sy mptom Probable Causes Possible Solutions

No video No continuity in video link

Check cable continuity between baluns.

No video No power Check power supplies.

No video Improper connection

Swapped pairs

Check that baluns are connected to cor-

rect video inputs and outputs.

Snowy picture Insufficient signal strength Increase signal power at head-end using a

“tilt” amplifier. Verify cable grade. Use

higher grade cable if necessary.

Over bright

image

Signal strength too high Attenuate signal by reducing amplifier

gain or by inserting a signal attenuator in

the link.

Application Tips

In a point- -to point scenario for CATV (superband and hyperband), VHF and FM, cable lengths of

up to 45 meters may be achieved without amplification if the nominal input is about 15dBm. In

some applications, a tilt amplifier may be required since the UTP losses are higher than coax at

the higher frequencies. Linear gain compensation of up to 20 -25dB at 750MHz is usually ade-

quate. Conversely, if amplification is used to compensate for losses at higher frequencies and long

distances, it may be necessary to attenuate the lower frequency, shorter distance signals to avoid

over-driving the TV monitors. The CATV Balun II may be used in conjunction with tilt/gain am-

plifiers, CATV splitters and splitters with built-in amplifiers. The following are some helpful

guidelines when planning your cabling:

1. Try for 10dBmv of signal level at each television channel. Use a little more for big screen

TVs. Measure the signal level at the high and low end of the spectrum to determine whether

a tilt amplifier is needed.

2. When laying out your system, there will be approximately 5dB of signal loss per 100' of

RG6-coaxial cable.

3. Please ensure all splitters and amplifiers are broadband. For UTP installations, splitters should

have 5 MHz to 900 MHz bandwidth with a bi-directional filter at 5 to 50 MHz.

4. Check and make sure that all televisions are set up for the proper frequency spectrum (i.e.

UHF or cable).

5. If extra channels are available, allow 1 to 2 channels spacing between “modulated” and "ac-

tive" channels.

6. Always compensate for insertion loss with a good amplifier. There will always be a drop in

signal strength when combining a modulator to an existing system due to insertion loss from

the combiner.

7. When combining an existing signal with a modulated signal, make sure to have equal signal

strength at the point of the combiner so one signal does not degrade the other.

8. When possible, use the lowest frequencies available for the modulated channels. Lower fre-

quency channels have lower signal loss on the cable runs.

9. When in doubt, run the signal a little high to the television and use an attenuator to lower the

signal strength going into the TV. Attenuators may be combined (i.e. two -3dB attenuators

will = -6dB).

10. Combine the modulator into the video distribution system as far "up -stream" as possible.

11. If the system needs to be amplified, use the amplifier as far "up -stream" as possible. For

example, place one amplifier at the head end and one tilt amplifier in each wiring closet

where the baluns are located.

Produkt Specifikationer

Mærke:	MuxLab
Kategori:	Ikke kategoriseret
Model:	VideoEase CATV Balun II 500302

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