Muxlab Quad Video Balun User Manual

Specifications

Environment
Devices

Transmission
Bandwidth
Maximum Video
Input
Insertion Loss
Return Loss
Common Mode
Rejection Ratio
Max. Distance:
Cat 5E/6 UTP/STP
Cable:
Cat 5E/6 UTP/STP

Cable: Coax
Connectors

Pin Configuration

Impedance
Temperature

Enclosure
Dimensions
Warranty
Order Information

Composite video. NTSC, PAL, SECAM. Component video (480i/p).
DVD players, cable boxes, video distribution amplifiers, security video
cameras, digital video recorders and other composite video equipment.
Transparent to the user
Video: DC to 8 MHz

1.1 Vp-p

Less than 2 dB per pair over the frequency range from DC to 8 MHz
Greater than 15 dB over the frequency range from DC to 8 MHz
Greater than 40 dB at 8 MHz

Composite video: 2,200 ft (less distance may result with DVR equip.)
Component video (YPbPr): 500 ft (152 m) (480i/p only )
24 AWG or lower solid copper twisted pair wire
Impedance: 100 ohms at 1 MHz
Maximum capacitance: 20 pf/ft
Attenuation: 6.6 dB/1,000 ft at 1 MHz
75-ohm coaxial cable.
Option 1: Four (4) RCA-receptacles for video, one (1) RJ45 jack
Option 2: Four (4) BNC-receptacles for video, one (1) RJ45 jack

Video 1: Pins 7(R) & 8(T) Video 2. Pins 3(R) & 6(T)

Video 3: Pins 4(R) & 5(T) Video 4: Pins 1(R) & 2(T)
Video: 75 ohms (RCA) unbalanced
Operating: 0° to 55°C
Storage: -20° to 85°C
Humidity: Up to 95% non-condensing
Fire retardant plastic

2.40” x 2.25” x 1.00” (6.10 x 5.72 x 2.54 cm)
Lifetime
500032 Quad Video Balun – RCA
500037 Quad Video Balun – BNC

Quad Video Balun – RCA (500032)
Quad Video Balun – BNC (500037)

Quick Installation Guide

Overview

The Quad Video Balun allows up to four (4) composite video signals to be transmitted
via an unshielded twisted pair (UTP) cable in a point-to-point connection. Used in pairs,
the Quad Video Balun eliminates up to four (4) coaxial cables, allowing audio-video
equipment to be connected via a space-efficient and cost-effective Category 5E/6
twisted pair cable. The Quad Video Balun also works in conjunction with other MuxLab
composite video baluns such as the 500000, 500009 and 500021.

8495 Dalton Road, Mount Royal, Quebec, Canada. H4T 1V5

Tel: [phone] Fax: [phone]

Toll Free (North America): [phone]

E-mail: [e-mail] URL: www.muxlab.com

© MuxLab Inc. 94-000308-C SE-000411-C

Installation

Troubleshooting

One (1) pair of baluns support four (4) composite video signals or one (1) component

video (YPbPr) and one (1) composite video signal via a Cat 5E/6 twisted pair. To install
the baluns, perform the following steps:

1. Identify the pin configuration of the baluns. Four (4) twisted pairs are required if

all four (4) signals are transmitted. The pin configuration follows the EIA/TIA
568A/B standard. The Quad Video Balun is reverse polarity sensitive. Please
ensure that wiring is straight-through (Ring to Ring, Tip to Tip).

2. At the video source end, connect a Quad Video Balun to the video output using the

appropriate number of RCA or BNC cables.

3. At the video display end, connect a Quad Video Balun to the video input using the

appropriate number of RCA or BNC cables.

4. Complete the connection between the two baluns, using standard Cat 5E/6 twisted

pair cable and connecting hardware, terminated on RJ45 plugs at both ends. Ensure
that there are no split pairs or taps.

5. Power-on the video equipment. Check the image quality and refer to the

troubleshooting table below if the image quality is unsatisfactory. The following
diagram shows a typical installation.

The following table describes some of the symptoms, probable causes and possible
solutions in respect to the installation of the Quad Video Balun:

Symptom Probable Cause Possible Solutions

No continuity in video link
Power off Check power supplies of video equipment.No video

Improper connection and/or
swapped pair

Unusual colors Reversed polarity

Background pattern EMI interference

Smearing Exceeded distance

Weak contrast

Image not stable Defective link or equipment Verify video equipment interface integrity.
Horizontal bars

moving slowly

Snowy picture Distance is near limit

Exceeded distance

Unusual link attenuation

Substantial crosstalk
between multiple video
sources

Verify cable continuity between pairs of
baluns.

Check that baluns are connected to correct
video inputs and outputs.
Check wiring and ensure straight-through
polarity
Identify possible radiating frequency sources
(i.e., wireless LANs, switching power
supplies). Try to isolate them from the video
connection.
Use shielded twisted pair grounded at both
ends.
Verify cable grade.
Use higher grade cable if necessary.
Verify cable grade.
Use higher grade cable if necessary.
Increase contrast on monitor.
Verify cable distance using ohmmeter or
cable tester.

Consecutively turn off other video sources to
determine which video source is the cause of
interference.
Verify cable grade.
Use higher grade cable if necessary.
Reduce color intensity at monitor.

If you still cannot diagnose the problem, please call MuxLab Customer Technical
Support at 877-689-5228 (toll-free in North America) or ([phone]
(International).

© MuxLab Inc.