MuxLab S-Video / Hi-Fi Balun Installation guide

Specifications

Environment

Devices

S-Video equipment

DVD players, VCR, satellite receivers, MPEG players, laptops, notebooks, monitors, LCD projectors, CCD cameras, video switchers, sequencers, digital video servers, video multiplexers, S-Video splitters,

S-Video converters and other S-Video equipment.

Transparent to the user Transmission

Bandwidth

Impedance

Maximum Input

Insertion Loss

Return Loss

Common Mode Rejection

Ratio (CMRR)

S-Video

DC to 6 MHz

75 ohms

1.1 Vp-p

Less than 2 dB per pair over the frequency range from DC to 6 MHz

Better than 15 dB over the frequency range

Greater than 40 dB over the frequency range

Audio

20 Hz to 20 kHz

600 ohms min.

1.1 Vp-p

Less than 2 dB per pair over the frequency range

N/A

Enclosure

Dimensions

Weight

Warranty

Order Information

Greater than 60 dB at 1 kHz

Greater than 40 dB over the frequency and distance range

3,250 ft (990 m) Max. Distance via

Cat 5E/6 UTP/STP Cable

Pin Configuration (RJ45)

EIA 568 A or B

Cable:

Cat 5E/6 UTP/STP

Connectors

Temperature

1,000 ft (305 m)

S-Video Luma: Pins 7(R) & 8(T)

S-Video Chroma: Pins 4(R) & 5(T)

Reverse Polarity Sensitive

Audio 1: Pins 1(R) & 2(T)

Audio 2: Pins 3(R) & 6(T)

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

One (1) 4-pin Mini DIN jack for S-Video

Two (2) RCA audio jacks for stereo audio

One (1) RJ45 for Cat 5E/6

Operating: 0º to 55ºC

Storage: -20º to 85ºC

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)

2.1 oz (60 g)

Lifetime

500038 S-Video/Hi-Fi Balun, Female

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

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

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

E-mail: [email protected] URL: www.muxlab.com

© MuxLab Inc.

94-000392-B SE-000422-B

S-Video / Hi-Fi Balun

500038

Quick Installation Guide

Overview

The S-Video/Hi-Fi Balun allows one S-Video signal and one hi-fidelity stereo audio channel to be transmitted via an unshielded twisted pair (UTP) cable in a point-to-point connection for more versatile cabling. Used in pairs, the S-Video/Hi-Fi Balun eliminates costly and bulky S-Video and audio cable, allowing S-Video equipment to be connected or moved to any convenient modular outlet. The S-Video/Hi-Fi Balun also works in conjunction with MuxLab’s Audio/Video Distribution Hub (500200) to allow S-Video programming to be distributed via UTP. Applications include: Classroom video distribution, commercial and home audio/video systems, hospital video training, video conferencing, and video kiosks.

Installation

One (1) pair of baluns is needed to complete one composite stereo audio-video connection via Cat 5E/6 twisted pair. To install the baluns, perform the following steps:

1. Identify the pin configuration of the baluns. Two (2) twisted pairs are required for

S-Video and two (2) twisted pairs are required for stereo analog audio. The pin configuration follows the EIA/TIA 568A/B standard. The Stereo Hi-Fi Video

Balun is reverse polarity sensitive. Please ensure that wiring is straight through

(Ring to Ring, Tip to Tip).

2. Plug one (1) balun into the S-Video/stereo audio output of the video source according to the color code of the RCA cable leads.

3. Plug the second balun into the S-Video/Hi-Fi Balun input of the video screen or receiver at the remote end.

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 audio-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.

Troubleshooting

The following tables describe some of the symptoms, probable causes and possible solutions in respect to the installation of the Stereo Hi-Fi Video Balun:

Video Symptom Probable Cause

No video

Unusual colors

Background pattern

Smearing

Weak contrast

No continuity in video link

Power off

Improper connection and/or swapped pair

Reversed polarity

EMI interference

Exceeded distance

Exceeded distance

Unusual link attenuation

Possible Solutions

Verify cable continuity between pairs of baluns.

Check power supplies of video equipment.

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.

Image not stable

Horizontal bars moving slowly

Snowy picture

Defective link or equipment

Substantial crosstalk between multiple video sources

Distance is near limit

Verify video equipment interface integrity.

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.

Audio Symptoms Probable Causes

EMI interference

Poor audio quality

No audio

Audio phase cancellation

Audio weak

Split pair

No power

Open circuit

Defective balun

Reversed wires

Distance specifications exceeded

Possible Solutions

Check that wiring is not too close to transformers and ballasts.

Ensure that the UTP pairs are not split and that each pair of wires is twisted.

Check your audio system for power.

Check wiring to ensure continuity

Change S-Video/Hi-Fi Baluns for another pair.

Check for straight-through wiring.

Check DC loop resistance and verify if distance spec is exceeded. Reduce cable length or eliminate high-loss components.

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).

© MuxLab Inc.