MuxLab Stereo Hi-Fi Balun Manual de usuario

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

Specifications

Environment Line level unbalanced analogue audio

Devices DVD players, satellite receivers, MPEG players, laptops, hi-

fidelity stereo audio amplifiers, audio switchers, AV

monitors and other line level audio equipment.

Transmission Transparent to the user

3 dB Bandwidth 20 Hz to 20 kHz over the distance range

Maximum Input 1.1 Vp-p

Insertion Loss per Balun Pair Less than 2 dB over the frequency range

Common Mode Rejection Ratio

(CMRR) Greater than 60 dB at 1 kHz

Greater than 40 dB over the frequency range

THD Less than 0.007% at 1 kHz

Audio Source Impedance 100 ohm maximum

Audio Receiver Impedance 10 kohm minimum

Max. Distance via

Cat 5E/6 UTP/STP Cable 3,250 ft (1 km)

Pin Configuration (RJ45) Audio 1 (White): Pins 1(R) & 2(T)

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

Cable:

Cat 5E/6 UTP/STP 24 AWG or lower solid copper twisted pair wire

Impedance: 100 ohm at 1 MHz

Maximum capacitance: 20 pf/ft

Attenuation: 6.6 dB/1,000 ft at 1 MHz

Cable: Coax Shielded audio cable

Connectors Two (2) RCA-M 6” cable leads

One (1) RJ45

Temperature Operating: 0º to 55ºC

Storage: -20º to 85ºC

Humidity: Up to 95% non-condensing

Enclosure ABS. Fire retardant plastic

Dimensions 2.40” x 2.25” x 1.00” plus 6” audio lead

Weight 3.1 oz (89 g)

Warranty Lifetime

Order Information 500028 Stereo Hi-Fi Balun

Stereo Hi-Fi Balun

500028

Quick Installation Guide

Overview

The Stereo Hi-Fi Balun (500028) allows unbalanced line level stereo audio to be

transmitted up to 5,000 ft (1.5 km) via an unshielded copper twisted pair (UTP) cable in

a point-to-point connection. Used in pairs, the product is designed for high fidelity

applications where full audio bandwidth (20 Hz to 20 kHz) is required. Used in pairs,

the Stereo Hi-Fi Balun eliminates costly and bulky audio cables, allowing audio

equipment to be connected or moved within a structured cabling environment.

Applications include: Audio distribution, high-fidelity sound systems, and custom

residential audio systems.

Installation

To install the Stereo Hi-Fi Baluns, perform the following steps:

1. One pair of Stereo Hi-Fi Baluns is required for each stereo channel.

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

shown in the following diagram.

Note: The Stereo Hi-Fi Balun is phase polarity sensitive. Therefore, in order to

achieve full stereo audio quality, please ensure that the wiring is straight-

through and according to EIA568 (A or B) standard.

3. Verify the colors of the RCA plugs and connect one (1) Stereo Hi-Fi Balun to the

left-audio and right-audio RCA connectors of the audio source.

4. Verify the colors of the RCA plugs and connect a second Stereo Hi-Fi Balun to the

left-audio and right-audio RCA connectors of the audio receiver at the remote end.

5. Complete the connection between the two (2) baluns, using standard UTP cable,

connector blocks and appropriate modular RJ45 outlets.

6. Power-on the audio equipment and check the audio quality. The audio should be

clear within the maximum specified distances. The following diagram shows a

typical configuration.

Troubleshooting

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

solutions in respect to the installation of the Stereo Hi-Fi Balun:

Symptom Probable Cause Possible Solutions

EMI interference Check that wiring is not too close to

transformers and ballasts.

Poor audio quality Split pair Ensure that the UTP pairs are not split and

that each pair of wires is twisted.

No power Check your audio system for power.

Open circuit Check wiring to ensure continuity

No audio Defective balun Change Stereo Hi-Fi Baluns for another

pair.

Audio phase cancellation Reversed wires Check for straight-through wiring.

Audio weak Distance specifications

exceeded

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 514-905-0588 (International).

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