Black Box IC565A-R2 Bedienungsanleitung

Black Box Audio-/Video-Extender IC565A-R2

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FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746

Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018

Web site: www.blackbox.com • E-mail: info@blackbox.com

Customer

Support

Information

February 2010

MT1000A-85-R4

Transmit up to four analog line signals

via an unshielded twisted-pair (UTP) cable

in a point-to-point installation.

Quad Audio Balun

IC565A-R2

1. Specifications

Environment — Unbalanced line-level analog audio

Bandwidth — 20 Hz to 20 kHz

Cable — CAT5e UTP/STP

Common Mode Rejection Ratio — Greater than 60 dB

at 1 kHz

Compatible Devices — DVD players, audio receivers, audio

amplifiers and audio mixers, audio matrix switches,

and other unbalanced line-level equipment

Ground Loop Isolation — Range of ±50 VDC

Impedance Transformation Ratio — Single unit: 4:1

(source:line)

Insertion Loss — Less than 2 dB over the frequency range

Maximum Distance for CAT5e/6 UTP/STP — 3250 ft.

(1 km)

Maximum Input Level — 1.1 Vp-p

Peripherals Impedance — Source: 100 M-ohms;

Receiver: 10 k-ohms

Pin Configuration — Audio 1: Pins 7 (R) and 8 (T);

Audio 2: Pins 3 (R) and 6 (T);

Audio 3: Pins 4 (R) and 5 (T);

Audio 4: Pins 1 (R) and 2 (T)

THD — Less than 0.007% at 1 kHz

Unbalanced In/Out Cable — Shielded, coaxial

Connectors — (4) RCA receptacles for audio, (1) RJ-45 jack

Temperature Tolerance — Operating: 32 to 131° F

(0 to 55° C);

Storage: -4 to +185° F (-20 to +85° C)

Humidity — Up to 95%, noncondensing

Enclosure — Fire-retardant plastic

Size — 2.4"H x 2.25"W x 1"D (6.1 x 5.7 x 2.5 cm)

Weight — 3.6 oz. (103 g)

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™

is a trademark of BB Technologies, Inc. Any third-party trademarks appearing in this publication are acknowledged to be the property of their respective owners.

IC565A-R2, version 1

2. Overview

The Quad Audio Balun enables up to four analog line audio

signals to be transmitted via an unshielded twisted-pair (UTP)

cable in a point-to-point connection. Used in pairs, the Quad

Audio Balun eliminates up to four coaxial cables, so audio-

video equipment can be connected via CAT5e/6 twisted-pair

cable, and it supports hi-fi audio transmission. The Quad Audio

Balun also works with other Black Box analog baluns, such

as the IC460A, IC465A, and IC466A.

3. Installation

One pair of baluns supports four mono unbalanced audio

channels or two stereo audio channels via CAT5 twisted pair.

Follow these steps to install the baluns:

1. Identify the pin configuration of the baluns. Four twisted

pairs are required if all four signals are transmitted. The pin

configuration follows the EIA/TIA 568A/B standard. Make

sure the wiring is straight-through (ring to ring, tip to tip).

See Figure 1.

Figure 1. RJ-45 connector pinning.

2. At the audio source end, connect a Quad Audio Balun to the

audio output using the appropriate number of RCA cables.

3. At the audio receiver end, connect a Quad Audio Balun

to the audio input using the appropriate number of RCA

cables.

4. Complete the connection between the two baluns, using

standard CAT5 twisted-pair cable and connecting hardware,

terminated on RJ-45 plugs at both ends. Make sure that

there are no split pairs or taps.

5. Power on the audio equipment. Check the sound quality

and refer to the troubleshooting table if the sound quality

is unsatisfactory. Figure 2 shows a typical installation.

Hi-Fi audio

source

Hi-Fi audio

receiver

IC565A-R2 IC565A-R2

CAT5e/6

4-pair

Figure 2. Typical application.

4. Troubleshooting

Table 1 describes some of the symptoms, probable causes, and

possible solutions you can refer to when installing the Quad

Audio Balun. If you still cannot diagnose the problem, call Black

Box Technical Support at 724-746-5500 or info@blackbox.com.

Table 1. Troubleshooting.

Symptom Probable Causes Possible Solutions

Poor audio quality

1. EMI interference Check that the wiring is not too

close to transformers and ballasts.

2. Split pair

Check if the UTP pairs are split and

if they’re correct. Each signal pair

must be twisted.

No audio

1. Power is off Check power supply.

2. Open contact Check wiring to ensure continuity.

3. Defective Audio

Balun

Change Audio Baluns for another

pair.

Audio weak

1. Exceeded distance

specifications

Check DC loop resistance and

verify if distance specification is

exceeded. Reduce cable length or

eliminate high-loss components.

2. Lower-grade UTP

cable is introducing

high signal losses.

Use a signal repeater for extended

distance.

Replace cable with a higher grade.

Produktspezifikationen

Marke:	Black Box
Kategorie:	Audio-/Video-Extender
Modell:	IC565A-R2
Produktfarbe:	Schwarz
Gleichstrom-Anschluss (DC):	Nein
Typ:	AV-Sender
Abmessungen (BxTxH):	57 x 25 x 61 mm
Externes Netzteil:	Nein
Maximale Auflösung:	- Pixel
Maximal mögliche Übertragungsstrecke:	1500 m
unterstütze Kabeltypen:	Cat5
Audioanschlüsse:	4 x RCA F
Anzahl der Verbinder:	5
RJ-45-Ausgangsanschlüsse:	1