MuxLab Stereo PC-Audio Balun Manual

MuxLab AV forlænger Stereo PC-Audio Balun

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© MuxLab Inc.
Specifications
Environment Line level unbalanced analogue audio
Devices DVD, VCR, camcorders, audio mixers, audio matrix switchers,
audio splitters, audio distribution amplifiers, boosters, satellite
receivers, MPEG players, laptops, stereo audio amplifiers, audio
switchers, integrated TV monitors and other line level audio
equipment
Transmission Transparent to the user.
Bandwidth (3dB point)
(400 O source & 50 kO
receiver)
Up to 1,000 ft (305m): 60Hz - 20 kHz
1,000 ft (305m) to 5,000 ft (1.5 km): 100Hz - 20 kHz
Maximum Input Level 1.1Vp-p
Insertion Loss per Balun Pair Less than 1 dB per pair over the frequency range
Common Mode Rejection
(CMMR)
Greater than 60 dB @ 1 kHz
Audio Source Impedance Less than 600 ohms
Audio Receiver Impedance 10 k ohms or greater
Impedance Transformation
Ratio
Single unit: 4:1 (source: line)
Cable – UTP
24 gauge or lower solid copper twisted pair wire impedance: 100
ohms at 1 MHz. Maximum capacitance: 20 pf/foot.
Attenuation: 6.6 dB/1000 ft at 1 MHz
Max. Distance – Cat 5 UTP 5,000 ft (1,525m)
Connectors Two (2) RCA-M 6” cable leads
One (1) RJ45
Pin Configuration (RJ45) Audio 1 (Left): pins 1[R] & 2 [T]
Audio 2 (Right): pins 3 [R] & 6 [T]
Temperature Operating: 0º º º º to 55 C. Storage:-20 to 85 C. Humidity: up to 95%
Enclosure ABS. Fire retardant plastic
Dimensions 1.875” x 1.0” diameter plus 6” audio lead
Weight 1.0 oz (28 gms).
Warranty Lifetime
Order Information 500030 Stereo PC-Audio Balun
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 000638 000638- - -A SE -A
Stereo PC- )Audio Balun (500030
Quick Installation Guide
Introduction
The VideoEase Stereo PC-Audio Balun (500030) allows unbalanced line level stereo
audio to be transmitted up to 5,000 ft (1.5km) via unshielded copper twisted pair (UTP)
in a point- - -to point connection. The product is designed for mid range audio applications.
Used in pairs, the Stereo PC-Audio Balun eliminates costly and bulky audio cable,
allowing audio equipment to be connected or moved within a structured cabling
environment. The 500030 also works in conjunction with other MuxLab audio-video
products including the 500001, 500012 19 27, 5000 , 5000 and 500200 for a more
complete cabling solution. Applications include; audio distribution, custom residential
systems and intercom systems.
Installation
To install the Stereo PC-Audio Baluns, perform the following steps:
1. . One Stereo PC-Audio Balun is required for the PC stereo output
2. Identify the pin configuration of the baluns. Two (2) twisted pairs are required
as shown in the following diagram.
© MuxLab Inc.
Note: The Stereo PC-Audio 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 PC-Audio
Balun to the PC audio 3.5mm connector of the PC output.
4. Verify the colors of the RCA plugs and connect a compatible MuxLab Stereo
Audio Balun (i.e. 500027) to the left- -audio and right audio RCA connectors of
the TV or 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 using the 500030 and the 500027.
Troubleshooting
The following table describes some of the symptoms, probable causes and possible solutions
in respect to the installation of the Stereo PC-Audio Balun. 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).
Symptom Probable Causes Possible Solutions
Poor audio
quality
EMI interference. Check that wiring is not too close to
transformers and ballasts.
Split pair Ensure that the UTP pairs are not
split and that each pair of wires is
twisted.
No audio No power Check your audio system for power.
Open circuit Check wiring to ensure continuity
Defective balun Change Stereo PC-Audio 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.

Produkt Specifikationer

Mærke: MuxLab
Kategori: AV forlænger
Model: Stereo PC-Audio Balun

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