MuxLab 500001 User manual

8495 Dalton Road, Montreal, Quebec, Canada. H4T 1V5
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Toll Free (North America): [phone]
E-mail: [email protected] URL: www.muxlab.com
© MuxLab Inc. 2010 94-000231-G SE-000115-G
Specifications
Environment Composite video and unbalanced audio for the consumer and
commercial market.
Devices DVD, VCR, camcorders, audio receivers, audio amplifiers, AV
switchers, splitters, AV mixers and other analogue audio-video
equipment featuring coaxial input or output with BNC or RCA
connectors.
Transmission Transparent to the user
Video Audio
Bandwidth DC to 8 MHz 20 Hz to 20 kHz
Peripherals’ impedance 75 ohms Source 100 ΩMax, Receiver 10 kΩmin.
Maximum Voltage Input 1.1 Vp-p 1.1 Vp-p
THD NA Less then 0.007% @ 1 kHz
Insertion Loss Less than 2 dB per
pair
Less than 2 dB per pair
Return Loss Better than 15 dB NA
Common Mode Rejection
Ratio (CMRR)
Greater than 40 dB NA
Max. Distance Cat5e/6: 2,200 ft Cat5e/6: 3250 ft
Cable:
Cat5e/6 UTP/STP
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
Cable: RCA Standard audio cable terminated by RCA connectors
Cable: BNC 75-ohm coaxial cable
Connectors One (1) BNC-receptacle (includes 9” coax jumper cable)
Two (2) RCA-receptacles
One (1) RJ45 jack
Pin Configuration Video: Pins 7(R) & 8(T)
Audio 1: Pins 1(R) & 2(T)
Audio 2: Pins 3(R) & 6(T)
Temperature Operating: 0° to 55°C
Storage: -20° to 85°C
Humidity: Up to 95% non-condensing
Enclosure Fire retardant plastic
Dimensions 2.40” x 2.25” x 1.00” (6.10 x 5.72 x 2.54 cm)
Weight 4.25 oz (121 g)
Warranty Lifetime
Order Information 500001 Stereo Audio-Video Balun
Stereo Audio-Video Balun
500001
Quick Installation Guide
Overview
The Stereo Audio-Video Balun allows the transmission of composite baseband video
signals and audio signals via unshielded twisted pair (UTP) cables in a Structured
Cabling System. The Stereo Audio/Video Balun is used in pairs to transmit standard
NTSC, SECAM and PAL composite video. It converts a composite baseband video
(75 ohms) and stereo-audio signal from coax to UTP.
The Stereo Audio-Video Balun is connected to the structured cabling via a modular wall
jack in the work area. It is equipped with a BNC 75-ohm connector and two standard
RCA phono jacks at one end and a RJ45 jack at the other end. The 500001 has a
20 Hz- 20 kHz bandwidth for high fidelity applications.
Applications
The Stereo Audio-Video Balun is designed for use with CCTV cameras, monitors,
DVR, DVD players, cableboxes, AVR, video-conferencing, camcorders and other
composite video/audio equipment. Applications include: security/surveillance
monitoring, video bulletin boards, financial information services, news services,
education, video training, airport displays, video capture, stock exchange, hotels and
convention centers.

© MuxLab Inc. 2010
Installation
To install a Stereo Audio-Video Balun, perform the following steps:
Caution: Do not attempt to open the housing. There are no user-serviceable parts
inside the Video Stereo Audio Balun. Opening the unit will void your
warranty.
1. Turn off power and disconnect the video equipment by following the
manufacturer’s instructions.
2. Make certain that telecommunications outlets and cross connects to which you will
connect the Stereo Audio-Video Balun are configured properly and labeled
appropriately to identify the circuit.
Caution: Do not connect the Stereo Audio-Video Balun to a telecommunication
outlet wired to unrelated equipment. Making such a connection may
damage the equipment and/or the balun. Please ensure that all wiring is
“straight-through.”
3. Verify that the desired twisted pairs are not being used for other LAN or telephony
equipment.
Caution: Do not mount the balun over equipment ventilation openings. Covering
the openings may cause the equipment to overheat.
4. The Stereo Audio-Video Baluns operate in pairs.
5. Depending on the equipment being connected, connect the BNC connector of the
Stereo Audio-Video Balun to the coax connector or cable of the video equipment.
The two audio channels provided may be used if required. Either one or both
channels may be used depending on the application. (BNC and phono plug cables
must be obtained separately.)
6. Connect one end of a UTP line cord to the RJ45 modular jack of the Stereo Audio-
Video Balun.
7. Plug the other end of the line cord into the appropriate video wall outlet or patch
panel.
8. Power up the video and/or audio equipment. The following diagram shows a
typical configuration.
Troubleshooting
The following tables describe some of the Stereo Audio-Video Balun symptoms,
probable causes and possible solutions regarding the Video Balun:
Video Symptom Probable Cause Possible Solutions
No continuity in video link Verify cable continuity between pairs of
baluns.
Power off Check power supplies of video equipment.No video
Improper connection and/or
swapped pair
Check that baluns are connected to correct
video inputs and outputs
Unusual colors Reversed polarity Check wiring and ensure straight-through
polarity
Background
pattern EMI interference
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.
Smearing Exceeded distance Verify cable grade. Use higher-grade cable if
necessary.
Exceeded distance Verify cable grade. Use higher-grade cable if
necessary. Increase contrast on monitor.
Weak contrast
Unusual link attenuation Verify cable distance using ohmmeter or
cable tester.
Image not stable Defective link or equipment Verify video equipment interface integrity.
Horizontal bars
moving slowly
Substantial crosstalk
between multiple video
sources
Consecutively turn off other video sources to
determine which video source is the cause of
interference.
Snowy picture Distance is near limit Verify cable grade; use higher-grade cable if
necessary; reduce color intensity at monitor.
Audio S
y
m
p
tom Probable Cause Possible Solutions
EMI interference Check that wiring is not too close to
Poor Quality Audio Split pair Correct the UTP pairs if they are split.
Power-off Check power supply.
Open contact Check wiring to ensure continuity. No Audio
Defective Audio Balun Change Audio Baluns for another pair.
Distance exceeds specs
Check DC loop resistance.
Reduce cable length or eliminate high-loss
components.
Weak Audio Lower grade UTP cable is
introducing high signal
losses.
Use signal repeater for extended distance.
Replace cable by higher grade.