MuxLab 500024 Installation Guide

Specifications

Environment

Baseband composite video; NTSC, PAL, SECAM

Devices

12VDC analog CCTV cameras

Transmission

Transparent to the user.

Video

Bandwidth

DC to 8 MHz.

Impedance

Input: 75 ohms (BNC); Output: 100 ohms (RJ45)

Maximum Input

1.1Vp-p

Insertion Loss

Less than 2 dB per pair over the frequency range from DC to 8 MHz

Return Loss

Greater than 15 dB over the frequency range from DC to 8 MHz

Common Mode Rejection

Greater than 40 dB @ 8 MHz

Max. Distance – Colour

Cat 3 –1,200 ft (365m); Cat 5e/6 – 2,200 ft. (670m)*

*Certain models of DVR may yield shorter distances of 1,000 to 1,500 ft

Max. Distance – Black & White

Cat 3 –1,500 ft (457m); Cat 5e/6 – 2,500 ft (762m)

Remote Power (i.e.; 24 VAC, 28 VAC)

Wiring

Remote low voltage power supported via three (3) twisted pairs. A Class II power
supply is recommended.

Input Voltage

13 to 30VAC/DC

Output Voltage

12 VDC

Output Current

400 mA

Max. Distance – Colour

795 ft. (242m) with 24VAC or 1,113 ft. (339m) with 28VAC*

*With a Maximum Consumption of 400mA

Max. Distance – Black & White

1,586 ft. (478m) with 24VAC or 2,220 ft. (677m) with 28VAC*
*With a Maximum Consumption of 200mA

Mechanical & Environmental

Cable – UTP

24 AWG 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

Cable – Coax

Impedance: 75 Ω at 1 MHz. (RG59/U). Max. 25 ft. of coax allowed end to end.

Connectors

Combined signals: RJ45 Video: BNC-male 8” mini-coax lead
Power: 2-wire lead

Pin Configuration*

*Reverse polarity sensitive

Signal

RJ45 Pin

Cable Lead Color

Power A

1 (common with 3&5)

Red Power B

2 (common with 4&6)

Black Power A

3 (common with 1&5)

Red Power B

4 (common with 2&6)

Black Power A

5 (common with 1&3)

Red Power B

6 (common with 2&4)

Black Video BNC Center (Tip)

7 [T] opposite to 500000

Mini-coax

Video BNC Ground (Ring)

8 [R] opposite to 500000

Mini-coax

Temperature

Operating: 0° to 55°C. Storage:-20° to 85°C. Humidity: up to 95%

Enclosure

ABS fire retardant plastic

Dimensions

2.4” (6.1cm) x 2.25” (5.5cm) x 1.0” (2.5cm) plus cable leads; 8” (20cm) for
video; 10” (25.4cm) for power lead

Weight

3.0 oz (85 gms)

Warranty

Lifetime

Order Information

500024-CNV CCTV Power-Thru Converter Balun

Tel.: [phone] Fax: [phone]

Toll Free (North America): [phone]

E-mail: [e-mail] URL: www.muxlab.com

94-000732-A SE-000732-A

CCTV Power-Thru Converter Balun (500024-CNV)

Quick Installation Guide

Introduction

The CCTV Power-Thru Converter Balun (500024-CNV) allows video and remote
power to be transmitted via one 4-pair Cat 5e/6 cable, thus eliminating the need to
install multiple cables for more efficient cabling in the analog CCTV security and
surveillance environment. Furthermore the product converts 24VAC to 12VDC @
400mA to allow 12VDC cameras to be remotely powered from a central 24VAC
CCTV power supply. The CCTV Power-Thru Converter Balun works in
conjunction with MuxLab’s CCTV Power-Thru Balun (500024), Passive CCTV
Power Integrator Hub (500136), Passive CCTV Hub (500130) and LongReach II
Active Balun (500124) and Hub (500126, 500127) for a complete cabling solution.

Installation

Pre-Installation Checklist:

Note: For regulatory reasons, use of a Class II power supply is
recommended and may be required with the use of this product in some
regions.

1. The CCTV Power-Thru Converter Balun (500024-CNV) is designed to be

installed at the camera side.

2. Ensure the CCTV equipment and remote power supply is turned off.

3. One (1) twisted pair is required for the camera video signal. Three (3) twisted

pairs are required for remote power.

4. Verify that the cable length is within MuxLab specifications. The

maximum distance for 24VAC and remote power is 795 ft. (242m) at the
maximum allowable power consumption of 400mA.

5. Identify the pin configuration of the balun by checking the product label or the

specification section of this installation guide.

© MuxLab Inc.

Installation:

Symptom

Probable Causes

Possible Solutions

Poor picture quality,
distortion, interference

1. EMI interference.

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

2. Wires reversed on signal

pair on one side

Make sure that the wires on the
signal pair are not reversed on one
side.

3. Split pair

Check if the UTP pairs are split and
correct. Each signal pair must be
twisted.

No video image

1. Power-off.

Check power supplies of CCTV
equipment. Check power supply
fuse.

2. Wrong pin configuration

Check pin configuration and verify
straight-through wiring.

3. Defective CCTV Balun

Change CCTV baluns for another
pair.

Picture faded or weak

1. Exceeded distance

specifications

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

2. Lower grade UTP cable is

introducing high signal
losses.

Use signal repeater for extended
distance or replace cable by higher
grade.

No power or
intermittent power
at camera

1. Wrong pin config.

Check wiring

2. Distance exceeded

Verify distance specifications for
remote power. Move power closer
to camera.

1. At the camera side, connect the coaxial cable lead of the 500024-CNV into the

BNC-F connector of the CCTV camera.

2. At the camera side, connect the balun’s red and black wires to the 12VDC

power input terminals of the camera.

3. Connect a 4-pair Cat5e/6 cable to the balun. The cable must be terminated

straight-through with an RJ45 modular plug according to either the EIA 568A
or 568B wiring standard. Cross-connection hardware such as wall outlets and
patch panels may be used as required.

4. Note: The CCTV Power-Thru Converter Balun is reverse polarity

sensitive. When connecting the baluns, ensure that “Ring [R]” is connected

to “Ring [R]” and “Tip [T]” is connected to “Tip [T]”. Verify that there

are no split pairs or crossed wires.

5. At the head end (DVR or IP encoder), repeat steps 1 to 3 for the receiver side

balun or hub (i.e. 500024, 500130, 500124, 500126, 500127, 500136).

6. Power-on the CCTV equipment and central CCTV power supply. Verify

image quality.

7. The following diagrams show typical configurations using the 500024-CNV.

Troubleshooting

The following table describes some of the symptoms, probable causes and
possible solutions regarding the CCTV Power-Thru Converter Balun. If you
still cannot diagnose the problem, please call MuxLab Technical Support at
514-905-0588.

© MuxLab Inc.