Installation and Operation, cont’d

If shielded twisted-pairwires are used for audio output for the RGB 404, RGB 406 or RGB 408, the shields should be connected to either pin 3 (RGB 406/408) or pins 3 and 8 (RGB 404) of the audio output captive screw connector. Twist the wires from the braided shield together to form a

signal. For example, the input signals from the left side of channel one (CH1L) are output as CH1L+ and CH1L-. The following illustration shows the audio inputs and outputs and how to wire the audio connectors.

multi-strand wire, then insert it into the receptacle side of the captive screw connector. See the “Wiring audio output captive screw connectors” illustration on the next page.

Twisted-pair shields are not used for most other RGB 400 Series applications, even when twisted-pair wires are used. For those other applications, twist the shields together, and fold them back under the wall box cable clamp or attach them to the grounded wall box with a screw.

To prevent short circuits, unused shielded twisted-pair wires and exposed cable shields (braided or foil) must be insulated with

 

L

 

 

Channel 1

GND

 

R

 

 

 

 

Channel 2

L

 

 

 

GND

R

Female

Captive Screw

Connector

L

Channel 1

GND

from Audio L, R

RCA

 

R

Connectors

L

Channel 2

GND

from PC

3.5mm

 

R

Connector

Male

Circuit Board

Base

 

electrical tape or heat shrink, and secured.

Connect coaxial cables’ shields to a ground through the individual connectors (BNC, S-video or RCA).

Connecting audio cables — RGB 404

The RGB 404 creates two 2-channel, balanced audio outputs from two unbalanced inputs.

Audio channel one (CH1) consists of unbalanced input on two RCA input connectors (one each for left and

 

right input), and balanced output

 

on pins 1 – 5 of the 10-pole audio

Tip Sleeve ( )

captive screw connector on the rear

 

of the circuit board. Wire the RCA

input plugs as shown at left.

Audio channel two (CH2) consists of unbalanced left and right input from the single PC-type 3.5 mm audio plug, and balanced output on pins 6 – 10 of the 10- pole captive screw connector on the rear of the circuit board. Wire the stereo PC input plug as shown here:

Tip (+)

Sleeve (GND)

Ring (R, -)

Tip (L, +)

Sleeve (GND)

The audio signals are converted from unbalanced to balanced signals as they pass through the RGB 404. As a result, two output signals are produced for each input

Wiring RGB 404 audio connectors

To wire the audio output captive screw connector, follow these steps:

1.Prepare the wires for insertion into the connector by trimming off 3/16 inch of insulation.

2.Following the wiring diagram found on the label on the back of the faceplate or in this manual, insert the wires one at a time into the connector.

3.Tighten the wire clamp in the connector by turning the appropriate screw clockwise. Do not overtighten the screw. Avoid touching circuit board components with the ends of the wires. See the illustration below.

Ground/Shield

 

Ground/Shield

Base

 

Circuit Board

Circuit Board

RGB 404

RGB 406 and RGB 408

Wiring audio output captive screw connectors

4.The cable shields should be connected to either pins 3 and 8 (RGB 404) or pin 3 (RGB 406/408) of the audio

2-18 RGB 400 Series Installation and Operation

RGB 400 Series Installation and Operation 2-19

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Image 14
Extron electronic RGB 404, RGB 402, RGB 406 Electrical tape or heat shrink, and secured, Connecting audio cables RGB

RGB 408, RGB 404, RGB 402, RGB 400 Series, RGB 406 specifications

The Extron Electronic RGB 400 Series is a powerful line of RGBHV distribution amplifiers designed to meet the demands of professional audio-visual installations. This series encompasses several models, including the RGB 406, RGB 402, RGB 404, and RGB 408, each tailored to specific applications while maintaining the high-quality performance expected from Extron products.

One of the standout features of the RGB 400 Series is its exceptional video quality. These distribution amplifiers support resolutions up to 1600x1200 and 1080p, ensuring that users can deliver crystal-clear images without degradation over extended distances. The units provide precise signal amplification and distribution, making them ideal for large venues such as auditoriums, conference rooms, and classrooms.

The RGB 406 model, for instance, is designed to handle up to six inputs and provides a robust output for distribution, making it suitable for installations that require multiple sources. The RGB 402, with its unique two input capacity, offers a more compact solution while still delivering outstanding performance. For those needing four inputs, the RGB 404 serves as an efficient choice, ensuring that users have seamless switching capabilities.

Meanwhile, the RGB 408 supports an extensive eight input capacity, catering to complex AV environments where multiple source devices are in use. The series also incorporates features such as automatic gain control and DC coupling, which enhance the overall signal integrity and minimize distortion.

Each model comes equipped with Extron's advanced technologies, including signal isolation and ground loop prevention, reducing the chances of interference and ensuring a reliable signal path. With user-friendly design considerations, the RGB 400 Series incorporates easy-to-use controls and LED indicators for simple operation and monitoring.

Additionally, the series supports a variety of connector types, providing installation versatility and compatibility with various equipment. The inclusion of robust metal enclosures ensures durability, while also allowing for rack mounting to maximize space efficiency in equipment rooms.

In conclusion, the Extron Electronic RGB 400 Series, featuring the RGB 406, RGB 402, RGB 404, and RGB 408 models, is an excellent choice for professionals seeking high-performance RGBHV distribution amplifiers. With their high-quality video output, versatile input options, advanced technologies, and reliability, these units cater to a broad range of AV installation needs, making them a staple in the professional AV industry.