Installation and Operation, cont’d

8.Set the rear panel peaking jumpers, and cable and test the buffer before fastening the buffer into the wall box. The jumpers and cables will be inaccessible after installation. See “Rear panel/circuit board features and jumpers” and “Cabling” in this chapter for details.

Mounting the RGB 340

You may need to install the cables into the wall, furniture, or conduits before installing the buffer. A drawing showing dimensions is provided in appendix B.

1.Hold the buffer against the underside of the desk or other furniture. Mark the location of holes for screws on the furniture.

2.From the side of the furniture where the interface will be located, drill 1/4” (6.5 mm) deep, 3/32” (2.4 mm) diameter pilot holes in the furniture at the marked screw locations.

3.Insert and loosely fasten four wood screws into the pilot holes, leaving only 1/4” of the screw protruding.

4.Set the internal peaking jumpers and attach the cables to the rear panel. The jumpers and cables will be inaccessible after installation. See “Rear panel/circuit board features and jumpers” and “Cabling” in this chapter for details.

5.Align the screws with the slots in the buffer’s mounting ears, and place the buffer against the surface (with the screws through the mounting ear slots).

Mounting the RGB 340

6.Slide the buffer slightly forward or backward, then tighten all four screws to fasten it into place.

Front and rear panel features

Front panel features and operation

1			H. SHIFT		1
			V. SHIFT		7
			VIDEO LEVEL		7
			VIDEO LEVEL
2		INPUT	AUDIO LEVEL		2			INPUT
2		INPUT			2			INPUT		ACTIVE	8
										ACTIVE	8
3				SHOW ME/	3
3	HIGH Z	75 Ohm	ADJUST	SELECT	3		HIGH Z	75 Ohm
4		AUDIO			4			AUDIO
	Extron			RGB 324			Extron			RGB 326
			5	6
							INPUTS		SHOW ME/	H SHIFT
									SELECT	H SHIFT
						AUDIO	ANALOG		SELECT
						AUDIO	ANALOG	HI-Z	75	V SHIFT
										VIDEO LEVEL
										AUDIO LEVEL	ADJUST
										RGB 340
					1	4	2	3	6	7	5

1Power LED — The power LED:

•Lights steadily to indicate that the buffer is receiving power.

•Blinks when the RGB 320 is busy, indicating that the Show Me/select button must be pressed a second time to send the request to display that buffer’s input (RGB 324/340).

2Input 9-pin D male connector — This port accepts analog RGBHV, RGBS, RGsB, and RsGsBs computer video signals via a monitor breakout cable (MBC) or laptop breakout cable (LBC).

3High Z/75 ohm switch — Select the video termination impedance that provides the best picture.

•Set this switch to High Z (high impedance) if a local monitor is connected, a laptop breakout cable is used, or if the picture is too dark (double-terminated).

•Set this switch to 75 ohms if no local monitor is connected or if the picture is too bright or blooming (unterminated).

4Audio input jack — This 3.5 mm female stereo jack is for left

Tip (L)	Sleeve (GND)	and right unbalanced stereo audio
		input. Wire the connector as
		shown at left.
	Ring (R)
	Tip (L)
		Sleeve (GND)

2-4

RGB 324/326/340 • Installation and Operation

2-5

RGB 324, RGB 326, RGB 340 specifications

Extron Electronics is a renowned manufacturer known for its extensive range of innovative products in the realm of audiovisual integration. Among their impressive lineup are the RGB 326, RGB 340, and RGB 324 models, which stand out due to their exceptional features and cutting-edge technologies tailored for high-performance video applications.

The Extron RGB 326 is a versatile, high-resolution RGBHV and video line amplifier designed to enhance the quality of analog video signals. One of its main features is the capability to support resolutions up to 1920x1200, ensuring compatibility with a wide range of display devices. It incorporates advanced circuitry that optimizes signal quality, reducing distortion and maintaining clarity over extended distances. This model also offers multiple outputs, allowing the simultaneous connection of multiple devices, which is ideal for complex installations.

The RGB 340 takes the functionality of video amplification a notch higher with its integrated digital processing capabilities. It provides features like automatic signal detection and adaptive equalization, which ensures optimal signal integrity, regardless of the input source or distance involved. The RGB 340 can also support a variety of input formats, including RGBHV, component video, and composite video, making it an excellent choice for diverse audiovisual setups. Additionally, built-in status LEDs allow users to monitor operational signals and quickly identify any potential issues.

On the other hand, the Extron RGB 324 is a compact yet powerful solution designed specifically for applications requiring a straightforward line amplifier with fewer connections. It boasts a user-friendly interface and a low-profile design, which makes it suitable for installations where space is limited. Like its counterparts, the RGB 324 also maintains high signal fidelity and can handle resolutions up to 1920x1200.

Another significant characteristic shared among these models is the robust build quality that Extron is known for. Designed for durability and reliability, they come with enhanced thermal management, ensuring long-term performance even in demanding environments. Furthermore, all models feature Extron's patented technology for optimal video performance, resulting in high-quality output with minimal signal degradation.

In summary, the Extron RGB 326, RGB 340, and RGB 324 exemplify the brand's commitment to delivering top-tier solutions for video signal management. Their innovative technologies and features make them indispensable tools for audiovisual integrators looking to achieve pristine image quality and reliability in their installations.