Extron electronic Extron Electronics Switch RGB 326 User Manual download pdf (Page 8)

RGB 324/326/340 • Installation and Operation

Installation and Operation, cont’d

2-52-4

Extron

324

INPUT

HIGH Z

75 Ohm

H. SHIFT

V. SHIFT

VIDEO LEVEL

AUDIO LEVEL

ADJUST

SHOW ME/

SELECT

AUDIO

5 6

Extron

326

INPUT

HIGH Z

75 Ohm

ACTIVE

AUDIO

ANALOGAUDIO

H SHIFT

SHOW ME/

SELECT

Z75

V SHIFT

VIDEO LEVEL

ADJUST

RGB 340

AUDIO LEVEL

INPUTS

1 24 3 6 57

Tip (L) Sleeve (GND)

Tip (L)

Ring (R)

Sleeve (GND)

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

Power 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).

Input 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).

High 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).

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

and right unbalanced stereo audio

input. Wire the connector as

shown at left.

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Extron electronic Extron Electronics Switch RGB 326 User Manual Page 8

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