Extron electronic 400 user manual Pre-installation testing/troubleshooting

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Installation and Operation, cont’d

output captive screw connector. See “Connecting shields” earlier in this chapter for details.

Connecting audio cables — RGB 406, RGB 408

Each RGB 406 or RGB 408 accepts an unbalanced audio

Using installation cable

Extron’s Install Plenum bulk cable (shown here) is ideal for mountable interfaces such as the RGB 400 Series models.

Six Mini, High-resolution

Coaxial ConductorsDouble Shielded

input from a front panel 3.5 mm PC-type stereo connector, and it outputs two channels of balanced audio on a 3.5 mm, 5-pole captive screw connector on the rear of the circuit

board. Follow the steps listed for the RGB 404 for inserting wires into captive screw

connectors. Use the label on the rear of the faceplate (excerpted here) as a wiring guide.

Plenum Jacket, Double Shielded Foil and Copper Strand

Foil and Copper Strand

Center Conductor (Stranded)

Polyethylene Foam

Sheath

Three 20-gauge Wires

Four Sets of Twisted Pair (Stranded), Wire Braid Shield

Connecting input cables and video output cables

With appropriate cables, connect the computer and audio device(s) to the interface via the front panel input

17-Conductor Install Plenum Cable

Below is an example of how the cable can be used.

connectors. Connect all the devices for pass-through input (network, composite video, S-video and/or other inputs) via front panel or front adapter plate connectors.

Determine what computer-video format the display device requires: separate horizontal and vertical sync (RGBHV), composite sync (RGBS), or sync on green (RGsB or SOG). No matter what format the computer outputs to the interface, the output from the interface to the display device can be RGBHV or RGBS. If the video format input to the interface is RGsB (SOG), RGsB can be output to the display device; otherwise only RGBHV and RGBS are available as output options.

White Mini-Coax

Shield to Green

Yellow Mini-Coax

Shield to Black

Yellow

Red Green

Black

Red & Black

Twisted Pair

White & Black

Twisted Pair

Black Mini-Coax

Blue Mini-Coax

Green Mini-Coax

Red Mini-Coax

20 Gauge Violet

20 Gauge Gray

Connect the display device to the interface using coaxial cables. Attach the cable’s BNC connectors to the appropriate rear panel BNC connectors on the interface based on the video format required by the display device.

Attaching power cables

Each RGB 400 Series interface requires an external voltage source of 12 to 24 volts AC or DC (250 mA maximum, 5 W). The interfaces are supplied with a power cord of twisted- pair wire soldered to the circuit board.

1.Splice these wires to the cord of a user-supplied power source. Polarity is not important, even if the power source supplies DC voltage. Extron offers an optional external power supply. See Appendix D for the part number.

2.Solder and insulate the connections.

RGB 404 Rear

Using installation cable with an RGB 404

Pre-installation testing/troubleshooting

Before installing the interface into the wall or furniture, test the system to make sure that the connections and interface settings are correct.

Turn on the input device(s) (computer, audio device) and output device(s) (projector and/or monitor, speakers). The image should now appear on the screen, and sound should be audible.

If the image does not appear or there is no sound

1.Ensure that all devices are plugged in.

2.Make sure that each device is receiving power. The interface’s Auto power indicator LED will light if the interface is receiving power and an active sync signal.

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