Enabling Auto-input Switching

Remote/Auto-SW

Tx Rx _ A S

SW DVI Plus Switcher Rear Panel RS-232 Port

NOTE: If you use cable that has a drain wire, tie the drain wire to ground at both ends.

Ground (_)

Receive (Rx) Transmit (Tx)

Transmit (Tx) Receive (Rx)

Computer or

Control System

RS-232 Port

Figure 12. Remote/Auto-SW Connector Pin Assignments for RS-232

You can set up the SW DVI Plus to automatically select the active connected input based on detection of a video sync signal. If two or more inputs are active, the input with the highest number is selected (for example, input 8 on an SW8 DVI Plus switcher). When auto-input switching is in effect, the green Auto Switch LED on the front panel lights and the front panel input selection buttons are disabled.

NOTE: Audio and video cannot be switched separately when auto-input switching is enabled.

SW2/SW4 DVI Plus (Non-audio) Models

On the non-audio SW2 and SW4 DVI Plus, auto-input switching is enabled or disabled via the following SIS commands (see the “Remote Configuration and Control” section, beginning on page 18, for information on using SIS commands).

•1# selects normal switch mode.

•2# selects auto-input switch mode.

All Other Models

To enable auto-input switching on the SW2, SW4, SW6, and SW8 DVI A Plus models and on the SW6 and SW8 DVI Plus non-audio models:

1.Cut a small piece of wire to use as a jumper.

2.Insert the ends of the wire into slots 4 and 5 of the provided 5-pole captive screw plug, connecting pins 4 and 5 together.

3.Use a small screwdriver to tighten the two screws of the plug above pin slots 4 and 5, so that the jumper wire ends remain securely in place (see

the illustration at right).

4. Insert the plug into the 5-pole Auto-SW captive screw connector on the switcher rear panel.

Figure 13 on the next page shows an SW8 DVI A Plus with a jumper connecting pins 4 and 5 to enable auto-input switching.

SW DVI Plus Series • Installation 10

68-1316-02 specifications

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