Extron electronic SWP123 manual Front Panel Operation, Miscellaneous controls and features

Miscellaneous controls and features

9Microphone Talk Over button — This button turns on the microphone mixer to provide microphone talk-over for the Master Audio. The LED, when lit, indicates that the microphone mixer is turned on.

10Mic Level — Use the increment () and decrement () buttons to adjust the volume of the microphone.

11Mute — This button mutes the Master Audio output. The LED, when lit, indicates that the Master Audio output is muted.

12AV Volume — Use the increment () and decrement () buttons to adjust the volume of the Master Audio output.

13IR Window — Receives IR commands from the optional CTL 120-3 IR remote control.

Front Panel Operation

The functions of the front panel controls are described in the following sections.

Selecting A/V inputs to output

There are four input selection groups on the front panel: VGA/Audio, S-video/ Audio, Composite Video/Audio, and Master Audio. These groups correspond to the four independent switchers (three A/V and one audio only) in the SWP 123 Presentation Switcher.

Use the four input select buttons in each A/V group to route a video signal to the output for each group. When you press an input select button, the green LED indicator on top of the button lights, indicating which input is linked to the output for that group. To select a different input for that group, press a different button in the same group.

The outputs of all three A/V groups are always active within the group. The audio output from any group (or the microphone) may be routed to the Master Audio switcher for output. See the Master Audio functions section (below) for more details.

There are two switcher modes available for the SWP123: Separate switcher mode and Single switcher mode. The default is Separate switcher mode.

Separate switcher mode

In this mode, all three A/V groups operate independently from each other, and all three outputs (audio and video) are active.

Single switcher mode

This mode can be turned on/off only via RS-232. In this mode, all three A/V groups operate as a combined 12 x 1 switcher (12 inputs and one output). Only the output (audio and video) of the selected A/V group is active, while the remaining two unselected A/V group outputs are muted. This design feature enables the autoswitching feature of the output device (scaler, etc.).

Blanking the output from a group

Each A/V group has a blank button. To blank the video output for a group, press the Blank button for the group. The LED above the button lights, indicating that blanking is active.

SWP123 Presentation Switchers • Operation 3-3