Extron Electronics IN31608 - Manual (Page 5)

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IN31608 OPERATION MANUAL - REV 1.6 1/4/01

2001 - INLINE, Inc.
Switching - Connecting Inputs and Outputs (Front Panel)
DIRECT MODE
Press the button of the input you desire and the signal will automatically be sent to the appropriate output(s).
Video, sync and audio are always routed together as a group (see DIRECT MODE SETUP on page 7 for more
details.) That input LED will light as well as any of the selected output LEDs. To disconnect all outputs press
the Blank Button.
MATRIX MODE
To make a new connection between an input and an output, the order of button presses is always output then
input as described below.
First press the button of the output you would like to change. The selected output LED will light (only one
output can be selected at a time). The LED of the input currently patched to that output will also light. To
select a different input, press the button of the input you desire. To blank the output, press the Blank Button.
Once an output is selected, the inputs may be changed indefinitely.
GROUP CONFIGURATION (MATRIX MODE ONLY)
In Matrix Mode, it is possible to switch video, sync and audio together or separately using the front panel
Switching Mode Button or the serial commands.
Board Group Selection from the Front Panel - Switching multiple board groups is possible through the front
panel. To select the switching mode depress the Mode Button. The switching mode sequences between three
possible combinations in the following order:
1) VIDEO / AUDIO / SYNC (default) - video and audio LEDs on
2) VIDEO / SYNC ONLY
- only video LED on
3) AUDIO ONLY - only audio LED on
Board Group Selection Using Serial Commands - It is also possible to switch audio, video, and sync
together, separately or in almost any combination using the serial [CNF…] command. The [CNF…] command
defines three groups. Each group is treated as an independent switcher within the unit, and can be switched
independently. The factory default is to have all boards assigned to Group 1 so that they switch together.
One of the most common uses of assigning multiple groups is to switch audio independent of video. Assigning
the RGB and sync boards to Group 1, and the audio to Group 2 will accomplish this. Doing so allows Group 1
and Group 2 can be switched independently.
The IN31608 allows breakaway audio, video and sync in any combination through serial commands. However,
there are only video and audio LEDs on the front panel to make this distinction. When sync is switched
separately from video and audio, the unit automatically disables the front panel input and output switches and
flashes the video and audio LEDs. The switcher is designed this way to protect the user from setting a
breakaway sync mode with a serial command and subsequently switching the front panel manually without
realizing that sync is being switched separately from audio and video.