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Operation, cont’d
TPX 88 Matrix Switchers • Operation3-2
Operation
Front Panel Controls and Indicators
The front panel controls (figure 3-1) are grouped into four sets. The input and
output buttons are grouped on the left side of the control panel. The control
buttons are grouped in the middle of the panel. On the TPX 88 A only, the input/
output (I/O) selection button and audio controls are grouped on the right side of
the panel.
The TPX 88 is identical to the TPX 88 A, with the exception that it does not
have I/O selection or audio controls. These controls are marked with an
asterisk (*) in figure 3-1.
PRESET
ENTER
TPX 88 A
TWISTED PAIR SWITCHER
VIEW
VIDEO
AUDIO
ESC
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
I
N
P
U
T
O
U
T
P
U
T
I
N
P
U
T
O
U
T
P
U
T
I/O AUDIO
MUTE ALL
VOLUME
2 7*64
5 9*8*31 10*
Figure 3-1 — TPX 88 A front panel
Definitions
The following terms, which apply to Extron matrix switchers, are used throughout
this manual:
Tie — An input-to-output connection.
Set of ties — An input tied to two or more outputs. (An output can never be tied
to more than one input.)
Configuration — Consists of one or more ties or one or more sets of ties.
Current configuration — The configuration that is currently being used (also
called configuration 0).
Global memory preset — A configuration that has been stored. Up to sixteen
global memory presets can be stored in memory. The input buttons select
the desired preset memory location to load or retrieve a preset. When a
preset is retrieved from memory, it becomes the current configuration. One
preset can be assigned to each input button.
Input and output buttons
The large, illuminated input and output pushbuttons can be labeled with text and/
or graphics. The buttons can be set to provide amber background illumination all
the time or the background illumination can be set off. The buttons blink or are
fully illuminated (depending on the operation) when selected.
1
Input 1 through 8 buttons — The input buttons have three independent
functions: to select an input, to identify the selected inputs, and to select a
preset. A more detailed explanation of these functions is included in
Operations, beginning on page 3-5.
2
Output 1 through 8 buttons — The output buttons have four independent
functions: to select an output, to identify the selected outputs, to select a
preset, and (on the TPX 88 A) to display the user-adjustable audio level of the
selected input. A more detailed explanation of these functions is included in
Operations, beginning on page 3-5.