Extron electronic MAV 48 ユーザーズマニュアル

If desired, mount the switcher in a rack with the
supplied rack ears or mount the switcher under a
desk using an Extron MBU 149 1U Enclosure
Under-desk mount kit, part #70-222-01.

As applicable to your switcher, connect:

Up to 4 or 8 S-video inputs to the
input connectors.

Up to 4 or 8 composite video inputs
to the input connectors.

Up to 4 or 8 unbalanced stereo audio
inputs to the input RCA connectors.

Up to 4 or 8 balanced or
unbalanced stereo audio inputs to
the input captive screw connectors.

As applicable to your switcher, connect:

Up to 4 or 8 S-video or composite
video devices to the output connectors.

Up to 4 or 8 unbalanced stereo audio
devices to the output RCA connectors.

Up to 4 or 8 balanced or unbalanced
stereo audio devices to the output
captive screw connectors.

If desired, connect a control system or a computer
to the RS-232 port.  See the table below

If desired, feed a black burst

(genlock) signal to
the external sync
connectors.

 or —

 or —

 An input-to-output connection

 An input tied to two or more outputs

 One or more ties or sets of ties

 The currently active

 (also called configuration 0)

 A configuration that has been stored.  One

 can be assigned to each input and output

button.  16 presets are available via RS-232
control.  When a preset is retrieved from memory,
it becomes the current configuration.

 Indicates power is applied.

This LED also has two secondary functions:

 — The Power/

data/audio LED blinks off and on to indicate
that an IR signal has been received.

 — In Audio Setup mode,

the Power/data/audio LED lights when the
selected input audio signal is at or above the
reference level and is unlit when the signal is
below the reference level.  Adjust the gain until
the LED blinks frequently.  If the LED is almost
always lit, blinking off only occasionally, the
level is too high.  If the LED is almost always
off, blinking on (lit) only occasionally, the level
is too low.

 selects video

and audio, video, or audio for input selection.

indicate whether video and audio, video, or
audio is selected.  The Audio LED blinks to
indicate audio is broken away.

select an input to tie to an output.

identify the input selected for the tie.

select output(s) to tie to an input.

identify output(s) selected for the tie.

 saves configuration changes.

selects Save Preset mode or Recall

Preset mode, in which a configuration can be
saved as a preset or recalled.

 enable you to view

and/or change the current audio level setting
for each input.  Audio Setup is a secondary input
function of the I/O button.

 or —

1

5

6

9

1

—

N/C

2

TX

Transmit data

3

RX

Receive data

4

—

N/C

5

Gnd

Signal ground

6

—

N/C
N/C
N/C

7

—

8

—
—

Hardwired IR

9

Tip

See caution

Sleeve

Tip

See caution

Tip

Ring

Sleeve (s)

Tip

Ring