Extron electronic MVX 88 Series 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.

Connect up to 4 or 8 high 

resolution video inputs to 

the 15-pin HD input connectors.

Connect up to 4 or 8 unbalanced stereo 

audio inputs to the 

input 3.5 mm mini jack 

connectors.

Connect up to 4 or 8 high 

resolution video devices to the 

15-pin HD output connectors.

Connect 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.

Connect the included IEC power cord into the 

rear panel connector and plug the switcher in to a 

100 VAC to 240 VAC, 50 or 60 Hz power source.

 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 preset 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 

.

 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 > 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 on, but occasionally 

blinks off, the level is too high.  If the LED 

is almost always off, but occasionally 

blinks on 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 

 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 

<

>

decrease 

or increase the audio level for the selected 

input and indicate the decrease and increase.  

<

>

 are secondary 

 indicate the polarity of the audio 

level setting (+dB = gain, –dB = attenuation).  

.

   Connect the sleeve to ground.  

Ring

Tip

Sleeve(s)

Tip

Ring

Sleeve(s)

Tip

Tip

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