Owner's Manual

Controls and Connectors
MTX3 Owner’s Manual
11
 Switches 1–2 (UNIT ID)
These switches specify the upper digit and the above-
mentioned [UNIT ID] rotary switch specifies the lower
digit, together allowing you to specify one of 63 different
UNIT ID numbers in a range from 01 to 3F.

Switches 3–4
Not used. Turn it off (up) at any time.

Switch 5 (PANEL LOCK)
This switch locks the front panel controls. Use this if you
want to prevent accidental operation from the front panel.

Switch 6 (IP SETTING)
This switch specifies how the MTX3’s IP address will be
specified.
 Switches 7–8 (START UP MODE)
These specify whether the MTX3 will be initialized when
it is powered-on.
o [YDIF] connectors
These connectors are used to make a ring connection with
the devices that comprise the MTX/MRX system, allowing
digital audio signals to be transmitted and received. Use
CAT5e or better Ethernet STP cables (shielded twisted pair
cables) that have all eight pins connected in a straight con-
nection. The maximum cable length between devices is 30
meters, and you can connect up to eight devices that are
equipped with the [YDIF] connectors. For details, refer to
the MTX-MRX Editor User Guide.
!0 [ST IN] connectors
These are unbalanced RCA phono jacks for inputting analog
audio signals from a CD player or other device.
!1 [INPUT]/[OUTPUT] connectors
These are balanced input/output connectors for analog audio
input and output. Connect line level devices or microphones
to the [INPUT] connectors, and line level devices to the
[OUTPUT] connectors. The [INPUT] connectors provide
head amps, and can also provide +48V phantom power.
MTX-MRX Editor is used to specify the gain of the internal
head amps and to turn the phantom power on/off.
Use the included Euroblock plugs to make connections (see
“Euroblock plug connection” on page 12 for details).
!2 Cooling vent
The MTX3 contains a cooling fan. The cooling air is
exhausted here, so please be careful not to block this vent.
Switch position Option Functions
UNIT ID is
“0x”
The [UNIT ID] rotary switch
will have a setting range of
01 through 0F.
UNIT ID is
“1x”
The [UNIT ID] rotary switch
will have a setting range of
10 through 1F.
UNIT ID is
“2x”
The [UNIT ID] rotary switch
will have a setting range of
20 through 2F.
UNIT ID is
“3x”
The [UNIT ID] rotary switch
will have a setting range of
30 through 3F.
NOTE
Do not use a UNIT ID of “00” (DIP switches 1 and 2 OFF
and the rotary switch at 0).
Switch position Option Functions
UNLOCK
The front panel controls will
be available for operation.
LOCK
The front panel controls will
be locked, and will be inop-
erable. The device can be
operated from a computer
or an external controller.
Switch position Option Functions
UNIT ID
The IP address will be
specified according to the
UNIT ID, and will be
192.168.0.(UNIT ID).
PC
The IP address will be
determined by the settings
of MTX-MRX Editor. (See
“MTX-MRX Editor User
Guide.”)
NOTE
You must set this to the “UNIT ID” position the first time
you connect this device to a computer after purchase. If
you subsequently want to specify the IP address instead
of using the UNIT ID, specify the IP address from MTX-
MRX Editor and then switch this setting to the “PC” posi-
tion.
Switch position Option Functions
RESUME
This is the normal operating
mode. When you power-on
the MTX3, it will start up in
the same state in which it
was when the power was
turned off.
INIT.
(INITIALIZE)
Initializes the MTX3, return-
ing it to the factory-set state
(page 19).
NOTE
Adjusting the internal head amp gain between +17 dB and
+18 dB will internally turn PAD on/off. Noise may occur if
there is an impedance difference between the Hot and Cold
of a device connected to the [INPUT] connectors while
phantom power is being used.
Cooling vent