Left Side Panel - Fostex FM-4 Owner's Manual

1 . [INPUT] connector (1 through 4)
Each connector is used to connect an external au-
dio device or microphone .
Connector: XLR-3-31 type
2 . [AUX IN] connector
Used to connect a mixer or audio device .
Not only you can monitor the input signal of this
connector, you can send the signal to the stereo
buss to mix with the main input signals (selectable
with the [TO ST BUSS] switch) .
Connector: XLR-5-51 type
3 . [TO ST BUSS] switch (ON / OFF)
This switch selects whether or not the input signal
from the [AUX IN] jack is sent to the stereo buss .
To send the [AUX IN] signal to the stereo buss, set
the switch to ON . When the switch is set to OFF,
the [AUX IN] signal is not sent to the stereo buss .
Regardless of the switch setting, you can monitor
the [AUX IN] signal via headphones .
4 . Input select switches (LINE / MIC)
Each switch should be set appropriately according
to the input signal source of the corresponding [IN-
PUT] connector .
You should set the switch to LINE when a line-
level source is connected to the [INPUT] connec-
tor . When it is set to LINE, the microphone power
LINE
supply is automatically turned off regardless of
its setting .
You should set the switch to MIC when a micro-
phone is connected to the [INPUT] connector .
MIC
You can supply the microphone power when
connecting a condenser microphone (see "Mi-
crophone power supply switch" below) .

Left side panel

GND
1
HOT
2
3
COLD
1 GND
2 Lch HOT
3
Lch COLD
4
Rch HOT
5 Rch COLD
5 . Microphone power supply switches
(T12 / DM /P48)
Each switch sets whether or not supplying the mi-
crophone power .
T12 or AB power supply mode . A 12 V power is
supplied to the hot terminal of the [INPUT] con-
nector .
T12
<Memo>: If you do not need T12 power
supply, you can disable the power supply
via the input status display (see page 19 for
details) .
No microphone power is supplied . When you
DM
connect a dynamic microphone, set the switch
to DM .
48-volt phantom power supply mode .
P48
A 48 V power is supplied to the hot and cold
terminals of the [INPUT] connector .
6 . [DC IN 10-24V] connector
Used to connect the supplied AC adaptor (or an
external battery) .
Connector: XLR-4-32 type (male)
7 . [DC OUT 7 .2-24V] connector
This connector outputs power at DC 7 .2 to 24 V / 0 .5 A
for a wireless receiver, etc .
It outputs power when the unit is powered on .
Connector: Hirose 4-pin HR10A-7R-4S
Applicable plug: HR10A-7R-4P
14
1 GND
NC
2
3
NC
4
DC 10 V to 24 V
GND
1
2 NC
3
NC
4 DC 7 .2 V to 24 V