21
3
AC IN connector
Connect the unit to an AC power source using the
supplied AC power cord.
4
POWER CONTROL CHECK-REMOTE switch
REMOTE:
Normally set this switch to this position.
The power of the SX-E120A is turned on or off
according to turning on or off the power of the SX-
M700A control unit with the POWER switch of the
unit set to ON.
CHECK:
Set this switch to this position when the unit
is independently checked for maintenance and so
on by using the power of the expansion unit.
5
CONTROL UNIT connector (20-pin multi-
connector)
Used to connect to the SX-M700A control unit.
6
DELEGATE’S/CHAIRMAN’S UNIT 5/6/7/8
connectors (20-pin multi-connector)
The same signal is input/output from/to the
DELEGATE’S/CHAIRMAN’S UNIT 5/6/7/8
connectors.
Up to 15 Chairman’s units SX-C700A and Delegate’s
units SX-D700A units can be connected to each of the
four connectors.
60 chairman’s units/delegate’s units can be connected
in total.
7
U
(signal ground) terminal
Ground if necessary.
SX-M700A Control Unit
This section explains only buttons related to the SXA-
120.
1
MIC LIMIT ON/OFF button
Front panel
1
MIC (microphone) LIMIT ON/OFF button
Select the microphone control mode for the delegate’s
units.
The microphone of the chairman’s unit remains live
regardless of the setting of this button.
MIC LIMIT ON:
Press this buttons such that the
indicator lights. Setting this mode allows the
microphones of up to five delegate’s units to be live
at the same time.
MIC LIMIT OFF:
Press this button again such that
the indicator goes out. Setting this mode allows the
microphones of all delegate’s units to be live at the
same time.
