Rear Panel
7
1. ZONE SELECTOR OUTPUT Terminal block
Rated each mechanical contact switching circuit capacity is up to 48VDC/0.1A
(125VAC/0.5A, 24VDC/1A max) that recommend control to external relay circuits.
Normally open, closing between selected specific zone switch out(1~16) and
COMMON out(C) per group.
: Please used under the guarantee of rated switching capacity.
2. SIGNAL OUTPUT and MONITOR INPUT / 6p-Terminal block
Please pull out to backward of 6p-female terminal block before wiring.
Should refer to rear panel's printed subject of electric function and polarity.
The main signal flows out via the SIGNAL OUTPUT terminals that built by electronically
balanced circuits.
Should be open "C" terminal if connected with any unbalanced input.
MONITOR INPUT terminal for extra monitor input. (Electronic 10Kohm balanced input)
Typical monitor input level is -10dBm(245mV) for 1W monitoring sound power.
Please make wire bridge between terminal "G" and terminal "C" if connected
with unbalanced signal source.
3. 24V DC INPUT Terminal block
Please find enclosed extra 24VDC power supply and plug in.
This remote amplifier is prevented against over current cause the abnormal current flow
comming from switching circuits or internal circuit failure. It is automatically released
when resolving trouble.
4.
FRAME GROUND Screw
Please make proper connection with earth for safety via the frame ground screw.
Front Panel I
4
1. Main Power Switch - Power "ON" and "OFF" procedure.
Please turn on this rocker switch before operating this remote amplifier.
The "POWER"
red
color LED is indicating when enclosed external
24VDC/2A DC adapter working properly.
All electrical function will be ready within 2 second causing start initialize circuit.
Should be reset(turned off) all of "ZONE SELECTOR" switch before acting power switch
on or off to avoid any audible pop noise via connected extra PA equipment.
2. 4-dot Bargraph LED VU Meter - Displaying audio signal output level.
Each LED is tracing signal output level that comes from MIC and CHIME signal.
Please make adequate mic and chime level controlled by each potentiometers.
We recommend that bargraph LED should display range over than -10dB
for below than +6dB LED indication.
3. MONITOR / EXT switch - control switch with LED indicator
For exchanging monitor signal.
Please apply external signal(Typical=0dB)to MONITOR INPUT terminal on rear panel if
necessary to monitor via internal speaker. The external monitor input is not related main
SIGNAL OUTPUT and LED VU meter, but support hearing monitor only.
( : Please connect external series resistor into monitor input H and C, if it is necessary
to monitoring high level signal.
For example : Monitoring 100V speaker line ---> Please connect 1.2Mohm series resistor
between MONITOR INPUT terminal block and 100V line)
4. MONITOR / MONITOR volume - Control to internal speaker monitoring volume.
This remote amplifier integrated 2inch(50mm)/1W speaker with small power amplifier
for monitoring internal chime signal or external signal source.
( : Monitor sound volume is almost muted when status of MIC switch on.)
5. CHIME / START switch - Momentary push switch, trigger chime signal.
This switch controls internal integrated 4-notes chime signal generator.
Appear in complete 4-notes chime signal when it pressed one time.
+18V