Toa VX-2000SF - External Attenuator Control Terminal Operation; Operation

Chapter 3: SYSTEM OPERATION OUTLINE
5. EXTERNAL ATTENUATOR CONTROL TERMINAL OPERATION
3-7
5. EXTERNAL ATTENUATOR CONTROL TERMINAL OPERATION
Both the VX-200SZ and VX-200SP are equipped with control terminals that enable them to bypass external
attenuators. Depending on the system operation status, the External Attenuator Control terminals work in either
the "Valid" (N2 - C terminals closed) or "Bypassed" (N1 - C terminals closed) mode.
5.1. Operation
The External Attenuator Control terminals are switched to either the "Valid" position or "Bypassed" position
depending on whether broadcasting is being made or broadcast modes.
When paging from a Remote Microphone or EV message broadcast is made, the attenuator control terminals
are switched to the "Valid" position, permitting the broadcast to go through at full (attenuator-bypassed) volume.
STANDBY
PA BUS
VX-200SZ
PA
LINK
RUN
SET
H
SP
OUT
CH
PA
IN
CN1 N2C
ATT
CTRL
N1 (Normally open, external attenuator "Bypassed" position)
C
N2 (Normally closed, external attenuator "Valid" position)
[VX-200SZ]
Notes
• BGMreferstoinputsourcesdesignatedbythePCsoftwareas"UsedasBGM."
• Theattenuatorcontrolterminalsaresetforthe"Bypass"position(N1-Cterminalsclosed)whiletheCPUis
off.
• Forconnectionstoexternalattenuators,referto
p. 9-7.
Broadcast Broadcast Mode External Attenuator Control Terminals
ON
BGM broadcast Valid (N2 - C terminals closed)
Paging broadcast
EV broadcast
Emergency broadcast
Bypassed (N1 - C terminals closed)
OFF Bypassed (N1 - C terminals closed)