Toa VX-2000SF - Cpu Switch

Chapter 3: SYSTEM OPERATION OUTLINE
6. CPU SWITCH
3-9
6. CPU SWITCH
The VX-2000 system features a fail safe-function which enables all-zone broadcasts even if the system's CPU
fails. If the CPU cannot correctly control system performance due to its failure, all-zone announcements can
be made from the RM-200XF Remote Microphone by setting the RM-200XF's CPU switch to the OFF position.
FIREMAN'S MICROPHONE
RM-200XF
MICSPCPU
OFFON
CPU
OFF ON
[RM-200XF Top]
CPU Indicator
CPU Switch
Setting the RM-200XF's CPU switch to the OFF position
causes the CPU indicator to light red.
No control is performed by the VX-2000 System
Manager's CPU as long as the CPU switch is in the OFF
position. (This is possible only when the VX-2000's CPU
is operating.)
Operation of each system component when the CPU switch is set to OFF
[RM-200XF]
• The CPU indicators on all RM-200XF Remote
Microphones within the system light red, and all
other indicators-excluding the power indicator-
extinguish. In this event, indicators on additional
RM-210 Extension units installed in the system also
extinguish.
• AslongasatleastoneCPUswitchisturnedOFF,
announcements can be made to all zones from all
RM-200XF units in the system regardless of other's
CPU switch setting. If simultaneous broadcasts are
made from 2 or more RM-200XF units, they are
mixed together. With the CPU switch set to OFF, the
RM-200XF's talk key performs PTT (press-to-talk)
operation regardless of the PC software setting.
[RM-200X]
The failure indicator lights red, and all other
indicators-including the power indicator-extinguish.
Indicators on all added RM-210 Extension units also
extinguish.
[VX-2000]
The CPU OFF terminals on the rear panel are
closed.
Note
The VX-2000's CPU OFF terminals are not only
closed when the RM-200XF's CPU switch is set to
OFF, but also when no control is performed by the
VX-2000 System Manager's CPU.
[VX-200SZ and VX-200SP]
The external attenuator control terminals N1 and C
are shorted.
When external attenuators are connected to these
terminals, they are bypassed.
[VX-200SO]
All control output terminals are opened.
Notes
• Whenmakingall-zonebroadcastsbyturningofftheRM-200XF'sCPUswitch,standbyamplifierbroadcasting
is disabled. This means that broadcasts cannot be made to any zone currently switched over to the standby
amplifier owing to amplifier failure.
• CPUswitchON/OFF data are recordedinthe system operation log. (This is possible only when the VX-
2000's CPU is operating.)
CPU OFF function and module slots
The CPU off function is available only at the module slots 2, 4, 6 and 8. So use these slots for the input modules
connected to fireman microphones RM-200XF that shall provide the CPU off function.
The CPU off function is not available only at the module slots 1, 3, 5 and 7.
Other remote microphones can be connected to input modules in any slot.