Toa VP-2241, Instruction Manual

Page: 49 / 328

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
MIC SP CPU
OFF ON
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.