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73rci Front PAnel FeAtures
RCI Rear Panel Features
All RCI rear‑panel features and functions are described in this section.
AC Power
Pro64 modules use switching power supplies that can operate at 100‑240V
and from 50‑60Hz, meaning that they can be used with most of the world’s
AC power systems by simply changing the line cord. The RCI is equipped
with a standard grounded IEC power inlet (with fuse), which can accept the
interchangeable IEC power cord.
Fuse
The fuse holder is spring‑loaded and has space for two fuses, one main and
one spare (optional). Press the fuse holder cover to access the fuse. When
checking or replacing a fuse, always power off the Pro64 unit and remove the
line cord from the AC power source.
Always replace the fuse with one of the same rating as that being changed.
Backup DC Power
For applications where a backup power source is required, the RCI is
equipped with a backup DC power inlet using a locking 4‑pin XLR jack. A DC
power supply capable of outputting 24VDC ±5% at 0.75 amp is required. In
the locking XLR plug, connect pin 1 to ground and pin 4 to the 24VDC supply.
Nothing should be connected to pins 2 and 3.
PA D
BACKUP POWER
PIN = GND
VDC
AC POWER
FUSE: VAC-FAL
Remote Control Interface
RCI
B A
+dBu
PIN
The RCI can be powered via its internal power supply or an optional external
24 volt supply.
Both internal AC and external DC power sources can be connected
simultaneously. The AC Power switch only controls the AC inlet.