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Phantom Power Supply- RB-MSP6 18
Connections and Operation
Front Panel Controls and Indicators
Fig 18-3: RB-MSP6 Front Panel LED Indicators
The RB-MSP6 front panel LEDs (labelled 1 and 2) show the presence of
power at the input of each IEC AC supply. Each LED illuminates red if power
is present at the input. If a LED extinguishes, it indicates a problem with the
corresponding supply. This could be due to one or more of the following:
• The AC mains input is out of range or missing.
• The mains fuse is blown or missing.
• The internal AC/DC 48V supply is faulty.
The current status of the two AC/DC 48V power supplies is also reflected at
the remote output port on the rear panel, see below for details.
Rear Panel Connections
AC Mains inputs
The two mains inputs should be connected to 90V – 264V, 47 – 63Hz AC
mains supplies, and protected with a 1A anti-surge fuse.
+48V Phantom Power Outputs
The DC outputs each provide up to 50mA of phantom power (48V) to an
externally connected RB-MS4X3. The connectors are locking to prevent
accidental unplugging, and the positive voltage is on the 2.5mm centre pin.
Alarm Outputs (ALARMS)
The 9 way D-Type socket contains alarm outputs that monitor the status of
the two 48V power supplies. A changeover relay provides a normally open
(NO), normally closed (NC) and a common connection for each supply. The
pinout of the D-Type connector is shown below.
Note:
“Normally closed” refers to the pin that is connected to the common
when the corresponding supply is working normally.
Fig 18-4: RB-MSP6 Rear Panel Connections
Содержание Redbox RB-AES4B3
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