User`s guide
ARRICAM Accessories Quick Guide 01/2004, Page 22 of 24
The Accessory Power Box (APB) offers three extra 24 V dc and two 12 V dc power outlets as well as a RUN
button. Although it is designed to neatly integrate with either ARRICAM camera, it can also be used with any
camera to provide extra power outlets, albeit without the RUN button function. It can also be powered from a
separate battery to allow more current to be drawn.
There are a number of options available when mounting and powering the Accessory Power Box:
Mounted on and powered by the camera
The Accessory Power Box attaches directly onto the Studio instead of the In-camera Slate Box and so cannot be
used with it simultaneously. The APB attaches to the Lite only via the Lens Data Box and again, cannot be used
in conjunction with the In-camera Slate Box.
In this configuration, the Accessory Power Box draws its power from the camera electronics and, although this
is the neatest arrangement, the amount of power the APB can deliver in this mode is limited.
• Total power output is 70 watts. e.g. The 24 V outlets can deliver 3 amps between them in total. If the 12 V
outlets are used, they can deliver 3 amps, leaving only 1.5 amps for the 24 V outlets. (Power = Volts x Amps)
• The APB’s BAT light glows red when the camera shows its low battery warning.
• The APB’s RUN button and RUN light function.
Mounted on the camera, powered externally
With this method the Accessory Power Box mounts in the same way as the first example and so has
communication with the camera. The difference is that power is fed into the APB’s power connector either from
a separate battery of from the camera battery via a Y-cable (KC-62-S). This enables the APB to output
considerably more power.
• Total power output is 250 watts approx. e.g. Each 24 V outlet can supply 3 A continuously, 5 A peak.
(24 V is unregulated, so is actually supply voltage). Each 12 V outlet can supply 1.5 A continuously.
• The BAT light glows red when the battery connected to the APB falls below the Low Battery threshold set in
the camera.
• The APB’s RUN button and RUN light function.
Mounted anywhere, powered externally
The Accessory Power Box Cover is equipped with a 3/8 threaded hole which allows it to be mounted with the
ARRI Dovetail system. Therefore it can be placed almost anywhere on or around any camera.
• Total power output is 250 watts approx. (see above).
• The BAT light glows red when the power source falls below 20.5 volts.
• The RUN button and RUN light do not function.
Power input
connector (24 V)
RUN LED
24 V dc outlets
24 V short circuit/
overload LED
RUN button
Mounting screw
12 V overload LED
12 V dc outlets
BAT LED
Mounting screw
Accessory Power Box