Chapter 10: FAQs & Support | 77
What does the AUTO/ON/OFF switch do?
Prior to the introduction of the Phantom UHS-10 Series (the predecessors to the UHS-11
and UHS-12 Series), Phantom cameras did not have a physical power switch. Instead, the
camera powered up any time an appropriate DC voltage appeared on the power input to
the camera. This was done so that cameras could be powered up (booted) remotely by
providing primary power and did not require physical access to the camera.
However, there is a physical power switch on the UHS-12 and UHS-40 cameras. It has
three positions: AUTO, ON and OFF.
When the switch is set to AUTO, providing power to the primary DC input will power up
(boot) the camera and it will be ready for use. In AUTO, providing power to the battery
backup power input of an unpowered camera WILL NOT power up the camera. However,
if there is a loss of primary power, then the battery backup power will be used to maintain
camera operation and protect any stored data.
When the switch is in the OFF position, the camera is off. Providing power to the primary
DC power input or the battery backup input will not cause the camera to power up.
When the switch is moved to the ON position, the camera will power up immediately,
provided there is power connected to the primary DC power port OR the battery backup
port on the camera.
There are several use-cases this scheme enables:
1. Battery backup for mission critical tests: Set the camera to AUTO. Power through
the primary input and provide local battery backup power to the battery backup input.
If primary power is lost, camera operation will continue and data is protected by the
battery backup.
2. Remote power up: You can turn the camera on by providing power to the primary DC
power input when the camera is in AUTO or ON.
3. Remote power cycle: If the camera will need to have power cycled remotely, set the
switch to AUTO and do not use a battery for battery backup.
4. Battery operation: Connect a battery to the battery backup port. Set the switch to ON.
Can I use any Vision Research power supply with the UHS-12
and UHS-40 cameras? I have a power supply from a UHS-11
Series camera, can I use it?
No, you must use the 280W power supply shipped with the camera (Part #VRI-PWR-
SUPPLY-280W-FIS). Spares and replacement power supplies are available from Vision
Research.
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