Campbell CCFC Instruction Manual - page 97
CCFC Field Camera
86
12.8.4.5 Digital I/O
The light and communication power control output
are in parallel on the same wire on the connector. If
both powers are enabled, the output remains on from
the start of capture to when the file transfer is
complete.
The Digital I/O page allows the configuration of the Modem
Power Control and Lens Defroster Control.
Figure 12-42 Digital I/O Settings
12.8.4.5.1
Modem Power Control
The Modem Power Control setting controls the yellow Power I/O
signal line of the CCFC camera.
The yellow wire, or switch output, is intended to manage the
power to a communication device such as a cell modem. This is
useful in a solar powered site when there is a need to limit power
consumption of communication devices.
This option enables the CCFC to supply up to a maximum of 750
mA of current. The voltage level will be the same as the camera’s
input power (i.e. 12 Vdc).
Some modems require a warm up time or a period of time to
register on a network. The Early Power On option is there for this
purpose. Enter a value in seconds; the maximum value that can be
entered is 300. The default is 120 seconds.
Note