Instruction manual

CC5MPX Digital Camera
66
position) there is a 100 KOhm pull-down resistor connected from the External
Trigger line to ground. When the jumper is placed on the left 2 pins of the header
there is a 47K pull-up resistor connected from the External Trigger line to 3.3
Volts.
The pull-up resistor would be useful for having contact closures or open collector
output signals trigger the camera. In the case of a contact closure the jumper would
be moved to the pull-up position and then 1 end of the contact would connect to the
External Trigger signal and the other end of the contact would connect to ground.
A schematic representation is shown in Figure 8-2.
Figure 8-2 Schmatic Showing External Contact Device
9. RS-232 Communications
The RS-232 serial communications are used with the camera for two purposes: to
configure and setup the camera using Device Configuration Utility software that
Campbell Scientific provides; to send image files from the camera to other devices
using the PakBus protocol.
Check the PakBus port value under the Communications Setting if you are not sure
that your camera has internal jumpers configured to RS-232 or RS-485 (see Figure
9-1).