Campbell Hausfeld CC640 - Manual (Page 11)

Operating Manual
Table 1. Recommended cable colour connections
Colour Required Connections Recommended Signal Connection
Black Mandatory Ground
Red Mandatory +12V
Green Optional Ext
White N/A No connection or Ground
Yellow Optional RS-485 A or RS-232 TX (Camera Output)
Blue Optional RS-485 B or RS-232 RX (Camera Input)
Clear/Shield Mandatory Camera Shield Terminal
After connecting the camera to a power source, turn the power switch to the ON
position and verify the proper LED sequence before connecting the camera for
communication.
For Standalone Mode, the CC640 can be connected directly to the power supply
by wiring Ground first, and then +12VDC. Capturing images in Standalone mode
requires the use of a FAT16 formatted Compact Flash Memory Card (Section 3.6).
The only wire connections to the camera are the power supply wires (ground and
+12 V) that connect to a 12 VDC source.
The recommended cable for use with the camera is a 3 pair individually shielded
24 AWG cable. The cable part number is L9721 and the Model number for a
finished cable is a FIN6COND-L (L is the required Length). Only shielded cable
should be used with the camera for proper operation. It is recommended to use the
cable supplied by Campbell Scientific, as the cable is of high quality and well
suited for communications between the camera and datalogger.
The individual conductor colours and their recommended connections are outlined
in Table 1. Following the recommended colour scheme is not mandatory and users
may be required to select their own colour schemes for cables with different
colour arrangements.
The maximum recommended cable length of 24 AWG cable is 30 Metres (98.1
feet). Longer lengths can be used, however a heavier gauge of wire is suggested. It
is recommended that the individual wire resistance on the +12VDC and Ground
conductors not exceed 2.7 Ohms. Using longer cable in conjunction with RS-232
communications will require slower BAUD rates. Depending on the cable length
and type of cable, RS-232 may not be suitable for communications and the use of
RS-485 should be considered.
2.2 Configuring
The camera uses PakBus protocol to send image files to the datalogger and both
must be configured to enable communications. The RS-232 port is used in
conjunction with the Device Configuration software to change settings and
operating parameters in the camera (Section 5, Page 14). Device Configuration
Utility is a free download from any Campbell Scientific website.
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