Campbell SC32B Instruction Manual - Interface
1
SC32B Optically Isolated RS-232
Interface
Datalogger
Computer
SN:
SC32B
Made
in
USA
CAMPBELL
SCIENTIFIC,
INC.
Logan,
Utah
1. Function
The SC32B interfaces an RS-232 peripheral, commonly a computer or
terminal, to the CS I/O of a CSI datalogger. The SC32B has the same functions
as the SC32A. Functions include:
1.
Converting datalogger logic levels to RS-232 logic levels.
2.
Optically isolating the datalogger and the RS-232 peripheral. Optical
isolation separates the SC32B into a datalogger section and an RS-232
section. Signals entering from either side are electrically independent,
protecting against ground loops, normal static discharge, and noise.
3.
Passing data when modem enable pin 5 is high and SDE/printer enable pin
6 is low (normal telecommunications mode).
The SC32B blocks data sent out the datalogger CS I/O port when the SDE/print
enable pin 6 is high. This prevents data sent to an SDE device (e.g., storage
module) or printer output from being sent out the RS-232 port. The SC32B
cannot be configured to pass Instruction 96 serial printer or computer data.
Contact CSI if this capability is required.
2. Specifications
Operating temperature: -25 to +50
°
C (typical)
Power: Powered by datalogger, see "Operation" section
Ports: 9 pin female RS-232 configured as DCE. 9 pin male CS I/O
Size: 1.6” x 0.9” x 3” (4.1 x 2.3 x 7.6 cm)
Weight: 1.6 oz. (45.4 g)