The SC32B Optically Isolated Interface is used to connect a datalogger’s CS I/O port with a PC’s RS-232 port. This interface converts the computer’s RS-232 voltage levels to the CMOS levels of the datalogger. It also isolates the computer’s electrical system from the datalogger, thereby protecting against ground loop, normal static discharge, and noise.

An interface such as the SC32B is required for direct communications between a PC and a CR510, CR500, CR10, CR10X, 21X, or CR7 datalogger. For our CR800, CR850, and CR1000 dataloggers, the SC32B is often used to provide optical isolation between the datalogger and PC. Although the on-board RS-232 port of the CR3000, CR5000, or CR9000X dataloggers is isolated, the SC32B can be interfaced with their CS I/O port when a second RS-232 port is required in the application.

Features

Connects your PC to the CS I/O port on the datalogger
Converts the logic levels of your PC to those understood by the CR7, 21X, CR10X, CR10, CR510, and CR500 dataloggers
Isolates computer electrical system from datalogger
Used with the CR800, CR850, and CR1000 when optical isolation is required
Functionality built into the CR23X, CR3000, CR5000, and CR9000X
Protects datalogger against ground loops, "normal" static discharge, noise
Powered by computer and datalogger
Includes 9-pin ports on both ends
Shipped with SC12 cable and 10873 cable

Specifications

Baud Rates Supported: up to 115 kbps
Power: Drawn from the serial ports of the PC and datalogger
Current (supplied by datalogger): <200 µA quiescent; ~15 mA active
Connections: 9-pin RS-232 female port configured as DCE 9-pin male port

Producing Area:USA