The SC105 supports communication between a datalogger and an RS-232 DCE device. It can also be used as an addressable interface to a serial printer. The SC105 allows DCE devices such as short haul modems, cellular modems, and spread spectrum radios to communicate with our dataloggers at rates up to 115.2 kbps. The SC105's internal buffering capability ensures no data is lost during transmission and allows each side to operate at differentbaud rates. Design features include support for concurrent use of the logger's CS I/O port (CSDC), programmable DTR and RTS control, and a current drain of 0.16 mA at standby and 2 to 5 mA while communicating.