Chapter 1- Introduction
232DRIO Features
The 232DRIO is a general purpose data acquistion controller that is connected to your computer’s RS-232 serial port. The 232DRIO offers 1 opto-isolated input and 2 relay outputs. With these features, the controller can be used to sense external ON/OFF conditions and to control a variety of devices.
The relay outputs are CMOS/TTL compatible. The optically isolated AC/DC input are also CMOS/TTL compatible. For maximum flexibility, both input and outputs are connected with internal screw type terminal blocks. Three LEDs are provided to monitor the status of each of these.
The 232DRIO connects to your computer’s RS-232 serial port through a DB-9F connector. The unit communicates at a baud rate of 9600, 8 data bits, no parity, and 1 stop bit. This unit can not be powered through the handshake lines because of the higher current requirement to drive the relays. However, the unit may be powered by an external +12Vdc source brought in through the power pin, pin #9 of the serial port. If the 232DRIO cannot be powered using the previous method, it may be powered with +12Vdc @ 100mA through the supplied terminal blocks. Power supply is available.
B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350
PH (815) 433-5100 -- FAX (815) 433-5104
