Purposes Boss electronic OPT232U (multimode) the OPT232US (single mode) universal serial port / fiber optic converter is used to achieve the the RS-232/485/422 level common optical fiber transmission, is the world's smallest optical fiber converter. OPT232U [S] can be used to RS-232/485/422 port the user is connected to serial fiber optic interface with the different manufacturers. OPT232U [S], of course, can also be used in pairs, also may be communication with the the various Boss fiber converter. , The hardware installation OPT232U Universal serial / optical converter (multimode) shape DB-9/DB-9 adapter box size, where the level of the RS-232 DB-9 (Hole Block) at one end, the need for external 5V power, use a pair of ST fiber optic connectors. OPT232US universal serial / fiber optic converter (single-mode) the shape DB-25/DB-25 adapter box size, DB-25 (socket for) one end of the RS-232 level, requires an external 5V power supply, use a ST fiber optic connectors. The OPT232U the DB-9 female end direct extrapolation PC, DB-9-pin RS-232 port (needle seat), used only RXD-2, TXD, GND-5 three signal lines. The OPT232US DB-25 hole end direct extrapolation PC, DB-25-pin RS-232 port (needle seat), only used RXD, TXD, GND-7 three signal lines. OPT232U [S] DB-9 or DB-25 end can be connected with RS-485/422 Universal fiber converters used to implement a variety of Boston RS-232/485/422 converter. OPT232U [S] requires an external 5V power supply (4.5 V to 5.5V, the power consumption is less than 100mA). OPT Series fiber optic converter transmitter ST head through the optical fiber connected to the other receiver ST head. Boston OPT Series Fiber Optic Converter supports multi-machine communication. Third, the the performance characteristics Boss electronic OPT232U [S] Universal Serial / Fibre Converters rate 0-115.2Kbps. Are without any software initialization settings! Any combination of selectable positive or negative logic input and output, to ensure that the fiber optic interface for all software and serial fiber optic interface ST (optional FC, SC) transmission medium dual fiber optic communication standard RS-232 electric plain wavelength 820nm (multimode optical fiber 50), 1300nm (singlemode) electrical interface DB-9, DB-25 DB adapter size and weight size, 70 - 100 g 17 * 33 * 77mm, the transmission distance of 4Km (multimode), 50Km (multimode) applies / 125,62.5 / 125,100 / 140um