Product name： UOTEK RS-232 to RS-485/422 Converter with Lightning Surge Protection
Model： UT-242E
● Standards:
RS-232C, RS-485/422 EIA/TIA
● RS-232 DB9
female connector, RS-485 DB9 male connector, with terminal block
● Operating mode: asynchronous half-duplex, differential transmission,
no need jumper setting
● Transmission
media: twisted-pair or shielded cable
● Baud rate:
300bps-115.2kbps
● Dimension:
62mm×40.5mm×21mm
● Operating
temperature: -40℃ to 85℃
● Relative humidity: 5% to 95%
● Transmission
distance: 1,200m (RS-485/422); 5m (RS-232)
● Protection: 2KA lightning surge protection
Overview
For communication between PC with different
standard serial port and external equipments or intelligent instruments,
standard serial conversion is necessary. This converter is compatible with
RS-232C, RS-485/422 standards. It converts RS-232 signals into balanced
differential RS-485 or RS-422 signals. The transmission distance of RS-232
communication can be extended to 1.2km. It adopts unique “RS-232” charge pump
technology to drive the system, and gains power without initializing RS-232
serial port. This converter is with built-in zero delay auto receiving and
transmitting conversion and unique I/O circuit auto control data flow direction
without any handshake signal (RTS, DTR); this guarantees that there is no need
to modify the programming under RS-232 full duplex or half duplex mode, it will
run smoothly under RS-485/422 mode, ensure to suitable for current software and
hardware. The transmission rate is 300-115.2kbps. It can be used between hosts,
host and SCM, which building a point to point, point to multipoint
long-distance communication networking. It is widely applied in industrial
automation control system, all-in-one card, access control system, parking
system, ATM system, bus charging system, canteen ticketing system, attendance
system, and toll station system, etc.
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