HighTek RS232 to RS485 converter 232 to 485 protocol converter 485 to 232HK-812

Description

HighTek RS232 to RS485 converter 232 to 485 protocol converter 485 to 232HK-812
HK-812RS232 to RS485 Passive Bidirectional Converter
Communication converter with photoelectric isolation protection and lightning
protection
The lightning stroke on the RS485 bus can be effectively prevented
in the use process
The highest communication rate is 9600bps.
Its internal static isolation voltage is 2500V V.
Transient (Pulse) Isolation Voltage 7000V
The RS232 terminal is directly plugged into the serial port of the computer for use.
The photoelectric isolation and lightning protection converter can effectively prevent
the computer from being damaged by induction, static electricity and circulation
generated by ground potential difference.
Oss HK-821 takes power directly from the computer serial port and TXD of RS232
serial port without external power supply, while RTS DTR assists power supply.
HK-812 performance parameters
EIA/TIA compatible RS232C and RS485 standards
Transmission medium: common twisted pair
Transmission distance: 0-1.2 km
Communication rate: 300---9600bps
Power supply mode: computer serial port power supply (when serial port power supply
is insufficient, +5V DC power supply can be added to the connection terminal)
Connection mode: RS485 end: DB9 needle (with 4-position connection terminal)
RS232 end: DB9 hole head
Signals: rs-232: rxd, TXD, DTR, RTS, GNDs485: a, b, gnd
Operating mode: half duplex
Communication Protocol: Transparent
Operating temperature:-10℃-50℃
Relative humidity: 5%-95%
Flow control: no RTS/CTS hardware flow control and software control, intelligent
conversion (automatic flow control)
Remarks:
Signals DCD, DSR, CTS and RI at RS232 end are disconnected on HC-06. RS232
end of unused HC-06 is not the same ground as ground (GND) at 485 end.
Packing: 1pc
warranty period: 120 days
On Nov-01-19 at 10:28:18 PDT, seller added the following information: