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S9889 is zero-delay and high speed opto-couplers Rs232 toRS485 converter.  The baudrate available from 300bps to 115200bps.

Technical data:
Input ---  Rs232
Output BUS ---  Isolated RS485
Output Protection ---  Lightning, static
Power input ---  9~24V(AC/DC)
Power consumption ---  <0.6W
Ambient temperature:
Operation ---  0~70C(32~158F)
Storage ---   -20~85C(-4~185F)
Ambient humidity ---  10%~90%RH
Material,enclosure ---  Flame proof plastic
Enclosure rating ---  IP31
Colour ---  Ice Blue
Size ---  100*69*25 mm

Highlights:
A) Zero-delay converter
B) Overvoltage and reverse protection
C) Surge-protected and isolated Rs485 ensure reliability
D) Allows for up to 254 unique devices on one RS485 network

Application:
A) Remote data acquisition
B) Process monitoring
C) Industrial process control
D) Energy management
E) Supervisory control
F) Security systems
G) Laboratory automation
H) Building automation
I) Product testing
J) Direct digital control

Price: $50USD
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