S3303 has total 16 channels isolated open-collector output. Output BUS is RS485 with has surge protection, to reduce interference by serial port communication, the output isolated by high speed opto-couplers. The modules are slave devices that can be easily controlled via the RS485 serial interface using the industry standard Modbus protocol.
 

Highlights:
a) Isolated open-collector output can drive power relay directly
b) Surge-protected and isolated Rs485 ensure reliability
c) Standard ModBus protocol allows for up to 254 unique devices on one RS485 network
d) Tell us your requirement, we will update our firmware even after you received the modules ,you can update your modules via ISP through RS485 BUS.
 

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
 

Technical data:
Output channel number--- 16
Output signal--- open-collector
Output current--- maximum 40mA
Output BUS--- RS485 with Standard Modbus protocol
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