SNMP Adapter
Sensors connectivity

• All sensors are  connected to adapter through 1-WIRE^TM  bus

• SNMP adapter read temperatures from most popular econo DALLAS DS1822 digital sensors 1-WIRE^TM

• It's possible to wire 1-WIRE^TM humidity sensors also.

• measure period: 1sec

• Temperature range: -40 .. 125C

• Resolution: 0.1C

• All sensors are connected parallel by 1-WIRE Bus, it is needed only 1cable for all sensors
  
  
   

• Sensors are connected to SNMP agent via the hubs. It is only Help for easy and fast wiring sensors.
  
  
   

• Connections between hubs are establishing with 4-wire cable crimped with RJ4-4 connectors.

• On each hub is temperature sensor DS1822 mounted.
  (it is possible to connect sensor to hub with cable)
   

• On each hub are mounted 3x RJ4-4 connector.

• Every sensor have 64 bit ROM lasered address.
  Address settings and configurations in SNMP agent, user making by the RS232 terminal.
  Sensors setup names in TELNET session
   

• Maximum number of sensors: 16

• Maximum length between two hubs: 15m

1-Wire^TM  Temperature and
Air Relative Humidity Sensor

• In wall mounting plastic case are mounted DS1822 temperature sensor and Humidity sensor.
• Humidity sensor measure Air relative humidity in range: 15 .. 95%RH.
• Not suited for dusty airs.
   
• Humidity sensor is controlled by newest Microchip PIC12F675 microcontroller.
• Processor measuring the air relative humidity by PHILIPS sensor.
• insure communication on 1-WIRE bus.
• Each sensor have 48bit address
• Supported 1-WIRE Commands:
  - Get ROM Address
  - Start conversion with addressing
  - Get Humidity with addressing
   
• Humidity HUB is powered from SNMP adapter 3.3V
• Maximum current: 2mA
• Dimensions: 85 x 85 x 30 [mm]

Note: see prices for current price