Universal service adapter USA 2.2

Universal service adapter USA 2.2

Universal service adapter USA 2.2 is used:

  1. To connect STRELA sensors with interfaces RS-232, RS-485, TTL UART to a personal computer. The device supports any data protocols, the physical implementation of which is based on RS-232, RS-485, TTL UART interfaces.
  2. For measurement of frequency, voltage and current consumption of STRELA sensors connected to the adapter using special software.
  3. To generate a special signal "Calibration" to calibrate STRELA sensors with voltage and frequency output.
  4. To set Summator light, FLS mediation device, Counter-indicator etc

Universal service adapter USA 2.2 is used:

  1. To connect STRELA sensors with interfaces RS-232, RS-485, TTL UART to a personal computer. The device supports any data protocols, the physical implementation of which is based on RS-232, RS-485, TTL UART interfaces.
  2. For measurement of frequency, voltage and current consumption of STRELA sensors connected to the adapter using special software.
  3. To generate a special signal "Calibration" to calibrate STRELA sensors with voltage and frequency output.
  4. To set Summator light, FLS mediation device, Counter-indicator etc

Main technical characteristics of communication interfaces.

 Name  Value
RS232 interface  
 Input signal voltage range  ±30V
 Output signal voltage range  ±5V
 Used data transmission lines RS-232-Tx,
RS-232-Rx, common line
 RS485 interface   
 Input signal voltage range  -7...+12V
 Output signal voltage range  0.....+5V
 Length of communication line with external device  no more as 1200m.
 Quantity of sensors in network  no more as 32
 Used data transmission lines  RS-485-B, RS-485-A
 TTL UART 
 Input voltage range (Rx UART)  0...+5V
 Output voltage range (Tx UART)  0...+5V
 Length of communication line with external device  up to 3m.
Frequency measurement
Range of measured frequencies  10...30000Hz
Absolute measuring error in the range from 10 to 10000 Hz  ±1Hz
Reduced measuring error in the range from 10 to 30000 Hz  0.5%
Threshold voltage  2.5V
Measuring time 1s
Voltage measurement
Range of measured voltages  0...15V
Reduced measuring error   0.5%
Measurement of current consumption
Maximum current  100mA
Reduced measuring error  1%
Characteristics of the power line
Rated output voltage 12V
Maximum current 100mA
Other characteristics
Source of power USB port
Maximum current consumption 200mA
Galvanic isolation up to 1500V
Baud rate up to 115200 bits per second
 
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