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Home / RFID / UHF Module / SR-MU921AS

SR-MU921AS

UHF Module

UHF MODULE --- a high-performance UHF RFID Reader Module, which is designed with lower dissipation, high integrated RFID chip design, cost effective and small size

  • Support EU 840~868MHz, US 902~928MHz working frequency (or Customized).
  • Support EPC Global UHF class 1 gen2 / ISO18000-6C protocol RFID tags.
  • Support development based on Windows, Android, Linux etc. and C, C#, JAVA etc.
 

Feature

  • Designed with low power dissipation and high integrated RFID chip solution
  • Adopt fully shielded structure design, significantly improve anti-interference ability
  • Support temperature sensor RFID tag, moisture Sensor RFID tag and some other sensor RFID tags.
  • Optimized multiple tags inventory algorithm, speed is more than 100 per second
  • FHSS or Fix Frequency transmission
  • RF output power up to 30dBm (1dbm step adjustable)
  • Support IAP firmware upgrading.
  • Low-dissipation design with single +5V power supply
  • Support 4 GPIO ports GPIO, I/O Control for RS-485 port and indication I/O for Read Tag.
  • Support 1 external antennas with SMA socket
  • Support UART (3.3V TTL level) interface.
  • Effective distance 25m with 12dBi linear polarized antenna and E41 tag.
  • Provide DEMO and SDK for development

Specifications

Main Function
Protocol EPC Global UHF Class 1 Gen 2 / ISO 18000-6C
Support Tags Normal tag; Temperature sensor tag; Moisture sensor tag
RSSI Support
RF Parameter
Frequency 840~960MHz at option; Fixed or FHSS
RF Output Power 30dBm±1dB(MAX)
Step Power 1dBm
Signal Width <250KHz
Antenna Port 1 SMA
Tag Reading
Reading Distance >25m 12dBi circular polarized antenna, 30dBm, standard E41 testing card.
Writing Distance >6m
Multiple Tag Reading Speed >100pcs/s
Communication Parameter
Interface +3.3V TTL UART RS232
4 ports GPIO (+3.3V TTL Level)
1 port RS485
1 port tag access output indication
Baud Rate 9600, 19200, 28800, 38400, 57600, 115200bps at option
Power Parameter
Operating Voltage DC 5.0V (+3.7V~+5.5V)
Operating Current ≤1.0A / DC 5V
Standby Current ≤50mA / DC 5V
Working Environment
Operating Temperature -20~+65°C
Storage Temperature -30~+85°C
Operating Humidity <95%RH (+25°C) Non-condensing
Mechanical Parameter
Dimension 61*43*10mm
Weight 40g

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