SR-MU921ASThe reader/writer module is a low-power, high-performance ultra-high frequency reader/writer module designed with a high-performance, highly integrated RF chip solution, featuring low power consumption, high cost-effectiveness, and small size. It can be widely used in various applications such as logistics tracking, product inventory, goods sorting, vehicle management, personnel management, asset management, medical systems, cold chain management, temperature monitoring, power monitoring, anti-counterfeiting systems, and production process control.
Features and advantages
* Design scheme of RF transceiver chip based on low power consumption and high integration
* Adopting a fully shielded structure design significantly improves anti-interference capability
* Operating frequency: 840~868MHz/902~928MHz (can be adjusted according to the requirements of different countries or regions)
* Support electronic tags that comply with EPC Global UHF Class 1 Gen2/ISO 18000-6C standards
* Support reading various sensor electronic tags such as temperature electronic tags and water dew electronic tags
* Optimized multi label inventory algorithm, with an inventory label speed of over 100 sheets per second
* Operates in broad-spectrum frequency hopping (FHSS) or fixed frequency transmission mode
* RF output power up to 30dBm (1dBm step adjustable)
* Support firmware upgrade for IAP
* Low power consumption+5V DC power supply
* Supports 1 SMA antenna interface
* Support 4-channel GPIO input/output, RS-485 control IO, label reading indication IO
* Supports UART serial communication interface (3.3VTTL level)
* Provide DEMO and SDK development kits
* Supporting multiple platforms such asWindows, Android, LinuxDeveloping in multiple languages such as C, C #, JAVA, etc
Main functions | ||
Air interface protocol |
EPC Global UHF Class 1 Gen 2 / ISO 18000-6C |
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Sensor label |
Support temperature and dew sensor labels |
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RSSIdetection |
Support tag signal strength detection |
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RF parameters | ||
operating frequency band |
840~960MHzOptional, frequency hopping function |
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RFoutput power |
30dBm(MAX) |
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Power output step |
1dBm |
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Channel occupies bandwidth |
≤250KHz |
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RF通道 |
1路SMA |
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Accessing tag performance | ||
Continuous reading of label distance |
>25Mi, |
12dBiLinear polarized antenna, 30dBm output power, Standard E41 test card. |
Continuous label writing distance |
>6Mi, |
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Tag recognition speed |
>100Zhang/second |
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communication parameters | ||
communication interface |
+3.3V TTL UARTserial port |
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4GPIO interface (+3.3V TTL level) | ||
1RS485 communication control | ||
1Road label access output indication | ||
communication rate |
9600, 19200, 28800, 38400, 57600, 115200optional |
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Power parameters | ||
Working Voltage |
DC 5.0V (+3.7V~+5.5V) |
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operating current |
≤1.0A / DC 5V |
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standby current |
≤50mA / DC 5V |
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working environment | ||
Operating Temperature |
-20~+65℃ |
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Storage temperature |
-30~+85℃ |
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Operating Humidity |
<95%RH (+25℃)No condensation |
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mechanical parameters | ||
size |
61*43*10mm |
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weight |
40gram |
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