Nordic ID EXA51 User Manual
Also see for EXA51: Quick guideQuick guideUser guide
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Contents
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2017-04-26Nordic ID EXA51 User GuideVersion 1.31.10.2.3. POWER LEDThe Power LED indicates whether the reader is On/Off. It also indicates the battery level of thereader. The battery level is indicated by the colour of the Power LED.Blinking of the Power LED indicates that the device is charging. The battery level during charging isindicated by the colour of the blinking Power LED.1.10.3. ANTENNASThe Nordic ID EXA51 includes Adaptive Cross Dipole antenna that includes four SW controllable (viaNordic ID RFID demo application and NUR API) antenna modes that are• Linear with horizontal polarization mode (nominal reading distance about 7m/22ft)• Linear with vertical polarization mode (nominal reading distance about 7m/22ft)• Circular polarization mode (nominal reading distance about 4m/13ft)• Proximity mode (reading distance down to 1cm/0.4inch)The linear antenna modes are intended for long range reading when tag density is high and tags arein horizontal or vertical position (Picture 14). In most cases enabling both linear antenna modes doprovide the best performance. The circular polarization mode is intended for use cases requiringmedium range reading and alignment of tags is random (Picture 15). The circular polarization modeworks well if good performance tags are used and the tags easily readable. The proximity mode isideal for locate and tag writing functionalities but shouldn’t be enabled if not needed because it willslow down reading speed.NOTE! Wireless charging is disabled when battery level is low (Power LED is red)Power OnBattery Full> 20 %Power OnBattery Medium10–20 %Power OnBattery Low< 10 %Power Off |
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