Users Manual

Connections
Antennas
4 Antenna connections via R-SMA
The PCB edge mounted R-SMA connectors used in the module. The Digikey part 142-0701-841 as
the reference.
NOTE: The maximum length of the coaxial cable (distance between reader and antennas) is 10m.
NOTE: The impedance of all RF channels is 50 ohm.
ODC interface
● Socket type: RJ-25 socket with top side lock tab location
● Voltage range: 10-24V
● Max unit power consumption from the ODC power line: 1.3W
● Max current through ODC bus: 1.5A (polyfuses)
● ODC port configuration: Audio/Hi-power (optional by resistors; Audio by default)
● Data lines ESD protection IEC 61000-4-2, level 4 (ESD)
○ ±23 kV Contact Discharge
○ ±15 kV Air-Gap Discharge
2 ODC ports as per the current ODC spec
Transmitter unit
● Transmitter chipset: TRF7970
○ Carrier frequency: 13.56MHz
○ Transmit power: 23dBm (200mW)
Cables
An RG316* cable is used to connect the antennas to the device. RG316 impedance is 50Ohm.
The cable shall have attenuation less than 25dB/100m@100MHz (or 8.2dB/10ft@100MHz).
* During the purchase of the cable, special attention should be paid to the production date: should not be purchased a
cable which was stored in warehouses without special packaging for more than 6 months: when the cable is stored
unpacked on the warehouses with high humidity, its characteristics deteriorate significantly.
The Antenna and RFID box will both have R-SMA connections