User's Manual

Page 4
Waltz Inc.
The Waltz NFC reader is mostly based on the PN532 board manufactured by Elechouse, epoxy-potted and
connected to an industry standard rectangular housing connector with 4 white wires, the cable protection
being ensured by a transparent sheath.
Ferrites are added to each output line of the board, and decoupling capacitor placed between its power
supply voltage rail and ground. The goal of this is to reduce the EMI emissions to an acceptable level.
The following figure presents the different elements that make up the Waltz NFC reader.
Figure 3: Waltz NFC reader – Elements diagram
The list of the components included in the product is as follows:
- Elechouse PN532 board (click on the link hereinafter): Elechouse PN532 User manual
- Murata BLM21BD152SN1 ferrites, generic 10nF and 10uF capacitors soldered onto the Elechouse PN532
board, close to the wire connection.
- White cable
- Transparent sheath
- Molex rectangular housing connector (0039012040) and its associated crimps
4.2 DESCRIPTION OF THE SYSTEM