Advanced Control Technologies Inc. 05X7-0X Manuale Utente

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DSH, Datasheet 
903501205 
May 1, 2003 
Zensys A/S 
ZM1220 Z-Wave Module 
Page 10 of 15 
 
CONFIDENTIAL 
4.6 Power 
The Z-Wave Module can be powered by either 3.3V or 5V by the Application Module. If powered by 5V a 
5V-to-3.3V DC/DC converter must be mounted on the Z-Wave Module. As indicated in Table 7 the powe
supply must be quite stable, so it does not create noise in the noise circuitry, resulting in reduced RF 
sensitivity. 
4.7 Antenna 
In order to implement the Z-Wave Module in various products different types of antennas can be 
implemented to get the best RF performance, i.e. range and reliability. The following antennas can be 
implemented: 
•  PCB Antenna (low cost, already integrated on the PCB) 
•  Wire/brace Antenna 
•  Whip Antenna 
 
The PCB antenna can be disabled by removing a resistor and the wire (or brace) antenna can be 
implemented by soldering the wire directly onto the Z-Wave Module. Alternatively a SMA connector can 
be mounted in order to mount a Whip antenna, either directly or via a coax cable. 
4.8 
Z-Wave Module Programming 
The ZM1220 Z-Wave Module is programmed using the SPI interface, RESET_n and the program enable 
signal PROG_N (see section 0). For programming instruction and recommended programming tool(s) 
see [6].