User Manual

7
November ’00 Chapter 1. Introduction
Its small size and low supply voltage makes the Mini-RFM well suited for portable
Reading/Writing Units, as well as for stationary equipment where medium read/write
range and speed is sufficient.
The data input and output lines are compatible with the HCMOS- logic family.
1.4 Mechanical Construction
The RF module has a simple mechanical construction where all the components are
mounted on the Printed Circuit Board (PCB). The components of the upper and lower
side of the PCB are protected by metal shields. The PCB also carries the connectors
ST1, ST2 and the antenna terminals A1 to A3 which are captive nuts soldered to the
PCB. These captive nuts allow durable low resistance connection with the ring ter-
minals of the antenna.