User Manual

September 25, 2003 4200-46001, Rev. B.00
1-2 User Manual for the Cubic Tri-Reader 2
1.2 Tri-Reader 2 Antenna Type
The Tri-Reader 2 is a loop antenna with a diameter of 78 mm.
Figure 1. Tri-Reader 2 Antenna
1.3 Tri-Reader 2 Interface to Host Unit
There will be a one-to-one (RS422) link between the Tri-Reader 2 and the Host unit.
The Tri-Reader 2 will operate as a single Remote Ticketing Device (RTD).
A shielded RJ45 connector connects the Tri-Reader 2 to the Host unit. This link is
for the serial data.
1.4 RF Communication
All RF communication between the Tri-Reader 2 and the CSC will be accomplished
at a carrier frequency of 13.56 MHz according to modulation/demodulation
schemes for ISO 14443 Type A, ISO 14443 Type B, and/or GO CARD
requirements. At a minimum, the RF field will be able to power three CSCs in close
proximity. The transmitter antenna is tuned to its resonance during production. The
modulation/ demodulation scheme will also be automatically selected by the local
controller.