Hardware Description
NXP Semiconductors
AN11xxx
TWR-POSCARD Hardware description
AN11806
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Application note
COMPANY CONFIDENTIAL
Rev. 1.1 — July 2, 2019
4 of 21
1.1 Daughter board
TWR-POS-CLRC663 is a peripheral board that can be plugged into a tower system to
add Contact and Contactless EMV reader functionality.
TWR-POS-CLRC663 is the below board:
Fig 2. TWR-POSCARD V2 Top view
This board can be plugged as in Fig 1, using the TWR-ELEV boards (side connector
boards).
When plugging this board, the Primary and Secondary connection sides have to be
respected. PCI secondary and primary connector are identified on TWR-POS-CLRC663,
and on TWR-ELEV card, see below figure.










