Symmetry™ S841
Contactless Smart Card Reader
The Symmetry S841 is a contactless smart-card reader, with LCD and keypad.
The Symmetry S841 is able to read Texas Instruments™ (ISO 15693) smart cards, and the card
serial number on Philips® MIFARE® smart cards.
For either type of card, the Symmetry S841 supports the use of unencoded cards (where only
the unique card serial number is read).
In the case of Texas Instruments (TI) cards,
an encoded card number can be read. Encoding formats supported include TI’s
own formats and our own “smartMAX” format.
The multifunctional memory structure of Smart Cards makes them ideal for use in data security-sensitive multi-application systems such as access control, cashless
vending, etc.
The Symmetry S841 is designed for use with the Symmetry multiNODE range of controllers and is compatible with Business, Professional,
Enterprise and Global Software at Version 6.0.2 or later.
Unlike Wiegand interface readers, the Symmetry S841 uses secure, bi-directional,
Pseudo-Random
supervised communications between the Symmetry multiNODE controllers and their associated
readers. Both the reader and cable are supervised, and an alarm will sound if the
reader is tampered with or communications lost.
A distance from the Symmetry multiNODE controller to the Symmetry S841 of up to 3000ft (1000m) can
also be achieved.
The Symmetry S841includes an LCD for verification of card accepted and of card rejected.
The LCD display is also used for PIN prompt and to give verification of command
functions initiated through the reader keypad.
Key Features:
- Reads both TI (ISO 15693) smart cards, and the card serial number
on Philips MIFARE smart cards
- Secure, bi-directional, Pseudo-Random supervised communications
- Maximum read range of 2.5” (65mm)
- Integrated Door Pre-held warning buzzer is included
- Audible feedback provides positive confirmation of card read and key press
- LCD for verification of card accepted and card rejected
- LCD is also used for PIN prompt and to give verification of command functions initiated
through the reader keypad