DigiReader Series
P/N 6600025, R
EV
. D 11
SPECIAL FEATURES OF THE DR4201 AND DR4208S
DIGIREADERS:
READER OPERATION (SNET MODE)
•
The reader responds as both a DKR-type and an MSR-type device. The assigned address
message determines the reporting method for this reader.
•
The RF field is powered at all times.
•
The microcontroller uses a synchronous technique to sample the incoming data bits and shift
them into a 48-byte data buffer. The data collection and reporting techniques are key-type
dependent. The reader alternates between the two key types as follows:
•
Key type 1 (WSE QuadraKey
™
, NexKey
™
, 2Smart
™
, and KeyMate
™
):
For 50 msec the key message data is serially shifted into a buffer while searching for an
88-bit PSK key message signal in WSE format. The received key data is validated if it
contains:
•
the proper 8-bit preamble,
•
a 32-bit reserved field,
•
a 32-bit keycode field,
•
a valid mode character,
•
a valid parity character,
•
a valid checksum byte, and
•
the receive buffer contains two identical 88-bit key messages.
Reporting as an SNET DKR-type, only the key ID is reported to the ACU.
Reporting as an SNET MSR-type, the WSE key is reported to the ACU in an SNET MSR-
type log response with:
•
key data in message characters 2-10,
•
site code (always 9999) in message characters 11-14, and
•
company code (always 9999) in message characters 19-22.
Проектирование
.
Монтаж
.
Продажа
. - http://vskd.ru
