WSE Technologies DR4201 - Special Features of the Dr4201 and Dr4208 S Digireaders; Reader Operation (Snet Mode)

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