DOOR ACCESS WIEGAND DA118W Card Reader for Entrance Durable Heavy Duty No Password Leak High Security Access Control

DOOR ACCESS WIEGAND DA118W Card Reader for Entrance Durable Heavy Duty No Password Leak High Security Access Control

The communications protocol used on a Wiegand interface is known as the Wiegand protocol.

The original Wiegand format had one parity bit, 8 bits of facility code, 16 bits of ID code, and a trailing parity bit for a total of 26 bits.

The first parity bit is calculated from the first 12 bits of the code and the trailing parity bit from the last 12 bits.

However, many inconsistent implementations and extensions to the basic format exist.

Many access control system manufacturers adopted Wiegand technology, but were unhappy with the limitations of only 8 bits for site codes (0-255) and 16 bits for card numbers (0-65535),

so they designed their own formats with varying complexity of field numbers and lengths and parity checking.

The physical size limitations of the card dictated that a maximum of 37 Wiegand wire filaments could be placed in a standard credit card, as dictated by CR80 or ISO/IEC 7810 standards, before misreads would affect reliability.

Therefore, most Wiegand formats used in physical access control are less than 37 bits in length.

Full range of affordable Door Readers for Upgrade & Replacement 

1. Collection from SGCCTV   Choicecycle Sim Lim Square CCTV SPECIALIST #02-81 11am~8pm. Whatsapp 98534404 for stock level before visit.

2. Payment by PayNow 201207820G or QR code will receive Free Gift Warning Stickers worth $20.00 (1pc per client order)
3. Please add $18.00 for delivery – 3~5 days.
4. Can issue e-Invoice for your accounting. (upon request)

More choice & solutions : Wireless Video Intercom WL-11 || JO Series ||  JP Series || DA Series  ||  DB Series ||  EZVIZ Video Door Bell  ||
Hikvision FACIAL RECOGNITION DS-K1T341AMF  || HIKVISION IP INTERCOM DS-KIS703-P  ||  HIkvision DOOR ACCESS DS-K1T331W  ||

Biometric Door Access Reader DA22C  || RFID & Password Reader DA188  ||  Wiegand DA118W  

The communications protocol used on a Wiegand interface is known as the Wiegand protocol.

The original Wiegand format had one parity bit, 8 bits of facility code, 16 bits of ID code, and a trailing parity bit for a total of 26 bits.

The first parity bit is calculated from the first 12 bits of the code and the trailing parity bit from the last 12 bits.

However, many inconsistent implementations and extensions to the basic format exist.

Many access control system manufacturers adopted Wiegand technology, but were unhappy with the limitations of only 8 bits for site codes (0-255) and 16 bits for card numbers (0-65535),

so they designed their own formats with varying complexity of field numbers and lengths and parity checking.

The physical size limitations of the card dictated that a maximum of 37 Wiegand wire filaments could be placed in a standard credit card, as dictated by CR80 or ISO/IEC 7810 standards, before misreads would affect reliability.

Therefore, most Wiegand formats used in physical access control are less than 37 bits in length.

DOOR ACCESS WIEGAND DA118W Card Reader for Entrance Durable Heavy Duty No Password Leak High Security Access Control

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