User's Manual
26 Bit Wiegand Data From EM Cards
26-bit EM Card is the most popular one on the market. Almost all the controllers can use the 26-bit
standard format.
A 26 bit Wiegand protocol for card reading has 1 first parity bit, 24 bits of the Card ID, and 1 stop
bit for a total of 26 bits. The first parity bit is an Even parity bit calculated from the first 12 bits of
the code and the trailing parity bit is an Odd parity bit from the last 12 bits. The data output is in
Hex Binary codes.
Each EM card or Keyfob is marked with an unique ID in Decimal Digits that is the code read by the
reader. The EM Card is also marked with a “3 digit + 5 digit” code that are the site code and ID
number arrangement of the Wiegand data.
EXAMPLE:
a) The Code Marked on One of The EM Cards:
b) Each Hex Number Consists of 4 Bits, Total 26 Bits of Wiegand Data Output from Card Reading:
E 6 4 E B 1 3 O
An Even Parity Bit of 6 4 E = 0 An Odd Parity Bit of B 1 3 = 1
c) The 26 bits Wiegand Data Sending Out in Hex Binary from Reading The Card:
0 0 1 1 0 0 1 0 0 1 1 1 0 1 0 1 1 0 0 0 1 0 0 1 1 1
The ID Code to be read for Wiegand Output The Code does not belong to this system
0006613779
008,18789
100,60179
The Site Code and the ID number
The Code in Decimal Number : 6 6 1 3 7 7 9
The Code 6 6 1 3 7 7 9 Equivalent to Hex Number : 6 4 E B 1 3
d) The Arrangement of The Site Code and ID Number of A 26-bit EM Card:
● Site Code: Bit 2 ~ 9 (000~255)
● ID Number: Bit 10 ~ 25 (00000 ~ 65,535)
4) Inhibit All The User Codes & EM Cards for Output 1 (Disable Access Control Manually)
To enhance the security of the access control keypad, the owner can stop the keypad after office hour
or while the house is nobody inside. Once the Output 1 (for door lock control) is inhibited, all the User
Codes / Cards for it become invalid and those people holding the User Code or Card are refused. This
function Starts / Stops in toggle with the following code entry.
------ Door Lock Operation Inhibited, Start / Stop in Toggle
NOTE :
•
The door is locked during Output 1 inhibited and the “INHIBIT” LED (Red) is ON.
•
Inhibition applies to all User Codes and EM Cards for Output 1 only. Output 2 & 3 are not affected.
SUPER USER CODE