Several selectable card formats for the credentials used with the access control system are available to choose from in the CONFIG tab of the Configuration screen. Only one format can be used system wide.
To access and select a card format, click Configuration in the pdk io dashboard and click the CONFIG tab. Click inside the Card Format field or on the down arrow to view the drop-down list of formats, the default and most common being the Standard 26-bit Format. Select from:
- 24-bit Card IDs
- 34-bit ADEMCO Format
- 40-bit FIPS Compatible
- Combo 24-bit ID & Standard 26-bit no facility code
- Combo 40-bit FIPS and 26-bit Format
- Combo Ademco 34-bit & Standard 26-bit no facility code
- Combo D10202 & Standard 26-bit no facility code
- Combo D10202 & Standard 26-bit with facility code
- Combo H10304 & Standard 26-bit no facility code
- Combo H10304 & Standard 26-bit with facility code
- Combo N10002 & H10304 no facility code
- HID 32-bit no facility code (N10002)
- HID 33-bit with facility code (D10202)
- HID 37-bit no facility code (H10302)
- HID 37-bit no facility code (H10304)
- HID 37-bit with facility code (H10304)
- HID Corporate 1000 no facility code
- Keyscan 36-bit with facility code (C15001)
- Norris Corp 1000 48-bit no facility code
- Standard 26-bit Format
- Standard 26-bit with facility code
A "format" is the structure of the binary data stored in the card. The number of ones and zeros, and how they are put together, determine the format and ultimately the credential number. When a card is waved in front of a reader, those numbers are sent to the access controller.
The 26-bit Wiegand format is more widely used. Card manufacturers such as HID, Indala, and AWID sell cards with this format to any dealer. This 26-bit format is recognized by all access hardware.
Over the years, formats with a higher number of bits (33, 37, 48, 50) have been added to increase card security. However, some of the higher bit formats are "proprietary" and usually carry a higher price tag. One exception is the HID 37-bit proprietary format, priced similarly to a 26-bit card.
Every card has a consecutive serial number programmed, assigned in your access control software to a cardholder. For 26-bit cards, it can go from 0 to 65,535.
But, what if two companies have the same card numbers? They could access each other´s premises.
To reduce this risk, a second number, know as facility or site code, is encoded into each card. This number can go from 0 to 255 on a 26-bit format card.
As an example, if Company A has cards numbered from 1 to 1000, with facility code 230, they would be encoded as follows:
230 - 00001
230 - 00002
230 - 00003 ...up to 230 - 01000
Company B could have the same serial numbers, but with facility code 180, and their cards would be:
180 - 00001
180 - 00002
180 - 00003 ...up to 180 - 01000
To grant access, an access control system validates the facility code AND the serial number. Company A will reject Company B cards, and vice versa, even if they have the same card serial number because the facility code does not match.
Lately, some formats have a greater number of bits, and make obsolete the notion of facility codes, because the card serial number (like the serial number on currency bills) is never duplicated at the factory. This also means faster delivery of cards, even for add-ons to existing sites, right out of stock.
Cards ship with a facility code (if used) and serial number programmed.
NOTE: If you find it necessary to determine the facility code for your cards, go to Configuration and select the CONFIG tab. Change the card format by selecting Standard 26-bit Format with facility code from the drop-down list. In the Facility Codes field, enter any random facility code number (such as 22). Go to Live Events and it will display the card facility code.
Select the format of the credentials used with the access control system.
MANAGE CARD FORMATS
Click the MANAGE CARD FORMATS button to view the available card formats.
Click the + icon in the lower right to add an additional card format to the existing listed card formats. The Add Card Format screen is displayed.
NOTE: If the reader will not read cards and fobs, ensure that the cards and fobs are HID™ 26- to 37-bit 125kHz RFID compatible.