Indala 27-Bit (Proprietary) Compatible Cards & Fobs
Indala 27-bit is a proprietary Indala/Motorola format extending the 26-bit structure to 13-bit facility codes (0–8,191) and 14-bit card numbers (0–16,383), used in larger deployments requiring more site code capacity.
The Indala 27-bit format is a proprietary extension of the standard 26-bit proximity format, sharing the same PSK-modulated 125 kHz air interface as all Indala credentials but encoding a 13-bit facility code field (up to 8,191 unique site codes) and a 14-bit card number field (up to 16,383 cards per site). It is found in larger enterprise and campus Indala deployments where the 255-facility-code ceiling of standard 26-bit formats was insufficient, and requires Indala-specific readers and panel configuration — it is not interchangeable with 26-bit Indala or any HID Prox format.
Indala 27-Bit (Proprietary) specifications
- Brand / OEM
- HID Global / Motorola Indala
- Technology
- 125 kHz Passive Proximity (PSK modulation — proprietary Indala air interface)
- Frequency
- 125 kHz
- Chip
- Indala proprietary 172-bit RFID coil, PSK-modulated; same physical chip family as FlexPass but programmed with extended 27-bit data structure
- Bit formats
- 27-bit proprietary Indala — 13-bit facility/site code (0–8,191), 14-bit card number (0–16,383), no standard parity layout
- OEM part numbers
- FPCRD (27-bit variant, ordered with 27-bit format code), FPISO (27-bit variant, ordered with 27-bit format code)
Our compatible Indala 27-Bit (Proprietary) credentials
American Key Cards manufactures non-OEM credentials engineered to work with your existing Indala readers — no hardware changes, encoded to your facility code and card-number range.
Can Indala 27-Bit (Proprietary) cards be copied?
Indala 27-Bit (Proprietary) is an open format, so a compatible card can be produced from your facility code and card number. We don't copy individual cards on request — we manufacture new, correctly-encoded credentials for systems you own or manage.
The 27-bit format is a proprietary Indala-specific structure not based on H10301. It offers a substantially larger facility code space (8,191 vs. 255) reducing inter-site duplication risk. Base cards without FlexSecur are reproducible from facility and card numbers. Requires Indala PSK readers — not compatible with HID Prox or other 125 kHz reader families.
Where Indala 27-Bit (Proprietary) is used
- Larger enterprise or campus deployments requiring more facility codes than 26-bit allows
- Legacy Indala installations configured with 27-bit site codes
- Multi-site property management with Indala readers across multiple buildings
Compatible readers
Related formats
You might also need
Indala FlexPass 26-Bit
Indala FlexPass 26-bit is a 125 kHz proximity card format using PSK modulation — architecturally distinct from HID Prox — with Wiegand output supporting 255 facility codes and up to 65,535 card numbers per site.
View compatible cardsIndala ASP / FlexSecur
Indala ASP/FlexSecur adds site-specific encryption between card and reader at the 125 kHz PSK air interface, preventing cloning — cards and readers are paired per site and cannot be substituted with generic or aftermarket credentials.
View compatible cardsHID Prox H10301 (Standard 26-Bit)
The HID H10301 26-bit format is the most widely deployed proximity card format in North America, used on millions of doors across commercial and residential buildings.
View compatible cardsIndala 27-Bit (Proprietary) — FAQ
What is the difference between Indala 26-bit and Indala 27-bit?
Both use the same PSK modulation and physical Indala reader infrastructure. The 27-bit format adds one additional bit to the site code field, expanding facility codes from 255 (26-bit) to 8,191 and increasing card numbers to 16,383 — useful for larger or multi-site deployments that need more unique site codes.
How do I know if my system uses 26-bit or 27-bit Indala cards?
Check the programming label on an existing card (if visible), or ask your installer for the 'format code' used when the system was programmed. The access control panel software should also display the bit format. We can help identify the format from card number ranges if you're uncertain.
Are Indala 27-bit cards interchangeable with 26-bit cards in the same reader?
No — the reader and access control panel must be configured for the specific bit format. A system programmed for 27-bit Indala will not correctly read 26-bit cards, and vice versa. You must match the exact format your system was originally programmed with.