HID Card Formats — Akuvox vs Brivo (26-Bit Wiegand)
Present the same HID fob to a Brivo panel and an Akuvox door station and they report two completely different numbers. Nothing is faulty — they are printing different slices of the same 26-bit credential. This page shows which Akuvox settings make the two agree, and includes a converter for any card.
On the Akuvox device, under Access Control » Card Setting,
set HID Card Display Mode to 6H3D5D. Then pick one:
-
Ignore Facility Code ticked → the reader shows
38320— the plain card number, exactly matching Brivo's External Number field. -
Ignore Facility Code unticked → the reader shows
13638320— facility code and card number run together (136 + 38320).
If you enrol cards in Akuvox using the number printed on the fob, tick Ignore Facility Code.
Where the Numbers Come From
The fob is hot-stamped 38320. Brivo reads it as Standard 26 Bit,
facility code 136, card number 38320. Those two values are the entire
credential:
11103069303-1 on this one) is HID's production marking. It is not encoded in the
card, and neither Brivo nor Akuvox will ever report it. Only the facility code and card number are on the wire.
Every Format, Same Fob
All seven Akuvox display modes are just different ways of printing those same bits. Facility code 136, card 38320, in both facility-code modes:
| Display mode | Ignore FC off | Ignore FC on | What it is |
|---|---|---|---|
6H3D5D recommended
|
13638320 |
38320 |
Facility code as 3 digits, then card number as 5. |
8H10D |
0008951216 |
0000038320 |
Whole payload as one decimal number, 10 digits. |
6H8D |
08951216 |
00038320 |
Same payload as decimal, 8 digits. |
8HN |
008895B0 |
000095B0 |
Raw payload in hex, normal byte order. |
8HR |
B0958800 |
B0950000 |
Same hex, byte order reversed. |
6H3D5DR |
14934816 |
14900000 |
Reversed variant of 6H3D5D. |
8HR10D |
2962589696 |
2962554880 |
Reversed hex expressed as decimal. |
The 6H3D5D values are confirmed on a live
device. The remaining modes follow the same rule — ticking Ignore Facility Code drops the facility-code
byte and leaves the 16-bit card number.
Converter — Any Card
Enter the facility code and card number Brivo shows, and this works out what the Akuvox reader will display in each mode. Everything runs in your browser.
Going the other way — Akuvox shows one long number, what is the facility code?
With 8H10D or 6H8D and Ignore Facility Code
off, the reader shows one decimal number for the whole credential. Divide by 65536: the whole
number is the facility code, the remainder is the card number.
8951216 ÷ 65536 = 136 remainder 38320 → facility code
136, card 38320 — exactly what Brivo shows.
Setting It on the Akuvox Device
Open Access Control » Card Setting
In the door station's web interface, go to Access Control and then Card Setting. The RFID block holds the three settings that decide what number a HID card reports.
Check that HID Support Enabled is ticked under Card Type Support lower down the same page — without it the device will not read HID cards at all.
Set HID Card Display Mode to 6H3D5D
This is the format dropdown. 6H3D5D keeps the facility code and card number as
recognisable, separate fields rather than mashing them into one long number.
Decide on Ignore Facility Code
Tick it to have the reader report just 38320 — the number on the fob and in
Brivo's External Number field. Leave it unticked to get 13638320, with the facility
code carried in front.
Whichever you choose, enrol cards in Akuvox in the same form, or they will not match.
Leave HID Card Order on Normal
Normal is correct for standard HID credentials. The reversed setting, and the R-suffixed display modes, exist for readers that clock the bytes out the other way — only change it if you are deliberately matching such a system.
Submit, then badge a known card
Click Submit to save, then present a card whose facility code and number you know. The number the device logs should match the table or converter above. If it does not, find the number you did get in the table — that tells you which mode the device is actually on.
13638320 form.
Troubleshooting
The card reads, but the number does not match Brivo
Almost always the display mode rather than a bad card. Take the number the Akuvox device reported and
find it in the table above — that identifies the mode it is currently on. Then set it to
6H3D5D with the facility-code option you want.
The number is missing the facility code (or has one you did not expect)
That is the Ignore Facility Code checkbox. Ticked strips the leading 136 and leaves
38320; unticked puts it back as 13638320.
The number looks byte-reversed
Values such as B0958800 or 14934816 are the reversed
variants (8HR, 6H3D5DR), or HID Card Order set to
reversed. Put the order back to Normal and pick a non-reversed display mode.
The device does not react to HID cards at all
Check HID Support Enabled under Card Type Support on the same Card Setting page. If that is unticked the reader ignores HID credentials regardless of display mode.
The facility code is not printed on the fob
Usually it is not — the hot stamp normally carries only the card number. The facility code lives in the encoded data, so you read it from the access system (as in Brivo's card detail screen) or from a reader tool, not from the fob itself.
Worked example verified against a Standard 26-Bit HID credential, facility code 136 / card 38320, cross-checked between Brivo card details and all seven Akuvox display modes on a live device.