Brivo ACS6100 Two-Door Expansion Board (B-ACS6100-DB)
Model / Series: B-ACS6100-DB
Two-door expansion board for the Brivo ACS6100 — drops into a free chassis slot and adds readers, lock relays, and door inputs for two more doors.
$725 MSRP · equipment only
Sold by order — most of these go in as part of an install, but we'll sell the hardware outright too. Availability, lead times, and project pricing: ask our manager when you request a quote.
We don't just ship boxes — this goes in as part of our access control installation in Chicago work. Inheriting a half-working setup from a previous vendor? Start with a security system takeover.
Specifications
- SKU / Part Number
- B-ACS6100-DB
- Brand
- Brivo
- Model
- B-ACS6100-DB
- Series
- Brivo Access
- Purpose
- Adds two doors to an ACS6100 / ACS6000 panel
- Per Door
- Reader port (OSDP v2 / Wiegand), lock-control relay, door contact + REX inputs
- Installs In
- Free slot in the ACS6100 main chassis or an expansion chassis
- Form Factor
- Plug-in expansion board
Best Fit & Recommended For
Brivo ACS6100 Two-Door Expansion Board
This is the board that does the actual growing on an ACS6100 system. One B-ACS6100-DB drops into a free slot and brings everything two more doors need: a reader port per door (OSDP v2 secure channel or legacy Wiegand), a lock-control relay, and the door contact and REX inputs that let the panel tell a propped door from a legal exit. No separate power runs, no extra network drops — it rides the chassis it plugs into.
The economics are the point. The first doors on any access job carry the panel, the enclosure, and the labor of standing the system up; doors added later on a board like this are the cheapest doors you’ll ever buy. That’s why we size the chassis with empty slots on purpose — when the property leases another floor or finally decides the server room needs a reader, it’s a board and an afternoon, not a project. And when the main chassis fills up, the expansion chassis gives these boards a new home on the same platform.
Doors added on a DB behave exactly like the originals in Brivo Access — same schedules, same mobile credentials, same audit trail, nothing for the facilities team to relearn. If your expansion is more about elevator floors, alarm points, or gate hardware than doors, the I/O expansion board is the other board in this family. Get in touch and we’ll count the slots you have left before you buy anything.
Frequently Installed Together
Brivo
Brivo ACS6100
Boxed high-density Brivo controller — enclosure and WiFi antenna included, two-door board expansion from 6 to 30+ doors for enterprise buildings and campuses.
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Brivo ACS6100 Expansion Chassis
Add-on chassis for the Brivo ACS6100 — extra enclosure space for door expansion boards when the main panel is full, in Regular and Large sizes.
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Brivo ACS6100 I/O Board
Input/output expansion board for the Brivo ACS6100 — auxiliary inputs and relay outputs for elevators, gates, alarm points, and building hardware beyond doors.
View →Brivo
Brivo ACS6100 Power Board
Power supply board for the Brivo ACS6100 — feeds the chassis and its expansion boards, the piece that makes an expansion chassis a working panel.
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Brivo B-BSMF-B
Narrow mullion Brivo smart reader in black — fits glass mullions, slim frames, and elevator cabs; mobile and encrypted smart cards over OSDP.
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