Cypress
Cypress OSM-UDI OSDP universal door interface
Two dry-contact relays and door-status inputs combine with two downstream OSDP reader buses in one door interface.
- Model / SKU
- OSM-UDI
- Category
- Relays & Contactors
- Product type
- OSDP relay / I/O module
- Role
- Control interface
Control & power
- Control type
- OSDP over RS-485
- Power supply
- 8–16 V DC; 12 V typical, 300 mA
OSDP over RS-485 from an access controller that supports this module and its input/output commands. Relay contacts switch an external circuit; they are not the module control input.
A suitable smart controller can expose supported functions to Matter. The control type alone does not confirm electrical compatibility or actual position feedback.
Technical specifications
- Relay outputs
- 2 changeover dry-contact relaysSource ↗
- Inputs
- 3 active-low digital inputs: REX, door position, tamperSource ↗
- Additional output
- 1 active-low digital outputSource ↗
- OSDP role
- Addressed peripheral with one upstream and two downstream OSDP portsSource ↗
- Relay service rating
- 30 V DC / 1 A or 125 V AC / 0.3 A, resistive; 100,000 operations at 20 °CSource ↗
Selection & installation notes
- Requires an OSDP controller with supported I/O commands; a reader-only OSDP port is not sufficient.
- No native Matter. Any Matter exposure depends on a separate controller integration.
Sources & documentation (2)
- Cypress OSM-UDI manufacturer specifications ↗Reviewed Nov 5, 2026
- Cypress OSM-UDI product page ↗Reviewed Nov 5, 2026