OSDP is designed for supervised, bidirectional reader communication, while Wiegand remains common in existing controller projects. The decision should follow the controller, cabling, security requirement and the exact TIMY model interface.
Comparison
Put the decision factors side by side.
Use the table to expose assumptions that should be tested on the selected device and installation.
| Decision factor | OSDP | Wiegand |
|---|---|---|
| Communication | Bidirectional serial communication | Typically one-way credential output |
| Project fit | New systems that require supervised reader communication | Existing controllers and straightforward credential output |
| Compatibility check | Addressing, bus wiring, controller mode and supported commands | Bit format, direction, ground reference and controller input |
| TIMY catalog path | TIMY face machine as OSDP reader or controller in the documented solution | Selected models list Wiegand input/output; confirm direction by model |
Decision checklist
Information to collect before the supplier review.
- 01
Controller make and interface mode
- 02
Cable distance and topology
- 03
Required credential format
- 04
Reader supervision and security policy
- 05
Exact terminal firmware and wiring diagram
Related TIMY paths