i-PRO MC-PIM400-485 PIM400-485 Panel Interface Module (RS485 to Wiegand)
The MC-PIM400-485 is a PIM400-485 panel interface module that bridges an RS485 serial bus to a Wiegand access-control panel input. Sites with legacy Wiegand-only panels can still integrate modern OSDP / RS485 devices by passing the data through the PIM400-485, preserving the existing panel investment while unlocking secure-channel reader benefits at the door.
Key Features
- Interfaces RS485 / OSDP reader buses to legacy Wiegand panel inputs
- Preserves existing access-control panel investment during reader upgrades
- Single point of conversion per supervised channel
- Powered from the access-control power supply alongside the readers
- Compact PCB suited to enclosure or panel cabinet mounting
- Form-factor and pinout matched to the broader PIM400 family
- Helps customers migrate to OSDP without ripping out controllers
OSDP is the secure-channel successor to Wiegand. Where Wiegand sends clear-text card data on a short cable, OSDP encrypts the link and supports tampering monitoring, longer cable runs, and bi-directional reader communication. Customers want OSDP at the door but cannot always replace their installed panel base. The PIM400-485 is the bridge that allows the field upgrade to OSDP without the panel refresh, deferring CapEx and letting the customer phase the migration on their own timeline.
Install the PIM near the panel and run RS485 out to the readers; minimize the Wiegand side of the link to its native short-distance regime. Configure end-of-line termination on the RS485 bus to keep signal integrity clean. After install, verify card reads on the OSDP side and confirm the panel receives the Wiegand stream cleanly through a few test cards. Document the interface module in the as-built so future technicians know the channel is bridged.
