Remove the legacy M5/M3000 CPU and Power/Comm board.

Ensure the enclosure is grounded according to local electrical codes. Poor grounding causes communication failures.

: Connect via the onboard 10/100 MB Ethernet port. Initial Configuration & IP Setup

Position the LNL-3300-M5 board onto the existing backplane connectors. Securing: Secure the board using the provided hardware. Wiring: The LNL-3300-M5

The is a high-performance, IP-based access control panel designed specifically for retrofitting legacy CASI M5000 and M3000 systems. Part of Lenel’s M-Series family, it provides a seamless "drop-in" replacement for older controllers, allowing facility managers to upgrade to the modern OnGuard access control platform without ripping out existing field wiring.

The most searched segment of the revolves around updating the firmware and setting the IP.

Once your pre-installation checklist is complete, you can proceed with the physical installation of the controller.

Regularly backup your OnGuard database and controller configurations.

Blinks rapidly when active communication occurs with the upstream controller. A slow blink or dark status indicates loss of polling data.

For the most current revision of the , always log in to the official Lenel Partner Portal. The hardware is powerful—but only the correct installation unlocks its full potential.

Adding a battery backup is highly recommended. It acts as a temporary power supply to the M Series system when AC power is lost, ensuring continued operation for a limited time.

Define the OnGuard server IP address to allow the controller to communicate with the security system.

Often used for a "bulk erase" or factory reset function when toggled during power-up.

Secure the board using the screws provided in the upgrade kit. Do not overtighten, as this can crack the printed circuit board. Wiring and Connections