The LNL-3300-M5 acts as the CPU for the controller, replacing legacy CPU boards (E, P, PX, PXN, etc.) and the legacy CASI Power/Comm Board. It is "plug-compatible" with existing field wiring, supporting 12 VDC power, cabinet tamper, and AC power fail inputs from legacy enclosures. 15 MB on-board non-volatile flash memory.
Remove the legacy boards and insert the LNL-3300-M5 into the existing backplane. Ensure it is securely fastened to existing spacers. Wiring:
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Let’s break down exactly what changed and what you need to know before your next install. Lenel Lnl-3300-m5 Installation Manual UPD
Disclaimer: The information provided in this article is for reference only. Always refer to the official Lenel M Series Installation Guide and comply with all local electrical codes and safety regulations when installing or servicing access control hardware.
The controller is transmitting data down to the legacy boards. Solid Green A valid physical network connection is established. Common Troubleshooting Scenarios
Wire the 12 VDC power supply directly to the corresponding terminals on the backplane. The LNL-3300-M5 acts as the CPU for the
: Remove the legacy boards and insert the LNL-3300-M5 into the backplane . It replaces the legacy CPU (E, P, PX, PXN, or PXNplus) and the Power/Comm Board (PN: 110064001) .
The Lenel Lnl-3300-m5 is a 32-door access control panel designed to manage multiple access points in a security system. It supports various communication protocols, including RS-485, RS-232, and TCP/IP. The panel is compatible with different types of readers, including proximity, biometric, and keypad readers.
| Switch 1 | Switch 2 | Switch 3 | Switch 4 | Function | |:--------:|:--------:|:--------:|:--------:|:---------| | OFF | OFF | OFF | OFF | (all settings saved in flash) | | ON | X | X | X | Enable default username/password after initialization (switch read on the fly) | | OFF | ON | X | OFF | Use factory‑default communication parameters | | ON | ON | X | OFF | Use LenelS2 default communication parameters | | ON | ON | X | OFF | Bulk erase configuration memory (when both 1 & 2 = ON, 4 = OFF) | Remove the legacy boards and insert the LNL-3300-M5
Standard installations utilize the legacy enclosure’s battery backup to ensure functionality during a grid power failure. Initial Configuration and Network Setup
: Disconnect field wiring from the legacy CPU and Power/Comm boards .
The UPD manual adds a warning box that was missing before:
Follow this verified sequence derived directly from the .
Connect an Ethernet cable to the RJ45 port on the controller. The manual specifies that the device should be set to a static IP address within the facility’s subnet before adding it to the OnGuard software.