Lenel LNL-1300-S3 Series 3 Single Reader Interface Buying Guide

If you run Lenel OnGuard and you need to add a door, you need an LNL-1300-S3. This is the Series 3 single reader interface module — the current-generation SRI that connects one card reader to your Lenel intelligent controller (LNL-2220 or LNL-3300) over RS-485.

The practical questions are whether the module matches your controller and software version, whether it is in stock, and how quickly it can ship. We publish those details on the listing and dispatch qualifying orders dispatch Monday, October 19.

What the LNL-1300-S3 Does

The LNL-1300-S3 is the interface between your Lenel intelligent system controller and a single card reader. It handles one door with:

• Reader Port: 1 — Wiegand, F/2F, Clock/Data, and OSDP Secure Channel
• Card Formats: Up to 16 different formats simultaneously
• Inputs: 4 general-purpose monitored inputs (door contact, REX, etc.)
• Outputs: 2 Form C relay outputs (door strike, auxiliary)
• Communication: AES 128/256-bit encrypted RS-485
• Topology: Multi-drop up to 32 SRI modules per RS-485 port
• Range: Up to 4,000 feet from the head-end controller
• Compatibility: All current and previous versions of OnGuard

It's the same board your integrator would install. The only difference is we sell it to you directly.

Series 3 vs Series 2: Why It Matters

If you're buying today, buy Series 3. The LNL-1300-S3 adds OSDP Secure Channel support and AES-256 encrypted communication over the RS-485 bus. Series 2 boards still work, but they don't support OSDP readers natively. If you're upgrading to mobile credentials or any modern reader platform, you need Series 3.

The S3 is also a drop-in replacement for Series 2 boards. Same footprint, same wiring, same OnGuard configuration. Swap it, re-download, done.

The Integrator Pricing Problem

For Lenel end users, the practical challenge is identifying the correct interface module, confirming compatibility, and finding current stock before a maintenance window or expansion project begins.

Check the product page for current LNL-1300-S3 inventory, condition, shipping options, and guarantee details. Confirm your controller and OnGuard version before purchase.

Who This Is For

You're a facilities manager, IT director, or security administrator who already runs Lenel OnGuard. You have the licensing. You have the ISC. You just need the reader interface board and you need it this week — not next month.

Maybe a board failed and you need a hot spare. Maybe you're adding a door to an existing system and you don't want to engage your integrator for a $300 part. Either way, we've got it in stock.