Name: Lenel Interface Module LNL-1320
Brand: Lenel
SKU: 1588
Availability: InStock

Lenel Interface Module LNL-1320

Lenel Interface Module LNL-1320 – Dual Reader Access Control Interface Board

The Lenel Interface Module LNL-1320 (Dual Reader Interface or DRI module) is a commercial access control hardware component designed for the LenelS2 OnGuard platform. Serving as a bridge between an Intelligent System Controller (ISC) and door hardware, the Lenel Interface Module LNL-1320 supports full control for up to two access doors.

As shown in the product image, the board is constructed on a distinct red printed circuit board (PCB) equipped with removable screw terminal blocks, on-board configuration DIP switches, and diagnostic status LEDs. Operating over a 2-wire or 4-wire RS-485 communication bus, the Lenel Interface Module LNL-1320 allows integrators to locate reader interface panels up to 4,000 feet away from the central controller.

Key Features of the Lenel Interface Module LNL-1320

Dual Reader Capability: Connects up to 2 card readers, keypads, or biometric readers using Wiegand, Clock/Data, or RS-485 Open Supervised Device Protocol (OSDP) formats.
Flexible On-Board Power Regulation: Operates on $12text{ to }24text{ VDC}$ power input and features an on-board voltage regulator supplying selectable $12text{ VDC}$ or pass-through power ( $300text{ mA}$ max per port) to connected readers.
Eight Supervised Inputs: Includes 8 alarm input zones configurable as normally open (NO), normally closed (NC), supervised (with End-of-Line $1text{ k}Omega/1text{ k}Omega$ resistor networks), or unsupervised for door contact and Request-to-Exit (REX) monitoring.
Six Form-C Relay Outputs: Equipped with 6 Form-C output relays ( $5text{ A @ }30text{ VDC}$ ) to control door strikes, magnetic locks, aux alarms, or visual indicators in fail-safe or fail-secure modes.
Offline Access Fallback: Supports offline facility-code access, lock, and unlock modes to ensure secure door operation if communication with the host controller is temporarily interrupted.
Advanced Security Encryption: Supports AES 128-bit or 256-bit encryption along with OSDP Secure Channel protocols for secure data transmission.

Common Applications and Industrial Usage

The scalability and interface options of the Lenel Interface Module LNL-1320 make it suitable for high-security facilities:

Enterprise Door Access Control: Regulates single-door or dual-door entry points, managing electric strikes, door position sensors, and local exit request buttons.
Turnstile & Barrier Gate Management: Interfaces card readers and direction-control relays for pedestrian turnstiles and vehicle parking gates.
Biometric & High-Security Verification: Communicates with modern OSDP biometric readers, enabling remote biometric template download and encrypted communication directly to OnGuard servers.
Cabinet & Equipment Monitoring: Dedicated secondary input circuits monitor cabinet tamper switches and UPS power fault states.

Technical Specifications

The electrical limits, mechanical dimensions, and system boundaries of the Lenel Interface Module LNL-1320 conform to access control standard UL 294:

Parameter Specification	Technical Details & Operational Values
Component Classification	Dual Reader Interface (DRI) Access Control Board
Primary Target Keyword	Lenel Interface Module LNL-1320
Operating Input Voltage	$12text{ to }24text{ VDC} pm 10%$
Current Consumption	$550text{ mA}$ max @ $12text{ VDC}$ / $330text{ mA}$ max @ $24text{ VDC}$ (plus reader load)
Upstream Communication	RS-485 (2-wire or 4-wire) multi-drop bus up to $4,000text{ ft}$ ( $1,219text{ m}$ )
Supported Card Formats	Supports up to 16 card and asset formats
Reader Interface Formats	Wiegand (Data1/Data0), Magnetic (Clock/Data), Supervised F/2F, OSDP RS-485
On-Board Inputs	8 General Supervised/Unsupervised ( $1text{ k}Omega$ EOL) + 2 Dedicated Tamper/Power
Relay Outputs	6 Form-C Contacts ( $5text{ A @ }30text{ VDC}$ )
Operating Temperature	$0text{ °C to }+70text{ °C}$ ( $32text{ °F to }158text{ °F}$ )
Physical Dimensions	$152text{ mm} times 203text{ mm} times 25text{ mm}$ ( $6text{"} times 8text{"} times 1text{"}$
Regulatory Compliance	UL 294, UL 1076, CE, FCC Part 15, RoHS

Installation Guidelines and Best Practices

Installation Note: Turn off all main DC supply power before setting hardware DIP switches or inserting wire terminals onto the board.

Setting Addressing DIP Switches: Configure the 8-position DIP switch block to set the unique RS-485 board address ( $0text{--}31$ ) and host communication baud rate ( $9,600text{ to }38,400text{ bps}$ ).

Wiring Supervised Inputs: Wire door contact and exit request lines using $1text{ k}Omega$ End-of-Line (EOL) resistors in series/parallel to allow the board to detect open, short, and tamper states.

Shielded Cable Grounding: Use $24text{ AWG}$ shielded twisted-pair cabling for the RS-485 communication line, grounding the drain wire at one end to prevent electrical noise interference.

To review official access control board datasheets, wiring schematics, and complete OnGuard system hardware guides, check the global LenelS2 Access Solutions Directory.

To request a fast commercial quote or evaluate real-time regional warehouse stock availability for bulk procurement needs, please connect with our sales branch via the Control Qatar Contact Page.