New LenelS2 installs
Platform choice, controller or node location, reader placement, door hardware, a lock power supply, the network drop, credentials and administrator setup for doors, gates and garages.
Platform focus
Elwin Security installs, configures, repairs and supports LenelS2 access control for commercial and multifamily properties in the San Francisco Bay Area, from its Santa Clara office. A LenelS2 scope covers the choice between OnGuard, NetBox and Elements, the controller or node location, reader placement, lock hardware, lock power, network drop, credentials and administrator handoff.
Use case
LenelS2's security products page lists OnGuard, NetBox and Elements. The controllers, nodes, readers, locks and wiring are on the property, and that is the part Elwin installs and services.
Platform choice, controller or node location, reader placement, door hardware, a lock power supply, the network drop, credentials and administrator setup for doors, gates and garages.
A reader that stops reading, a door that will not release, a controller or node that drops offline, a credential that no longer works, or a mobile credential that will not enroll.
Elwin reviews what is installed and which software version runs it before recommending reuse or replacement.
Service focus
The platform is chosen. The field conditions at each door still set the scope.
For OnGuard, the LNL-M2210 controls a single door with one or two readers and runs on PoE, PoE+ or 12 VDC (LNL-M2210 data sheet, 2025/12). The LNL-M3300 and LNL-M4420 each connect up to 64 doors over two RS-485 ports (LNL-M3300 and LNL-M4420 data sheets, 2025/12).
BlueDiamond multi-technology readers read 125 kHz proximity cards, 13.56 MHz smart cards including MIFARE DESFire EV1/EV2/EV3 and MIFARE Classic, and BlueDiamond Bluetooth and NFC credentials (BlueDiamond readers data sheet, 2026/05). They connect by Supervised F/2F, OSDP or Wiegand. The sheet lists a mini-mullion, a standard-size and a standard-size PINpad model.
Elwin configures, tests and documents each opening, then returns for service calls on readers, door release hardware, controllers, nodes and credentials.
Site walk
The site walk confirms where the controllers or nodes go, how each door releases, where lock power and network come from, and who will administer the system.
Both list an operating temperature of 32 to 95°F.
Existing strikes, maglocks, electrified levers, closers and exit devices at each opening, plus a lock power supply sized to the relay ratings on the controller or interface board. Your fire marshal or AHJ determines compliance.
BlueDiamond readers mount to a wall surface or a standard US, UK or EU switchbox, per the LenelS2 readers data sheet. The same sheet lists a read range of up to 4 in. for RFID cards and up to 30 ft for Bluetooth. Reader cable on an LNL-M2210 runs up to 500 ft for TTL readers and 2,000 ft for RS-485 readers (LNL-M2210 data sheet, 2025/12).
An LNL-M2210 takes PoE at 12.95 W under IEEE 802.3af, PoE+ at 25 W under IEEE 802.3at, or 12 VDC at 1.8 A maximum (LNL-M2210 data sheet, 2025/12).
System layers
LenelS2's data sheets set the limits. The property sets the layout.
LenelS2 says the LNL-M3300 can store up to 500,000 cardholders in non-volatile flash memory. The LNL-M4420 is an Advanced Dual Reader Controller with eight inputs, four Form-C relays, and storage for more than 1,000,000 cardholders depending on configuration.
Your fire marshal or AHJ determines compliance.
The LNL-M3300 and LNL-M4420 need CAT-5 minimum for Ethernet, and their RS-485 device bus runs on shielded 24 AWG twisted pair up to 4,000 ft (LNL-M3300 and LNL-M4420 data sheets, 2025/12). Elements is hosted in a dedicated North America or European Union region, with TLS 1.2+ for data in transit and AES 256 at rest (Elements data sheet, 2026/05). OnGuard Cloud is described as a single-tenant SaaS solution hosted on Amazon Web Services (OnGuard Cloud product page, opened 2026-10-12).
Process
Elwin plans the platform, the controllers, the doors and the administration model before equipment is ordered.
Confirm door hardware, release behavior, reader locations, wiring paths, lock power, controller or node wall space, the network drop, and any existing OnGuard, NetBox, Mercury or BlueDiamond equipment.
Result: A door-by-door scope with the controller, node and board count.
Choose OnGuard, NetBox or Elements, then set administrators, card formats, credential mix, schedules and gates with the property team.
Result: The LenelS2 setup matches how the property is run.
Mount the controllers or nodes, pull cable, wire readers, locks, door contacts and request-to-exit devices, bring the hardware online with the platform, then test each opening and train the administrators.
Result: A working LenelS2 system with documentation and a support path.
What matters
The software side is LenelS2's. The controllers, nodes, lock power, readers, wiring and door hardware are on the property, and that is what Elwin installs and services.
Offline behavior is planned per device. The LNL-M2210 data sheet (2025/12) says the controller functions independently of the host once configured.

A technician fastens a small black wall-mounted device on an exterior stucco wall.

Two hands fit a brushed-metal faceplate into the edge of a dark metal gate post while holding a second faceplate.
Yes. Elwin Security installs, configures, repairs and supports LenelS2 access control for commercial and multifamily properties in the San Francisco Bay Area from its Santa Clara office. The work covers OnGuard, NetBox and Elements hardware, controllers and nodes, readers, lock power, door hardware, network and administrator handoff.
Site walk
Tell Elwin what is not working, what systems are already on site, and which access points matter most. The next step is a scope grounded in the building, not a generic product list.