Access Control Systems | Commercial Door Access & Credentials

Plan Your Deployment

Door count and expansion requirements
Reader type (card, keypad, biometric) and credential format
Fail-safe vs fail-secure hardware design
Power, cabling, and network connectivity planning
Multi-site governance and consistent standards

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Showing Results for Access Control

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SDC

SKU: LR100SGK-EM

Sdc/Security Door Controls LR100SGK-EM Electric Latch Retraction

4-door electric latch controller with HID integration and OSDP/TCP/IP
- Manages up to 250,000 users across 4 doors in networked deployments
- OSDP and TCP/IP protocols for integration with modern access control systems
- Wired installation with HID credential reader compatibility
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SDC

SKU: LR100VDK-22

Sdc/Security Door Controls LR100VDK-22 Von Duprin 22 Series ELR

4-door networked controller for Von Duprin 22 Series with HID readers
- Supports up to 250,000 user credentials across 4 doors from one platform
- OSDP and TCP/IP communication for integration into existing access control systems
- Wired networked architecture for centralized multi-door management and monitoring
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SDC

SKU: LR100VDK-22V2-EM

Sdc/Security Door Controls LR100VDK-22V2-EM Von Duprin V2 ELR

4-door controller with 250K user capacity for HID access systems
- Manages up to 4 doors with 250,000 user records for enterprise deployments
- OSDP and TCP/IP communication for networked access control integration
- 22V rated operation compatible with Von Duprin V2 ELR ecosystems
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SDC

SKU: LR100Y6K

Sdc/Security Door Controls LR100Y6K Yale Field Install ELR Kit

Field-installable ELR controller for Yale hardware, up to 63 doors
- Supports 250,000 user credentials across DESFire, MIFARE, NFC, and proximity
- OSDP and TCP/IP connectivity for multi-door enterprise deployments
- Installs directly on Yale door hardware without complex setup
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SDC

SKU: LR100YDK

Sdc/Security Door Controls LR100YDK Electric Latch Retraction

Centralized controller for up to 63 doors with 250K credential capacity
- Supports DESFire, MIFARE, NFC, and 125 kHz proximity credentials
- OSDP and TCP/IP protocols for integration with modern access platforms
- Electric latch retraction strike control across distributed entry points
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SDC

SKU: LRVD1L

Sdc/Security Door Controls LRVD1L Latch Status Kit

Latch status controller for up to 63 doors with 250,000 user support
- Manages 63 doors across mid-to-large enterprise access control systems
- OSDP and TCP/IP connectivity integrates with existing security platforms
- Supports DESFire, MIFARE, NFC, and 125 kHz proximity credentials
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$79.99 $71.99 Save $8.00

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SDC

SKU: LRY1L

Sdc/Security Door Controls LRY1L Yale Latch Switch Kit

Yale latch switch controller for up to 63 doors and 250K users
- Supports DESFire, MIFARE, NFC, and 125kHz proximity credentials
- OSDP and TCP/IP protocols for centralized access management integration
- Wired connectivity for multi-zone commercial and institutional deployments
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SDC

SKU: MC-4-2

SDC/Security Door Controls MC-4-2 DPDT Concealed Mag Switch

Concealed DPDT magnetic switch for HID access control door circuits
- DPDT switching handles door monitoring and signal routing in access systems
- 30VDC rated at 0.5A for integration with HID credential readers
- Hidden-mount design fits standard access control architectures discreetly
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SDC

SKU: MC-4M-2U

Sdc/Security Door Controls MC-4M-2U DPS Controller

4-door controller with 250K user capacity and network-based monitoring
- Supports 4 doors with 250,000 user records for large enterprise deployments
- OSDP and TCP/IP protocols integrate with HID-compatible readers and systems
- Network DPS monitoring enables remote status verification and event logging
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SDC

SKU: MC-7

Sdc/Security Door Controls MC-7 Biased High Security Controller

Biased high-security controller for single/multi-door HID access systems
- 30VDC operation with HID credential compatibility for integrated deployments
- Biased control logic engineered for high-security access authentication
- Supports single-door and multi-door installation configurations
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SDC

SKU: MS-12

SDC/Security Door Controls MS-12 Cylinder Latch Monitor

Real-time deadbolt strike monitor for access control audit trails
- Monitors cylinder latch position and reports status to access systems
- Compatible with HID and NFC 13.56MHz readers on 30VDC power
- Installs on standard deadbolt strike door frames for multi-door coordination
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SDC

SKU: MS-16

SDC/Security Door Controls MS-16 Mortise Lock Latch Monitor

Mortise lock latch monitor with HID integration and 30VDC operation
- Continuous latch status feedback for access control verification
- 30VDC deadbolt strike compatible with HID credential systems
- Fits standard mortise lock door frames for enterprise installations
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SDC

SKU: MS-20

SDC/Security Door Controls MS-20 Mortise Bolt & Latch Monitor

TCP/IP networked mortise strike with bolt and latch position monitoring
- Real-time door status feedback via TCP/IP integration with access control systems
- Supports HID and NFC/13.56MHz credentials for flexible reader compatibility
- 30VDC mortise deadbolt strike rated for interior and institutional applications
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SDC

SKU: MSB550-2WV42

Sdc/Security Door Controls MSB550-2WV42 Weather Resistant

Four-door outdoor controller with OSDP and TCP/IP for harsh environments
- Supports 250,000 users with HID proximity and smartcard credentials
- Weather-resistant housing rated for outdoor and industrial deployments
- 30VDC operation with OSDP and TCP/IP protocol integration
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SDC

SKU: MSB550V42

Sdc/Security Door Controls MSB550V42 Exit Mechanical Switch

42" exit switch controller for up to 63 doors with multi-credential support
- Manages 250,000 users across 63 doors at 30VDC operation
- Supports DESFire, MIFARE, NFC 13.56MHz, and 125kHz proximity cards
- OSDP and TCP/IP protocols for network integration and event reporting
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SDC

SKU: PCB112B01-A

Sdc/Security Door Controls PCB112B01-A Terminal Board Controller

Terminal board controller for SDC 1511/1571 access control systems
- HID credential reader support for multi-door enterprise installations
- Direct integration into existing SDC access control system architectures
- Interface module for credential authentication and door access control
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What to Look For When Buying

The six decisions that matter most before you spec.

Fail-Safe vs Fail-Secure

Fail-safe locks (power-to-lock) unlock on power loss — required for egress routes by most fire codes. Fail-secure (power-to-unlock) stays locked on power loss — used on office and storage doors where security trumps egress. Life-safety code interpretation varies by jurisdiction; consult your AHJ before specifying. See our fail-safe vs fail-secure guide.

OSDP vs Wiegand

Wiegand is the legacy reader-to-controller protocol (unencrypted, one-way, limited to 26-bit formats). OSDP (Open Supervised Device Protocol) is the modern replacement — bidirectional, encrypted, supervised, and future-proof for Seos/mobile credentials. New deployments should be OSDP; plan a Wiegand-to-OSDP migration path in legacy systems before adding mobile credential support.

Credential Technology

125 kHz proximity (HID Prox, EM) is the legacy standard — cheap, cloneable, no security. 13.56 MHz smart cards (iCLASS SE, MIFARE DESFire EV3, Seos) use AES encryption and are the commercial standard. Mobile credentials via NFC/BLE increasingly replace physical cards — but only on OSDP-capable readers. Specify multi-technology readers for migration flexibility.

Cloud vs On-Prem Management

Traditional server-based access platforms (Lenel, Genetec, C-Cure) require IT infrastructure and maintenance contracts. Cloud-native platforms (Brivo, Openpath/Avigilon Alta, Genea) eliminate servers but add per-door monthly fees. Mid-size deployments increasingly choose cloud; enterprise + critical infrastructure still favor on-prem. Hardware choice determines which platforms you can run.

Power Supply Sizing

Every lock + reader + controller has an inrush current and a holding current — and they differ. Maglocks hold at 300-500 mA but pull 800 mA on release. UL 294 power supplies rated for total simultaneous holding + 25% headroom, with battery backup sized to code-required runtime. Undersized power supplies are the #1 cause of access-control nuisance failures.

Code Compliance (Egress)

IBC, NFPA 101, and ADA all mandate unimpeded egress. A magnetically-locked door requires a fire-alarm tie-in, a bond-sensor, and a request-to-exit device — omit any and the door is a code violation. Delayed-egress maglocks require 15-second delay + sounder per NFPA. Always confirm lock spec with the AHJ before ordering.

Technology Stack

The specs and acronyms that actually affect outdoor performance.

OSDP v2 + Secure Channel

Open Supervised Device Protocol v2 with Secure Channel Protocol (SCP) delivers AES-128 encryption between reader and controller over RS-485. Replaces unencrypted Wiegand. Required for new federal deployments and FIPS 140-2 applications. All modern HID, ASSA ABLOY, and STid readers support OSDP + SCP.

Seos + iCLASS SE Credentials

HID Seos is the current-generation credential platform: AES-128 encrypted, multi-application, supports mobile wallets, backward-compatible with iCLASS SE. Seos credentials work on Seos readers + older iCLASS SE readers — iCLASS SE credentials do not work on legacy iCLASS (non-SE) readers. Plan migrations carefully.

FIPS 201 / PIV + PIV-I

Federal Identity Verification standard — the credential format used for federal employee and contractor badges. PIV-I (Interoperable) is the commercial variant for hospitals, utilities, and critical-infrastructure contractors. Specify PIV/PIV-I-capable readers (HID pivCLASS, multiCLASS SE) for any facility that hosts government visitors.

UL 294 Listing

Underwriters Laboratories listing for access control system units — power supplies, controllers, and locks. UL 294 6th edition covers security, durability, and overcurrent/overvoltage protection. Insurance and code requirements increasingly specify UL 294 listing. Altronix access-control power supplies are UL 294 listed across the catalog.

Wiegand Protocol

Legacy reader-to-controller protocol — one-way, unencrypted, variable bit-length format. Easily cloned with <$50 hardware. Still widespread because of low cost and universal compatibility. Acceptable for low-security interior doors; should be replaced with OSDP on any external or sensitive-area door.

Request-to-Exit (REX)

Motion- or push-button-activated device that signals the access controller to unlock the door from the secure side without generating an alarm. Required for maglock-equipped egress doors per code. PIR REX sensors must be properly aimed — nuisance alarms and held-door violations trace back to bad REX placement more than any other cause.

Typical Deployment Scenarios

Multi-Tenant Office Building

Lobby turnstiles with multi-tech readers, tenant suite doors with HID Signo + Seos, parking garage with long-range readers, elevator control for floor-by-floor access. Cloud platform (Brivo, Openpath) with mobile credentials replaces physical card issuance. Integration with SIP video intercoms for visitor management.

K-12 School Secure Vestibule

Front entry vestibule with fail-secure electric strike, interior Aiphone video intercom for visitor buzz-in, badge readers for staff, lockdown button integrated with mass notification. Back-of-house doors fail-safe per code. Full VMS integration for event overlay.

Hospital & Healthcare

Unit doors with HID multiCLASS SE + PIV-I compatibility, medication rooms with dual-authentication (card + biometric), ER ambulance bays with ruggedized readers, delayed-egress on behavioral health wards. Lenel or Genetec server-based platform with HIPAA-compliant audit logging. High-cycle-count electric strikes required.

Data Center & Critical Infrastructure

Biometric readers at server-room entries, mantrap doors with anti-tailgating sensors, cage-level access with OSDP + SCP, 7x24 audit logging. FIPS 201 / PIV-I credentials. Integration with IP cameras for tailgating review and infrastructure monitoring for physical-layer security.

Frequently Asked Questions

What's the difference between fail-safe and fail-secure locks?

Fail-safe locks (also called "power-to-lock") unlock on power loss — required for egress routes by most fire and life-safety codes. Fail-secure locks ("power-to-unlock") stay locked on power loss — typically used on office, storage, and supply doors where security trumps egress. Always confirm lock selection with the local AHJ; see our fail-safe vs fail-secure guide.

Is OSDP required for new access control installations?

Not legally required in most jurisdictions — but strongly recommended and effectively mandatory for federal deployments. OSDP with Secure Channel provides AES-128 encryption between reader and controller, bidirectional supervision, and future-proof support for mobile credentials. Legacy Wiegand is unencrypted and easily cloned. New deployments should be OSDP-capable from day one; legacy systems should plan a migration path.

Are HID card readers NDAA compliant?

Yes. HID Global is headquartered in Austin, TX, manufactures in multiple allied countries, and is fully NDAA Section 889 compliant. HID Signo, multiCLASS SE, iCLASS SE, and pivCLASS reader families are all eligible for federal, state government, and critical-infrastructure procurement. Credential cards are manufactured to the same compliance standard.

How do I size an access control power supply?

Add up holding current for all locks + reader standby current + controller standby current, then add 25% headroom for inrush and aging. Battery backup should provide code-required standby runtime (typically 4 hours for fire-alarm tie-ins; 15 min for access-only). Altronix UL 294 power supplies post clear spec sheets for total and per-output current — match to your actual load, don't guess.

Can mobile credentials replace physical access cards?

In most modern deployments, yes — but the reader has to support it. Readers need NFC and/or BLE (Bluetooth Low Energy) plus a partnership with the mobile credential platform (HID Mobile Access, Openpath, Kastle, etc.). Older proximity-only readers cannot read mobile credentials. Mobile adoption is usually mixed with physical cards during a multi-year transition — plan for both.

What's the difference between iCLASS SE and Seos credentials?

iCLASS SE was HID's previous-generation secure credential (AES-128, 2013-era). Seos is the current generation (2016+) — same AES-128 security, but multi-application, mobile-wallet capable, and future-proof. Seos credentials work on Seos-capable readers and on older iCLASS SE readers. iCLASS SE credentials do not work on legacy (pre-SE) iCLASS readers. See our HID Global catalog for current Seos SKUs.

Access Control

Plan Your Deployment

Sub categories

Showing Results for Access Control

Sdc/Security Door Controls LR100SGK-EM Electric Latch Retraction

Sdc/Security Door Controls LR100VDK-22 Von Duprin 22 Series ELR

Sdc/Security Door Controls LR100VDK-22V2-EM Von Duprin V2 ELR

Sdc/Security Door Controls LR100Y6K Yale Field Install ELR Kit

Sdc/Security Door Controls LR100YDK Electric Latch Retraction

Sdc/Security Door Controls LRVD1L Latch Status Kit

Sdc/Security Door Controls LRY1L Yale Latch Switch Kit

SDC/Security Door Controls MC-4-2 DPDT Concealed Mag Switch

Sdc/Security Door Controls MC-4M-2U DPS Controller

Sdc/Security Door Controls MC-7 Biased High Security Controller

SDC/Security Door Controls MS-12 Cylinder Latch Monitor

SDC/Security Door Controls MS-16 Mortise Lock Latch Monitor

SDC/Security Door Controls MS-20 Mortise Bolt & Latch Monitor

Sdc/Security Door Controls MSB550-2WV42 Weather Resistant

Sdc/Security Door Controls MSB550V42 Exit Mechanical Switch

Sdc/Security Door Controls PCB112B01-A Terminal Board Controller

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What to Look For When Buying

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