Buyer’s noteBuilding access controlPick reader technology first — smart credentials over prox for anything new — then controllers and software follow.

Access Control

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  • Save $295.01
    SDC LR100PDK Electric Latch Retraction Controller
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    SDC LR100PDK

    SDC LR100PDK Electric Latch Retraction Controller

    Multi-door controller for up to 63 doors with 250k credentials

    • Controls up to 63 doors on one controller, consolidating wiring for enterprise deployments.
    • Stores 250,000 credentials across DESFire, MIFARE, NFC, and 125kHz Prox simultaneously.
    • OSDP and TCP/IP dual-protocol support enables encrypted comms and remote management.
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    SDC LR100SDCK 6000 Series Multi-Door Access Control
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    SDC LR100SDCK

    SDC LR100SDCK 6000 Series Multi-Door Access Control

    63-door controller with 250K credentials and four credential types

    • Manages up to 63 doors and 250,000 credentials from a single controller.
    • OSDP and TCP/IP support integrates into existing infrastructure without proprietary gateways.
    • Accepts DESFire, MIFARE, NFC, and 125 kHz prox simultaneously for phased upgrades.
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    SDC LR100SGK Electric Latch Retraction Controller
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    SDC LR100SGK

    SDC LR100SGK Electric Latch Retraction Controller

    Multi-door controller handling 63 doors and 250,000 credentials

    • Single controller manages up to 63 electrified doors, reducing control hardware footprint.
    • Stores 250,000 user credentials, eliminating server splits across multi-facility deployments.
    • Supports DESFire, MIFARE, NFC, and 125 kHz readers on one system via OSDP and TCP/IP.
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  • Save $319.01
    SDC LR100SGK-EM Electric Latch Retraction
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    SDC LR100SGK-EM

    SDC LR100SGK-EM Electric Latch Retraction

    4-door electric latch controller with HID integration and OSDP/TCP/IP

    • Manages latch retraction across 4 doors from a single controller, reducing hardware density.
    • OSDP and TCP/IP dual protocol integrates with Genetec, Lenel, and Salto without extra gateways.
    • Supports 250,000 credentials and retrofits existing panic/fire-rated exit devices without replacement.
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  • Save $295.01
    SDC LR100VDK Electric Retrofit Controller for Von Duprin
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    SDC LR100VDK

    SDC LR100VDK Electric Retrofit Controller for Von Duprin

    Von Duprin retrofit controller for 63 doors with 250,000 users

    • Controls up to 63 doors from one unit, reducing controller count in large facilities.
    • Stores 250,000 user credentials without performance loss, scaling to enterprise deployments.
    • OSDP and TCP/IP support eliminates proprietary wiring and enables multi-vendor reader sourcing.
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  • Save $266.01
    SDC LR100VDK-22-EM Von Duprin 22 ELR Controller Kit
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    SDC LR100VDK-22-EM

    SDC LR100VDK-22-EM Von Duprin 22 ELR Controller Kit

    4-door wired controller for Von Duprin 22 ELR strikes with 250K users

    • Manages 4 independent doors from one controller, reducing wiring runs and control nodes.
    • Stores up to 250,000 HID credentials, supporting large campuses without database partitioning.
    • TCP/IP and OSDP dual-protocol support enables incremental migration without full infrastructure replacement.
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    $776.00 $509.99 Save $266.01
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  • Save $268.01
    SDC LR100VDK-EM Von Duprin ELR Controller Kit
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    SDC LR100VDK-EM

    SDC LR100VDK-EM Von Duprin ELR Controller Kit

    4-door Von Duprin controller with 250K user capacity and OSDP

    • Controls 4 independent doors from one unit, simplifying wiring and panel topology.
    • Stores up to 250,000 user records, supporting enterprise-scale deployments without controller swaps.
    • OSDP encrypted reader communication meets audit requirements for credential data in transit.
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  • Save $23.01
    SDC MC-4 SPDT Concealed Magnetic Door Switch
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    SDC MC-4

    SDC MC-4 SPDT Concealed Magnetic Door Switch

    Concealed magnetic door switch, 30VDC SPDT for access control

    • SPDT contacts provide both NO and NC outputs, eliminating external relay logic.
    • 30VDC rating integrates directly with standard EM lock and strike control circuits.
    • Concealed frame-mount design leaves no exposed hardware, resisting tampering.
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  • Save $31.01
    Sdc/Security Door Controls MC-7 Biased High Security Controller
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    SDC MC-7

    SDC MC-7 High Security Controller

    Biased high-security controller for single/multi-door HID access systems

    • Spring-biased SPDT contact triggers alarm on signal loss, eliminating bypass dead zones.
    • Operates at 30VDC/50mA max — integrates directly into standard access control panels.
    • ¾" recessed housing fits standard frames with up to ½" gap; no external hardware exposed.
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  • Save $107.01
    SDC MD-31DB Request-To-Exit PIR Sensor Controller
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    SDC MD-31DB

    SDC MD-31DB Request-To-Exit PIR Sensor Controller

    4-door PIR exit controller with 250K credential capacity on 30VDC

    • Controls four independent PIR exit points from one controller, reducing panel count and wiring labor.
    • Stores 250,000 credentials onboard, enabling offline operation without a secondary authorization server.
    • Runs on 30VDC and supports OSDP and TCP/IP, fitting directly into standard access control cabinet wiring.
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    $277.00 $169.99 Save $107.01
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  • Save $107.01
    SDC MD-31DOW Motion Detector Controller
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    SDC MD-31DOW

    SDC MD-31DOW Motion Detector Controller

    4-door motion-triggered controller with 250K credential capacity

    • Controls 4 independent door zones from one panel, cutting wiring runs and hardware overhead.
    • Stores 250,000 HID credentials locally so access decisions survive network outages instantly.
    • OSDP and TCP/IP dual comms let you integrate with legacy readers or modern IP platforms without rework.
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  • Save $76.01
    SDC MS-12D Cylinder Latch Monitor DPDT
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    SDC MS-12D

    SDC MS-12D Cylinder Latch Monitor DPDT

    DPDT cylinder latch monitor for up to 4 doors with OSDP/TCP/IP

    • DPDT relay rated 5A @ 30VDC integrates directly with legacy and IP door controllers.
    • Monitors up to 4 deadbolt strikes from one device, cutting wiring runs and panel I/O.
    • Native OSDP and TCP/IP support enables direct integration with major VMS platforms.
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    $196.00 $119.99 Save $76.01
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  • Save $63.01
    SDC MS-14 Cylindrical Latch Monitor
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    SDC MS-14

    SDC MS-14 Cylindrical Latch Monitor

    Real-time latch monitoring for HID access control systems

    • SPDT dry contact rated 5A @ 30VDC connects directly to any access control panel input.
    • Fits standard 4⅞" ANSI strike pocket, retrofitting existing cylindrical lock hardware.
    • Lifetime warranty backs continuous real-time latch state feedback for audit trail compliance.
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    $162.00 $98.99 Save $63.01
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  • Save $76.01
    SDC MS-14D Cylinder Latch Monitor DPDT
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    SDC MS-14D

    SDC MS-14D Cylinder Latch Monitor DPDT

    DPDT cylinder latch monitor for up to 4 doors with OSDP/TCP/IP

    • DPDT dry-contact relay at 30VDC/5A confirms latch engagement on cylindrical locks.
    • Single unit monitors up to 4 doors, cutting panel input channels and per-door cabling.
    • Native OSDP and TCP/IP support enables HID credential integration without gateway translation.
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  • Save $76.01
    SDC MS-16D Mortise Lock Latch Monitor
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    SDC MS-16D

    SDC MS-16D Mortise Lock Latch Monitor

    Mortise deadbolt monitor for 4-door networks with HID integration

    • Single unit monitors up to 4 mortise locks, cutting per-door hardware and panel cost.
    • DPDT dry-contact relay reports deadbolt state at 5A/30VDC with no external power conditioning.
    • Lifetime warranty supports retrofit deployments without full mortise hardware replacement.
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  • Save $81.01
    SDC MS-18D Mortise Lock Deadbolt Monitor
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    SDC MS-18D

    SDC MS-18D Mortise Lock Deadbolt Monitor

    4-door mortise deadbolt monitor with OSDP and TCP/IP networking

    • Monitors deadbolt status across 4 mortise locks from a single 30VDC wired supply.
    • Dual OSDP and TCP/IP comms integrate with HID systems—no bridge or translator needed.
    • DPDT 5A relay outputs deliver deterministic locked/unlocked state to hardwired panels.
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    $210.00 $128.99 Save $81.01
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  • Save $121.01
    SDC MS-19 Mortise Lock Schlage L4 Monitor
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    SDC MS-19

    SDC MS-19 Mortise Lock Schlage L4 Monitor

    Mortise deadbolt for up to 4 doors with Schlage L4 monitoring

    • SPDT contact reports physical deadbolt position to any access control panel in real time.
    • Rated 30VDC / 5A for reliable duty across up to 4-door commercial deployments.
    • Retrofits Schlage L400, Best 48H, Corbin Russwin DL4100, Sargent 4870, and Yale 350 locks.
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    $311.00 $189.99 Save $121.01
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  • Save $103.01
    SDC MS-20D Mortise Lock Latch & Bolt Monitor
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    SDC MS-20D

    SDC MS-20D Mortise Lock Latch & Bolt Monitor

    Mortise deadbolt monitor for up to 4 doors with HID integration

    • Monitors latch and deadbolt position across up to 4 doors from a single device.
    • OSDP and TCP/IP wired connectivity integrates natively with HID and third-party panels.
    • DPDT output rated 5A at 30VDC feeds door status directly to panel inputs and alarm logic.
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    $265.00 $161.99 Save $103.01
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  • Save $122.01
    SDC MSB550-2V36 Mechanical Switch Bar Controller
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    SDC MSB550-2V36

    SDC MSB550-2V36 Mechanical Switch Bar Controller

    4-door controller with 250K user capacity and OSDP/TCP/IP integration

    • Manages 4 independent door circuits from a single 30VDC controller, reducing hardware count.
    • Stores up to 250,000 HID credentials, supporting large campuses without reconfiguration.
    • OSDP and TCP/IP connectivity enables real-time integration over standard Ethernet infrastructure.
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    $297.00 $174.99 Save $122.01
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  • Save $0.01
    Sdc/Security Door Controls PCB112B01-A Terminal Board Controller
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    SDC PCB112B01-A

    SDC PCB112B01-A Terminal Board Controller

    Terminal board controller for SDC 1511/1571 access control systems

    • Interfaces HID credential readers directly to SDC 1511/1571 panel architecture.
    • Consolidates reader inputs and strike relay outputs into a single wiring hub.
    • Lifetime warranty supports long-term deployment in retrofit and new-build installs.
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  • Save $180.01
    SDC PSB560V36 Pressure Sense Bar 36 Inch
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    SDC PSB560V36

    SDC PSB560V36 Pressure Sense Bar 36 Inch

    36" pressure sense bar for multi-door access control at 24VDC

    • Dual solid-state sensors eliminate single-point egress failure across up to 63 doors.
    • OSDP and TCP/IP support integrates with enterprise access control, up to 250,000 users.
    • Runs on 24VDC ±10% at 115 mA peak—fits standard access control power supplies directly.
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    $439.00 $258.99 Save $180.01
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    SDC PSB560Y36 24VDC Electromechanical Lock/Strike with Pressure Sensing
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    SDC PSB560Y36

    SDC PSB560Y36 24VDC Electromechanical Lock

    24VDC electromechanical strike with built-in pressure sensing for 63 doors

    • Built-in pressure sensor enables push-to-exit without auxiliary REX devices.
    • OSDP and TCP/IP dual-protocol support integrates with open ACS platforms.
    • Scales to 63 doors and 250,000 users from a single installation point.
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    $439.00 $258.99 Save $180.01
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  • Save $10.01
    SDC PT-2U 4-Door Access Control Controller
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    SDC PT-2U

    SDC PT-2U 4-Door Access Control Controller

    4-door wired controller with 250K user capacity for campus deployments

    • Manages 4 doors and up to 250,000 HID credentials from a single controller.
    • OSDP and TCP/IP dual-protocol support enables encrypted readers and network integration.
    • Rack-mount form factor with lifetime warranty suits permanent infrastructure deployments.
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    $26.00 $15.99 Save $10.01
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  • Save $0.01
    SDC PT-3V Stainless Steel Armored Loop Controller
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    SDC PT-3V

    SDC PT-3V Stainless Steel Armored Loop Controller

    4-door stainless steel controller for outdoor access networks, 250K credentials

    • Controls 4 independent doors from one unit, cutting controller count on multi-entrance sites.
    • Stores 250,000 HID credentials locally, eliminating capacity constraints in large deployments.
    • OSDP and TCP/IP support enables clean integration into mixed-vendor access control networks.
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  • Save $29.01
    SDC PT-5 UL Listed Concealed Power Controller
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    SDC PT-5

    SDC PT-5 UL Listed Concealed Power Controller

    UL Listed concealed controller for HID-based single-door access systems

    • UL Listed certification satisfies commercial fire and safety code without extra variance review.
    • Native HID credential compatibility drops into existing card-reader infrastructures without adapters.
    • Compact 2"×1"×3" concealed form factor preserves door frame aesthetics in finished spaces.
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  • Save $93.01
    SDC Security Door Controls PTH-10Q Ten Conductor Power Transfer
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    SDC PTH-10Q

    SDC PTH-10Q Ten Conductor Power Transfer

    10-conductor controller for up to 4 doors with 250k user capacity

    • Routes 10 discrete 28 AWG circuits at 1A/30VDC through the hinge—no conduit needed.
    • Supports up to 4 doors and 250,000 user records via OSDP and TCP/IP protocols.
    • Compatible with HID iClass and Prox readers; lifetime warranty included.
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    $239.00 $145.99 Save $93.01
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  • Save $0.01
    SDC RB12V4 12V/4AH Backup Battery Module
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    SDC RB12V4

    SDC RB12V4 12V/4AH Backup Battery Module

    12V/4Ah backup battery for SDC access control during power loss

    • 12V/4Ah capacity sustains door controllers and readers through utility outages.
    • OSDP compatibility integrates with SDC panels using standardized protocol, no proprietary lock-in.
    • Supports NFC 13.56MHz and proximity readers, preserving existing credential infrastructure.
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  • Save $16.01
    SDC RIM-CYL-KA Keyed-Alike Cylinder Module
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    SDC RIM-CYL-KA

    SDC RIM-CYL-KA Keyed-Alike Cylinder Module

    4-door wired controller with keyed-alike cylinders for multi-site consistency

    • Controls up to 4 doors per module over OSDP or TCP/IP wired connections.
    • Keyed-alike cylinders let one key profile serve all doors, reducing key management overhead.
    • Supports up to 250,000 users and accepts HID credentials with lifetime warranty coverage.
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  • Save $608.01
    SDC S4101PU36RE RIM Panic Controller 36-inch
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    SDC S4101PU36RE

    SDC S4101PU36RE RIM Panic Controller 36-inch

    36-inch RIM panic controller for up to 63 doors with 250K credentials

    • Manages up to 63 doors from one control architecture, cutting wiring and admin overhead.
    • Stores 250,000 credentials across DESFire, MIFARE, NFC, and 125kHz proximity card stock.
    • Native fingerprint reader support adds biometric egress without a separate gateway device.
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    $1,480.00 $871.99 Save $608.01
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  • Save $686.01
    SDC S4103PU36REEK Controller
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    SDC S4103PU36REEK

    SDC S4103PU36REEK Controller

    63-door controller with 250K credentials and multi-card support

    • Scales to 63 networked doors without additional control hardware per doorway.
    • Holds 250,000 user credentials, eliminating limits on large or high-turnover sites.
    • Accepts DESFire, MIFARE, NFC, and 125 kHz Prox on one interface for mixed deployments.
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  • Save $650.01
    SDC S4103PU36RESP 63-Door RIM Panic Controller
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    SDC S4103PU36RESP

    SDC S4103PU36RESP 63-Door RIM Panic Controller

    63-door controller with fingerprint biometric and multi-format RFID

    • Manages 63 doors from one controller via OSDP and TCP/IP, cutting hardware sprawl.
    • Supports 250,000 user records, scaling to enterprise multi-building shift deployments.
    • Handles fingerprint, DESFire, MIFARE, NFC, and 125 kHz prox from a single unit.
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    $1,582.00 $931.99 Save $650.01
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    SDC S6101PU36101NC RIM Panic Controller 63-Door
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    SDC S6101PU36101NC

    SDC S6101PU36101NC RIM Panic Controller 63-Door

    63-door controller with multiprotocol card reading and 250K user records

    • Controls up to 63 doors from a single all-in-one RIM-mounted unit, reducing cabinet sprawl.
    • Reads DESFire, MIFARE, NFC, and 125kHz Prox credentials from one head for full legacy compatibility.
    • Stores 250,000 user records on-device, enabling fast local authentication without server dependency.
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    $2,476.00 $1,457.99 Save $1,018.01
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    SDC S6101PU36B RIM 630 36" Door Controller 63-Door
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    SDC S6101PU36B

    SDC S6101PU36B RIM 630 36" Door Controller 63-Door

    Networked controller for up to 63 doors with 250,000 user credentials

    • Manages up to 63 doors from a single controller, reducing wiring and device overhead.
    • Stores 250,000 user credentials on-board, eliminating external database licensing costs.
    • Accepts DESFire, MIFARE, NFC, and 125kHz prox, preserving existing card infrastructure.
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    SDC S6101PU36E RIM Panic Controller 630 36 ELR
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    SDC S6101PU36E

    SDC S6101PU36E RIM Panic Controller 630 36 ELR

    630 RIM panic controller for up to 63 doors with 250K credentials

    • Manages up to 63 doors and 250,000 credentials over OSDP and TCP/IP.
    • Accepts DESFire, MIFARE, NFC, and 125 kHz prox — no reader swap for legacy sites.
    • Field-selectable 15/30-second egress delay; NFPA 101, CBC, and BOCA compliant.
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  • Save $604.01
    SDC S6101PU42E 42" Electronic Locking Rim Controller
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    SDC S6101PU42E

    SDC S6101PU42E 42" Electronic Locking Rim Controller

    42" RIM controller for up to 63 doors with 250,000 user credentials

    • Manages up to 63 delayed egress doors and 250,000 credentials from one controller.
    • Native OSDP and TCP/IP eliminate protocol gateways when connecting to enterprise VMS platforms.
    • Field-selectable 15/30-second delay supports NFPA 101, CBC, BOCA, and Chicago code compliance.
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  • Save $728.01
    SDC S6101PU48E 63-Door Access Control Controller
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    SDC S6101PU48E

    SDC S6101PU48E 63-Door Access Control Controller

    63-door controller with 250K credentials and multi-protocol support

    • Manages 63 independent doors from one controller, reducing cabling and hardware sprawl.
    • Stores 250,000 active credentials locally, eliminating per-door database polling on grants.
    • Accepts DESFire, MIFARE, NFC, and 125kHz Prox—supports mixed credential environments natively.
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    $1,772.00 $1,043.99 Save $728.01
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    $1,772.00 $1,043.99 Save $728.01
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Access Control

Access control systems secure doors, manage credentials, and enforce entry policies across commercial facilities. Build a scalable deployment with the right combination of controllers, readers, credentials, and door hardware.

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
Buying Guide Get Recommendations Deployment Support

Build a Complete System

Most access control installations need these companion products to be fully functional. Add them to your cart for system-wide compatibility.

Door intercoms