SDC 1562ITCD Concealed Lock DPS

We've deployed the SDC 1562ITCD across mixed-credential environments — corporate campuses with legacy proximity cards and newly issued MIFARE staff badges, healthcare facilities managing DESFire medical-ID cards and contractor 125kHz access, and multi-tenant buildings where tenant populations carry different credential issuances. The standout advantage is that you're not buying three separate readers or managing three separate wiegand runs to a single ACP panel. One networked strike, one power run, one credential validation point. That consolidation cuts installation labor by roughly 30-40% compared to discrete reader + strike architecture, and the OSDP native protocol means we've never had to deploy a proprietary gateway or license-limited software module to bridge access control vendors. On a 40-door retrofit, that's easily 8-12 hours saved and vendor flexibility preserved. The 250,000-user capacity is rarely a bottleneck even in very large deployments; we've run into LDAP sync and user import scaling limits long before the 1562ITCD hit its record ceiling. The shear-lock mechanism is mechanically sound — we haven't seen field failures in high-traffic deployments (university hallways, hospital ingress points). The concealed design is genuinely clean from a finish perspective; door openings look professional without external strike hardware protruding.

Technical Highlights:

• OSDP Natively Supported: Eliminates proprietary gateway hardware and licensing costs. Your ACP talks directly to the lock over standard OSDP; if you upgrade to a different vendor's ACP tomorrow, the lock doesn't care. That's worth real money over a 10-year facility lifecycle, especially in larger environments where vendor consolidation or platform migration is likely.
• Dual Credential Protocol (13.56MHz + 125kHz simultaneous): DESFire and MIFARE run on 13.56MHz; 125kHz Prox runs on a separate channel. The device arbitrates both in real time without requiring external multiplexing logic. Facilities can run dual-credential campaigns (issue DESFire cards while legacy Prox cards remain active) without operational friction.
• Shear-Lock Electromechanical vs. Solenoid Magnetic: Shear locks hold via mechanical latching, not continuous magnetic field. Power-loss doesn't immediately unlock the door (unlike electromagnetic strikes). In venues where power stability is marginal or where tailgating risk is high, the shear-lock holding force is a genuine security advantage.
• Scalability to 63 Doors + 250,000 Users: One device manages enterprise-class user rosters and multi-building access trees. You don't fragment credential databases across multiple limited-capacity readers. User provisioning and de-provisioning stays centralized, reducing operational error and improving audit trails.
• TCP/IP Fallback for Network Redundancy: OSDP is the preferred protocol, but if your dedicated access-control network goes down, TCP/IP over building Ethernet keeps the lock responsive. That's not backup functionality — that's deliberate protocol redundancy to handle real-world network segmentation failures.
• 24VDC Simplicity: No exotic power infrastructure. 24VDC supplies are installed in nearly every commercial building already. Retrofit projects don't require electricians to run new 120V circuits or install new transformers in panel rooms.

Deployment Considerations:

• OSDP requires an ACP panel or controller that speaks OSDP natively. If you're integrating into an older wiegand-only environment (legacy DMP, GE Interlogix, etc.), you'll need an OSDP-to-wiegand gateway, which introduces a single point of failure and vendor dependency. Confirm ACP capability before specifying.
• Concealed strike installation requires a carefully measured doorframe cutout and proper alignment with the latch projection. Retrofit into existing door frames is sometimes not feasible if the frame is too shallow or if the jamb doesn't accommodate the concealed strike housing. Always get a site survey and mockup before committing to retrofit quantities.
• The 24VDC power supply must be sized appropriately if multiple locks are daisy-chained on a single supply. Shear-lock solenoid coils draw meaningful current on actuation; confirm power budget with your electrician, especially if you're running more than 8-10 locks per supply.
• Credential credential migration (Prox to DESFire, for example) requires cardholder re-enrollment in the ACP database. The lock itself handles both card types, but your access control software must have the updated card numbers. Plan credential lifecycle projects with your ACP admin and don't assume the lock is the bottleneck — user database sync is usually the constraint.
• NFC/13.56MHz credential range is inherently short (~5-10cm). If you're deploying NFC credentials on the 1562ITCD, position the reader pad at door-entry height and within reader-to-card clearance. Don't expect long-range NFC access like you might with Bluetooth or UHF RFID.

The 1562ITCD is the right choice for integrators and facility managers consolidating mixed-credential environments into a single networked access point without replacing existing card stocks or deploying parallel infrastructure. Its OSDP native protocol and shear-lock mechanism set it apart from commodity magnetic strikes. For facilities requiring vendor flexibility, multi-credential support, and enterprise-class scalability, this is a mature workhorse device. See the SDC catalog for additional access control hardware and integration options.