Altronix T3SPK77F16SPQ 16-Door Siemens SiPass Access and Power Integration Wall Mount Kit
Overview
The Altronix T3SPK77F16SPQ is a purpose-built, wall-mount power and access control integration kit designed to pair directly with Siemens SiPass systems in large commercial and enterprise deployments. Where a generic power supply forces field engineers to jury-rig wiring between the access controller and the power distribution layer, the T3SPK77F16SPQ resolves that complexity by delivering a factory-engineered single enclosure that handles both: 24VDC at 20A total output across 16 fail-safe/fail-secure door circuits, plus 8 additional managed auxiliary outputs — all fuse-protected and indoor wall-mount ready. If you are commissioning a 16-door SiPass installation and want clean, code-compliant power distribution without improvising a rack full of separate supplies, this kit is the direct answer.
Key Features
- 16 Fail-Safe/Fail-Secure Outputs at 12/24VDC: Each of the 16 primary door circuits is independently addressable for either fail-safe (lock releases on power loss) or fail-secure (lock holds on power loss) operation. That flexibility matters on mixed-use floors where fire egress doors require fail-safe while server room doors must remain locked during a power event — both behaviors are supported in the same enclosure without adding external relays.
- 24VDC @ 20A Centralized Power Output: Twenty amps from a single regulated DC bus is enough headroom to drive 16 electrified locks simultaneously under worst-case inrush without sagging the bus voltage. In SiPass multi-door configurations where lock activation can be simultaneous (door scheduling, mustering events), adequate amperage is what separates a reliable installation from one that trips on peak demand.
- 8 Managed Auxiliary 12/24VDC Outputs: Beyond the 16 door circuits, eight additional managed outputs give the installer addressable power for REX devices, door contacts, auxiliary readers, or ancillary security hardware — eliminating the need for a secondary distribution block and reducing panel clutter significantly on a 16-door build-out.
- Fuse Protection on All Outputs: Individual fusing per output means a wiring fault on one door circuit does not cascade to adjacent doors. In enterprise access control where a single-point failure across multiple doors can trigger a security incident or fire alarm response, per-output fuse protection is a code and liability requirement — not a nice-to-have.
- 115V AC Input: Standard North American single-phase 115V mains input simplifies electrical rough-in. No special transformer tap, no 208V or 240V circuit needed — works off a standard 15A or 20A branch circuit depending on load calculations.
- Indoor Wall-Mount Enclosure: The wall-mount form factor centralizes power distribution adjacent to the SiPass controller panel, shortening DC wire runs to doors and reducing voltage drop across long cable home-runs. Shorter runs also simplify compliance with Class 2 wiring separation requirements in many jurisdictions.
- Altronix/Siemens SiPass Integration: This kit is engineered specifically around the Altronix LINQ and SiPass architecture — the supervision and management interface is native to the platform rather than adapted. That means SiPass-managed access control systems can monitor output status, manage door assignments, and log power events without requiring third-party middleware or custom driver integration.
Integration and Compatibility
The T3SPK77F16SPQ is designed within the Altronix access control power ecosystem, specifically the ALX/SIE integration line for Siemens SiPass. It incorporates Altronix LINQ managed power technology, which allows the SiPass platform to supervise individual outputs, receive fault alerts, and manage access power events from within the SiPass interface. This eliminates the need for a parallel power management system and reduces the total number of supervised components the integrator must maintain. For enterprise deployments using access control power distribution across multiple floors or buildings, LINQ-enabled units can be networked so that a single operator view captures the full power health of the installation. Pair with compatible Altronix battery backup modules and SiPass RM controllers for a fully supervised, fault-tolerant multi-door system. If your project requires outdoor distribution or a larger door count, review other models in the Altronix SIE integration family — this unit is rated for indoor environments only and is scoped to 16 primary door circuits.
Frequently Asked Questions
Q: What is the total power output of the T3SPK77F16SPQ and how many doors does it support?
A: The T3SPK77F16SPQ delivers 24VDC at 20A total output and supports up to 16 primary door circuits (fail-safe or fail-secure, 12/24VDC selectable) plus 8 managed auxiliary outputs for REX devices, contacts, or ancillary hardware.
Q: Is the T3SPK77F16SPQ compatible with Siemens SiPass systems only, or can it be used with other access control platforms?
A: This kit is specifically engineered as an Altronix/Siemens SiPass integration solution and leverages the Altronix LINQ managed power interface designed for SiPass. While the power outputs may function with other controllers at a basic level, the supervised management and native SiPass integration features require the SiPass platform. Verify compatibility with your specific controller before specifying for a non-SiPass deployment.
Q: What type of protection does the T3SPK77F16SPQ provide on its outputs?
A: All outputs are fuse-protected. Individual fusing ensures that a fault or short on one door circuit does not affect adjacent outputs, which is critical for maintaining door access on the rest of the installation during a wiring or lock fault event.
Q: Does the T3SPK77F16SPQ support both fail-safe and fail-secure lock configurations?
A: Yes. Each of the 16 primary outputs supports either fail-safe (unlocks on power loss) or fail-secure (remains locked on power loss) configuration, allowing mixed lock types within the same enclosure to match egress and security requirements door by door.
Q: What AC input does the T3SPK77F16SPQ require?
A: The unit operates on standard 115V AC input, compatible with North American single-phase branch circuits. No step-down transformer or special voltage tap is required.
Q: Is the T3SPK77F16SPQ rated for outdoor installation?
A: No. The T3SPK77F16SPQ is an indoor wall-mount unit and is not rated for outdoor or wet-location installation. It should be mounted in a conditioned mechanical room, IDF, or access control closet adjacent to the SiPass controller.
When you are commissioning a 16-door SiPass deployment, the power distribution architecture is where most integrators lose time and introduce reliability risk. The T3SPK77F16SPQ resolves that by consolidating 24VDC at 20A into a single supervised wall-mount enclosure with 16 individually fused fail-safe/fail-secure outputs — no secondary distribution blocks, no improvised wiring between a generic supply and the SiPass controller.
Technical Highlights:
- 20A @ 24VDC Output Bus: Enough headroom to handle simultaneous lock activation across all 16 doors under worst-case inrush — the spec that matters most in mustering or mass-egress scenarios where every door in a zone releases at once.
- 16 Individually Fused Door Outputs: Per-circuit fuse protection isolates faults to a single door without pulling down the rest of the bus. On a 16-door build-out, that containment keeps a single wiring fault from becoming a multi-door security event.
- 8 Managed Auxiliary Outputs: The additional 8 managed 12/24VDC outputs eliminate the secondary distribution block that otherwise clutters the panel — REX devices, door contacts, and supplemental readers all draw from the same supervised enclosure.
Deployment Considerations:
- This unit is specifically engineered for the Altronix LINQ/SiPass integration architecture. If your project is running a different access control platform, the native supervision features will not function as designed — confirm the controller before specifying.
- The T3SPK77F16SPQ is an indoor-only wall-mount unit. Budget for a conditioned closet or IDF space adjacent to the SiPass controller; the enclosure is not rated for mechanical rooms with temperature extremes or moisture exposure.
The T3SPK77F16SPQ is the right specification for a corporate campus or multi-tenant commercial building commissioning a 16-door SiPass installation where the owner requires supervised power distribution, mixed fail-safe/fail-secure lock support, and clean panel architecture — all from a single factory-integrated enclosure.
