How do the power architectures differ, and what does that mean for installation labor and cabling?

The Speco A1 requires a dedicated 12 VDC @ 2 A power supply, which the spec sheet explicitly notes is not included. Installers must budget for and run a separate 24 V-class power supply circuit to the controller enclosure. The two Form C relays are rated 24 V @ 1.0 A, so the lock-side wiring operates on a distinct voltage rail from the controller itself.

The Geovision GV-AS1620 is powered via PoE 802.3af, drawing its operating power directly from an 802.3af-compliant switch or midspan injector over a single Cat cable run. This eliminates the auxiliary PSU and its associated conduit or raceway at the door side. Physical dimensions are documented at 12.00 × 8.00 × 4.00 in and 4 lb. No comparable enclosure dimensions or weight are provided in the A1 specification set.

What are the reader interface, door capacity, and transaction throughput capabilities of each unit?

The Speco A1 explicitly supports dual Wiegand readers on its single door, enabling badge-in and badge-out tracking at one portal without an additional reader interface module. Transaction throughput is specified at 45+ transactions per second. Onboard storage is listed at 8 GB eMMC, which provides local credential and event log capacity. These figures are absent from the GV-AS1620 specification set.

The GV-AS1620 specification describes single-door control with relay outputs for electromagnetic locks and positions itself within IP-based access control systems. No reader interface type (Wiegand, OSDP, or otherwise), transactions-per-second figure, or onboard storage capacity is stated in the provided specs for the GV-AS1620. Buyers requiring confirmed dual-reader support or a throughput benchmark must verify those parameters directly with Geovision documentation.

Which product carries stronger compliance credentials and longer warranty coverage, and how do they integrate into broader systems?

The Speco A1 carries a UL-294 ETL listing, the U.S. standard for access control units. This certification is a common requirement in commercial construction specifications and insurance mandates. Warranty coverage is 2 years. The spec notes compatibility described only as 'straightforward,' with no named VMS, access management platform, or SDK referenced.

The Geovision GV-AS1620 provides a 3-year warranty, one year longer than the A1. Its integration description references 'IP-based access control systems,' consistent with Geovision's GV-ASManager and broader GV ecosystem, though no specific platform version or API is cited in the provided specs. No UL-294 or equivalent certification appears in the GV-AS1620 specification set provided. Buyers in jurisdictions or verticals requiring listed equipment should confirm certification status independently.

Which should you choose: the A1 or the AS1620?

Our take: The A1 is the stronger choice when UL-294 listing is a project requirement, dual Wiegand reader support must be confirmed at the spec level, or local transaction throughput (45+ tx/sec) and onboard 8 GB eMMC storage are valued. The GV-AS1620 holds a concrete advantage in power simplicity—PoE 802.3af vs. a separate 12 VDC @ 2 A supply not included with the A1—and in warranty duration at 3 years versus the A1's 2 years. The A1's operating temperature range (10°C–35°C / 50°F–95°F) is documented; the GV-AS1620 provides no operating temperature spec in the data provided. For Geovision-ecosystem IP deployments where a single Cat cable to the door is the priority and UL listing is not mandated, the GV-AS1620's PoE architecture is a genuine installation simplifier. For projects requiring certified compliance documentation or confirmed dual-reader throughput figures, the A1 provides those on spec.

Side-by-Side Comparison

Spec-for-spec, from manufacturer data.

Frequently Asked Questions

Related Resources

• Speco Technologies A1 product page — full specs and to add to a quote
• Geovision AS1620 product page — full specs and to add to a quote