Aiphone DA-1AS 1-Call Audio Entrance Box Set with Handset
Overview
The Aiphone DA-1AS is a complete 1-call audio entrance communication system designed for small to mid-size residential and light commercial applications. This set includes the DA-1DS entrance station, DA-1MD handset tenant station, and PT-1211C power supply, providing a straightforward two-wire installation for audio intercom and door access control integration. The DA-1AS supports full-duplex communication at the tenant handset with hands-free operation at the entrance station, enabling clear two-way audio exchange between entry points and interior locations.
Key Features
- 2-Wire System Installation: Quick and easy deployment using two-conductor wiring between entrance and tenant stations, reducing installation complexity and material costs.
- Full-Duplex Tenant Handset Communication: Tenant station features a handset for full-duplex audio, allowing simultaneous two-way voice transmission without switching.
- Hands-Free Door Station: Entrance station operates hands-free, enabling visitors to communicate without holding a handset.
- Integrated Door Release Control: Powered door release functionality through the entrance station without requiring a separate transformer; supports 9.5–20V AC door strikes rated 70Ω or higher resistance. Compatible with Aiphone EL-12S electric door strike.
- Backlit Directory: Illuminated directory at the entrance station improves visibility and usability in low-light conditions.
- Call Tone Volume Control with Mute Indicator: Adjustable call tone volume and mute status indication at the tenant station for flexible call management.
- Option Button for External Device Control: Tenant station includes an option button to trigger external devices such as door strikes or relay-controlled equipment.
Wiring and Distance Specifications
The DA-1AS supports flexible wiring configurations to accommodate various installation layouts. Between the entrance station and tenant station, use either Aiphone 2-conductor shielded wire (#822202) or 2-conductor low-capacitance, non-shielded solid PE-insulated wire (#871802). Power supply to tenant station runs on 2-conductor low-capacitance, non-shielded solid PE-insulated wire (#871802).
Maximum distances from power supply to entrance station or door strike are 360 feet using 22AWG wire or 1,020 feet using 18AWG wire (cumulative run). Power supply to tenant station distances reach 180 feet with 22AWG or 510 feet with 18AWG wire. These distances ensure adequate voltage delivery to all system components across larger buildings or campus-style deployments.
Integration and Compatibility
The DA-1AS is part of Aiphone's DA Series audio intercom ecosystem and works seamlessly with compatible door stations and auxiliary equipment. For enhanced door control, pair with the EL-12S 12V AC electric door strike. If power supply upgrade is needed, the PT-1211CA 15V AC plug-in transformer is available. Extended wire runs are supported through bulk shielded and non-shielded options in 22AWG and 18AWG gauges, sold in 500-foot and 1,000-foot spools.
Package Contents
- DA-1DS 1-Call audio entrance station
- DA-1MD audio handset tenant station
- PT-1211C power supply
Jerry TildsenPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
The Aiphone DA-1AS delivers reliable entry communication for building access control and tenant notification. During deployment planning, I find this system particularly well-suited for small apartment buildings, office complexes, and secure entry points where straightforward audio intercom functionality is the primary requirement. The DA-1AS removes integration overhead by bundling the entrance station, tenant handset, and power supply in a single kit.
Technical Highlights:
- 2-Wire Simplicity: The two-conductor wiring approach significantly reduces installation labor compared to multi-pair systems, making this DA-1AS ideal for retrofit applications or budget-constrained projects.
- Integrated Door Release: Built-in door strike power support eliminates the need for external transformers in most installations, streamlining both wiring and equipment lists.
- Distance Coverage: Support for up to 1,020 feet (using 18AWG wire) from power supply to entrance station enables deployment across larger facilities or multi-building campuses without signal degradation.
Deployment Considerations:
- Plan wiring gauge carefully at the design phase: 22AWG wire limits runs to 360 feet for entrance/strike, while 18AWG extends reach to 1,020 feet. Specify appropriate Aiphone cable stock (#822202 shielded or #871802 non-shielded) based on installation environment.
- Confirm door strike resistance rating (70Ω minimum) before finalizing hardware selection; the EL-12S is the recommended strike for this system.
- Locate the power supply centrally relative to entrance and tenant stations to maximize available distance budget and minimize voltage drop on long runs.
The DA-1AS is a proven fit for straightforward access control and intercom requirements where cost-effectiveness and installation simplicity are priorities. Its integrated power and door release capability reduce component count and total system cost, making it a practical choice for new construction or existing buildings requiring reliable entry communication.
