JA Smart Mart
Description
Microsound MFA20 10-Way Intercom – Door Station + 10 Handsets (NEW)
Complete intercom kit for apartments, complexes, or offices. The MFA20 door station supports up to 20 handsets; this set includes 10 handsets pre-matched to the 10 call buttons on the door station. Designed for straightforward wiring and reliable daily use.
What’s included
- 1 × Microsound MFA20 10-way door station
- 10 × Microsound handsets with bases
Key features
- Supports 2–20 handsets (kit includes 10)
- One or two door stations (second station requires MFAS2 switcher)
- Simple cabling: 3 common wires + 1 call wire per handset
- Door release from the handset (NO contact)
- Surface-mounted, weather-protected door station; system is lightning protected
Specifications
| Door Station (MFA20) | |
|---|---|
| Power | 15 V DC, ~70 mA (via separate PSU) |
| Connections | +15V, GND, Door Strike (NO), TX, RX, GND to handsets |
| Size | Approx. 292 (H) × 156 (W) × 80/55 (D) mm |
| Mounting / Finish | Surface mount; powder-coated steel box with anodised aluminium front |
| Handsets | |
| Power | 15 V DC; ~10 mA idle (≈15 mA ringing) |
| Size | ≈ 215 × 96 × 65 mm |
| Cabling | |
| Wiring | 3 common wires (GND, RX, TX) + 1 call wire per handset |
| Cable Type | 0.8 mm screened fire alarm cable (do not use twisted pair) |
| Max Run | Up to ~500 m accumulated |
Installation notes
- Uses a separate 15 V DC power supply (not included).
- Screen (shield) should be earthed at one point for lightning protection.
- If two door stations are used, fit an MFAS2 switcher and common the call wires.
- Professional installation recommended.
What you may still need (not included)
- 15 V DC power supply (per system)
- Electric door strike/lock and mounting hardware
- 0.8 mm screened fire alarm cable, junction boxes, connectors
References: Microsound MFA series manual for MFA02/08/20 (features, wiring, and specs).
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