Answer:
The DXc1 is the single-loop model in a compact 260 mm tall enclosure (4 kg net), supplied with a 24V DC 2A power supply and battery space for 2 x 7Ah cells (they are not included). The DXc2 (2 loops) and DXc4 (4 loops) use a taller 391.5 mm back box (4.5 kg), incorporate a larger 24V DC 4A power supply, support up to 2 x 17Ah batteries (they are not included) for extended autonomy, and feature a battery-backed real-time clock.
While all models in the Morley-IAS DX Connexion family share identical graphical LCD displays, intuitive 5-key-press setup commissioning, multi-protocol drivers (Apollo, Hochiki, System Sensor), and BS5839-compliant networking capability, the DXc1 differs from the DXc2 and DXc4 in key mechanical, electrical, and hardware capacities:
| Feature / Specification | DXc1 (Part 714-001-111) | DXc2 (Part 714-001-221) | DXc4 (Part 714-001-241) |
|---|---|---|---|
| Addressable Loop Count | 1 Loop (500 mA) | 2 Loops (500 mA per loop) | 4 Loops (500 mA per loop) |
| Internal Power Supply (PSU) | 24V DC, 2A | 24V DC, 4A | 24V DC, 4A |
| Enclosure Dimensions (H x W x D) | 260 x 390 x 147 mm | 391.5 x 390 x 147 mm | 391.5 x 390 x 147 mm |
| Enclosure Weight (excl. batteries) | 4.0 kg | 4.5 kg | 4.5 kg |
| Standby Battery Capacity | 2 x 7Ah batteries (they are not included) | 2 x 17Ah batteries (they are not included) | 2 x 17Ah batteries (they are not included) |
| Standalone Standby Duration | Up to 24 hours | Up to 72 hours | Up to 48 hours |
| Bottom Conduit Knockouts (20 mm) | 2x Knockouts | 4x Knockouts | 4x Knockouts |
| Real-Time Clock | Standard | Battery-backed RTC included | Battery-backed RTC included |
| Zone LED Expansion Support | Up to 40 Zone LEDs | Up to 40, 80, or 160 Zone LEDs | Up to 40, 80, or 160 Zone LEDs |
The compact footprint of the DXc1 makes it the most cost-effective, space-saving choice for facilities with single-loop addressable requirements not requiring larger 17Ah battery sets (they are not included) or beyond-40-zone physical LED arrays.