This manual introduces the quick setup, system architecture, system installation and wiring, battery, storage, RS485 data communication bus (AB lines), zones, outputs, SPI header and other contents of Honeywell Galaxy 3 series
This manual provides step‑by‑step instructions for installing Honeywell Galaxy 3 series security control panels and their peripherals. It includes quick‑setup procedures, system architecture diagrams, PCB layout details, and wiring guidelines for zones, keypads, and optional modules.
Key sections cover RS485 expansion modules, power supply specifications, optional RIO and output modules, keypad/keyprox installation, door control (MAX3) configuration, and a full specifications appendix with mechanical and electrical data.
| Enclosure Width | 440 mm |
|---|---|
| Enclosure Height | 352 mm |
| Enclosure Depth | 88 mm |
| Weight | 6.4 kg |
| Operating Temperature | -10 °C to +55 °C |
| Mains Input | 230 V ac (+10%/‑15%) @ 50 Hz |
| Auxiliary +12 V Output (G3‑48) | 0.5 A total |
| Auxiliary +12 V Output (G3‑144/520) | 1.0 A total |
| Fuse AUX1 Rating | 1.0 A |
| Power Supply Total Capacity (G3‑48) | 1.5 A (0.75 A dedicated to battery) |
The Galaxy 3‑48C panel supports 16 zones on board.
A 680 Ω end‑of‑line resistor is required.
The Galaxy 3‑520 has four AB line terminals when an RS485 expansion module is fitted.
The panel operates from –10 °C to +55 °C.