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Description
The OTIS OI-7432 is a wired 32-channel controller designed around the OI-6000 detector family. It polls up to 32 OI-6000-series detectors over a single RS-485 Modbus daisy chain — a clean architecture for new wired installations or for expanding an existing 6000-family network.
Four dry-contact relays handle local alarming, the Modbus output integrates with plant systems, and the 160x104 green-backlit display with a five-button interface keeps commissioning and troubleshooting simple. Powered by 120/240 VAC, it is built for permanent plant installations.
- Up to 32 OI-6000-series detectors on an RS-485 Modbus daisy chain
- 4 dry-contact alarm relays with replaceable 4A fuses
- RS-485 Modbus output
- 160x104 green-backlit graphical LCD; 5-button interface
- Compatible with OI-6000, OI-6200, and OI-6400 wired detectors
| Wired input | Up to 32 OI-6000-series detectors via RS-485 Modbus daisy chain |
|---|---|
| Power | 120/240 VAC (275 mA max, controller only) |
| Relays | 4 dry-contact, 4A replaceable fuses; NO/NC, latching/non-latching |
| Digital output | RS-485 Modbus |
| Display | 160x104 green-backlit graphical LCD; 5 push buttons |
| Temperature | -20 to +70 C |
| Enclosure | Fiberglass with clear window; 10 x 8 x 6 in; 8.5 lbs |
| Warranty | 1-year limited hardware |