# Custom Fire Alarm and General Signaling Unit ## Description A Fire Alarm and Mass Notification Unit developed by multiple Fire Alarm Enthusiasts. ## Project Details - **Owner:** mrfirealarm - **Created:** 11/2/2022 - **Last Updated:** 11/12/2022 - **Visibility:** Public - **Forks:** 1 ## Key Components ### [object Object]1 — [DPDT Relay](https://www.flux.ai/cbames/dpdt-relay~6p.md) - Datasheet URL: https://datasheet.octopart.com/JS-5-K-Fujitsu-datasheet-1813.pdf - Contact Rating: 8A - Purchase Url: https://octopart.com/js-5-k-fujitsu-798443#Specs - Manufacturer Part Number: JS-5-K - Manufacturer Name: Fujitsu - Coil Voltage: 5V **Pins:** - A - B - COM1 - COM2 - NC1 - NC2 - NO1 - NO2 ### D1 — [PN Junction Diode](https://www.flux.ai/jharwinbarrozo/pn-junction-diode~z7.md) - Breakdown Voltage: 50V - Series Resistance: 0.0286Ω - Emission Coefficient: 2.00 - Saturation Current: 1.88e-9A **Pins:** - A - K ### Q1 — [2N2222](https://www.flux.ai/adrian95/2n2222~l5y.md) - Part Type: Transistor - Manufacturer Name: Solid State Inc. - Datasheet URL: http://www.solidstateinc.us/specsearch/specs/2N2221A-ssi.pdf - Manufacturer Part Number: 2N2222 **Pins:** - BASE - COLLECTOR - EMITTER ### Q2 — [2N2222](https://www.flux.ai/adrian95/2n2222~l5y.md) - Manufacturer Name: Solid State Inc. - Datasheet URL: http://www.solidstateinc.us/specsearch/specs/2N2221A-ssi.pdf - Manufacturer Part Number: 2N2222 - Part Type: Transistor **Pins:** - BASE - COLLECTOR - EMITTER ### Q3 — [2N2222](https://www.flux.ai/adrian95/2n2222~l5y.md) - Part Type: Transistor - Manufacturer Name: Solid State Inc. - Manufacturer Part Number: 2N2222 - Datasheet URL: http://www.solidstateinc.us/specsearch/specs/2N2221A-ssi.pdf **Pins:** - BASE - COLLECTOR - EMITTER ### V1 — DC Supply - Voltage: 24V **Pins:** - ANODE - CATHODE ### V2 — DC Supply - Voltage: 5V **Pins:** - ANODE - CATHODE *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/mrfirealarm/custom-fire-alarm-and-general-signaling-unit~vm](https://www.flux.ai/mrfirealarm/custom-fire-alarm-and-general-signaling-unit~vm).* --- *Generated from [https://www.flux.ai/mrfirealarm/custom-fire-alarm-and-general-signaling-unit~vm](https://www.flux.ai/mrfirealarm/custom-fire-alarm-and-general-signaling-unit~vm)*