8 Port Passive PoE Injector, Managed and Fused: Unterschied zwischen den Versionen
Dl8rds (Diskussion | Beiträge) |
Dl8rds (Diskussion | Beiträge) |
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| Zeile 22: | Zeile 22: | ||
* Neutrik NE8FDP RJ45 Durchgangs-Einbaubuchse, vernickeltes D-Gehäuse: Amazon: 9 € | * Neutrik NE8FDP RJ45 Durchgangs-Einbaubuchse, vernickeltes D-Gehäuse: Amazon: 9 € | ||
* ah 19" Parts 87407V 19" Leergehäuse 1 HE mit Lüftungsschlitzen: Amazon: 44 € | * ah 19" Parts 87407V 19" Leergehäuse 1 HE mit Lüftungsschlitzen: Amazon: 44 € | ||
| − | |||
| − | |||
* Netzdrossel: 5 € | * Netzdrossel: 5 € | ||
* 10x Sicherungshalter: 25 € | * 10x Sicherungshalter: 25 € | ||
| Zeile 43: | Zeile 41: | ||
* Kabelschuhe: 5 € | * Kabelschuhe: 5 € | ||
* 8x ACS712: 70 € | * 8x ACS712: 70 € | ||
| − | * Gravitech 8 Channel ADC I2C: 20 € | + | * 2x Gravitech 8 Channel ADC I2C: 20 € |
* 20x R, 50 kOhm, 8x ZenerDiodes 4,5V: 5 € | * 20x R, 50 kOhm, 8x ZenerDiodes 4,5V: 5 € | ||
| + | * 1x PCF8575: 3 € | ||
| + | * 1x PCF8574: 3 € | ||
| + | * 1x Gravitech I2C-TRN: 10 € | ||
| + | * NanoPi Neo2 | ||
------- | ------- | ||
| − | + | 530 € | |
| + | |||
| + | == Progress and Experiences == | ||
| + | |||
| + | Once again my experience hit me hard that Arduino type controllers are only really good if their usage is exclusively related to reading out values. They don't excel very much as web platforms. Given that they are rather big compared to those recent NanoPi Neo type minicomputers, I have taken the decision to prefer them in any cases in which network programming is part of a project. There is no price advantage in an Arduino, but there is a lot of disadvantage in limited debugging flexibility. | ||
== Project Progress and Images == | == Project Progress and Images == | ||
| Zeile 87: | Zeile 93: | ||
[[Image:2017-09-14-passivePoEInjector23.jpg|400px]] | [[Image:2017-09-14-passivePoEInjector23.jpg|400px]] | ||
[[Image:2017-09-14-passivePoEInjector24.jpg|400px]] | [[Image:2017-09-14-passivePoEInjector24.jpg|400px]] | ||
| + | |||
| + | Now with the NanoPi Neo2: | ||
| + | |||
| + | [[Image:2017-09-26-passivePoEInjector1.jpg|400px]] | ||
| + | [[Image:2017-09-26-passivePoEInjector2.jpg|400px]] | ||
| + | [[Image:2017-09-26-passivePoEInjector3.jpg|400px]] | ||
Version vom 26. September 2017, 22:55 Uhr
Inhaltsverzeichnis
1 Project Scope
My parents' house is widely equipped with Mikrotik routers and other passive PoE powered hardware. So a centralized power distrution seems reasonable. However, passive PoE injectors like the one from Intellinet have one considerable problem:
They use a powerful PSU, capable of delivering a high current to a single port in case of a short circuit on the cable, inevitably causing a fire.
So I wanted to have a PoE injector that has a per-port fuse, however with remote diagnostic capability on broken fuses, as I can always easily ask my parents to exchange a broken fuse. I was not ale to find such a device on the market, so I built it myself.
Additional features:
- Web Interface
- Current port switching status
- Fuse status
- Syslog interface for event reporting
- Switching events
- Fuse failure events
- External powering (24V) from UPS / Battery
2 Component List
- SanDisk Micro Secure Digital (Micro SD) Speicherkarte 2 GB: Amazon: 9 €
- NEUTRIK Cinch Einbaubuchse, sw, NF2D0: Amazon: 12 €
- Neutrik NE8FDP RJ45 Durchgangs-Einbaubuchse, vernickeltes D-Gehäuse: Amazon: 9 €
- ah 19" Parts 87407V 19" Leergehäuse 1 HE mit Lüftungsschlitzen: Amazon: 44 €
- Netzdrossel: 5 €
- 10x Sicherungshalter: 25 €
- 8x Feinsicherung 500mA: 5 €
- Feinsicherung 1A, Feinsicherung 6A, 1 €
- Schrumpfschlauch-Set: 15 €
- Lochraster-Platinen: 5 €
- Stiftleisten, Buchsenleiten: 15 €
- 8x Injektoren: 30 €
- Beleuchteter Hauptschalter: 3 €
- Kabelführungen, klebend: 15 €
- Kabelbinder: 5 €
- Netzteil Meanwell 24V 150W (6,5A) MW LRS-150F-24: 25 €
- 2x DC-DC-Spannungswandler: 10 €
- 14 Ringkerne: 15 €
- 8x bistabile Doppelrelais 5V: 80 €
- BME280 Sensor: 15 €
- Cinch Stromversorgungskabel: 5 €
- Kabelschuhe: 5 €
- 8x ACS712: 70 €
- 2x Gravitech 8 Channel ADC I2C: 20 €
- 20x R, 50 kOhm, 8x ZenerDiodes 4,5V: 5 €
- 1x PCF8575: 3 €
- 1x PCF8574: 3 €
- 1x Gravitech I2C-TRN: 10 €
- NanoPi Neo2
530 €
3 Progress and Experiences
Once again my experience hit me hard that Arduino type controllers are only really good if their usage is exclusively related to reading out values. They don't excel very much as web platforms. Given that they are rather big compared to those recent NanoPi Neo type minicomputers, I have taken the decision to prefer them in any cases in which network programming is part of a project. There is no price advantage in an Arduino, but there is a lot of disadvantage in limited debugging flexibility.
4 Project Progress and Images
Trying to get a rough picture of the layout of the components.
Now with the NanoPi Neo2:
