Supernode 2
Last updated April 8, 2019 by Brian
⚠️ Supernode 2 is no longer active. The sector antennas were moved to Soft Surplus ⚠️
Supernode 2 (node 570) was located at 1196 Metropolitan Avenue in Brooklyn New York. On October 7th, 2018 it was taken down due to roof repair.
The information below is a point of reference for how supernode 2 was configured.
Status
Coverage
Photos
Hardware
| Description | Model | Manufacturer | Quantity |
|---|---|---|---|
| Router | Hex PoE | Mikrotik | 1 |
| Point-to-point radio | AirFiber 24 | UBNT | 1 |
| Point-to-point radio | Nanobeam AC | UBNT | 1 |
| Wide area AP | LiteAP 120 | UBNT | 2 |
| Indoor AP | UniFi AP | UBNT | 1 |
| Application server | Raspberry Pi | RPi Foundation | 1 |
| Inverter/Charger/ATS | APS700HF | Tripp Lite | 2 |
| Battery | EXP12180 | ExpertPower | 1 |
Schematic
Backhaul
A pair of AirFiber 24s was donated to NYC Mesh and was deployed between 227 and 570 to provide Brooklyn with a near 1Gbps backhaul link to Supernode 1, the Manhattan area of the mesh and the internet.
Battery backup
Shortly after initial installation we noticed the node would go down on a somewhat regular basis. After some investigation and discussion with building residents, the culprit was revealed to be a circuit breaker being tripped by power hungry air conditioners. To insulate the node against short power outages like this we built a simple backup power system out of a 12 volt battery and integrated inverter / charger / automatic transfer switch.
Routing
570 currently uses BGP to exchange routes with its mesh peers. We hope to upgrade this node to support more dynamic routing protocols soon.