2 ms·
> Anyone who operates these devices knows to reduce the load first. How? This is a system for remotely opening a circuit. The user can’t reduce the load first
by amluto 3y ago
> Anyone who operates these devices knows to reduce the load first.
How? This is a system for remotely opening a circuit. The user can’t reduce the load first. At best they can (likely with too much latency to be at all reliable) wait for the meter to report a small load.
- diydsp 3y agoBy remote is meant only a few feet. The intended user can switch off or unplug the load in person then operate the meter.
- krisoft 3y ago> By remote is meant only a few feet. How does it enforce that? Is it just based on signal strength? > The intended user can switch off or unplug the load in person then operate the meter. This is just the wrong way to think about it. The "intended user" is all nice, but what can an attacker do? That is how these problems need to be analysed.
- amluto 3y agoI regret to inform you that remote means from the office. These meters use a mesh network to report usage and receive instructions from the utility’s central systems. If a technician were on site, they could physically remove the meter or open the main breaker.