The platinum group metals collectively and in any combination of platinum, palladium, rhodium, ruthenium, osmium, and iridium. Reference to PGM grades for the company's operations mean measured quantities of palladium and platinum only.
Pragmatic General Multicast. A protocol layer that can be used between the IP layer and the multicast application on sources, receivers, and routers to add reliability, scalability, and efficiency to multicast networks.
This is a programmable output available on many control panels. It acts like a light switch. If it were programmed for Bell, which would mean that, when the bell box is activated, it would switch on whatever is connected to it, e.g. trigger a relay to activate floodlights or cameras.