These modules, sold in pairs, communicate serially without extra wires or cables. With a DB-9 serial port on one side and a 110/220V power cable slot on the other, they transmit and receive high-frequency signals over power lines using high-pass filters, all with low h.f. output to keep from interfering with electric power on the network. They can transmit data to 500 m at up to 230 kbps, with 56-bit DES data encryption for RS232 signals. The modules are based on a 32-bit RISC processor with 8 MB SDRAM and 4 MB flash memory. They work on 110V or 220V supplies, have built-in surge protectors, and are DTE/DCE selectable.
Days after a massive, distributed denial-of-service attack took down dozens of major websites around the country, ARM Holdings plc is rolling out a pair of new processor architectures aimed at shoring up IoT security.
Dow Chemical and several other companies have launched a program in Omaha, Neb. to divert about 36 tons of plastics from landfills in its first phase, and convert it into energy used for cement production.
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