RPS is the only option. From datasheet... Optional External Redundant Power Supply (RPS) â The Cisco 2911, 2921, and 2951 allow for power redundancy through the use of an external RPS device, thereby decreasing network downtime and protecting the network from power-supply failures.
This was an exorbitant sum in the late 1800s and early 1900s. Three thousand dollars in 1900 is worth over $70,000 in todayâs dollars. The 1903 âcurved dashâ chain driven Oldsmobile was much more modestly priced at $650.Then Henry Ford came along and made a car that was âaffordable to the massesâ when he introduced the Model T in 1908 at a cost of $850. At the time, this amount was $1,200 less than most other cars.ecords are sketchy if not nonexistent and 'lost to time.' But, as with any new technology, the first cars were EXTREMELY expensive and affordable only by the very wealthy. In most cases, the earliest production cars available to the public were limited production and cost thousands of dollars.
More than half the world's cars were nearly identical Model T's during the mid 1920s. The car was introduced with a price tag of $850. The Model T later sold for as little as $260, because Ford passed along the savings from his production innovations. The car that established a mass market for automobiles, the Model T, was introduced on Oct. 1, 1908. The first Model T had a 20-horsepower, four-cylinder engine, reached a top speed of about 45 miles per hour, got about 13 to 21 miles per gallon of gasoline and weighed 1,200 pounds. It was the ninth of Henry Ford's production cars. More than 15,000,000 Model T's were built and sold.