Personnel Procurement Army Retention Program *Army Regulation 601â280 Effective 28 February 2006 History. This publication is a rapid action revision (RAR). This RAR is effective 20 September 2011. The portions affected by t h i s R A R a r e l i s t e d i n t h e s u m m a r y o f change. Summary. This regulation prescribes the
Building Entrance Protector. New Tech Industries features building entrance protectors from Circa, Porta Systems, LEA Networks and TII. Building entrance protectors or building entrance terminals are used to protect telecom and datacom equipment from over voltage situations.1  1 Pin Modules. 2  6 Pair. 3  12 Pair.4  25 Pair.5  50 Pair. 6  100 Pair. 7  200 Pair. 8  5 Pin Modules. 9  Category 5E. 10  Category 6. 11  Central Office. 12  Testers.uilding entrance protectors or building entrance terminals are used to protect telecom and datacom equipment from over voltage situations. 1  1 Pin Modules. 2  6 Pair. 3  12 Pair. 4  25 Pair. 5  50 Pair. 6  100 Pair. 7  200 Pair. 8  5 Pin Modules. 9  Category 5E. 10  Category 6. 11  Central Office. 12  Testers.
What are 'Barriers To Entry' Barriers to entry are the existence of high startup costs or other obstacles that prevent new competitors from easily entering an industry or area of business. Barriers to entry benefit existing firms already operating in an industry because they protect an established company's revenues and profits from being whittled away by new competitors. Common barriers to entry include special tax benefits to existing firms, patents, strong brand identity or customer loyalty, and high customer switching costs.