Check tension: Check EGF-1 strain on terminals 2 and 6 (12V DC). If correct, check the terminals 2 and 4 (10V DC) and terminals 2 and 5 (10V DC) with the hook. If we give these tensions see if between 2 and 4 d (2V DC) and between 2 and 5 (0V DC), there may be a telephone in the facility that does not hang well parts porter cable. Then check the voltages by disconnecting the cables 4 and 5 of the EGF-1 and see if we recover the correct voltages of 10V DC. See installation diagram. Disconnect the wires 4 and 5 of the EGF-1 and place a universal phone connecting terminals 2, 4 and 5 to the same EGF-1 parts porter cable. If it works will have to verify the installation. You're welcome. You know that if you need information about Tegui doorphones you can go to the blog and if you do not find us asking parts porter cable. You can use these HTML tags and attributes:. . Summary: In 1980 Michael parts porter cable developed this method of analysis to discover what factors determine the profitability of an industry and its companies parts porter cable. For Porter, there are 5 different types of forces that make the success or failure of an industry or a company just Michael E. parts porter cable in his book Competitive Strategy: Techniques for Analyzing Industries and Competitors, provides as noted, five forces that determine the consequences of long-term profitability of a market or some segment of it. The idea is that the corporation should evaluate their objectives and resources against these five forces driving industry competition parts porter cable. SlideShare is the world's largest community for sharing presentations. Upload and share on blogs, Twitter, Facebook or LinkedIn. Over 60 million people use SlideShare Every month for research, sharing ideas, Connecting with Others, and Generating business leads parts porter cable. Also Supports SlideShare documents, PDFs, and videos. .