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field video quality is equal to the observations made at the Node. The test equipment present at the Headend seemed adequate to provide valid test data requested. The Headend combiner output signal levels maintained a flat frequency spectrum that represented a well -tuned RF output. Time Warner has provided two new fiber links to address video quality issues previously noted in earlier tests. The Santa Ana City Hall now has a dedicated fiber feed as well as the Santa Ana College channel. Both of the fiber feeds originate from the Second Street Node greatly improving the video quality and have satisfied the concerns of the city. The observed picture quality was very good with no exceptions. 6.2 Auxiliary Headend Powering The auxiliary power being delivered in the La Mirada headend, is a dual backup generator running in redundancy mode for much more extensive fault recovery because this Headend serves video for multiple cities that includes Santa Ana. The Santa Ana Second St. Node is auxiliary powered by a 75KW Diesel backup Generator and a UPS system. 6.3 Standby Power Supplies The Time Warner's long-term plan to install status -monitoring equipment into the power supply for more proactive monitoring is finally underway. Currently, Time Warner is installing the status monitoring modules in all power supplies and pending the software configuration and installation to complete the project. Estimated completion time is slated for 2009. The 60 -volt commercially fed power supplies in the field provide system powering. These units have a battery backup that depending on the draw from the unit, powering the system for up to two hours should commercial power fail. In light of the on-going probability of natural disasters in southern California, standby power supplies are an essential component of a cable system's emergency operation capacity. Time Warner has replaced their old power supplies with new Alpha systems power supplies. This will allow Time Warner to become more pro -active and minimize downtime in outage situations. Time Warner runs tests on all of the power supply units on a quarterly basis. 6.4 Residential Network As noted earlier, distribution system testing was done in two phases. The first of these tests were performed by Time Warner in February 2008 and the second phase of testing was performed on July 24th and July 25th Communications Support Group, VP RPT2008.001 Page 6