61200060L1-1 TSU User Manual Index-1IndexSymbols(NI) Network Interface 1-6Numerics1 in 8, test pattern 1-143 in 24, test pattern 1-13511, test pattern 1-14AAll Ones, test pattern 1-13Application 1-14Arrows, Menus 3-3CChain Out 2-4Chain Port Output 1-6Configuration MenuOverview 3-7Control In/Chain In 2-3Control Port Input 1-6Customer Service viiCustomer Service, Warranty viiDData Field 3-3display only 3-5Display Field 3-3DTEInterface Loopbacks 1-13DTE data rate chart B-1DTE Loopback 1-13DTE Timed 1-9Eexit menu operation 3-5Extended Superframe 1-1Ffactory default 3-24Far End Loop Back Test 4-1Federal Communications Commis-sion Radio Frequency InterferenceStatement vFractional T1 1-2Front PanelDisplays 3-2LED Identification 3-2IInternal Timing 1-10LLED Identification 3-2Line Loopback 1-12Loopback Tests 1-11MMenuMenu Functions 3-7Operation 3-3NNetwork (NI)Performance Data 3-10Network Interface 1-6