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<br />'. <br /> <br />'- <br /> <br />EJC:mb(33) <br />3/06/89 <br /> <br />EXHIBIT "D" <br /> <br />INSTITUTIONAL NETWORK (" I-NET") <br />"B" CABLE <br />MINIMUM PERFORMANCE STANDARDS <br />AND <br />MAINTENANCE REQUIREMENTS <br /> <br />PERFORMANCE STANDARDS FOR VIDEO AND AUDIO TRANSMISSIONS <br /> <br />The following minimum performance standards shall be achieved by <br />the Operator for I-NET transmissions of video or audio from any <br />origination point on the I-NET to any delivery point on the 1- <br />NET. For the purposes of this section, the terms "origination <br />point," "delivery point," and "termination" shall include an <br />interconnection point with the subscriber cable network in Santa <br />Ana, designated by franchise as the "AI" cable. If not specifi- <br />cally mentioned to the contrary, performance standards apply in <br />both the forward and reverse direction. When not specifically <br />mentioned and modified below, all other State, and Federal tech- <br />nical standards governing the operation of cable television <br />systems shall apply. <br /> <br />Forward minimum signal level at subscriber terminal input <br />connector shall be no less than 3dB greater than the minimum <br />input level specified by the subscriber terminal equipment <br />manufacturer, but shall in no case be less than the minimum video <br />signal level required at the subscriber terminals, referenced to <br />a 75 ohm termination, as may be defined by the FCC in 47 CFR 76 <br />Subpart K. <br /> <br />Reverse minimum signal level from the output of the subscriber <br />terminal, if any, shall comply with the following minimum <br />requirements: <br /> <br />1. <br /> <br />The subscriber terminal carrier output level to the <br />input of the Operator's plant shall be adjusted to <br />operate within the subscriber terminal manufacturer's <br />recommended operating window, and <br /> <br />2. <br /> <br />The subscriber terminal carrier output level shall be <br />sufficient to produce the minimum input level required <br />by the manufacturer of the Operator's amplifier <br />manufacturer as defined in the amplifier manufacturer's <br />specification sheet(s). <br /> <br />Carrier-to-noise ratio at termination <br /> <br />no less than 42 dB <br /> <br />Third order beats <br /> <br />-52 dB or less <br /> <br />-l- <br />