Vol. II-1-18 Harris Stratex NetworksChapter 1. System OverviewPower SupplyEclipse is designed to operate from a -48 Vdc power supply (+ve earth) but will operateto specification over a voltage range of -40.5 to -60 Vdc.The dc power supply must be UL or IEC compliant for a -48 Vdc SELV (Safety ExtraLow Voltage) output (60 Vdc maximum limited).Platform Layout and Interoperation Data300 Series IDUsThe table below describes the IDU 300 series platform support for non-protected andprotected operation, ODU options, and capacity and modulation.Table 1-5, “Eclipse 300 Series IDU and ODU Parameters,” on page 20 summaries IDU/ODU options and over-air compatibility.To view detailed compatibility data for the IDU GE 20x, see IDU GE 20x Compatibilityon page 1-21.Protected IDUs cannot be used to link to an INU/INUe. Where protectedIDUs are to be used they must be installed at both ends of the link.Table 1-4. 300 Series PlatformsIDU CharacteristicsIDU 300sp 4x • Requires ODU 300sp or ODU 300hp• QPSK modulation only• Non-protected operation• Cannot be linked to Eclipse Node• Includes auxiliary data (sync only)IDU 300sp 16x • Requires ODU 300sp or ODU 300hp• QPSK modulation only• Non-protected or hot-standby• Cannot be linked to Eclipse Node• Includes auxiliary data (sync only)