61203019L1-1 NT1 ACE User Manual 13NT1 ACE User ManualFaceplate IndicatorsERROR .................. U-interface or S/T interface not readyREADY .................. Steady light - Network ready to place a call8 Hz (faster) flashing - U-interface not ready1 Hz (slower) flashing - S/T interface not readyPOWER ................ Unit has powerNetwork CompatibilityInterface ................ ISDNMechanicalSize...................... 6.25" wide, 3.75" long, 1.35" highWeight ................. 9.5 ouncesMounting............... Wall or desktopPower-48 VDC................ 1.1 W dissipationSources S/T power up to 8.9 WEnvironmentalTemperature .......... 0 to 40 °C (32 to 104 °F) operating-20 to 70 °C (-4 to 158 °F) storageRelative Humidity.... Up to 95%, non-condensingFCC Approval........ Part 15, Class BPower Supply SpecificationsSize............................ 2.5“wide, 3.0" long, 1.9" highWeight ....................... 1.5 lbPower Input ................. 110 VAC, 60 HzPower Output............... 10 WVoltage ....................... -48 VDC