Electrical specifications 1005Electrical specificationsPower requirementsTable 421 "NTCK16 circuit card power requirements" (page 1005) showsthe power requirements for the NTCK16AX and NTCK16BX generic CentralOffice trunk cards.Table 421NTCK16 circuit card power requirementsVoltage Idle Current Active current+15.0 V dc(See 1)170 ma 330 ma-15.0 V dc(See 1)170 ma 249 ma+8.5 V dc(See 2)101 ma 100 ma+5.0 V dc 160 ma 322 maNote 1: Analog circuitry is powered with +/-12 V generated from +/-15V. The maximum current imbalance between the +/-15 V rails is 100ma per circuit pack.Note 2: 8.5V is regulated to give 5 V.Environmental specificationsTable 422 "NTCK16 circuit card environmental specifications" (page1005) lists the environmental specifications of the NTCK16AX andNTCK16BX generic Central Office trunk cards.Table 422NTCK16 circuit card environmental specificationsParameter SpecificationsOperating temperature 10 to 45 degrees COperating humidity 20 to 80% RH (non-condensing)Storage temperature –20 to +60 degrees CStorage humidity 5 to 95% Relative HumidityPad switchingThe NTCK16AX and NTCK16BX generic Central Office trunk cards supportthe North American loss plan. Software configuration allows the selection of4 dB loss pads on a per unit basis.Nortel Communication Server 1000Circuit Card ReferenceNN43001-311 01.04 StandardRelease 5.0 23 May 2008Copyright © 2003-2008, Nortel Networks.