Electrical specifications 187The Lineside T1 card requires +15 V, –15 V, and +5 V from the backplane.One NT8D06 Peripheral Equipment Power Supply ac or NT6D40 PeripheralEquipment Power Supply dc can supply power to a maximum of eightLineside T1 cards.Table 83Lineside T1 card - power requiredVoltage Current (max.)+ 5.0 V dc 1.6 Amp+15.0 V dc 150 mA.–15.0 V dc 150 mA.The Lineside T1 card obtains its power from the Option 11C’s backplane.Table 84Lineside T1 card: power requiredVoltage Current (max.)5.0 V dc 150 mA.+15.0 V dc 1.6 Amp-15.0 V dc 1.3 AmpForeign and surge voltage protectionsIn-circuit protection against power line crosses or lightning is not providedon the Lineside T1 card. It does protect against accidental shorts to –52 Vdc analog lines.When the card is used to service off-premise terminal equipment throughthe public telephone network, install a Channel Service Unit (CSU) as partof the terminal equipment to provide external line protection.In-circuit protection against power line crosses or lightning is not providedon the Lineside T1 card. It does protect against accidental shorts to –52 Vdc analog lines.When the card is used to service off-premise terminal equipment throughthe public telephone network, install a Channel Service Unit (CSU) as partof the terminal equipment to provide external line protection.Environmental specificationsTable 85 "Lineside T1 card - environmental specifications" (page 188) liststhe environmental specifications of the Lineside T1 card.Nortel Communication Server 1000Circuit Card ReferenceNN43001-311 01.04 StandardRelease 5.0 23 May 2008Copyright © 2003-2008, Nortel Networks.
