Configuring ISDN BRI trunking with IP expansion cabinets or MG 1000S systems 55Table 13 "Hardware requirements for ISDN BRI trunking" (page 55) lists thehardware required to configure ISDN BRI trunking.Table 13Hardware requirements for ISDN BRI trunkingHardware Product code DescriptionMISP circuit card NTBK22 The MISP card (NTBK22) is specific to SmallSystems and CS 1000S systems. It performs DataLink (Layer 2) and Network (Layer 3) processingassociated with the OSI protocol.SILC circuit card NT6D70AANT6D70BA-48V North American S/T interface line card-40V International S/T interface line cardUILC circuit card NT6D71 U interface line cardA clock controller is required in every cabinet or Media Gateway 1000S(MG 1000S) equipped with a digital trunk card.Clock controllerNTAK20ABNTAK20BBStratum 3 clock controller daughterboardStratum 4 clock controller daughterboardRequired for conversion from a U to and S/T interface.Network terminationISDN network termination unit (NT1), including NT1standard power supply. Two cables are providedwith the NT1 power supply unit:•178 mm (7 in.) cable for connection between thepower supply and the NT1 unit•captive power cord for connection to an ACpower outletConfiguring ISDN BRI trunking with IP expansion cabinets or MG1000S systemsConfigure the MISP card slot number for ISDN BRI trunking in LD 27. Referto Table 14 "Correct responses to LOOP and MISP prompts in LD 27" (page56) for the correct response to the LOOP prompt.Nortel Communication Server 1000ISDN Basic Rate Interface Installation and CommissioningNN43001-318 01.02 StandardRelease 5.0 20 June 2007Copyright © 2003-2007, Nortel Networks.