1066 NTRB21 DTI/PRI/DCH TMDI cardFigure 304NTRB21 TMDI card faceplateNote 1: For CISPR B group cabinets, the active Clock Controller(NTAK20) can only occupy slots 1-3. For FCC and/or CISPR A groupcabinets, this limitation does not exist - the Clock Controller can occupyany available slot 1-9.Note 2: The NTRB21 TMDI card requires that the Option 11C be loadedwith at least Release 24 software. If an Option 11C switch is loadedwith Release 24 (or later) software, the NTRB21 can be equippedtogether with the NTAK09 DTI/PRI card (with the NTBK51 downloadableD-channel daughterboard).Nortel Communication Server 1000Circuit Card ReferenceNN43001-311 01.04 StandardRelease 5.0 23 May 2008Copyright © 2003-2008, Nortel Networks.
