Nortel Networks 311 NTAK792.0 Mb PRI card 923, NTAK93D-channel Handler Interface daughterboard 953, NTBK22 MISP card 961, NTBK50 2.0 Mb PRI card 967, NTBK51 Downloadable D-channel Handler daughterboard 989, NTCK16 Generic Central Ofce Trunk cards 1001, NTDK20 Small System Controller card 1017

Contents 9
Physical description 909
Functional description 910
NTAK792.0 Mb PRI card 923
Contents 923
Introduction 923
Physical description 924
Functional description 932
Architecture 933
NTAK93D-channel Handler Interface daughterboard 953
Contents 953
Introduction 953
Physical description 955
Functional description 956
NTBK22 MISP card 961
Contents 961
Introduction 961
Physical description 961
Functional description 962
NTBK50 2.0 Mb PRI card 967
Contents 967
Introduction 967
Physical description 968
Functional description 973
Architecture 975
NTBK51 Downloadable D-channel Handler daughterboard 989
Contents 989
Introduction 989
Physical description 990
Functional description 992
Download operation 996
NTCK16 Generic Central Office Trunk cards 1001
Contents 1001
Introduction 1001
Physical description 1002
Functional description 1003
Operation 1003
Electrical specifications 1005
Connector pin assignments 1006
Configuration 1006
Applications 1013
NTDK20 Small System Controller card 1017
Contents 1017
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23May 2008
Copyright© 2003-2008, Nor tel Networks
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