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103A_Interface_Specification_Feb67.pdf 2.12 MB 🧲
103E_103G_103H_Interface_Specification_Oct68.pdf 1.36 MB 🧲
103F_Interface_Specification_May64.pdf 1.71 MB 🧲
150_Baud_Private_Line_Channels_Interface_Specification_Feb68.pdf 4.41 MB 🧲
201A_201B_Interface_Specification_Sep62.pdf 1.46 MB 🧲
201A_201B_Interface_Specification_Supplement_2_Nov68.pdf 109.10 KB 🧲
201A_and_201B_Interface_Specification_Aug69.pdf 2.02 MB 🧲
202C_and_202D_Interface_Specification_May64.pdf 3.48 MB 🧲
203_Data_Set_Technical_Reference_Jun70.pdf 3.86 MB 🧲
301B_Interface_Specification_Mar67.pdf 532.63 KB 🧲
303_Wideband_Data_Stations_Technical_Reference_Aug66.pdf 3.10 MB 🧲
303_Wideband_Data_Stations_Technical_Reference_Supplement_1_Mar69.pdf 363.22 KB 🧲
40000_Bell_System_Technical_Reference_Catalog_Dec75.pdf 1.38 MB 🧲
41003_150_Baud_Private_Line_Channels_Interface_Specification_Sep75.pdf 3.36 MB 🧲
41104_Data_Set_113A_Interface_Specification_May69.pdf 2.12 MB 🧲
41401_Data_Sets_401A_and_401E_Apr66.pdf 1.76 MB 🧲
591-014-100_Data_Set_103A_Identification_and_Operation_Jan67.pdf 655.58 KB 🧲
591-014-200_Data_Set_103A_Installation_and_Connections_Jan67.pdf 422.87 KB 🧲
591-014-300_Data_Set_103A_Maintenance_Nov64.pdf 57.98 KB 🧲
591-014-500_Data_Set_103A_Test_Procedures_Dec67.pdf 582.27 KB 🧲
592-000-000_I69_Numerical_Index_Division_592_198101.pdf 750.93 KB 🧲
592-000-000_I71_Numerical_Index_Division_592_198109.pdf 751.15 KB 🧲
592-016-100_Data_Set_202D_Type_Transmitter-Receiver_Indentification_and_Operation_196404.pdf 2.78 MB 🧲
592-016-200_Data_Set_202D_Type_Transmitter-Receiver_Installation_196502.pdf 3.14 MB 🧲
592-016-300_Data_Set_202D_Type_Transmitter-Receiver_Maintenance_196404.pdf 561.08 KB 🧲
592-016-400_Data_Set_202D_Type_Transmitter-Receiver_Connections_196703.pdf 5.43 MB 🧲
592-016-500_Data_Set_202D_Transmitter-Receiver_Test_Procedures_196405.pdf 1.40 MB 🧲
592-016-500_Data_Set_202D_Transmitter-Receiver_Test_Procedures_196709.pdf 2.11 MB 🧲
592-017-102_Data_Set_205C2_Transmitter-Receiver_Indentification_and_Operation_196704.pdf 1.70 MB 🧲
592-017-152_Data_Set_205C_Type_Transmitter-Receiver_Supplemental_Informtion_196605.pdf 3.72 MB 🧲
592-017-202_Data_Set_205C2_Transmitter-Receiver_Installation_Instructions_196704.pdf 300.83 KB 🧲
592-017-302_Data_Set_205C2_Transmitter-Receiver_Maintenance_196704.pdf 146.98 KB 🧲
592-017-502_Data_Set_205C2_Transmitter-Receiver_Test_Procedures_196704.pdf 1.36 MB 🧲
801A_Automatic_Calling_Unit_Interface_Specification_Mar64.pdf 951.54 KB 🧲
801C_Automatic_Calling_Unit_Interface_Specification_Sep65.pdf 2.03 MB 🧲
Bell_Modem_Types_Oct69.pdf 1.07 MB 🧲
Data_Access_Arangement_Preliminary_Technical_Reference_Nov68.pdf 1.17 MB 🧲
PUB4000_Bell_System_Technical_Reference_Catalog_May72.pdf 2.13 MB 🧲
X303A_Wideband_Data_Stations_Preliminary_Interface_Specification_Oct64.pdf 1.90 MB 🧲