| Parent directory/ | - | - |
| 150_Baud_Private_Line_Channels_Interface_Specification_Feb68.pdf | 4.4 MiB | 2014-07-19 00:11Z |
| 203_Data_Set_Technical_Reference_Jun70.pdf | 3.9 MiB | 2014-11-14 16:37Z |
| 202C_and_202D_Interface_Specification_May64.pdf | 3.5 MiB | 2014-07-19 00:10Z |
| 41003_150_Baud_Private_Line_Channels_Interface_Specification_Sep75.pdf | 3.4 MiB | 2015-04-24 23:43Z |
| 303_Wideband_Data_Stations_Technical_Reference_Aug66.pdf | 3.1 MiB | 2014-11-14 16:37Z |
| PUB4000_Bell_System_Technical_Reference_Catalog_May72.pdf | 2.1 MiB | 2014-07-18 23:26Z |
| 41104_Data_Set_113A_Interface_Specification_May69.pdf | 2.1 MiB | 2015-04-24 23:43Z |
| 103A_Interface_Specification_Feb67.pdf | 2.1 MiB | 2014-07-19 00:10Z |
| 801C_Automatic_Calling_Unit_Interface_Specification_Sep65.pdf | 2.0 MiB | 2014-11-14 16:38Z |
| 201A_and_201B_Interface_Specification_Aug69.pdf | 2.0 MiB | 2014-07-19 00:10Z |
| X303A_Wideband_Data_Stations_Preliminary_Interface_Specification_Oct64.pdf | 1.9 MiB | 2014-11-14 16:38Z |
| 41401_Data_Sets_401A_and_401E_Apr66.pdf | 1.8 MiB | 2015-04-24 23:43Z |
| 103F_Interface_Specification_May64.pdf | 1.7 MiB | 2014-07-19 00:10Z |
| 201A_201B_Interface_Specification_Sep62.pdf | 1.5 MiB | 2014-11-14 16:37Z |
| 40000_Bell_System_Technical_Reference_Catalog_Dec75.pdf | 1.4 MiB | 2015-04-24 23:42Z |
| 103E_103G_103H_Interface_Specification_Oct68.pdf | 1.4 MiB | 2014-11-14 16:37Z |
| Data_Access_Arangement_Preliminary_Technical_Reference_Nov68.pdf | 1.2 MiB | 2014-11-14 16:38Z |
| Bell_Modem_Types_Oct69.pdf | 1.1 MiB | 2014-11-14 16:38Z |
| 801A_Automatic_Calling_Unit_Interface_Specification_Mar64.pdf | 951.5 KiB | 2014-11-14 16:37Z |
| 591-014-100_Data_Set_103A_Identification_and_Operation_Jan67.pdf | 655.6 KiB | 2014-11-14 16:37Z |
| 591-014-500_Data_Set_103A_Test_Procedures_Dec67.pdf | 582.3 KiB | 2014-11-14 16:37Z |
| 301B_Interface_Specification_Mar67.pdf | 532.6 KiB | 2014-11-14 16:37Z |
| 591-014-200_Data_Set_103A_Installation_and_Connections_Jan67.pdf | 422.9 KiB | 2014-11-14 16:37Z |
| 303_Wideband_Data_Stations_Technical_Reference_Supplement_1_Mar69.pdf | 363.2 KiB | 2014-11-14 16:37Z |
| 201A_201B_Interface_Specification_Supplement_2_Nov68.pdf | 109.1 KiB | 2014-11-14 16:37Z |
| 591-014-300_Data_Set_103A_Maintenance_Nov64.pdf | 58.0 KiB | 2014-11-14 16:37Z |