| Section
| Date
| Issue
| Size
| Title
|
| 240-000-000 | 1974-12-01 | 91 | 157.87 KB | Numerical Index - Division 240 - No. 101 Electronic Switching System (ESS) |
| 240-100-101 | 1966-01-01 | 2 | 757.22 KB | Switching Plan and Control Principles - Description of System Operation - No. 101 Electronic Switching System |
| 240-101-101 | | 1I | 3.39 MB | 200-Line Switch Unit - Description of System Operation - No. 101 Electronic Switching System |
| 240-101-103 | 1968-08-01 | 1 | 14.53 MB | 3A Switch Unit - Description of System Operation - No. 101 Electronic Switching System |
| 240-101-104 | 1968-02-01 | 2 | 732.24 KB | 4A Switch Unit - Description of System Operation - No. 101 Electronic Switching System |
| 240-102-101 | 1966-01-01 | 2I | 1.28 MB | Data Transmission - Description of System Operation - No. 101 Electronic Switching System |
| 240-103-101 | | 1I | 1.84 MB | Digit Reception at Control Unit - Description of System Operation - No. 101 Electronic Switching System |
| 240-104-101 | | 1I | 974.86 KB | Control Unit Stores - Description of System Operation - No. 101 Electronic Switching System |
| 240-105-101 | 1966-01-01 | 2I | 2.08 MB | Data, Digit, and Sender Controls - Description of System Operation - No. 101 Electronic Switching System |
| 240-106-101 | | 1 | 2.92 MB | Call Processor - Description of System Operation - No. 101 Electronic Switching System |
| 240-107-101 | 1969-01-01 | 2 | 1.97 MB | Central Office and Tie Trunk Circuits - Description of System Operation - No. 101 Electronic Switching System |
| 240-108-101 | | 1 | 5.53 MB | Maintenance Circuits - Description of System Operation - No. 101 Electronic Switching System |
| 240-109-101 | | 1 | 4.76 MB | Call Programs - Description of System Operation - No. 101 Electronic Switching System |
| 240-110-101 | | 1 | 3.64 MB | Maintenance Programs - Description of System Operation - No. 101 Electronic Switching System |
| 240-201-201 | 1965-08-01 | 2 | 2.18 MB | J1H011A Switch Unit - Identification and Installation - No. 101 Electronic Switching System |
| 240-202-201 | 1964-04-01 | 2 | 1.38 MB | J1H011A Switch Unit - Connections - No. 101 Electronic Switching System |
| 240-204-201 | 1964-05-01 | 1 | 429.37 KB | Attendant Equipment Connections - No. 101 Electronic Switching System |
| 240-204-202 | 1965-09-01 | 1 | 1005.25 KB | J1H011A Switch Unit Attendant Equipment - Attendant Direct Station Selection - Installation and Connection - No. 101 Electronic Switching System |
| 240-207-201 | 1967-11-01 | 2 | 808.11 KB | 1A Switch Unit - Miscellaneous Equipment (4-Wire Trunk Circuit, Attendant Conference or Conference Calling Circuit, 3A Code Call Unit Trunk, Paging Trunk, Recorded Telephone Dictation Trunk, DID Answering Machine Circuit, Transmission Test Line Circuit, and Additional Power Failure Station Circuits) - Identification, Installation, and Connections - No. 101 Electronic Switching System |
| 240-208-201 | 1964-06-01 | 1 | 78.73 KB | Switch Unit - Service Options - Method of Providing - No. 101 Electronic Switching System |
| 240-209-201 | 1964-11-01 | 1 | 129.52 KB | J1H011A Switch Unit - Tests and Inspections at Time of Installation - No. 101 Electronic Switching System |
| 240-226-501 | 1966-03-01 | 3 | 450.30 KB | J1H011A Switch Unit - Manual Tests - No. 101 Electronic Switching System |
| 240-226-502 | 1967-12-01 | 1 | 180.27 KB | 1A Switch Unit - Leakage Test of 443A (PNPN) Diodes - No. 101 Electronic Switching System |
| 240-227-501 | 1965-01-01 | 1 | 129.28 KB | J1H011A Switching Unit Data Receiver Circuit - Tests Using 124A Test Set SD-1H070-01 - No. 101 Electronic Switching System |
| 240-228-501 | 1965-01-01 | 1 | 538.02 KB | J1H011A Switching Unit Data Distributor Circuit - Tests Using 124A Test Set SD-1H070-01 - No. 101 Electronic Switching System |
| 240-229-501 | 1965-01-01 | 1 | 140.54 KB | J1H011A Switch Unit Clock Circuit - Tests Using 124A Test Set SD-1H070-01 - No. 101 Electronic Switching System |
| 240-230-501 | 1965-01-01 | 1 | 500.95 KB | J1H011A Switch Unit Switch Store Circuit - Tests Using 124A Test Set SD-1H070-01 - No. 101 Electronic Switching System |
| 240-231-501 | 1965-01-01 | 1 | 202.32 KB | J1H011A Switch Unit Ring-Ringback Logic Circuit - Tests Using 124A Test Set SD-1H070-01 - No. 101 Electronic Switching System |
| 240-232-501 | 1965-01-01 | 1 | 980.52 KB | J1H011A Switch Unit Line Number Translator Circuit - Tests Using 124A Test Set SD-1H070-01 - No. 101 Electronic Switching System |
| 240-233-501 | 1965-01-01 | 1 | 634.63 KB | J1H011A Switch Unit Attendant Number Translator Circuit - Tests Using 124A Test Set SD-1H070-01 - No. 101 Electronic Switching System |
| 240-234-501 | 1965-03-01 | 1 | 1.71 MB | J1H011A Switch Unit Attendant Circuit - Tests Using 124A Test Set SD-1H070-01 - No. 101 Electronic Switching System |