| Section
| Date
| Issue
| Size
| Title
|
| 590-000-000 | 1980-03-01 | 15 | 163.10 KB | Numerical Index - Division 590 - Data Systems - General Information |
| 590-000-000 | 1983-04-01 | 26 | 170.55 KB | Numerical Index - Division 590 - Data Systems - General Information |
| 590-000-101 | 1969-01-01 | 1 | 244.21 KB | Reference Guide - Description of Data Set Features and Options |
| 590-000-102 | 1975-04-01 | 3 | 1.07 MB | Data Service - Reference Guides - Cross-Reference Information |
| 590-000-110 | 1973-01-01 | 1 | 357.65 KB | 1000A Data Coupler - Reference Guide |
| 590-000-111 | 1976-04-01 | 3 | 523.69 KB | Data Services - Data Access Arrangement USOC CBS Provided by 1001A and 1001F Data Couplers - Reference Guide |
| 590-000-112 | 1976-04-01 | 2 | 495.47 KB | Data Services - Data Access Arrangement USOC CBT Provided by 1001B and 1001D Data Couplers - Reference Guide |
| 590-001-103 | 1969-03-01 | 1 | 335.74 KB | Data Set 103E-Type - Reference Guide |
| 590-001-104 | 1971-11-01 | 2 | 331.08 KB | Data Set 103F-Type - Reference Guide |
| 590-001-107 | 1973-05-01 | 1 | 517.06 KB | Data Set 108-Type Used with Voice Grade Circuits - Reference Guide |
| 590-001-108 | 1973-04-01 | 2 | 291.89 KB | Data Set 113A-Type - Reference Guide |
| 590-001-109 | 1971-10-01 | 1 | 694.71 KB | 113-Type Data Station - Reference Guide |
| 590-002-100 | 1974-04-01 | 2 | 938.87 KB | Data Services - 2000 and 2400 BPS Provided by Data Set 201-Type - Reference Guide |
| 590-002-101 | 1976-12-01 | 1 | 441.13 KB | Data Service Up to 1200 BPS on the Switched Network Provided by Data Set 202S-Type - Reference Guide |
| 590-002-110 | 1976-09-01 | 3 | 622.56 KB | 4800-Bit Per Second (BPS) Service Using Data Set 208-Type - Reference Guide |
| 590-002-115 | 1974-10-01 | 1 | 546.46 KB | 9600-Bits Per Second (BPS) Service Using Data Set 209A-L1 - Reference Guide |
| 590-004-100 | 1974-10-01 | 2 | 483.79 KB | Data Services - Parallel Data Transmission Up to 20 Charaters Per Second Provided By Data Sets 401-Type - Reference Guide |
| 590-004-104 | 1971-03-01 | 2 | 528.02 KB | Data Set 402A-Type and Data Set 402C-Type - Reference Guide |
| 590-004-105 | 1969-02-01 | 1 | 253.10 KB | Data Set 402D-Type - Reference Guide |
| 590-004-107 | 1969-08-01 | 1 | 250.82 KB | Data Set 401L-Type - Reference Guide |
| 590-004-109 | 1975-09-01 | 2 | 513.92 KB | 407-Type Multiple Data Station - Reference Guide |
| 590-005-100 | 1975-01-01 | 1 | 509.49 KB | Data Service Unit and Channel Service Unit for DATAPHONE Digital Service - Private Line - Reference Guide |
| 590-006-100 | 1969-03-01 | 1 | 195.16 KB | Data Set 601-Type - Reference Guide |
| 590-006-101 | 1975-01-01 | 3 | 403.11 KB | Data Set 602C-Type - Reference Guide |
| 590-006-102 | 1969-02-01 | 1 | 301.85 KB | Data Sets 603A-Type and 603D - Reference Guide |
| 590-006-103 | 1970-09-01 | 2 | 301.25 KB | Data Set 603B-Type - Reference Guide |
| 590-006-104 | 1971-08-01 | 2 | 257.38 KB | Data Set 604A-Type - Reference Guide |
| 590-006-105 | 1971-07-01 | 2 | 356.42 KB | Data Set 604B-Type - Reference Guide |
| 590-006-106 | 1969-10-01 | 1 | 260.90 KB | Data Set 602D-Type - Reference Guide |
| 590-008-100 | 1970-06-01 | 2 | 481.93 KB | Data Auxiliary Set 801A-Type - Reference Guide |
| 590-008-101 | 1971-07-01 | 2 | 684.05 KB | Data Auxiliary Set 801C-Type - Reference Guide |
| 590-008-102 | 1973-07-01 | 2 | 324.72 KB | Data Auxiliary Set 804A-Type - Reference Guide |
| 590-008-103 | 1977-08-01 | 1 | 323.73 KB | Data Auxiliary Set 801C List-Type - Reference Guide |
| 590-010-200 | 1974-05-01 | 4 | 1.55 MB | Data Sets and Data Access Arrangements - General Installation and Connection Information |
| 590-010-201 | 1980-03-01 | 8 | 4.07 MB | Data Sets - Multiple Installation Information |
| 590-010-202 | 1978-05-01 | 2 | 1.39 MB | Data Sets - Station Arrangements for Mixed Data Sets in 40A-Type Data Mountings |
| 590-010-300 | 1968-07-01 | 1I | 1.88 MB | Data Systems - "DATA-PHONE" Service on Direct Distance Dialing Network - Overall Field Force Maintenance Procedures |
| 590-010-400 | 1970-01-01 | 1 | 232.28 KB | Manual Key Switching Arrangements for Data Services - Installation and Connection Diagrams |
| 590-011-202 | 1978-12-01 | 1 | 1.04 MB | Data Sets - Registered Arrangements for Data Sets in 40A3 Data Mountings |
| 590-100-114 | 1972-10-01 | 2 | 241.56 KB | 27A1 and 27B1 Data Units - Identification |
| 590-100-131 | 1973-05-01 | 1 | 401.87 KB | 44A1 Data Unit - Tone Detector - Description |
| 590-100-134 | 1974-10-01 | 1 | 338.17 KB | 48-Type Data Units - Identification |
| 590-101-000 | 1976-11-01 | 2 | 880.09 KB | 150A Channel Service Unit - Description, Installation, Maintenance, and Tests |
| 590-101-103 | 1979-06-01 | 3 | 2.84 MB | Jacks for Registered Data Equipment - Single and Multiline Installations |
| 590-101-103 | 1981-03-01 | 4 | 2.71 MB | Jacks for Registered Data Equipment - Single and Multiline Installations |
| 590-101-103 A | 1980-03-01 | 1 | 51.18 KB | Jacks for Registered Data Equipment - Single and Multiline Installations |
| 590-102-123 | 1970-09-01 | 1 | 772.64 KB | 27-Type Data Mounting - Identification |
| 590-102-124 | 1974-07-01 | 2 | 1.33 MB | 28-Type Data Mounting - Identification |
| 590-102-129 | 1971-08-01 | 1 | 165.35 KB | 37A1 Data Mounting - Identification |
| 590-102-131 | 1977-01-01 | 4 | 291.99 KB | 40-Type Data Mounting - Identification |
| 590-102-132 | 1975-09-01 | 2 | 161.56 KB | 41-Type Data Mounting - Identification |
| 590-102-133 | 1975-10-01 | 3 | 87.55 KB | 42A-Type Data Mounting - Identification |
| 590-102-134 | 1974-04-01 | 1 | 127.43 KB | 44A1 Data Mounting - Identification |
| 590-102-135 | 1974-09-01 | 1 | 143.13 KB | 45A1 Data Mounting - Identification |
| 590-102-136 | 1974-10-01 | 1 | 351.51 KB | 46-Type Data Mounting - Identification |
| 590-102-137 | 1974-02-01 | 1 | 134.90 KB | 47-Type Data Mounting - Identification |
| 590-102-138 | 1975-06-01 | 1 | 123.04 KB | 43A1 Data Mounting - Identification |
| 590-102-139 | 1975-01-01 | 1 | 217.62 KB | 48A-Type Data Mounting - Identification |
| 590-102-140 | 1976-09-01 | 2 | 264.77 KB | 49A1 Data Mounting - Identification |
| 590-102-141 | 1975-05-01 | 1 | 126.51 KB | 50A1 Data Mounting - Identification |
| 590-102-142 | 1975-09-01 | 1 | 155.85 KB | 52A1 Data Mounting - Identification |
| 590-102-153 | 1976-11-01 | 1 | 342.92 KB | 57-Type Data Mountings - Description |
| 590-103-103 | 1973-05-01 | 3 | 1.94 MB | 1000A Data Coupler - Description, Installation, Maintenance, and Tests |