| Section
| Date
| Issue
| Size
| Title
|
| 595-100-100 | 1974-12-01 | 2 | 1.33 MB | Digital Data System - 550A-Type Channel Service Unit - Description |
| 595-100-200 | 1980-05-01 | 4 | 1.14 MB | Digital Data System - 550A-Type Channel Service Unit - Installation and Connections |
| 595-100-500 | 1979-01-01 | 4 | 356.29 KB | Digital Data System - 550A-Type Channel Service Unit - Test Procedures |
| 595-100-500 A | 1979-08-01 | 1 | 30.48 KB | Digital Data System - 550A-Type Channel Service Unit - Test Procedures |
| 595-105-100 | 1975-07-01 | 1 | 2.36 MB | 551A-Type Channel Service Unit - Description |
| 595-105-200 | 1975-07-01 | 1 | 1.97 MB | 551A-Type Channel Service Unit - Installation and Connections |
| 595-105-200 | 1980-12-01 | 2 | 2.12 MB | 551A-Type Channel Service Unit - Installation and Connections |
| 595-105-300 | 1975-07-01 | 1 | 88.37 KB | 551A-Type Channel Service Unit - Maintenance |
| 595-105-500 | 1975-07-01 | 1 | 408.93 KB | 551A-Type Channel Service Unit - Test Procedures |
| 595-200-100 | 1975-01-01 | 2 | 1.40 MB | Digital Data System - 500A-Type Data Service Unit - Description and Operation |
| 595-200-101 | 1981-07-01 | 1P | 4.14 MB | Digital Data System - 500B-Type Data Service Unit - Description and Operation |
| 595-200-101 | 1981-11-01 | 1 | 484.18 KB | 500B-Type Data Service Unit - Description and Operation - Digital Data System |
| 595-200-200 | 1980-05-01 | 4 | 2.26 MB | 500A-Type Data Service Unit - Installation and Connections - Digital Data System |
| 595-200-201 | 1981-07-01 | 1P | 4.52 MB | Digital Data System - 500B-Type Data Service Unit - Installation and Connections |
| 595-200-201 | 1981-11-01 | 1 | 1.98 MB | 500B-Type Data Service Unit - Installation and Connections - Digital Data System |
| 595-200-301 | 1981-07-01 | 1P | 1.03 MB | Digital Data System - 500B-Type Data Service Unit - Maintenance |
| 595-200-301 | 1981-11-01 | 1 | 148.51 KB | 500B-Type Data Service Unit - Maintenance - Digital Data System |
| 595-200-500 | 1981-01-01 | 5 | 602.69 KB | Digital Data System - 500A-Type Data Service Unit - Test Procedures |
| 595-200-501 | 1981-07-01 | 1P | 5.75 MB | Digital Data System - 500B-Type Data Service Unit - Test Procedures |
| 595-200-501 | 1981-11-01 | 1 | 695.75 KB | 500B-Type Data Service Unit - Test Procedures - Digital Data System |
| 595-300-100 | 1976-02-01 | 2 | 3.14 MB | Switched Digital Data System - 501A-Type Data Service Unit - Description and Operation |