Northern Telecom/Northern Electric SG-1/SG-1A Practices
The production of this system spanned the time period where Northern Electric became Northern telecom, so some of the documents are Northern Electric Practices (NEP), while others are Northern Telecom Practices (NTP).
Available as a single zip archive: sg1-all.zip
| Number | Issue | Title |
|---|---|---|
| NTP-553-5011-000 | 79-09-04 | Product Index 553-5011 |
| NTP-553-5011-100 | 77-05-06 | General Description |
| NTP-553-5011-101 | 77-04-01 | Telephone Consoles QCN100 and QCN102 Type Description and Features |
| NTP-553-5011-150 | 77-04-27 | Physical Description and Ordering Information |
| NTP-553-5011-151 | 76-11-29 | Hotel/Motel Numbering Plans, Translation Tables, Ordering Information, and Records |
| NTP-553-5011-180 | 77-05-10 | Engineering Data |
| NTP-553-5011-181 | 74-11-19 | Line Circuit Function and Description |
| NTP-553-5011-182 | 77-04-22 | COX/FX/WATS Trunks (Gain/Non Gain) Function Description |
| NEP-553-5011-183 | 74-11-19 | Loop Signaling Trunk Function and Description |
| NEP-553-5011-184 | 74-11-26 | E & M or DX Signaling Trunk Function and Description |
| NEP-553-5011-185 | 74-11-27 | Paging Trunk Function and Description |
| NEP-553-5011-186 | 74-11-25 | Dictation Trunk Applique Function and Description |
| NTP-553-5011-187 | 72-02-18 | Traffic Interface Function and Description |
| NEP-553-5011-188 | 74-10-23 | Summary Transmission Characteristics |
| NTP-553-5011-189 | 77-05-13 | Music-On Hold CO/FX/WATS Trunk Function and Description |
| NTP-553-5011-190 | 76-11-29 | Engineering Data (Hotel/Motel Service) |
| NEP-553-5011-200 | 74-12-09 | General Installation Information |
| NEP-553-5011-201 | 74-11-28 | Shipping and Receiving |
| NTP-553-5011-202 | 79-09-21 | Assembly of Apparatus |
| NTP-553-5011-203 | 76-11-29 | Cable Connections at the Cross-Connecting Terminal |
| NTP-553-5011-204 | 77-05-06 | Class-of-Service Selection and Feature Strapping |
| NTP-553-5011-205 | 77-04-27 | Cable Connections to Miscellaneous Equipment |
| NTP-553-5011-206 | 77-03-21 | Tests and Inspection at time of Installation |
| NTP-553-5011-207 | 77-04-01 | Installation Class-of-Service and Feature Record Charts |
| NTP-553-5021-208 | 78-09-29 | Integrated Power Shelf QSP7L- Description; Operation and Installation |
| NEP-553-5011-300 | 74-11-13 | Console Operation and Tests |
| NTP-553-5011-301 | 77-03-21 | Station Operation and Tests |
| NEP-553-5011-500 | 74-11-29 | General Maintenance Information |
| NTP-553-5011-501 | 77-04-27 | Circuit Operations and Cabinet Cabling |
| NTP-553-5011-502 | 77-04-01 | Maintenance Aids Description and Maintenance Tools |
| NEP-553-5011-503 | 74-12-11 | Fault Classification |
| NTP-553-5011-504 | 77-05-10 | Control Logic Tests and Fault-Clearing Procedures |
| NEP-553-5011-505 | 74-11-29 | Station Line Tone Fault-Clearing Procedure |
| NEP-553-5011-506 | 74-11-27 | Ringing Fault-Clearing Procedure |
| NEP-553-5011-507 | 74-11-27 | Station Line Transmission and/or Dialing Fault-Clearing Procedure |
| NEP-553-5011-508 | 74-12-02 | Station Line Option Fault-Clearing Procedure |
| NTP-553-5011-509 | 77-03-21 | Telephone consoles QCN100 and QCN102 Type Operation, Transmission, and Traffic Measurement Fault-Clearing Procedures |
| NEP-553-5011-510 | 74-12-03 | Telephone Console, QCN100B and QCN102A Mechanical Fault Repair |
| NEP-553-5011-511 | 74-11-27 | Busy Lamp Field Fault-Clearing Procedure |
| NEP-553-5011-512 | 74-08-29 | Outgoing Trunk Selection Fault-Clearing Procedure |
| NEP-553-5011-513 | 74-11-29 | Trunk Transmission Fault-Clearing Procedure |
| NEP-553-5011-514 | 74-12-02 | Incoming Trunk Call Fault-Clearing Procedure |
| NTP-553-5011-515 | 77-04-27 | Trunk Option Fault-Clearing Procedure |
| NTP-553-5011-516 | 77-04-01 | Power Failure and Power Fail Transfer Circuit Fault-Clearing Procedures |
| NTP-553-5021-516 | 79-01-19 | Power Failure and Power Fail Transfer Circuit-Fault-Clearing Procedures for QSP7L Integrated Power Supply |
| NTP-553-5011-517 | 77-06-09 | Message Registration Fault-Clearing Procedure |