Rules & Regulations of the State of Tennessee
Title 1220 - Tennessee Public Utility Commission
Subtitle 1220-04 - Division of Public Utilities
Chapter 1220-04-06 - Ten Year Master Plan for Technology Deployment by Telephone Companies
Section 1220-04-06-.05 - TECHNOLOGY DEPLOYMENT PLAN FOR INDIVIDUAL TELEPHONE COMPANIES
Universal Citation: TN Comp Rules and Regs 1220-04-06-.05
Current through September 24, 2024
(1) The following is a key to abbreviations used in paragraphs (2) and (3).
(a) Switching
Machine Legend List by Vendor.
| 1. | DCO | Digital Central Office |
| 2. | SXS | AT&T Technologies 350A or #1 SXS |
| 3. | 355 | AT&T Technologies 355A SXS |
| 4. | RSS | AT&T Technologies IOA Remote Switching System |
| 5. | RSM | AT&T Technologies Remote Switching Module |
| 6. | IAESS | AT&T Technologies #IA Electronic Switching System |
| 7. | 2ESS | AT&T Technologies #2 Electronic Switching System |
| 8. | 2BES | AT&T Technologies #2B Electronic Switching System |
| 9. | 3ESS | AT&T Technologies #3 Electronic Switching System |
| 10. | 5XB | AT&T Technologies #5 Crossbar |
| 11. | 5ESS | AT&T Technologies #5 Electronic Switching System |
| 12. | SXS-AE | Automatic Electric SXS |
| 13. | REM | Generic Digital Remote |
| 14. | DIG | Generic Digital Switch |
| 15. | TDM | Generic Tandem Switch |
| 16. | TCS-5 ITT | Corporation Analog Electronic Switching System |
| 17. | DSS-1210 | ITT Digital Switch |
| 18. | SXS-I | ITT SXS |
| 19. | RM-K | Kellogg Relay-Matic Electromechanical Switch |
| 20. | SXS-K | Kellogg SXS |
| 21. | RM-L | Lenkhurt Relay-Matic Electromechanical Switch |
| 22. | NEAX61K | NEC Digital Switch, Version K |
| 23. | NWC | New Wire Center |
| 24. | NX-2A | North Crossbar Switch |
| 25. | NXI-E | North Crossbar Switch with Processor Control |
| 26. | DMS-200 | Northern Telecom Access Tandem/TOPS |
| 27. | SP-1 | Northern Telecom Analog Electronic Switching System |
| 28. | DSM-1/200 | Northern Telecom Combined Local/Access Tandem |
| 29. | DSM-10 | Northern Telecom Digital Multiplexing System |
| 30. | DSM-100 | Northern Telecom Local Digital Switch |
| 31. | RLCM | Northern Telecom Remote Line Concentrator Module |
| 32. | RLSE | Northern Telecom Remote Line Switch Equipment |
| 33. | RSC | Northern Telecom Remote Switching Center |
| 34. | RM-S | Stromberg Carlson Electromechanical Switch |
| 35. | ESC-1 | Stromberg Carlson Electromechanical Switching Center |
| 36. | XY | Stromberg Carlson Step-by-Step Switch |
| 37. | ITS-5 | Vidar Corporation Digital Switch |
(b)
COUNTY CLASS
1. R = Rural
2. S = Suburban
3. U = Urban
(2) Tennessee Regulatory Authority Telecommunications Technology Deployment Plan, Master Plan Network Switch Configuration.
Authority: T.C.A. §§ 65-2-102 and 65-4-104.
Disclaimer: These regulations may not be the most recent version. Tennessee may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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