Level 2 specification
NR/L2/TEL/30002
Operational Concentrator System (OCS) (NR/SP/TEL/30002)
Issue 6, 02 September 2023
Specification for the Operational Concentrator System (signal box telephone concentrator)
Section headings
We have not yet written plain-words notes for every clause of this one; the headings below show its shape.
| 1 | Purpose | |
| 2 | Scope | |
| 3 | Roles and responsibilities | |
| 4 | Definitions | |
| 5 | Abbreviations | |
| 6 | Functional Overview | |
| 7 | Functional Overview | |
| 8 | Line Interface Functional Requirements | |
| 9 | System Management Functional Requirement | |
| 10 | Design and Construction Requirements | |
| 11 | Approvals |