Level 2 specification
NR/L2/TEL/30114
Specification for the Maintenance of CIS Control Equipment (formerly NR/WI/TEL/30114, Maintenance of CIS Computers)
Issue 2, March 2009
Maintenance specification for Customer Information System control equipment: operator consoles (Service A), control equipment including routers and switches (Service B) and system data backup (Service C). Services A/B are twice a year at the busiest stations (major, managed and Section 12), yearly at other sites; backup yearly everywhere. CIS power and UPS are in 30081.
Clause map — what each clause deals with
| 1 | Purpose | Sets out an inspection regime for CIS control equipment to reduce failures from deterioration and spot defects early |
| 2 | Scope | Applies to maintainers of CIS computers and control kit; associated power supplies, UPS and batteries are maintained under 30081 |
| 3 | Definitions (in addition to those defined in NR/L2/TEL/31002) | Defines CIS and SFO, adding to the general maintenance definitions in 31002 |
| 4 | Responsibilities | Maintainer must agree disturbance with users, protect the public, avoid peak hours, report defects to fault control and record corrective actions on the work return |
| Appendix A | Maintenance of CIS Operators Console | Service A, twice a year at the busiest stations (major, managed and Section 12), yearly at other sites: console wiring and connectors, cleaning, fans, system clock, console function test, pre-recorded announcements |
| Appendix B | Maintenance of CIS Control Equipment (Includes CIS Routers and Switches) | Service B, same periodicity as A: alarms and diagnostics/logs, cabinet earth bonding and ESD studs, wiring, connectors, labels, filters, fans, door locks, cleaning, disk drives |
| Appendix C | System data Backup | Service C, yearly at all sites: back up CIS system data to removable media, with one labelled copy kept on site and one held securely off site |