Level 3 work instruction
NR/L3/TEL/30181/008
BT Trader Board and HMI backup telephone Maintenance
Issue 2, 05 September 2020
Maintenance module — BT trader board and HMI backup telephone
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 | Maintenance Frequencies and Procedures |