Rail Telecoms One Stop

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.

1Purpose
2Scope
3Maintenance Frequencies and Procedures