What is an access node?
At a glance
A node on the FTN/FTNx network that connects local users and equipment into the fibre network, fed from the main cable by a spur.
Why: It's where railway services join the transmission network. Its cabling and fibre allocation follow set patterns, with less resilience than a core node.
Where: In an REB, cabinet or ATEH near the railway sites it serves, connected by a single spur cable to the main cable.
Where the rules are
- NR/L2/TEL/30160 cl 5.3what FTN/FTNx access nodes do and how they are classed
- NR/L2/TEL/30160 cl 6.6access node sites and the spur cable
- NR/L2/TEL/30160 cl 7.5cabling at access nodes
- NR/L2/TEL/30160 cl 8.5which fibres are pigtailed at an access node
On the drawing
Shown on the SLD and in the fibre splicing drawing for its spur.
- NR/L2/TEL/30160 cl Appendix Asplicing drawings for spurs into access nodes
Also called: FTN access node, FTNx access node, node site
Guidance in our words. Read the current issue of each standard before you design to it.