What is a spur cable?

A short cable branching off the main (trunk) fibre cable at a spur joint, to bring fibres into an access node such as an REB, cabinet or ATEH.

Why: Nodes rarely sit right on the main route, so a spur connects them. Spurs are kept short and their fibre count and routing follow set rules.

Where: From a spur joint on the main cable to the access node. How it's connected depends on how far the node sits from the nearest joint (three drawn scenarios).

Where the rules are

• NR/L2/TEL/30160 cl 7.7.1adding an access node — why spurs are kept short and the maximum spur length
• NR/L2/TEL/30160 cl 7.7.2Figure 3 — scenarios A, B, C for connecting by spur
• NR/L2/TEL/30160 cl 6.6spur fibre count and routing
• NR/L2/TEL/30160 cl 8.3spur joints — what they may and must not be used for
• NR/L2/TEL/30179 cl 8.2.2where spur cables are laid and what they connect into

What to order

• 48F PE armoured spur cable · Fujikura · OGNM12WTZTWBE-CTZE-SR15Ex48C
• CommScope N/R Spur Joint Closure - With 6 x SE Trays - Includes OSK/DJ - RSK/DJ - and Spli · Netceed · 892794

PADS numbers with free sign-up on each part page. More in the parts finder

On the drawing

Shown on the SLD from the joint to the node; spur splicing shown on the fibre splicing drawing.

• NR/L2/TEL/30160 cl Appendix Afibre splicing drawings for spurs into access nodes

Also called: fibre spur, spur

Guidance in our words. Read the current issue of each standard before you design to it.