What is an REB?

A small prefabricated building beside the line that houses telecoms and signalling equipment. In FTN terms it's often an access node site.

Why: Equipment needs a secure, powered, weatherproof home near the track. How cables get into it (cable type, length inside, screening conductor) is tightly ruled.

Where: At node sites along the route. Fibre usually reaches it by a spur; PE cable may only run a limited distance inside before ZHLS is needed.

Where the rules are

• NR/L2/TEL/30160 cl 7.7.1adding an access node (REB, cabinet, ATEH) to an existing cable
• NR/L2/TEL/30160 cl 6.9.2how far PE cable may run into an REB
• NR/L3/TEL/30108 cl 5.3.7cables entering buildings — no screening conductor inside
• NR/L3/TEL/30162 cl 6.6gapping the armour before a building entry

What to order

• Anti Vibration Feet for FTN REB Cabinets · Gem Cable · 830-208
• Anti Vibration Wall Mounts for FTN REB Cabinets · Gem Cable · 830-207

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

On the drawing

Shown on the SLD as the node; its internal layout is covered by the node design pack.

Also called: relocatable equipment building, equipment building, ATEH is the smaller housing

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