The STB module provide a connection point between an exchange-side
cable pair and a distribution pair. It incorporates a 5-point plug
in module to provide continuity and a range of other options.
Removal of the plug-in module does not disturb wire connections but
makes contacts to them available for testing of both sides of the
network. It is especially recommended for: 1. Outdoor connections where the enviromental conditions are
extremely agressive. 2. Terminations where user development characteristics require
future flexibility in terms of the type of protection or filtering
capabilities.