1 pair dropwire STB module with over-voltage over-current protection gel filled (TP-1301-1GP) also called VX connection module provides 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.

It is equipped with GDT (Gas Discharge Tube) arrester in side the plug-in module, which forms the protection circuit for the protection of exchange room equipments and personnel against over voltage and over current, for mainly as follows:

• The surge voltage caused by lightning on or around the outside lines.

• The short-time AC voltage inducted on external lines, when the power line, the power system or the electric railway system is broken down in the neighborhood of the outside line.

• The outside line directly collides against a 220 V power line.

It is especially recommended for outdoor connections where the environmental conditions are extremely aggressive.

The connection modules are designed for mounting on a standard DIN rail and can therefore be mounted in a variety of housings in whatever quantities are required. The small footprint (2 cm wide) ensures a compact product.