What is punch down 66 block?

A punch down 66 block is a type of wire connecting block used in telecommunications that is used to terminate and distribute pairs of copper wire. It is called a punch down block because the wires are connected to the block by punching them down using a punch down tool. The 66 block was developed by the Bell System in the 1960s and was widely used in telephone systems until the 1990s.

The 66 block consists of rows of terminals that are arranged in four columns. Each row has multiple terminals that are used to connect multiple pairs of wires. The block also has two bridging clips that are used to connect the block to other blocks or equipment.

The punch down 66 block is easy to install and maintain and provides a secure and reliable connection for telecommunications systems. It is commonly used in telephone systems, computer networks, and other applications where reliable and secure communication is required.