I understand that a 25-pair telephone cable is often used in the telephone industry. But why do some 25-pair telephone cables have Telco connectors on them? What do these connectors connect to
the connector is commonly called an amp connector because they are made by Amphenol. The 25 pair cable contains 6 lines. Tip/Ring, A lead control, and lamp/lamp ground. 66 blocks commonly have amp connectors on both sides to make connections. Many 66 blocks are amp'ed on one side, these are cabled to the KSU or PBX. Stations connect to these blocks thru bridge clips.
A quick way to make a splice when inside an office building. It's a fast way to have all 25 lines available at each persons work station. They use to call it pbx cable
