Voice and data communications system cabling was significantly less complicated a few decades ago than it is now. The majority of systems employed copper wire that was encased in a binder and had two or four pairs. Stripping the end of the wire to reveal the copper conductor was a common procedure for connections. After that, this was fastened to a group of connectors—often referred to as a connecting block—that linked tangible objects to a switching device, such a PBX system.
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