The RJ21 connector is very similar to the 50-pin Centronics interface, but with screws to anchor it into place instead of bail … 25 Pair RJ-21 (Amphenol) telephony connector Colours. The ends use Centronic 25 pin pairs of polarized connectors (50 pins total) also known as Amphenol connectors. The block is available in a 25 pair/1-Telco version or a 50 pair/2-Telco version (Available with female connectors only). The block Includes a hinged cover to protect the terminations from dust and dirt. This company was the largest seller and manufacturer of such cables. 25 pair amphenol connectors can be used for a wide variety of technology. Features. Single pre-wired female Amphenol connector … A telco cable, also known as a Telecom cable or Amphenol cable, is a thick 25 pair cable used for connecting multiple voice or data lines for LANs or telecommunications. Includes Cover & 89D bracket. Many professional installers use Amphenol cables that have one end of the assembly pre-terminated with a connector with the opposite end being a raw 25 pair cable that can be punched down on a telephone … Amphenol is a term made after the Amphenol Corporation. You can get 25 pair amphenol connectors … 25 Pair Amphenol Telco Cables for Telecom Installations. RJ21 Amphenol Pinout.