artwork from MSI Communications' page

Electrical Network Connection:

From one to twenty five single or multiple pair circuits bridged to the network or other connected equipment.

Mechanical Arrangement:

Circuits are provided on numbered tip and ring positions on a miniature 50 pin connector of the "Amphenol" or "telco" type. Pins 1 (ring) and 26 (tip) are considered position 1. Pins 2 (ring) and 27 (tip) are position 2 on thru twenty five pairs.

Typical Usage:

Many key and PBX systems specifiy the RJ21X as the network interface device. Many of these systems also use the RJ21X, or "Amphenol" as a connector for stations or telephone sets, wired from the KSU or PBC main distribution frames.

Press your browser's BACK button to return
goto Jacks and Plugs page
goto Telecommunications Tidbits page

e-mail additions, comments, corrections, and deletions to wildixon@shout.net