RJ61 (Registered Jack 61) is a physical interface often used for terminating twisted pair type cables. This pinout is for multi-line telephone use only; RJ61 is unsuitable for use with Ethernet over twisted pair (10BASE-T, 100BASE-TX and1000BASE-T) because the pins for pairs 3 and 4 are too widely spaced. The following schematic shows the RJ61 Pinout Diagram and Wiring Color Code.

RJ61 Pinout Diagram

RJ61 Pinout Diagram

RJ61 Wiring Color Code (USOC)

RJ61 Wiring Color Code

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