DEC MMJ connector

#Computer#Serial Interfaces

MMJ=Modified Modular Jack. Invented by Digital Equipment Corporation (DEC) (now: Compaq)

6 pin MMJ FEMALE connector pin-out & layout

6 pin MMJ FEMALE connector  at the devices

PinNameDescription
1DTRData Terminal Ready
2TXD+Transmit Data +
3TXD-Transmit Data -
4RXD+Receive Data +
5RXD-Receive Data -
6DSRData Set Ready

DEC Dual RS-232 connector

DEC Printer connector