The connector is the 6-pin MMP (Moulded Modular Plug
ISTR)
which normally
I've always called them MMJs (Modified Modular Jack IIRC).
Does anyone know which of us (if either) is nearer the truth?
On mine, the connector lacks any designation; however, the
cable says "DECconnect Office Cable".
Yuck I have some of these, either miniDin9 or close on one end, looks like
RJ11 on the other (hoped they were serial cables for Seiko label printers),
but clearly marked DECconnect Office Cable. Rats.