1979. A middle-class -11. It had the 22-bit UNIBUS map and MMU as standard (up to 2 Mwords on a separate CPU-memory interconnect, called the PAX Memory Bus). The CPU consists of 5 boards, plus one for the FPP (FP11-F, optional), and two CIS (KE44-A, optional). Features: 8 KByte cache, ODT, 2 SLU's (Serial Line Units: console + TU58 console media), RTC (Real-Time Clock), kernel/supervisor/user modes.
The machine also had an almost-FEP (front-end processor) console, based on the Intel i8088, running from PROM. There was no qbus equivalent.
On the picture to the left, there is a VT100, which started to be the de facto standard at that time.
Trivia: This was the last non-microprocessor-based PDP-11 (it used LSI bitslice processors).