diff --git a/build/sims/boot2 b/build/sims/boot2
index ea4caeae..252a9042 100644
--- a/build/sims/boot2
+++ b/build/sims/boot2
@@ -1,7 +1,8 @@
 set console wru=034
 set cpu its
-set cpu 512k
+set cpu 1024k
 set cpu mpx
+set cpu ten11
 set pd off
 at ptr bin/ka10/boot/dskdmp.rim
 set mta mpx=7
diff --git a/build/sims/config.202 b/build/sims/config.202
index b7f4aaa9..5ead7339 100644
--- a/build/sims/config.202
+++ b/build/sims/config.202
@@ -251,6 +251,9 @@ DEFOPT NOTYS==1		;# KA-10 CONSOLE 0 TTYS
 DEFOPT NMTYS==0		;# TTYS ON MORTON BOX
 DEFOPT NSTTYS==8	;# STY'S (PSEUDO-TTY'S)
 
+DEFOPT TEN11P==1	;Rubin 10-11 interface
+IFDEF TEN11P,IFN TEN11P,DEFSYM T11CPA==3776000	;ADRS OF TEN-11 CONTROL PAGE
+
 DEFOPT TSYSM==512.	;TOTAL PDP10 1K MEM BLOCKS
 DEFOPT NMMP==4		;# EXEC PAGES FOR MMP TABLE (# VIR PGS/512.)
 
diff --git a/build/sims/run b/build/sims/run
index 6841afb6..2f80d7a8 100644
--- a/build/sims/run
+++ b/build/sims/run
@@ -1,8 +1,9 @@
 set console wru=034
 set cpu its
-set cpu 512k
+set cpu 1024k
 set cpu idle
 set cpu mpx
+set cpu ten11
 set pd off
 set dpy enabled
 at ptr bin/ka10/boot/dskdmp.rim
diff --git a/tools/sims b/tools/sims
index bbe8a625..82181d19 160000
--- a/tools/sims
+++ b/tools/sims
@@ -1 +1 @@
-Subproject commit bbe8a6252bb6a5ce666664a8e535c48ea08721aa
+Subproject commit 82181d19831303bfbabcc5729da02ebb794b1ec9