diff --git a/Makefile b/Makefile
index 2e391b73..d405cead 100644
--- a/Makefile
+++ b/Makefile
@@ -57,7 +57,7 @@ DSKDMP = bin/ks10/boot/dskdmp.rp06
 KLH10=tools/klh10/tmp/bld-ks-its/kn10-ks-its
 SIMH=tools/simh/BIN/pdp10
 KA10=tools/sims/BIN/pdp10-ka
-KL10=tools/sims/BIN/pdp10-ka
+KL10=tools/sims/BIN/pdp10-kl
 ITSTAR=tools/itstar/itstar
 WRITETAPE=tools/tapeutils/tapewrite
 MAGFRM=tools/dasm/magfrm
@@ -240,7 +240,7 @@ $(KA10):
 	$(MAKE) -C tools/sims pdp10-ka
 
 $(KL10):
-	$(MAKE) -C tools/sims pdp10-ka
+	$(MAKE) -C tools/sims pdp10-kl
 
 $(ITSTAR):
 	$(MAKE) -C tools/itstar
diff --git a/README.md b/README.md
index 5c56ad31..b98b0101 100644
--- a/README.md
+++ b/README.md
@@ -53,16 +53,19 @@ we'd be delighted to test this on a real KS10.
 To build ITS with this repository, you need some tools installed:
 make, C compiler, and expect.  For KA10, you also need SDL or SDL2 for
 the Type 340 display.  Ensure all submodules are checked out, and then
-type `make EMULATOR=simh`, `make EMULATOR=pdp10-ka`, or `make
-EMULATOR=klh10`.  This will leave built files in the `out` directory,
-one of which is a disk image with ITS installed.
+type `make EMULATOR=simh`, `make EMULATOR=pdp10-ka`, `make
+EMULATOR=pdp10-kl`, or `make EMULATOR=klh10`.  This will leave built
+files in the `out` directory, one of which is a disk image with ITS
+installed.
 
 To start ITS, type `./start`.  If you see `KLH10#`, type `go` and
-Enter.  When you see the `DSKDMP` prompt, type `its`, press Enter, and
-then `ESC g`.  Eventually, you will see `SYSTEM JOB USING THIS
-CONSOLE`.  You are now ready to log in, so type Control-Z.  See
-[doc/DDT.md](doc/DDT.md) for a list of useful commands.  When done,
-shut down orderly by typing `:lock` and then `5down`.
+Enter.  If you see the `DSKDMP` prompt, type `its`, press Enter, and
+then `ESC g`.  If you use the `pdp10-kl` emulator there is no prompt
+and you need to type `Esc L ITS`, press Enter, and then `ESC g`.
+Eventually, you will see `SYSTEM JOB USING THIS CONSOLE`.  You are now
+ready to log in, so type Control-Z.  See [doc/DDT.md](doc/DDT.md) for
+a list of useful commands.  When done, shut down orderly by typing
+`:lock` and then `5down`.
 
 ITS can optionally use some additional peripheral devices.  To attach
 a simulated GT40 graphics terminal, type `./start gt40` when booting
@@ -132,9 +135,9 @@ There is a [detailed list of all installed programs](doc/programs.md).
 ### Network Support
 
 Currently, networking is only supported under the KLH10 and SIMH KA10
-emulators. The SIMH KS10 does not have the necessary support. As of
-this release, only the ITS monitor, host table tools, and binary host
-table are installed.
+and KL10 emulators. The SIMH KS10 does not have the necessary
+support. As of this release, only the ITS monitor, host table tools,
+and binary host table are installed.
 
 Currently, basic TCP network support is in the build, in addition to
 both a TELNET/SUPDUP server, and both TELNET and SUPDUP clients.
diff --git a/bin/kl10/_/@.ddt b/bin/kl10/_/@.ddt
index c8238abc..9ef9bd16 100644
Binary files a/bin/kl10/_/@.ddt and b/bin/kl10/_/@.ddt differ
diff --git a/bin/kl10/_/its.bin b/bin/kl10/_/its.bin
index f6fbe36a..806e59d9 100644
Binary files a/bin/kl10/_/its.bin and b/bin/kl10/_/its.bin differ
diff --git a/bin/kl10/_/salv.bin b/bin/kl10/_/salv.bin
index deeffd91..0312f4a7 100644
Binary files a/bin/kl10/_/salv.bin and b/bin/kl10/_/salv.bin differ
diff --git a/bin/kl10/boot/@.ddt b/bin/kl10/boot/@.ddt
index c8238abc..9ef9bd16 100644
Binary files a/bin/kl10/boot/@.ddt and b/bin/kl10/boot/@.ddt differ
diff --git a/bin/kl10/boot/magdmp.bin b/bin/kl10/boot/magdmp.bin
index 6a0b73c5..ba1c64ee 100644
Binary files a/bin/kl10/boot/magdmp.bin and b/bin/kl10/boot/magdmp.bin differ
diff --git a/bin/kl10/boot/salv.bin b/bin/kl10/boot/salv.bin
index f40ce02a..0312f4a7 100644
Binary files a/bin/kl10/boot/salv.bin and b/bin/kl10/boot/salv.bin differ
diff --git a/build/kl10/include.tcl b/build/kl10/include.tcl
index 72963bfb..cb9ae771 100644
--- a/build/kl10/include.tcl
+++ b/build/kl10/include.tcl
@@ -21,7 +21,7 @@ proc mark_packs {} {
     respond "UNIT #" "0"
     respond "#0?" "y"
     respond "NO =" "0\r"
-    expect -timeout 300 "VERIFY"
+    expect -timeout 300 "VERIFICATION BEGINS"
     respond "ALLOC =" "3000\r"
     respond "PACK ID =" "0\r"
 
@@ -29,7 +29,7 @@ proc mark_packs {} {
     respond "UNIT #" "1"
     respond "#1?" "y"
     respond "NO =" "1\r"
-    expect -timeout 300 "VERIFY"
+    expect -timeout 300 "VERIFICATION BEGINS"
     respond "ALLOC =" "3000\r"
     respond "PACK ID =" "1\r"
 
@@ -37,7 +37,7 @@ proc mark_packs {} {
     respond "UNIT #" "2"
     respond "#2?" "y"
     respond "NO =" "2\r"
-    expect -timeout 300 "VERIFY"
+    expect -timeout 300 "VERIFICATION BEGINS"
     respond "ALLOC =" "3000\r"
     respond "PACK ID =" "2\r"
 }
@@ -55,8 +55,8 @@ proc its_switches {} {
 proc make_ntsddt {} {
     # KL10 NTSDDT.
     respond "*" ":midas dsk0:.;@ ddt_system;ddt\r"
-    respond "cpusw=" "0\r"
-    respond "ndsk=" "1\r"
+    respond "cpusw=" "2\r"
+    respond "ndsk=" "3\r"
     respond "dsksw=" "3\r"
     respond "dsktp=" "0\r"
     respond "1PRSW=" "0\r"
@@ -84,7 +84,7 @@ proc make_dskdmp {} {
     respond "R10R6P=" "N\r"
     respond "NUDSL=" "500.\r"
     respond "KS10P=" "N\r"
-    respond "KL10P=" "N\r"
+    respond "KL10P=" "Y\r"
     expect ":KILL"
 }
 
@@ -129,7 +129,7 @@ proc dump_nits {} {
 }
 
 proc magdmp_switches {} {
-    respond "KL10P=" "n\r"
+    respond "KL10P=" "y\r"
     respond "TM10BP=" "y\r"
     respond "340P=" "n\r"
 }
@@ -175,12 +175,7 @@ proc patch_lisp {} {
 }
 
 proc translate_diagnostics {} {
-    respond "*" "\033\024"
-    respond " " "dsk: maint; part f, part f.old\r"
-    respond "*" "\033\024"
-    respond " " "dsk: maint; part g, part g.old\r"
-    respond "*" "\033\024"
-    respond " " "dsk: maint; part k, part k.old\r"
+    # KL10 doesn't need any translations.
 }
 
 proc patch_clib_16 {} {
@@ -205,9 +200,9 @@ proc copy_to_klfe {file} {
 }
 
 proc comsat_switches {} {
-    respond "Limit to KA-10 instructions" "y\r"
+    respond "Limit to KA-10 instructions" "n\r"
 }
 
 proc dqxdev_switches {} {
-    respond "Limit to KA-10 instructions" "y\r"
+    respond "Limit to KA-10 instructions" "n\r"
 }
diff --git a/build/misc.tcl b/build/misc.tcl
index fcbd4129..39fe651d 100644
--- a/build/misc.tcl
+++ b/build/misc.tcl
@@ -1135,7 +1135,7 @@ respond "*" ":midas;324 sys;ts 10run_sysen2; 10run\r"
 expect ":KILL"
 
 respond "*" ":job maint\r"
-# KA10 needs the .OLD files.
+# KA10 needs the .OLD files.  KL10 and KS10 the newer.
 translate_diagnostics
 respond "*" ":load maint; part a\r"
 respond "*" ":start\r"
diff --git a/build/pdp10-kl/boot b/build/pdp10-kl/boot
index f60d3e64..f5cb6ab3 100644
--- a/build/pdp10-kl/boot
+++ b/build/pdp10-kl/boot
@@ -1,19 +1,19 @@
 set console wru=034
 set cpu its
-set cpu 512k
-set dpa dis
-set dpb dis
+set cpu 2048k
 set rpb dis
 set tua dis
-set fha dis
-set dpb dis
 set lpt dis
-set cr dis
 set dc disable
-set dtc dis
-set dk dis
-set pd off
+set pd ena
+set pd on
+set mta type=b
 at mta0 out/pdp10-kl/minsrc.tape
+set rpa0 rp04
+set rpa1 rp04
+set rpa2 rp04
 at rpa0 out/pdp10-kl/rp04.0
+at rpa1 out/pdp10-kl/rp04.1
+at rpa2 out/pdp10-kl/rp04.2
 load -i bin/kl10/boot/@.ddt
 go
diff --git a/build/pdp10-kl/boot2 b/build/pdp10-kl/boot2
index 58d68aed..91227711 100644
--- a/build/pdp10-kl/boot2
+++ b/build/pdp10-kl/boot2
@@ -1,22 +1,17 @@
 set console wru=034
 set cpu its
-set cpu 512k
-set dpa dis
-set dpb dis
+set cpu 2048k
 set rpb dis
 set tua dis
-set fha dis
-set dpb dis
 set lpt dis
-set cr dis
 set dc disable
-set dtc dis
-set dk dis
 set pd ena
 set pd on
-set mta mpx=7
 set mta type=b
 at mta0 out/pdp10-kl/sources.tape
+set rpa0 rp04
+set rpa1 rp04
+set rpa2 rp04
 at rpa0 out/pdp10-kl/rp04.0
 at rpa1 out/pdp10-kl/rp04.1
 at rpa2 out/pdp10-kl/rp04.2
diff --git a/build/pdp10-kl/build.tcl b/build/pdp10-kl/build.tcl
index f035e4db..cd46ac3b 100644
--- a/build/pdp10-kl/build.tcl
+++ b/build/pdp10-kl/build.tcl
@@ -3,7 +3,7 @@ set out "out/$env(EMULATOR)"
 set emulator_escape "\034"
 
 proc start_salv {} {
-    uplevel #0 {spawn ./tools/sims/BIN/pdp10-ka build/pdp10-kl/init}
+    uplevel #0 {spawn ./tools/sims/BIN/pdp10-kl build/pdp10-kl/init}
     setup_timeout
     respond "MAGDMP\r\n" "l\033ddt\r"
     respond "\n" "t\033salv bin\r"
@@ -17,7 +17,7 @@ proc start_dskdmp args {
     } {
         set ini "build/pdp10-kl/boot2"
     }
-    set foo "spawn ./tools/sims/BIN/pdp10-ka $ini"
+    set foo "spawn ./tools/sims/BIN/pdp10-kl $ini"
     uplevel #0 $foo
     setup_timeout
 }
diff --git a/build/pdp10-kl/config.202 b/build/pdp10-kl/config.202
index 61641ee5..63981144 100644
--- a/build/pdp10-kl/config.202
+++ b/build/pdp10-kl/config.202
@@ -480,21 +480,19 @@ TERMIN
 ] ;MC
 
 IFE MCOND KL,[
-DEFOPT KA10P==1
+DEFOPT KL10P==1		;KL IS NOW A KL10
 DEFOPT MAXJ==120.	;MAX NUMBER OF JOBS ALLOWED
 DEFOPT SWBLK==1		;1 => SWAP BLOCKING, 0 => PRIVILEGED USER
 DEFOPT SWPWSP==0	;NO WORKING-SET SWAP SCHEDULER
 DEFOPT PAGPRE==1	;PAGE-IN PREEMPTION
 DEFOPT SCHBLN==20.	;NUMBER OF RUNNABLE JOBS TO REMEMBER
 
-DEFOPT NQS==3		;# OF DISK UNITS
-DEFOPT NQCHN==50.	;NUMBER 2314 CHNLS
-DEFOPT RP04P==1
-DEFOPT RP06P==0
+DEFOPT NQS==3		;# OF DISK UNITS (3 RP04'S)
 DEFOPT NTUTBL==2	;TUTS ARE TWO BLOCKS LONG
 DEFSYM NUDSL==500.	;# USER DIRECTORIES ON DISK
+DEFOPT NQCHN==50.	;NUMBER 2314 CHNLS
 DEFOPT RH10P==1		;HAS DEC RH10 DISK CONTROL (RP04)
-;DEFOPT T300P==3		;TRIDENT T-300S VIA PDP-11 START AT DRIVE 3
+DEFOPT RP04P==1		; WITH RP04 DISKS
 DEFOPT QRDCMP==0	;SOFTWARE READ-COMPARE, HARDWARE IS PINING FOR THE
 			; FJORDS (But this isn't debugged yet.)
 DEFOPT DMDSK==1		;USES DM DISK FORMAT
@@ -502,44 +500,40 @@ DEFOPT QRSRVP==1	;HAS RESERVED DISK PACKS
 DEFOPT QAUTHP==1	;KEEPS TRACK OF FILE AUTHORS
 
 DEFOPT NMTCS==1		;NUMBER MAG TAPE UNITS
-DEFOPT TM10A==0		;IO-BUS MAG TAPE
-DEFOPT TM10B==1		;IO-BUS MAG TAPE
+DEFOPT TM10B==1		;DF10-BASED TAPE CONTROLLER
 
-;DEFOPT DL10P==1		;HAS DL10/DC76 TTY CONTROLLER
+DEFOPT DL10P==0		;HAS NO DL10/DC76 TTY CONTROLLER
 DEFOPT PDCLKP==1	;HAS "DeCoriolis" CLOCK
 
-;DEFOPT NETP==1		; Has net connection
-;DEFOPT INETP==1		; Include Internet IP code
-;DEFOPT TCPP==1		; Include Internet TCP code
-;DEFOPT XBL==25.		; # TCP connections
-;DEFOPT IMPP==1		; Has IMP interface
-;DEFOPT KAIMP==1
-;DEFOPT IMPUS==106	; ARPA net host number
-;DEFOPT IMPUS3==<IPADDR 10,1,0,6>	; Internet host number
-;DEFOPT NCPP==0		; Flush NCP code
-;DEFOPT NNETCH==30.	; # NCP network channels
-;DEFOPT CHAOSP==1	;HAS CHAOS NET
-;DEFOPT MYCHAD==1440	;CHAOS NET ADDRESS
-;DEFOPT NINDX==50.	;NUMBER OF INDICES
-;DEFOPT DLCP==1		;CHAOS NET GOES THROUGH DL10
+DEFOPT NETP==1		; Has net connection
+DEFOPT INETP==1		; Include Internet IP code
+DEFOPT TCPP==1		; Include Internet TCP code
+DEFOPT XBL==25.		; # TCP connections
+DEFOPT IMPP==1		; Has IMP interface
+DEFOPT KAIMP==1
+DEFOPT IMPUS==106	; ARPA net host number
+DEFOPT IMPUS3==<IPADDR 192,168,1,100>	; Internet host number
+DEFOPT NCPP==0		; Flush NCP code
+DEFOPT NNETCH==30.	; # NCP network channels
+DEFOPT CHAOSP==0	;NO CHAOS NET
+DEFOPT MYCHAD==1440	;CHAOS NET ADDRESS
+DEFOPT NINDX==50.	;NUMBER OF INDICES
 
-DEFOPT NOTYS==1		;# KA-10 CONSOLE 0 TTYS
-;DEFOPT NETYS==33.	;# KL-10 DTE20 TTYS
-;NEWDTE==1		;TEMPORARY CONDITIONAL TO ENABLE NEW DTE20 PROTOCOL
-;DEFOPT NDLTYS==4.	;# TTYS ON DL10/DC76
-			;Note: 3d TTY on DL10 is VT52 by console.
+DEFOPT NOTYS==0		;# KA-10 CONSOLE 0 TTYS
+DEFOPT NETYS==16.	;# KL-10 DTE20 TTYS
+NEWDTE==1		;TEMPORARY CONDITIONAL TO ENABLE NEW DTE20 PROTOCOL
 DEFOPT NSTTYS==25.	;# OF STY'S (PSEUDO-TTY'S)
 
-DEFOPT TSYSM==512.	;TOTAL PDP10 1K MEM BLOCKS
-DEFOPT NMMP==4		;# EXEC PAGES FOR MMP TABLE (# VIR PGS/512.)
+DEFOPT TSYSM==2048.	;TOTAL PDP10 1K MEM BLOCKS
+DEFOPT NMMP==7		;# EXEC PAGES FOR MMP TABLE (# VIR PGS/512.)
 
-DEFSYM PMRCM==1777	;10 BIT REAL CORE ADR
-DEFSYM PMAGEM==16000	;3 BIT AGE
-DEFSYM PMCSHM==0	;NO CACHE BIT
-DEFSYM PMUNSD==160000	;UNUSED BITS
+DEFSYM PMRCM==7777	;12 BIT REAL CORE ADDR
+DEFSYM PMCSHM==10000	;CACHE ENABLE BIT
+DEFSYM PMAGEM==160000	;3 BIT AGE
+DEFSYM PMUNSD==0	;NO UNUSED BITS
 
 DEFINE ITSIRP BODY
-IRPS ITS,,[MX]
+IRPS ITS,,[MC]
 BODY
 TERMIN
 TERMIN
diff --git a/build/pdp10-kl/init b/build/pdp10-kl/init
index 6d1c9273..fddac251 100644
--- a/build/pdp10-kl/init
+++ b/build/pdp10-kl/init
@@ -1,20 +1,16 @@
 set console wru=034
 set cpu its
 set cpu 512k
-set dpa dis
-set dpb dis
 set rpb dis
 set tua dis
-set fha dis
-set dpb dis
 set lpt dis
-set cr dis
 set dc disable
-set dtc dis
-set dk dis
+set mta type=a
 at mta0 out/pdp10-kl/kl-magdmp.tap
 at mta5 out/pdp10-kl/kl-minsys.tape
-set rpa rp04
+set rpa0 rp04
+set rpa1 rp04
+set rpa2 rp04
 at rpa0 out/pdp10-kl/rp04.0
 at rpa1 out/pdp10-kl/rp04.1
 at rpa2 out/pdp10-kl/rp04.2
diff --git a/build/pdp10-kl/run b/build/pdp10-kl/run
index 580d1074..2b75df8e 100644
--- a/build/pdp10-kl/run
+++ b/build/pdp10-kl/run
@@ -1,25 +1,22 @@
 set console wru=034
 set cpu its
 set cpu idle
-set cpu 512k
-set dpa dis
-set dpb dis
+set cpu 2048k
 set rpb dis
 set tua dis
-set fha dis
-set dpb dis
 set lpt dis
-set cr dis
 set dc disable
-set dtc dis
-set dk dis
+set tty enabled
+set tty 8b lines=16
+at tty 10007
 set pd ena
 set pd on
-set mta mpx=7
 set mta type=b
-set rpa rp04
+set rpa0 rp04
+set rpa1 rp04
+set rpa2 rp04
 at rpa0 out/pdp10-kl/rp04.0
 at rpa1 out/pdp10-kl/rp04.1
 at rpa2 out/pdp10-kl/rp04.2
-load -i @.ddt
+load -i bin/kl10/boot/@.ddt
 go
diff --git a/build/pdp10-kl/start b/build/pdp10-kl/start
index 676ff7bc..c2983eb5 100755
--- a/build/pdp10-kl/start
+++ b/build/pdp10-kl/start
@@ -17,15 +17,10 @@ stop() {
     echo "OK"
 }
 
-gt40() {
-    (sleep 3; tools/simh/BIN/pdp11 build/pdp10-ka/gt40 >gt40.log 2>&1) &
-    started GT40 "$!"
-}
-
 while test -n "$1"; do
     "$1"
     shift
 done
 
-tools/sims/BIN/pdp10-ka build/pdp10-kl/run
+tools/sims/BIN/pdp10-kl build/pdp10-kl/run
 exit 0
diff --git a/src/system/salv.315 b/src/system/salv.316
similarity index 99%
rename from src/system/salv.315
rename to src/system/salv.316
index b106e93a..c9c2e26b 100644
--- a/src/system/salv.315
+++ b/src/system/salv.316
@@ -163,23 +163,23 @@ PRINTX /Which machine? /
 	NUNITS==6
 	];MC
  IFCE MCHN,KL,[
-	;SA==105*2000	; MC system is big, need to push SALV higher.
+	SA==105*2000	; KL system is big, need to push SALV higher.
 	FIRSPK==0
 	LASTPK==2
 	NUDSL==500.
 	DC10P==0
 	RP10P==0
 	RP04P==1
-        RP06P==0
+	RP06P==0
 	RH10P==1
-	T300P==0	;UNIT 3 IS FIRST T-300 UNIT
-	KL10P==0
+	T300P==0
+	KL10P==1
 	OLPTP==0
 	NLPTP==0
 	TTLPTP==0	;NO LPT AT ALL
 	TCMXH==100.	;LA36
-	LIGHTS==4	;KL-UDGE
-	NDRIVE==3	;8 DOESN'T FIT IN 128K
+	LIGHTS==500	;KL-UDGE
+	NDRIVE==3
 	NUNITS==3
 	];KL
  IFCE MCHN,EX,[
diff --git a/src/system/ttytyp.320 b/src/system/ttytyp.321
similarity index 98%
rename from src/system/ttytyp.320
rename to src/system/ttytyp.321
index 7efd1e00..d262e897 100644
--- a/src/system/ttytyp.320
+++ b/src/system/ttytyp.321
@@ -327,8 +327,22 @@ MCONDX MC,{				;;; MC
 .ENDC ;}
 
 MCONDX KL,{				;;; KL
-	TTDLA36 0,TT=%TTLCL,HOR=80.,SPEED=110	;T00 System Console
+	TTDLA36 0,TT=%TTLCL,HOR=110.	;T00 System Console
 	TTDAAA 1,SPEED=9600		;T01
+	TTDAAA 2,SPEED=9600		;T02
+	TTDAAA 3,SPEED=9600		;T03
+	TTDAAA 4,SPEED=9600		;T04
+	TTDAAA 5,SPEED=9600		;T05
+	TTDAAA 6,SPEED=9600		;T06
+	TTDAAA 7,SPEED=9600		;T07
+	TTDAAA 10,SPEED=9600		;T10
+	TTDAAA 11,SPEED=9600		;T11
+	TTDAAA 12,SPEED=9600		;T12
+	TTDAAA 13,SPEED=9600		;T13
+	TTDAAA 14,SPEED=9600		;T14
+	TTDAAA 15,SPEED=9600		;T15
+	TTDAAA 16,SPEED=9600		;T16
+	TTDAAA 17,SPEED=9600		;T17
 .ENDC ;}
 
 REPEAT NSTTYS,[
diff --git a/tools/sims b/tools/sims
index 8e10ec9d..eeae1be5 160000
--- a/tools/sims
+++ b/tools/sims
@@ -1 +1 @@
-Subproject commit 8e10ec9d1ef337f29ed8954af1533ae6df854a04
+Subproject commit eeae1be5f11cd430da68a4f08b8c1380777bb7db