diff --git a/.gitignore b/.gitignore
index 2a4295a..57efe0d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -22,26 +22,11 @@ CVS
 /log
 /logger
 /status
+/dilsc
 /lab*
 /prep*
-/amor
-/boa
-/camea
-/dmc
-/eiger
-/flame
-/focus
-/hifi
-/hrpt
-/hrpt2
-/morpheus
-/poldi
 /ppms
-/sans
 /seaman
-/tasp
-/zebra
-/zebra2
 /logger_tar
 cheat_chart
 tcl/stuff_before_2022
diff --git a/tcl/dilsc.config b/tcl/dilsc_obsolete.config
similarity index 100%
rename from tcl/dilsc.config
rename to tcl/dilsc_obsolete.config
diff --git a/tcl/drivers/ah2550.tcl b/tcl/drivers/ah2550.tcl
index 4cdd9d2..de3beef 100644
--- a/tcl/drivers/ah2550.tcl
+++ b/tcl/drivers/ah2550.tcl
@@ -46,7 +46,7 @@ proc ah2550::start {} {
 
 proc ah2550::start1 {} {
   set prefix [lindex [sct result] 0]
-  if {$prefix eq "UN"} { # this was the echo
+  if {[string match "*UN" $prefix]} { # this was the echo
     sct send "SERIAL ECHO OFF"
     return ah2550::start
   }
@@ -74,7 +74,7 @@ proc ah2550::update {} {
   set res [string map {"=" "= "} $res]
   #clientput $res
   lassign $res  prefix c _ _ _ l un _ _ v _ _ _ _ _ _ _
-  if {$prefix eq "SI"} {
+  if {[string match "*SI" $prefix]} {
     sct send "\r\nSERIAL ECHO OFF\r"
     return stdSct::complete
   }