diff --git a/cept.py b/cept.py
index e0c1a2b..5bc8806 100644
--- a/cept.py
+++ b/cept.py
@@ -68,9 +68,9 @@ btxlogo = (
         "\x1f\x3d1# 200961a\x1f\x2f" # Link zur Demo-Startseite 200961a
         "\x1f\x43\x48\xb8\xa3\x12\x57\xe4"
         "\x1f\x44\x47\xea\xa0\x12\x59\xb5"
-        "\x1f\x45\x47\xea      \xe8\xfc\xdf\x12\x49\xfc\xb4      \xb5"
-        "\x1f\x46\x47\xea    \xe8\xdf\x12\x44\xa3\x12\x45\xdf\x12\x44\xb4    \xb5"
-        "\x1f\x47\x47\xea    \xaa\xdf\xdf\xdf\xaf\xa1 \xfc\xdf\xdf\xfc \xa2\xaf\xdf\xdf\xdf\xa5    \xb5"
+        "\x1f\x45\x47\xea     \xe0\xf8\xfc\xdf\x12\x49\xfc\xf4\xb0     \xb5"
+        "\x1f\x46\x47\xea    \xe8\xdf\x12\x43\xbf\xa3\x12\x45\xef\xdf\x12\x43\xb4    \xb5"
+        "\x1f\x47\x47\xea    \xaa\xdf\xdf\xdf\xaf\xa1\xe0\xfc\xdf\xdf\xfc\xb0\xa2\xaf\xdf\xdf\xdf\xa5    \xb5"
         "\x1f\x48\x47\xea     \xa2\xe3\xf8\xfe\xdf\xea\xdf\x12\x43\xb5\xdf\xfd\xf4\xb3\xa1     \xb5"
         "\x1f\x49\x47\xea      \xdf\x12\x43\xea\xdf\x12\x43\xb5\xdf\x12\x43      \xb5"
         "\x1f\x4a\x47\xea      \xdf\x12\x43\xfd\xf3\xaf\xaf\xf3\xfe\xdf\x12\x43      \xb5"
diff --git a/config.py b/config.py
index b56ff9e..63995a1 100644
--- a/config.py
+++ b/config.py
@@ -15,7 +15,7 @@ DEMOPAGES="demopages/"
 LOGLEVEL=logging.DEBUG
 
 ## serial port settings:
-PORT="/dev/pts/10"
+PORT="/dev/pts/5"
 #PORT="/dev/ttyUSB0"
 BAUDRATE="2400"
 # if the system is connected directly (null-modem): MODE=direct
diff --git a/doc/rtx-Logo.png b/doc/rtx-Logo.png
index db0a542..3baa127 100644
Binary files a/doc/rtx-Logo.png and b/doc/rtx-Logo.png differ
diff --git a/rtx.py b/rtx.py
index a7fcb10..cc7f22d 100755
--- a/rtx.py
+++ b/rtx.py
@@ -23,7 +23,8 @@ import logging
 logging.basicConfig(format='%(asctime)s %(levelname)s: %(message)s', level=config.LOGLEVEL, datefmt='%Y-%m-%d %I:%M:%S')
 
 # initialize serial connection to client
-glob.ser = serial.Serial(config.PORT, config.BAUDRATE, timeout=None)
+logging.debug("Serial port %s, Baud rate %s", config.PORT, config.BAUDRATE)
+glob.ser = serial.Serial(config.PORT, config.BAUDRATE, timeout=None, rtscts=True, dsrdtr=True)
 logging.info("Serial port %s opened", glob.ser.name)
 
 while True: