diff --git a/docs/resources/diagrams/plantuml/tfa_dfd.puml b/docs/resources/diagrams/plantuml/tfa_dfd.puml
index 0007911..9d3dcba 100644
--- a/docs/resources/diagrams/plantuml/tfa_dfd.puml
+++ b/docs/resources/diagrams/plantuml/tfa_dfd.puml
@@ -25,7 +25,7 @@
     nsec [label="Non-secure\nClients"]
     sec [label="Secure\nClients"]
     dbg [label="Debug & Trace"]
-    logs [label="Logs\n(UART)"]
+    uart [label="UART"]
     nvm [label="Non-volatile\nMemory"]
 
     # Trust boundary cluster
@@ -56,7 +56,7 @@
 
     # Interactions between nodes
     nvm -> bl31 [lhead=cluster_tfa label="DF1"]
-    logs -> bl31 [dir="back" lhead=cluster_tfa label="DF2"]
+    uart -> bl31 [dir="both" lhead=cluster_tfa label="DF2"]
     dbg -> bl2 [dir="both" lhead=cluster_tfa label="DF3"]
     sec -> bl2 [dir="both" lhead=cluster_tfa label="DF4"]
     nsec -> bl1 [dir="both" lhead=cluster_tfa, label="DF5"]
diff --git a/docs/resources/diagrams/plantuml/tfa_rss_dfd.puml b/docs/resources/diagrams/plantuml/tfa_rss_dfd.puml
index 23f5b17..a7e0ce5 100644
--- a/docs/resources/diagrams/plantuml/tfa_rss_dfd.puml
+++ b/docs/resources/diagrams/plantuml/tfa_rss_dfd.puml
@@ -25,7 +25,7 @@
     nsec [label="Non-secure\nClients"]
     sec [label="Secure\nClients"]
     dbg [label="Debug & Trace"]
-    logs [label="Logs\n(UART)"]
+    uart [label="UART"]
     nvm [label="Non-volatile\nMemory"]
 
 
@@ -65,7 +65,7 @@
 
     # Interactions between nodes
     nvm -> bl31 [lhead=cluster_tfa label="DF1"]
-    logs -> bl31 [dir="back" lhead=cluster_tfa label="DF2"]
+    uart -> bl31 [dir="both" lhead=cluster_tfa label="DF2"]
     dbg -> bl2 [dir="both" lhead=cluster_tfa label="DF3"]
     sec -> bl2 [dir="both" lhead=cluster_tfa label="DF4"]
     nsec -> bl1 [dir="both" lhead=cluster_tfa, label="DF5"]