diff --git a/README.md b/README.md
index 350e2d1..7006d58 100644
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+++ b/README.md
@@ -29,6 +29,15 @@ timeouts. In case if a remote does not respond, a request with no timeout gets s
 
 # Example
 
+## IEC 60870-5 101 (Serial)
+
+The crate does not provide any client for IEC 60870-5 101 (Serial) as such does
+not require re-connection. Any communication library plus [IEC
+60870-5](https://crates.io/crates/iec60870-5) crate can be used to create/parse
+IEC 60870-5 101 telegrams.
+
+```rust,no_run
+
 ## IEC 60870-5 104 (TCP)
 
 ## Connecting a client