diff --git a/documentation/clients/File.md b/documentation/clients/File.md
index 24aa6176a..abc646266 100644
--- a/documentation/clients/File.md
+++ b/documentation/clients/File.md
@@ -1 +1,34 @@
-# File
\ No newline at end of file
+# File
+
+The `file` node-type can be used to log or replay sample values to disk.
+
+## Configuration
+
+Every `file` node supports the following settings:
+
+`in` specifies the path to a file which contains data for replaying.
+
+`out` specifies the path to a file where samples will be dumped.
+
+`mode`
+
+`rate`
+
+### Example
+
+@todo Add extract of example.conf
+
+## File Format
+
+This node-type uses a simple human-readable format to save samples:
+The format is similiar to a conventional CSV (comma seperated values) file.
+Every line in a file correspondents to a message / sample of simulation data.
+The columns of a line are seperated by whitespaces (tabs or spaces).
+The columns are defined as follows:
+
+ 1. Floating point timestamp in seconds since 1970-01-01 00:00:00 (aka Unix Epoch ).
+ 2. Up to `MSG_VALUES` floating point values per sample. The values are seperated by whitespaces as well.
+
+### Example
+
+@todo Add example dump
diff --git a/documentation/clients/GTFPGA.md b/documentation/clients/GTFPGA.md
index 4352e515d..6235fa811 100644
--- a/documentation/clients/GTFPGA.md
+++ b/documentation/clients/GTFPGA.md
@@ -8,6 +8,14 @@ This board consists of a Virtex 5 FPGA, Ethernet and Fiberoptic MACs and an inte
 
 The PowerPC core is used to forward values between RTDS and the S2SS server.
 
+## Configuration
+
+`slot`
+
+`id`
+
+`rate`
+
 ## Source Code
 
 The source code for the PowerPC is located at:
diff --git a/documentation/clients/OPAL.md b/documentation/clients/OPAL.md
index 0a03cc71f..81bc4e68c 100644
--- a/documentation/clients/OPAL.md
+++ b/documentation/clients/OPAL.md
@@ -5,6 +5,13 @@ Asynchronous programs are are a feature of RT-LAB. They are used to exchange dat
 
 For this purpose the C program handels IP/UDP communication via BSD sockets.
 
+## Configuration
+
+`send_id`
+
+`recv_id`
+
+`reply`
 
 ## Arguments for OPAL-RT block
 
diff --git a/documentation/clients/Socket.md b/documentation/clients/Socket.md
index 40bc49994..a76c19b43 100644
--- a/documentation/clients/Socket.md
+++ b/documentation/clients/Socket.md
@@ -1,12 +1,38 @@
 # Socket
 
-The socket node type is the most comprehensive one. It allows to send / receive simulation data over the network.
-Internally it uses the well known BSD sockets.
+The socket node-type is the most comprehensive and complex one.
+It allows to send and receive simulation data over the network.
+Internally it uses the well known BSD socket API.
 
-The implementation allows to chose the OSI layer which should:
+Please note that only datagram / packet, connection-less based network protocols are supported.
+This means that there's currently no support for TCP!
+
+The implementation supports multiple protocols / OSI layers:
 
  - Layer 1: Raw Ethernet Frames (no routing!)
  - Layer 2: Raw IP (internet / VPN routing possible)
  - Layer 3: UDP encapsulation
- 
- 
\ No newline at end of file
+
+## Configuration
+
+`local`
+
+`remote`
+
+`netem`
+
+`layer`
+
+### Example
+
+@todo Add excerpt from example.conf
+
+## Packet Format
+
+@todo add DIA figure here
+
+### Example
+
+@todo add screenshot of wireshark dump
+
+## Network Emulation