diff --git a/server/etc/example.conf b/server/etc/example.conf
index 73b8193c9..22ce22dc1 100644
--- a/server/etc/example.conf
+++ b/server/etc/example.conf
@@ -32,13 +32,11 @@ stats = 3;						# The interval in seconds to print path statistics.
 
 nodes = {
 	udp_node = {					# The dictionary is indexed by the name of the node.
-		type	= "socket",			# Type can be one of:
-							#   socket
-							#   opal
-							#   file
-							#   gtfpga
+		type	= "socket",			# Type can be one of: socket, opal, file, gtfpga, ngsi
+							# Start the server without arguments for a list of supported node types.
 		
 	### The following settings are specific to the socket node-type!! ###
+
 		layer	= "udp"				# Layer can be one of:
 							#   udp		Send / recv UDP packets
 							#   ip		Send / recv IP packets
@@ -54,6 +52,7 @@ nodes = {
 		type	= "socket",			# See above.
 		
 	### The following settings are specific to the socket node-type!! ###
+
 		layer	= "eth",
 		local	= "*:12002",			# It's possible to use an '*' for both the port and address
 							# in UDP / TCP and IP modes.
@@ -75,6 +74,7 @@ nodes = {
 		type	= "opal",			# from within an OPAL-RT model.
 		
 	### The following settings are specific to the opal node-type!! ###
+
 		send_id	= 1,				# It's possible to have multiple send / recv Icons per model
 		recv_id	= 1,				# Specify the ID here.
 		reply = true
@@ -83,6 +83,7 @@ nodes = {
 		type	= "file",
 		
 	### The following settings are specific to the file node-type!! ###
+
 		mode	= "w+",				# The mode in which files should be opened (see open(2))
 							# You might want to use "a+" to append to a file
 		
@@ -107,6 +108,7 @@ nodes = {
 		type = "gtfpga",
 		
 	### The following settings are specific to the gtfpga node-type!! ###
+
 		slot = "01:00.0",			# The PCIe slot location (see first column in 'lspci' output)
 		id = "1ab8:4005",			# The PCIe vendor:device ID (see third column in 'lspci -n' output)
 		
@@ -115,17 +117,23 @@ nodes = {
 	ngsi_node = {
 		type = "ngsi",
 		
-	### The following settings are specific to the gtfpga node-type!! ###
-		endpoint = "http://46.101.131.212:1026",	# The HTTP / REST endpoint of the FIRWARE context broker
+	### The following settings are specific to the ngsi node-type!! ###
 
-		mapping = [					# Format: "entityID(entityType).AttributeName(AttributeType)"
-			"rtds_sub1(voltage3).v1(float)",
-			"rtds_sub1(voltage3).v2(float)",
-			"rtds_sub1(voltage3).v3(float)",
-			"rtds_sub2(power3).p1(float)",
-			"rtds_sub2(power3).p2(float)",
-			"rtds_sub2(power3).p3(float)"
+		endpoint = "http://46.101.131.212:1026",# The HTTP REST API endpoint of the FIRWARE context broker
+		timeout = 5,				# Timeout of HTTP request in seconds (default is 1)
+		structure = "children",			# Structure of published context (default is "flat")
+		verify_ssl = false,			# Verification of SSL server certificates (default is true)
+
+		mapping = [				# Example mapping for structure = flat
+			"rtds_sub1(V2).v2(float)",	# Format: "entityId(entityType).AttributeName(AttributeType)"
+			"rtds_sub2(power).p1(float)"
 		]
+		# mapping = [				# Alternative mapping for structure = children
+		#	"fa846ed3-5871-11e5-b0cd-ecf4bb16fe0c(GridSectionDataValue).value(float)", # Index #0
+		#	"1d2c63e4-6130-11e5-9b0d-001c42f23160(GridSectionDataValue).value(float)"  # Index #1
+		#	                            ....                                           # Index #n
+		#	   (every line correspondents to one value)
+		#] 
 	}
 };