User's Manual

NETNode
Phase 1 and 2 Units
NETNode
User Manual
NETNode-V2.3
2-57
DS000034 Unclassified
4.7.4. SAP Address
This text box enables you to change the value of SAP/ SDP multicast address used by the
unit.
The default value is 224.2.127.254 and the port used is 9875.
These are standard multicast values for such parameters, and it is recommended they are
not changed unless specifically required due to routing restrictions.
4.7.5. Port
Protocols like TCP or UDP use port numbers in the header to direct traffic around the
network. Low port numbers are used by computer systems for predefined tasks. For example
SMPT (for your email service) uses port 25.
A good rule is to use numbers above 10,000 to avoid conflict with existing services.
When you set up a port number on several computers on a network they will all listen for
packets directed to that port.
The default value is random.
4.7.6. Service Name
This text box lets you name the multicast stream as delivered in the SAP/SDP packets from
the unit. Default is MPEG Stream.
4.8. Configuration Tabs – Data RS232/RS485 Pane
The NETNode can send and receive data through either of its RS232 serial port, and its
RS485 serial port (V2.1 onwards). Configuration of the RS232 port is found under the
Global Settings tab (see Section 4.4.2 Control/Data Port).
It is possible to configure the system to send data from one NETNode serial port to another
NETNode serial port or from a NETNode to a PC connected on the same IP network.
4.8.1. Data Mode
The Data Port can be configured in three ways:
 Off
 UDP
 TCP server
 TCP client (V2.1 onwards)
4.8.1.1. Off
Data transfer is switched off.