User`s guide

Port Profiles
Chapter 3 Configure Network and Serial Ports 33
UDP Sockets Port Profile
The Digi device is capable of UDP multicast. UDP multicast is used to send
serial data over an Ethernet cable to one or many hosts at the same time.
UDP does not need a protocol because it sends data without any form of
acknowledgment of error or error correction.
The number of devices that can receive a UDP multicast varies by product.
• PortServer TS 8/16 Family: up to 16 devices can receive a UDP
multicast at one time.
• All other products, including the Digi One Family and
PortServer TS 1/2/4: up to 64 devices can receive a UDP multicast at
one time.
Both the transmitting and receiving devices must be configured properly for
UDP multicast to work.
Configuring UDP multicast communications involves configuring the Digi
device for the following types of connections:
• Inbound connections, that is, connections that are initiated by the
device on the other side of the network.
• Outbound connections, that is, connections that are initiated by the
device connected to the serial port.
The serial parameters for two connecting devices must match. That is, if
one device is set for 9600 bps, the other device must be set for the same
rate.