TDT RZ2 Manual page 71

System 3
information.
Status LEDs
The UDP Ethernet interface provides several status indicators which are located on
the back of the RZ processor. These status indicators are used to denote a proper
connection to a network, activity or network traffic, or UDP activity such as sending
or receiving packets.
The following table lists the possible status indicators for the UDP Ethernet interface.
Off
Blinking slowly
(once / sec)
Blinking rapidly or solid glow
(several times / sec)
Network Structure
In order to understand how the UDP interface works, a basic understanding of
Internet Protocol (IP) networking is required. As mentioned above, all network
devices require a unique network address, appropriate network mask, and if
communicating between networks, a gateway. Data in IP networks is organized into
discrete packets for transmission or reception. For our purposes, the packet size is
equivalent to the number of channels being transmitted or received.
Status
Green
No network
connectivity
Link connected
LED Color
Orange
No network Remote address
traffic detected set, no activity
Light network Power connected,
traffic is present waiting for remote
address to be set
Heavy network Packet activity
traffic present present
(send or
receive)
RZ-UDP Communications Interface
1-65
Red