Sel SEL-787 - Figure 7.1 Simple Ethernet Network Configuration; Figure 7.2 Ethernet Network Configuration with Dual Redundant Connections (Failover Mode)

7.3
Date Code 20150130 Instruction Manual SEL-787 Relay
Communications
Communications Interfaces
Ethernet Port
Use the Ethernet port for interfacing with an Ethernet network environment.
SEL-787 Ethernet port choices include single or dual copper or fiber-optic
configurations. With dual Ethernet ports the unit has an unmanaged Ethernet
switch. Redundant configurations support automatic failover switching from
primary to backup network if a failure in the primary network is detected. In
addition to failover mode, the unit can operate in a “fixed connection (to
netport) mode” or in a “switched mode” (as an unmanaged switch).
Figure 7.1 shows an example of a Simple Ethernet Network Configuration,
Figure 7.2 shows an example of an Ethernet Network Configuration with Dual
Redundant Connections, and Figure 7.3 shows an example of an Ethernet
Network Configuration with Ring Structure.
Figure 7.1 Simple Ethernet Network Configuration
Figure 7.2 Ethernet Network Configuration With Dual Redundant
Connections (Failover Mode)
CAT 5 shielded twisted pair (STP)
cables with RJ45 connectors
(SEL-C627/C628) for
copper Ethernet ports
OR
Fiber-optic Ethernet cables with
LC connectors (SEL-C808) for
fiber-optic Ethernet ports
Set Port 1 (Ethernet) settings in each relay.
NETWORK
NETWORK
Set Port 1 (Ethernet) settin
g
s in each relay.
CAT 5 shielded twisted pair (STP) cables with RJ45
connectors (SEL-C627/C628) for copper Ethernet ports
OR
Fiber-optic Ethernet cables with LC connectors
(SEL-C808) for fiber-optic Ethernet ports