Schweitzer Engineering Laboratories SEL-787-2 Manual page 23

Ethernet Network Architectures
Cat 5 shielded twisted pair (STP)
cables with RJ45 connectors
(SEL-C627/C628) for
copper Ethernet ports
Fiber-optic Ethernet cables with
LC connectors (SEL-C808) for
fiber-optic Ethernet ports
SEL-787 SEL-787
SEL-787 SEL-787
Figure 33 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
Fiber-optic Ethernet cables with
LC connectors (SEL-C808) for
fiber-optic Ethernet ports
SEL-787 SEL-787
Figure 34 Ethernet Network Configuration With Ring Structure (Switched Mode)
Schweitzer Engineering Laboratories, Inc.
NETWORK
Ethernet Switch
OR
Set Port 1 (Ethernet) settings in each relay.
Figure 32 Simple Ethernet Network Configuration
NETWORK
Cat 5 shielded twisted pair (STP) cables with RJ45
connectors (SEL-C627/C628) for copper Ethernet ports
Fiber-optic Ethernet cables with LC connectors
(SEL-C808) for fiber-optic Ethernet ports
Ethernet Switch A
Set Port 1 (Ethernet) settings in each relay.
NETWORK
OR Ethernet Switch (Managed)
Set Port 1 (Ethernet) settings in each relay.
OR
Ethernet Switch B
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SEL-787-2, -3, -4 Data Sheet