Optical Systems Design OSD2251EP Series Operator's Manual page 20

OPTICAL SYSTEMS DESIGN
To connect the OSD2251EP in a redundant ring configuration ports 3 and 4 must be used together with
fiber SFPs. The non-ring ports (ports 1 & 2) should be used to connect to your Ethernet devices (eg.
Cameras, PLCs, computers, etc.)
Figure 15 shows the connection method. Typically the SFP used would be a fiber SFP with duplex LC
connectors. The dashed line indicates the closed loop, but more OSD2251EP units can be connected to
the ring as required using this topology. Ensure that the switch settings for port 4 and 5 are set to
1000Mbps (1Gbps) – see Table 5.
Connect more OSD2251EP units as required using this topology
FIGURE 15: REDUNDANT RING CONNECTION
Bus Operation
To connect the OSD2251EP in a bus configuration ports 3 and 4 must be used together with fiber SFPs.
The remaining ports (ports 1 & 2) should be used to connect to your Ethernet devices (eg. Cameras,
PLCs, computers, etc.)
Connect more OSD2251EP units as required using this topology
FIGURE 16: BUS CONNECTION
DOC ID: 10119201
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OSD2251EP OPERATOR MANUAL