OPTICAL SYSTEMS DESIGN
DOC ID: 10115303
OSD2251P OPERATOR MANUAL
PAGE 19
To connect the OSD2251P 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 14 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 OSD2251P 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.
FIGURE 14: REDUNDANT RING CONNECTION
Bus Operation
To connect the OSD2251P 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.)
FIGURE 15: BUS CONNECTION
Connect more OSD2251P units as required using this topology
Connect more OSD2251P units as required using this topology
