Optical Systems Design OSD2251P Series Operator's Manual page 18

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 1G (1000Mbps) SFP
with duplex LC connectors. 100Mbps operation is also available for MMOF setups. 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 3 and 4 are set to the appropriate SFP speed used –
see Table 5.
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.)
Connect more OSD2251P units as required using this topology Connect more OSD2251P units as required using this topology
PAGE 18
OPTICAL SYSTEMS DESIGN
Connect more OSD2251P units as required using this topology
FIGURE 14: REDUNDANT RING CONNECTION
FIGURE 15: BUS CONNECTION
OSD2251P OPERATOR MANUAL
DOC ID: 10115304