Optical Systems Design OSD2251BP Series Operator's Manual page 18

To connect the OSD2251BP 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 OSD2251BP 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.
Connect more OSD2251BP units as required using this topology
Bus Operation
To connect the OSD2251BP 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 OSD2251BP units as required using this topology Connect more OSD2251BP units as required using this topology
PAGE 18
OSD2251BP OPERATOR MANUAL
OPTICAL SYSTEMS DESIGN
FIGURE 14: REDUNDANT RING CONNECTION
FIGURE 15: BUS CONNECTION
DOC ID: 10119301