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6.2 Fiber-Optic Interconnection
The
OPTI
mizer
2
’s
serial port is configured to support the use of Schweitzer fiber-optic transceivers.
A
9-pin female
null modem adaptor must be used between the
OPTI
mizer
2
and the transceiver.
The transceiver will be powered directly from the
OPTI
mizer
2
’s
serial port’s CTS line. No other
programming is needed. The fiber-optic connection labeled “T” on each transceiver should connect to
the fiber-optic connection labeled “R” on the other transceiver.
2814 M
2814 F
TRANSCEIVER
TRANSCEIVER
Male End
Female End
Figure 27: Schweitzer Fiber-Optic Interface
6.3 RS-485
The
OPTI
mizer
2
employs full duplex RS-485 communications, but can be wired for half duplex
communication if needed. The same RS-232 port settings apply to the RS-485 port.
Figure 28: RS-485 Half-Duplex Wiring
Figure 29: RS-485 Full-Duplex Wiring
6.4 Ethernet
The
OPTI
mizer
2
uses a standard 10-Base T / 100-Base T Ethernet connector. A special “crossover
cable” is provided to facilitate connection directly to a computer’s RJ45 port. This cable may not be
suitable for connection to a router or other communication device.