Add a Remote Device or Segment to an EIA-485 Network
Mount one SEL-2820 near the existing EIA-485 network and a second SEL-2820 near the location of the new subnetwork or device. Connect with SEL-C805 Multimode 200μm Core Fiber-Optic Cables, and apply 5–30 Vdc power.
Connect an EIA-232 Port to an EIA-485 Network
Use an SEL-2800 Fiber-Optic Transceiver, SEL-C805 Fiber-Optic Cable, and an SEL-2820 for a safe, isolated connection to an EIA-485 network. Mount the SEL-2800 on an EIA-232 port on a relay,
information processor, or other device. Install an SEL-2820 in the EIA-485 network, up to 500 meters away. Connect the SEL-2800 to the SEL-2820 with a two-fiber SEL-C805 Fiber-Optic Cable, and apply power to the SEL-2820.