IFP-300 Series Manual — P/N LS10145-001SK-E:C 4/6/2022 65
SK-NIC Wiring Options Networking
5.3 SK-NIC Wiring Options
Networking a group of IFP-300 panels requires the use of a network interface card with each panel. The SK-NIC connects to other net-
worked units using unshielded, twisted-pair wiring or fiber-optic cable.
5.3.1 Fiber Loop Modules
Two types of fiber- optic modules are available to use to transmit and receive communication with the SK-NIC. For more information, see
the SK-FML/ SK-FSL Installation Instructions P/N LS10178-001SK-E.
The SK-FML (Fiber-Optic Multi-Mode) and SK-FSL (Fiber-Optic Single-Mode) are plug-in fiber loop modules. The two types of fiber optic
modules are used as one channel to transmit or receive communications with the SK-NIC, ARCNET communication circuit.
The following describe the two types of fiber optic modules.
• The SK-FML is a fiber module that allows the multi-mode fiber to network between nodes.
• The SK-FSL is a fiber module that allows the single-mode fiber to network between nodes.
FACP FACP FACP
SK-NIC SK-NIC SK-NIC
Class B wiring
Class A wiring
Figure 5.2 Internal SK-NIC Wiring Option
Figure 5.3 SK-NIC Network Interface Card
SK-FSL Single-Mode Fiber Module SK-FML Multi-Mode Fiber Module
Figure 5.4 Types of Fiber Loop Modules
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