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1.0 FOM-2000-UM Single-Mode or Multi-
Mode Fiber Module
Add the FOM-2000-UM to the FNC-2000 network interface controller to allow the use of
single-mode or multi-mode fibers in a FleX-Net™ or MMX™ network. Plug-in optical modules
allow for cost-effective network configurations made of fiber only or a mix of wires, single-
mode fibers and multi-mode fibers.
The FOM-2000-UM is compatible with LC Duplex terminated fiber pairs or patch cords.
Installation in a FleX-Net™ or MMX™ network requires FNC-2000 network interface
controllers but no system configuration change or special firmware.
1.1 Important Application Information
See section 5 on page 12 for specifications, including maximum lengths.
Published fiber attenuation figures do not include losses due to fiber splices, connectors, or
patch cords. Never mix fiber types in the same link. Patch cords should be of the same type as
the fibers. Match optical modules to fiber types.
When the job specifications require the use of a pre-existing link, the provider should certify in
advance that the attenuation is within the optical budget specified in section 5 on page 12.
Measurements should be done with the link fitted with the patch cords and connectors that will
be used for the fire alarm system. For new links, the fiber contractor should be consulted to
insure he can meet the budget with the complete link.
1.2 System Components
Picture Model Description
FOM-2000-UM
The FOM-2000-UM allows for single-
mode or multi-mode fiber optic
communication on a FleX-Net™ or
MMX™ network.
FOM-CONN-SM Fiber Optic Module Connector -
Single Mode (pack of 2)
FOM-CONN-MM Fiber Optic Module Connector - Multi
Mode (pack of 2)
FNC-2000
The FNC-2000 Fire Network
Controller board provides network
capability for the FleX-Net™ or
MMX™ network. The FOM-2000-UM
is connected to the FNC-2000.
