Hardware Technical Reference Manual
Specifications
The CIM ports require standard 8-pin modular jacks (RJ-45) consisting of 2 balanced signal
pairs on Category 5 Unshielded Twisted Pair (UTP) crossover cable.
The CIM supports a distance of up to 100 feet or 30 meters between cabinets.
Dual Fiber Interface Module (FIM)
Description
The Dual Fiber Interface Module (FIM) is an electrical/optical interface that receives and
transmits optical signals over fiber optic cable.
Figure 13: Dual Fiber Interface Module (FIM)
The module provides two independent fiber optic connections to peripheral cabinets, NSUs, or
DSUs in any combination. The 1300 nm FIMs cannot be used to connect NSUs. LEDs on the
faceplate indicate the status of each link. For a description of LED status, refer to the 3300 ICP
Technician’s Handbook.
Each FIM variant is identified by its optical wavelength and fiber type (indicated on the FIM).
The same FIM variant must be used at each end of a fiber optic cable. However, a node may
be equipped with different FIM variants to suit the length of each cable run.
The Dual FIM has three functional sections: a transmitter, a receiver, and a control section.
• Transmitter—converts electrical signals from the controller to optical signals for output over
the fiber optic cable.
• Receiver—converts optical signals from the cable to electrical signals for output to the
controller.
Note: You may not install a fiber interface module (FIM) in a CX/CXi Controller or MXe
Server.
To Next Page