29Gigabit interface convertersThis section describes how to install and remove Gigabit InterfaceConverters (GBIC).Navigation• "Selecting a GBIC" (page 29)• "Installing a GBIC" (page 30)• "Removing a GBIC" (page 31)• "GBIC specifications" (page 61)Selecting a GBICUse a GBIC to interface a device motherboard to a fiber optic or unshieldedtwisted pair network cable. Select the appropriate transceiver to provide therequired reach.Procedure stepsStep Action1 Determine the required reach.GBICs are available for cable distances of up to 100 meters (m), 550m, 10 kilometers (km), 40 km, 70 km, and 120 km.2 Determine the required media and connector type.Fiber optic cable is required for any reach over 100 m.Depending on the product, possible media include CAT5, singlemode fiber, and multimode fiber. Possible connectors include SC(subscriber connector) type and RJ-45.3 If the media is optical fiber, determine any wavelength restrictions orrequirements.To expand available bandwidth on a common optical fiber, useCoarse Wavelength Division Multiplexing (CWDM) GBICs.Nortel Ethernet Routing Switch 8600Installation — SFP, XFP, GBIC, and OADM Hardware ComponentsNN46205-305 01.02 Standard4.1 16 November 2007Copyright © 2007, Nortel Networks.