58 Metro Ethernet Routing Switch 8600 modulesThe 8683POSM module supports R and M mode. For specific R and Mmode configuration requirements, see "R mode configuration requirements"(page 24) and "M mode configuration requirements" (page 23).8683XLR moduleThe 8683XLR module ("8683XLR module" (page 58)) provides threebays for installing 10 Gigabit Ethernet small form factor pluggable (XFP)transceivers. The 10GBaseR port (10.3 Gb/s LAN PHY) operates infull-duplex mode and provides transmission ranges of up to 10 km using9/125 μm single-mode fiber cable.The 8683XLR module is comprised of three forwarding engine lanes.Each lane supports 10 Gb/s bidirectional traffic. All three ports may runconcurrently at 10 Gb/s.ATTENTIONNortel recommends that you install only one 10GBaseZR/ZW on the 8683XLRand 8683XZR due to cooling limitations. Nortel further recommends that youinstall the XFP only in port 1. You can install a 10GBaseSR, -LR/LW, or -ER/EWin one or both of the remaining ports.8683XLR moduleThe 8683XLR module supports up to three 10 Gigabit Ethernet small formfactor pluggable (XFP) transceivers.Although some of the XFPs are LAN/WAN (that is, LR/LW, ER/EW, ZR/ZW)this module only makes use of the LAN functionality.Nortel qualified the XFPs listed in "8683XLR qualified XFP transceivers"(page 58).8683XLR qualified XFP transceiversXFP order number XFP typeAA1403005 10GBaseSRAA1403001 10GBaseLRNortel Metro Ethernet Routing Switch 8600Installation — ModulesNN46220-306 02.02 Standard4.2 7 July 2008Copyright © 2005-2007, Nortel Networks.
