Version Description The functional version of the EM6T/EM6F/EM6TA/EM6FA is SL91. Application EM6F/EM6FA/EM6T/EM6TA boards receive and transmit Ethernet services or carry MPLS tunnels. The selection of EM6F, EM6FA, EM6T, or EM6TA boards depends on desired port types. Receiving and Transmitting Ethernet Services EM6F/EM6FA/EM6T/EM6TA boards apply to OptiX RTN 980 NEs to receive and transmit FE/GE services over Integrated IP microwave. The FE/GE services come from customer premises or Layer 2 networks. Figure 1 Application scenario of EM6F/EM6FA/EM6T/EM6TA boards (1) NOTE: IF boards shown in the preceding figure must be general-purpose IF boards or XPIC IF boards working in native E1+Ethernet mode or native STM-1+Ethernet mode. In the preceding figure, if transmitted over Integrated IP microwave, Ethernet services can be native Ethernet services or ETH PWE3 services. Carrying MPLS Tunnels EM6F/EM6FA/EM6T/EM6TA boards carry MPLS tunnels when required, allowing MPLS/PWE3 services traversing radio networks and regional backhaul networks to be transmitted in end-to-end mode. Figure 2 Application scenario of EM6F/EM6FA/EM6T/EM6TA boards (2) NOTE: IF boards shown in the preceding figure must be general-purpose IF boards or XPIC IF boards working in native E1+Ethernet mode or native STM-1+Ethernet mode. If required, create two MPLS tunnels on both the packet radio network and regional backhaul network so PWE3 services are transmitted on MS-PWs in end-to-end mode. Service boards shown in the preceding figure can be Smart E1 processing boards or Ethernet interface boards. Functions and Features The EM6T/EM6TA/EM6F/EM6FA receives/transmits, processes, and converges four channels of FE signals and two channels of GE signals. The GE ports on the EM6F/EM6FA can house FE small form-factor pluggable (SFP) optical modules to provide access for two channels of FE optical signals. Table 1 lists the functions and features that the EM6T/EM6TA/EM6F/EM6FA supports. The EM6T/EM6TA/EM6F/EM6FA needs to work with the packet switching unit of the system control, switching, and timing board to implement Ethernet service functions.
