21Meridian SL-100 general functionsThe Meridian SL-100 system consists of the following functional areas:• SuperNode and SuperNode SE system functionality• Network Modules• Peripheral Modules• maintenance and administration areaThe main functional areas of the Meridian SL-100 system are connected bylinks carrying speech samples and control messages in the form of serialdigital data. Each link provides a two-way (four-wire) transmission path for32 channels of Time Division Multiplexed (TDM) data.The speech links have 30 channels for transmission of Pulse CodeModulation (PCM) speech samples and two channels for control messages.The message links have all 32 channels assigned exclusively to controlmessages.This chapter contains the following sections:• "System functionality" (page 21)• "Network modules" (page 25)• "XA-Core" (page 27)• "Enhanced Network (ENET)" (page 30)• "Link Peripheral Processor" (page 34)• "Peripheral Modules" (page 37)System functionalityBoth the full-sized SuperNode and the SuperNode SE systems consist oftwo hardware elements (core and bus) and one software element (link), asillustrated in Figure 5 "Functional areas of the Meridian SuperNode system(one of duplicated planes)" (page 23) and Figure 6 "Functional areas of theMeridian SuperNode SE system with internal 16K ENET and optional LIUs(one o" (page 24), and described in the following paragraphs.Communication Server 2100Meridian SL-100 Product Guide555-4001-103 20.01 StandardSE09 20 October 2006Copyright © 2006, Nortel Networks Nortel Networks Confidential.
