System options 15System optionsThis document includes information on the following Large Systems:• CS 1000M HGand Meridian 1 Option 51C: enhanced common controlcomplex, single CPU, and one half network group• CS 1000M SG, Meridian 1 PBX 61C CP PIV, and Meridian 1 Option61C: enhanced common control complex, dual CPU, and onefull-network group• CS 1000M MG, Meridian 1 PBX 81C CP PIV, Meridian 1 Option 81,and Meridian 1 Option 81C: enhanced common control complex, dualCPU, and multiple-network groupsThese systems are available in AC- and DC-powered versions.CS 1000M HGand Meridian 1 Option 51CThe CS 1000M HGand the Meridian 1 Option 51C are single-CPU systemswith a half-network group. One Core/Network module and one IPEmodule are required. Additional IPE modules, Remote IPE modules, andapplication modules can be used.Table 2 "Specifications for CS 1000M HGand Meridian 1 Option 51C"(page 17) lists the specifications for these systems. Figure 1 "Meridian 1Option 51C" (page 16) illustrates an Option 51C system.With the addition of a Signaling Server, Meridian 1 Option 51C becomesa CS 1000M HG. Figure 2 "CS 1000M HG" (page 16) on Figure 2 "CS1000M HG" (page 16) illustrates a CS 1000M HG.Nortel Communication Server 1000Communication Server 1000M and Meridian 1 Large System OverviewNN43021-110 02.05 Standard30 September 2008Copyright © 2003-2008 Nortel Networks.