4.2 System Architecture

SDS consists of an active/standby pair of SDS servers in an HA configuration, a third SDS server configured as a Query server, an optional DR SDS, redundant DP SOAM servers, and up to 10 DPs (Database Processor) servers. An SDS can have up to 32 sites, each capable of supporting up to 512 remote signaling points.

This figure provides an overview of the SDS architecture.

Figure 4-1 SDS System Diagram