This is a versatile switch which is cost-effective for the duties that it was created for. It is a digital switch that services suburban and rural areas. It is in service internationally as well as in the US (rural and suburban areas). It allows access to local and long-distance service. It can handle up to 12,000 subscribers. It is the smallest of the DMS family.
The purpose of the DMS-100 Switch is to provide coverage and connections to the public network. It is designed to deliver services over subscribers lines and trunks. It provides POTS (Plain Old Telephone Service), along with very sophisticated business services such as ACD (Automatic Call Distribution), ISDN (Integrated Service Digital Network), and MDC (Meridian Digital Centrex).
The DMS-200 switch has toll capabilities, it is used for toll-center applications. It provides TOPS (Telephone Operator Position System) which is the world's premier operator service, from Northern Telcom.
Simply, this combines the DMS-200 Toll capabilities and applications, with the DMS-100 public networking, which makes it possible for this switch to service subscriber lines, long distance circuits with toll applications.
This is the long distance tandem switch that connects long distance calls. It is used by the interexchange carriers. It is powerful, and they are used to connect most of the U.S. population.
This is the international exchange, which gates calls internationally. It provides the most advanced range of international services. This international digital switch can interface with almost *any* country in the world. Talk about power. It is known as the International Gateway System.
This is faster, and can handle more throughput that the DMS-100.
This is a reduced size Supernode system, it has a DMS-Core processing engine, DMS-Bus high-speed messaging component, the Link Peripheral Processor (LPP), and the Enhanced Network non-blocking switching network (ENET), which makes it a cost effective system, combined all into one compact unit.
Northern Telecom's Cellular Switch. The DMS-MTX was the first cellular switch in Northern American offered to subscribers.
Below will be a simple, common setup of dms systems to form a wide range communications system.
DMS-100 ----------------- DMS-200 ----------------- DMS-250 (end office) /(Tandem office) (ld services) / | / | / | / | / DMS-300 DMS-Supernode ---------- DMS-100 (int services) (maint,billing) / | \ | (subscriber lines) | +--- International Gateway
DMS Applications and Markets Switch Application Class Market ------- --------------------------- --------- ------------------------- DMS-100 End Office 5 Local Exchange Carriers DMS-200 Toll Office 4 Local Exchange Carriers DMS- 100/200 End Office/Toll Office 5 Local Exchange Carriers DMS-250 Tandem Toll Center 4,3,2,1 Interchange Carriers DMS-300 International Gateway CTI-3,CTX Int. LD Carriers DMS-MTX Mobile Telephone Center Cellular Servers Meridian ACD Srvr Adjunct ACD Switch Local Exchange Carriers