Interfacing the network
Does your organisation have an optical backbone or does it lease a large dark fibre capacity from an operator? If so, you know that it cannot provide the appropriate interface for all users and applications across the network. Many types of interface do not simplify matters - in fact the contrary is true.
Access systems associated with Wide Area Networks (WAN) used with large SDH or ATM networks can help by providing an excellent additional solution to give users the network connection they need. Whatever your network needs, Tein Telecom has the experience and expertise to find you a solution.
Technologies in which Tein Telecom has been closely involved over the years include:
Time Division Multiplexing
TDM-based systems reserve part of the bandwidth for each user and ensure it is offered it with the correct physical interface. This enables you to provide static links between it and other users or systems.
Applications include nx64k leased lines for data links or telephone and ISDN connections.
Digital Subscriber Line Access Multiplexer (DSLAM)
Operators use DSLAMs to bundle various xDSL connections (e.g. ADSL and VDSL) to a high-speed ATM link. Thus DSLAMs may be considered to be concentration points over transport networks.
Access Synchronous Digital Hierarchy (SDH) solutions
While mainly used for large backbone networks, SDH technology is increasingly expanding into the access side of the network. Small STM-1 (155Mbps) multiplexers provide you with transport potential for applications such as E1 or Ethernet links. This brings you the benefit of a significant advantage of SDH: a redundant network with extremely fast switchover times in the event of incidents such as a fibre fault.
Analogue Interfaces on the IP Backbone
The current trend towards ever-greater use of TCP/IP as the transport technology also has an impact on the access equipment. TDM over IP equipment enables you to transport traditional access interfaces such as RS232, E&M, analogue voice (with or without compression), etc. without needing to invest in expensive new routers.
TDM over IP also causes very little signal delay, making it an ideal solution for time-critical applications such as telephony.
