Topic
Network termination 1
About: Network termination 1 is a research topic. Over the lifetime, 2 publications have been published within this topic receiving 50 citations.
Papers
Patent•
1 Apr 1998
TL;DR: In this article, the authors proposed an effective way for Telecom operators to provide ADSL service to customers who are receiving POTS service over a pair gain system or who are connected to ISDN.
Abstract: The present invention provides an effective way for Telecom operators to provide ADSL service to customers who are receiving POTS service over a pair gain system or who are connected to ISDN. According to one embodiment of the invention, an ADSL/VDSL (Very High Speed DSL) splitter is integrated in the remote terminal of a pair gain system or in the NT1 (Network Termination 1) of an ISDN BA (Basic Access). Therefore, no extra box on the house and no extra truck roll is required when the customer orders ADSL service. Integrating the splitter makes the telephone line upwards compatible with UADSL since UADSL can be directly connected to an analog telephone line. According to another embodiment of the invention, both the splitter and ADSL/UADSL modems are integrated in the remote terminal of a pair gain system or in the NT 1 of an ISDN BA. The splitter in the telephone company location may also be integrated in the central office terminal (COT) of the pair gain system. According to a further embodiment of the invention, the UADSL signal output of an ADSL splitter in the remote terminal of a pair gain system is connected to an analog POTS port, with appropriate filtering. According to this embodiment, the UADSL signal is connected to all POTS lines coming out of a remote terminal. Connecting the UADSL output of the splitter to the POTS output eliminates the need for additional wiring in the customers house.
49 citations
21 Oct 1990
TL;DR: The authors propose baseline criteria for reliability and backup powering for locally provided power for narrowband integrated services digital network (ISDN) and present a generic topology comprising a power supply, battery charger, and secondary batteries.
Abstract: The evolution to a narrowband integrated services digital network (ISDN) necessitates the installation of additional electronics at the user end of the loop. Providing power and backup power for these electronics (referred to as the network termination 1 (NT1)) offers challenges to designers. One problem is that reliability and backup powering are not currently addressed in a uniform manner in the US. For locally provided power, the authors propose baseline criteria for reliability and backup powering. One generic topology comprising a power supply, a battery charger, and secondary batteries is presented. A backup time of eight hours is proposed with an option for additional backup provided via an extended reserve cabinet using primary or secondary batteries. >
1 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 1998 | 1 |
| 1990 | 1 |