Remreed Switching Networks for No. 1 and No. 1A ESS: Remreed Network Electronic Control

Remreed Switching Networks for No. 1 and No. 1A ESS: Remreed Network Electronic Control By D. DANIELSEN and W. A. LISS ( M a n u s c r i p t r e c e i v e d N o v e m b e r 11, 1975) The new remreed network ivas designed to reduce the cost and the size of the No. 1 ESS network. It uses a new self-latching sealed contact and a new switch-package design. This new package includes components directly related to the control of the switch. Remreed network control, the subject of this paper, is all electronic. It uses a mixture of silicon integrated circuits and discrete circuits to accomplish its control functions. The network topology and vwdularity has not been changed. The design was undertaken with the goal of complete compatibility with all existing system programs, including fault-recognition and diagnostic programs. This has permitted the addition of remreed networks to existing No. 1 ESS offices with no program changes or modification of ferreed networks. The resulting remreed-ferreed mix is operated and maintained by the same software. The new network offers reduced manufacturing costs, simplified installation, improved reliability and maintainability, and a 3:1 to 4:1 space reduction.