Ads
related to: extension switch board with socket & switches set
Search results
Results From The WOW.Com Content Network
PBX switchboard, 1975. A telephone switchboard is a device used to connect circuits of telephones to establish telephone calls between users or other switchboards. The switchboard is an essential component of a manual telephone exchange, and is operated by switchboard operators who use electrical cords or switches to establish the connections.
The DMS-100 is a member of the Digital Multiplex System (DMS) product line of telephone exchange switches manufactured by Northern Telecom. Designed during the 1970s and released in 1979, it can control 100,000 telephone lines. [1] The purpose of the DMS-100 Switch is to provide local service and connections to the PSTN public
Lipartito, Kenneth. “When Women Were Switches: Technology, Work, and Gender in the Telephone Industry, 1890-1920.” American Historical Review 99#4 (1994) pp. 1074–111. ONLINE; Mueller, Milton. "The switchboard problem: scale, signaling, and organization in manual telephone switching, 1877-1897." Technology and Culture 30.3 (1989): 534 ...
EMS-1 (The ITEC Electronic Modular Switch is an electronic direct control switching system. The modules are combined to form a complete switch or any of the modules can be added to your present Step-by-Step Systems.) EMS-2 (The EMS-2 RURAL SWITCH is a stored program control analog switch designed to be cost-effective in small exchanges.
Switches are used in both local central offices and in long distance centers. There are two major types in the Public switched telephone network (PSTN), the Class 4 telephone switches designed for toll or switch-to-switch connections, and the Class 5 telephone switches or subscriber switches, which manage connections from subscriber telephones ...
In August 2011, Brocade introduced two additional products for this family. The Brocade VDX 6730 Switch is a 10 GbE switch which can also use FCoE to bridge VCS Fabrics with Fibre Channel SAN fabrics. The Brocade VDX 6710 Switch is an entry-level 1/10 GbE switch which enables legacy 1 GbE servers to connect to VCS Fabrics as well as traditional ...