In computer networking, DECserver initially referred to a highly successful family of asynchronous console server / terminal server / print server products introduced by Digital Equipment Corporation (DEC) and later referred to a class of UNIX-variant application and file server products based upon the MIPS processor. In February 1998, DEC sold its Network Products Business to Cabletron, which then spun out as its own company, Digital Networks (later known as Vnetek Communications), in September 2000. Model history DECservers were introduced in 1985. The first model was the DECserver 100. This and all subsequent DECserver models used the Local Area Transport (LAT) protocol which was/is also supported by many DEC operating systems including VMS, RSX-11, RSTS/E and Ultrix (an implementation of UNIX). All DECservers were designed to boot their operating systems across the network using DECnet MOP Maintenance Operations Protocol with later models supporting TCP/IP booting using bootp protocol. Later models also support booting from flash memory cards. Model Option Numbers, Description and History DECserver 100 The DECserver 100 Terminal Server was a network terminal switch for Ethernet Local Area Networks, providing a convenient method to logically connect up to eight DIGITAL asynchronous terminals to one or more service nodes (hosts) on an Ethernet. Through the use of a simple command, users could establish a logical connection, called a session, to any local service node that implemented the LAT protocol. Model Number: DSRVA-** Ports: 8 DB25 Alternate product: DECserver 708, 8 ports DB9, DSRVW-R* DECserver 200 The DECserver 200 was a network terminal switch for Ethernet Local Area Networks, providing a convenient method to logically connect up to eight Digital asynchronous terminals to one or more service nodes (hosts) on an Ethernet. The DECserver 200 also provided the capability to connect host systems that did not support the LAT protocol, Digital personal computers, and dial-out modems directly to ports on the server. The DECserver 200 implemented the Local Area Transport (LAT) protocol for communication with service nodes that implemented this protocol on the same Ethernet. There were two options of DECserver 200 hardware: the DECserver 200/MC, which contained RS-232-C lines with full modem control (DSRVB-AB) and the DECserver 200/DL, which contained DECconnect lines with data leads only (DSRVB-BB). The /DL version delivers these data leads through a single connector (similar to Centronix printer connection). A special cable connects the DECserver to a "harmonica", with the same style of mass-connector, plus 8