User's Manual

FT-512 Trailblazer Installation and User Manual version 1.08 53
A feature that allows the slave to be configured from the master or VT-100
compatible terminal.
router
A device that supports LAN-to-LAN communications. Routers may be
equipped to provide frame relay support to the LAN devices they serve. A
frame-relay-capable router encapsulates LAN frames in a frame relay frames
and feeds those frame relay frames to a frame relay switch for transmission
across the network. A frame-relay-capable router also receives frame relay
frames from the network, strips the frame relay frame off each frame to produce
the original LAN frame, and passes the LAN frame on to the end device. Routers
connect multiple LAN segments to each other or to a WAN. Routers route traffic
on the Level 3 LAN protocol (e.g., the internet protocol address). See also bridge.
sealing current
A designation for a powering situation that consists of a wet loop without span
power.
service
The provision of telecommunications to customers by a common carrier,
administration, or private operating agency, using voice, data, and/or video
technologies.
SNMP
simple network management protocol. A control and reporting scheme widely
used to manage devices from different vendors. SNMP operates on top of the
Internet protocol.
switched network
The network of dial-up telephone lines using circuit switching to provide
communications services to network users.
synchronous
Communications in which the timing is achieved by sharing a single clock. Each
end of the transmission synchronizes itself with the use of clocks and information
sent along with the transmitted data.
synchronous data link control (SDLC)
A link-level communications protocol used in an international business
machines (IBM) systems Network Architecture (SNA) network that manages
synchronous, code-transparent, serial information transfer over a link connection.
SDLC is a subset of the HDLC protocol developed by ISO.
TELNET
The standard TCP/IP remote login protocol
VT-100
A non-intelligent terminal or terminal emulation mode used for asynchronous
communications.