ICP DAS USA RS-405/405F - Manual (Page 10)

Industrial Redundant Ring Switch – RS Series User Manual
TDRS4050601 c
PCM Acronym for Pulse-Coded Modulation, a means of converting analog
to digital form.
RING Path or channel; usually electrical, where devices along the path
receive transmissions sequentially from one device to the next along
the ring.
RS-232 An interface used between DTE and DCE employing serial binary
data interchange, defined by EIA, aka. EIA-232. Similar to standard
V.24 of CCITT.
RS-422 Standard defined by EIA, aka. EIA-422. Deals with the electrical
characteristics of balanced voltage digital interface circuits. Similar to
standard V.11 of CCITT.
RS-423 Standard defined by EIA, aka. EIA 423. Deals with electrical
characteristics of unbalanced voltage digital interface circuits. Similar
to standard V.10 of CCITT.
RS-449 Standard defined by EIA, aka. EIA-449. Deals with general-purpose
37- and 9-position interface for data terminal equipment and data
circuit-terminating equipment employing serial binary data
interchange.
RS-485 Standard defined by EIA, aka. EIA-485. Standard for electrical
characteristics of generators and receivers for use in balanced
multipoint systems.
RTS Acronym for Request To Send.
SCADA Acronym for Supervisory Control and Data Acquisition.
SNMP Acronym for Simple Network Management Protocol. A standard
management protocol used to provide a common means of managing
network devices.
SONET Acronym for Synchronous Optical NETwork, is a hierarchical standard
for a high speed (45 Mbps to 2.4 Gbps) transport network.
T1 Transmission rate standard for telephony or data communications
circuits. T1 operates at 1.544 Mbps speed. Usually this circuit is
subdivided into many 64 Kb channels.
TCP/IP Acronym for Transmission Control Protocol/Internet Protocol.
WAN Acronym for Wide Area Network, a computer network interconnected
over distances beyond a city or metropolitan area.
802.3 Commonly referred to as Ethernet. It is a local area network protocol
that operates at 10Mbps.
802.5 Commonly referred to as Token Ring. Operates at either 4 or 16Mbps.