User manual

001-5099-000 HiPR-900 User Manual

PHY A PHY chip (called PHYceiver) provides interface to the Ethernet transmission

medium. Its purpose is digital access of the modulated link (usually used together

with an MII-chip).

The PHY defines data rates and transmission method parameters.

Ping Packet Internet Groper - An Internet utility used to determine whether a particu-

lar IP address is online.

PLC Programmable Logic Controller. A user-provided intelligent device that can

make decisions, gather and report information, and control other devices.

PoE Power over Ethernet. Technology that allows the electrical current, necessary for

the operation of each device, to be carried by the wired Ethernet LANs data

cables rather than by power cords.

Powered Device Device that is drawing power from an Ethernet cable. A powered device is com-

patible with both midspan PSE and endspan PSE; it is insensitive to polarity

PWR LED Indicates presence of PoE or DC power input.

RIPv2 Dynamic IP routing protocol based on the distance vector algorithm.

Router A networking device that connects multiple networks together.

RS-232 Industry–standard interface for data transfer.

RSSI Received Signal Strength Indication- an indicator of the strength of the received

signal. Units are dBm. The lower the number the stronger the signal.

RTU Remote Terminal Unit. A user-provided SCADA device used to gather informa-

tion or control other devices.

SCADA Supervisory Control And Data Acquisition. A general term referring to systems

that gather data and/or perform control operations.

Smart Combining Digital processing method used to combine “Spatial Diversity” signals to optim-

ize performance.

SNMP Simple Network Management Protocol. Provides a means to monitor and control

network devices, and to manage configurations, statistics collection, perfor-

mance, and security.

SNTP Simple Network Time Protocol - Protocol for synchronizing the clocks of com-

puter systems over packet-switched, variable-latency data networks. Uses UDP

as its transport layer.

Spatial Diversity Composite information from independent diversity branches using antennas

spaced apart is used with “Smart Combining” to minimize fading and other unde-

sirable effects of multi-path propagation.

Spread Spectrum Wideband radio frequency technique used for reliable and secure data transmis-

sion.

Static IP Address A fixed address assigned to a computer or device that is connected to a network.

Static Routing Forwarding data in a network via a fixed path.

Subnet Mask An Ethernet address code that determines the size of the network.

Switch A data switch that connects computing devices to host computers, allowing a

large number of devices to share a limited number of ports.

Sync Data transmitted on a wireless network that keeps the network channels synchro-

nized.

TCP Transmission Control Protocol - A network protocol for transmitting data that re-

quires acknowledgement from the recipient of data sent.