User's Manual
Table Of Contents
- Chapter 1 Introduction
- Features and Benefits
- Transparent Ethernet Bridging with Advanced Filtering for Security and Network Reliability
- IP Routing with Advanced Filtering for Security
- SNMP Management
- SNMP Features
- SNMP Management
- IP-Router Features
- Encryption Features (Add-on Option)
- Wireless Multipoint Protocol
- Additional Functionality for SPEEDLAN 4100 & 4200
- Features
- Chapter 2 Quick Start
- System Description
- Package Contents
- Installation Steps
- Installation Diagram
- Polarizations on a Grid Antenna
- Chapter 3 Hardware
- Upgrading the Firmware
- Chapter 4 Overview of Configurator
- Installation and Setup
- Toolbar and Menus
- Chapter 5 Configuring SPEEDLAN 4100 & 4200
- General Setup
- Interface & Advanced Interface Setup
- The Setup Buttons
- Chapter 6 Bridging Setup
- Bridge Setup
- Chapter 7 Setting Up the IP Addresses (IP Host Setup)
- Part I - Quick Overview of IP Addressing
- Part II - Setting Up the IP Address
- Chapter 8 IP-Router Setup
- IP Routing Setup
- Chapter 9 SNMP Setup
- SNMP Setup
- Chapter 10 System Access Setup
- System Access Setup
- Chapter 11 SNMP Monitoring
- Remote Statistics
- Interface Monitor
- Ethernet-like Interface Monitor
- Campus PRC Station Entries
- 11Mb RF Interface
- SNMP Monitor
- IP Monitor
- IP/TCP/UDP Monitor
- ICMP Monitor
- Chapter 12 Tables
- System Information
- Bridge Learn Table
- IP ARP Table
- IP Route Table
- IP/TCP Connection Table
- IP/UDP Listener Table
- Local IP-Address Table
- Chapter 13 Analyzing Wireless Equipment
- Select Another Device
- Analysis Polling Interval
- Wireless Link Test
- Antenna Alignment
- Glossary for Standard Data Communications
- Glossary for Standard Data Communications
- Appendix Protocols & Ethernet Addresses
- Common Ethernet Protocols
- Common Ethernet Vendor Addresses
- Common Ethernet Multicast Addresses
- Common Ethernet Broadcast Addresses
SPEEDLAN 4100 & 4200 Installation and Operation User Guide
Glossary-7
Forward Error Correction (FEC)
The ability of a receiving station to correct a transmission error. The transmitter sends redundant information along with
the original bits and the receiver uses this information to find and correct errors. This can increase the throughput of a
data link operation.
Framing
Dividing data for transmission into groups of bits, and adding a header and a check sequence to form a frame.
Frequency
The number of complete cycles per second existing in a waveform. Note that frequency is measured in Hertz (Hz).
Frequency Hopping (FH)
A type of spreading technique using a PN code to change the signal’s frequency between several pre-assigned values
(hopping). Although the signal itself looks like a narrow band signal at any given point in time, it acts like a spread signal
because of the frequency hopping.
Fresnel Zone
An imaginary ellipse surrounding the direct transmission path formed by all the points from which a reflected wave would
have an increased path length of multiple of the transmitted signal’s wavelength. At least 60% of the Fresnel zone must be
unobstructed.
Full Duplex
Independent, simultaneous two-way transmission going in both directions.
Gain
The increase in signal power caused by a device such as a transmitter or antenna.
GHz
GigaHertz. Billions of Hertz.
Ground elevation
This is the approximate mean sea level (AMSL) of the terminal.
Half Duplex
A one-way directional communication line going in both directions. Only one signal can be transmitted or received at a
time