User's Manual Part 1

APCD-LM043-8.0 (DRAFT C) 1
1 Introduction
The LMS4000 system provides 900MHz and 2.4GHz wireless. high-speed Internet
connectivity to business and residential subscribers. This manual, which is specific to the
LMS4000 900MHz Radio Network, provides the following information:
• A detailed description of the operation of the hardware and software
• Guidelines for planning and designing your network
• Instructions for configuring, installing, monitoring, maintaining, and troubleshooting
the 900MHz radio modem
• Support information that you may find useful for operating your network
TIP: The installation of other LMS4000 network equipment is
described in LMS4000 Installation Guide, which can be obtained
from WaveRider.
The LMS4000 900MHz Radio Network, which operates in the 900 MHz ISM band, offers the
following features and benefits:
• Multiple Communication Modes: The LMS4000 900 MHz radio network includes
three different communication modes:
• Routed Mode—This mode has always been available in the LMS4000
network. With routed mode, the CCU acts as an IP router between the
Ethernet and radio subnets and a switch between EUMs.
• Switched Ethernet Mode—In this mode, the CCU acts as an Ethernet switch
between the Ethernet port and the EUMs. It supports PPPoE (Point-to-Point
Protocol over Ethernet), IP (Internet Protocol), and ARP (Address Resolution
Protocol) connections, as well as any number of IP subnets on either or both
sides of the CCU. This mode provides simplicity of operation.
• Through Only Mode—Similar to Switched Ethernet mode, this mode
constrains all traffic to flow only from a radio link to the Ethernet port or vice
versa, not from one radio link to another.
• Excellent Propagation Characteristics: LMS4000 900 MHz radio networks provide
excellent coverage to non-line of sight installations using WaveRider’s proprietary