User's Manual
Introduction
Trango Broadband Wireless — User Manual M2400S Rev. A
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Section 1 Introduction
Your Trango Broadband M2400S radio system provides a reliable and robust means to deliver
broadband access and wireless Ethernet connectivity to a wide geographic region. This section will
familiarize you with basic operational concepts as well as an overview of the hardware and the various
components of the M2400S system.
Overview
The M2400S is a highly versatile and cost effective outdoor point-to-multipoint solution for wireless
broadband service providers’ enterprise connectivity applications. The M2400S delivers 5 Mbps over the
air, and operates in the 2.4 GHz license free ISM band. Each radio includes an integrated dual polarized
(horizontal and vertical) antenna as well as a connector for the attachment of an external antenna such
as a yagi or an omni style antenna. Note: If you are going to install an external antenna, refer to
the M2400S Professional Installation Guide. Contact technical Support for access to the
Professional Installation Guide.
The M2400S system consists of two types of radios: Access Points (AP) and Subscriber Units (SU). Up
to 126 subscriber units can be supported by a single AP, which acts as a hub in a star configuration. The
AP delivers wireless broadband service (Ethernet connectivity) to one or more SUs according to a
proprietary adaptive dynamic polling algorithm called SMARTPolling™. Network operators can co-locate
multiple APs at a single cell site, thus increasing the aggregate throughput available at each wireless
point of presence (POP).
Typical Deployment
The AP typically resides at the center of the point-to-multipoint (PMP) network and performs all
management functions including the allocation of bandwidth for all associated SUs. The M2400S AP
provides a host of comprehensive tools and functions.
The M2400S system is classified as a Layer 2 multi-point bridge thus all forms of Ethernet traffic and
unlimited IP addresses will pass seamlessly over the system. There is no limitation on the number of IP
addresses or hardware devices to which an individual subscriber unit may be connected.
Authentication of subscriber units is performed using a secure, proprietary method which is based on the
MAC address of the subscriber units. In order to establish a wireless link the MAC address of the SU
must be present in the Access Point’s SU database.
Both APs and SUs are IP addressable and can be managed remotely across the network. Users can
manage the radios using the telnet command line interface or the graphical HTTP browser interface.
The M2400S also provides remote firmware upgrade capability utilizing TFTP. APs include a full
featured SNMP agent for monitoring and control of both APs and SUs via SNMP.