User's Manual

Table Of Contents

Installation and Initialization Tsunami MP.16 3650 System User Guide

Hardware Description

The BS and SS equipment consists of a radio, power adaptor, and external antenna connectors (on some SS models).

See Product Package for a full list of included components.

The BS radio provides a wireless link between an Ethernet connection and SSs registered to the BS. It is installed

outdoors in close proximity to its antenna so that the RF cable connection to the antenna has minimal loss. The power

adaptor powers the BS over the PoE CAT5 cable. It also provides an Ethernet connection with the same PoE CAT5

cable, and the power adaptor’s second RJ45 connector connects the 100Base-T data signals to the backhaul network.

The BS comes with a Type-N connector to attach external antennas. A single omni-directional antenna or multiple sector

antennas (in combination with additional BSs) may be used to provide 360 degrees of coverage.

The SS radio provides a wireless non-line-of-site connection with the BS. A CAT5 cable connects the SS to the user’s

switch/router through the power adaptor to provide DC power to the radio and 100/10Base-T Ethernet service between

the radio and a switch/router. This data port can be connected to either a single Ethernet host or to an Ethernet switch so

that the SS can address multiple Ethernet hosts. The SS comes with an integrated panel antenna or a Type-N antenna

connector to enable the use of external antennas. External antennas may be used to provide greater range.

See the following:

• Base Station Radio

• Subscriber Station Radio

• Base Station/Subscriber Station LEDs

• Power Adaptor

• Antennas

• Serial Connection

Base Station Radio

The BS radio operates in one of 744 possible frequency channels set by the user in the licensed 3.65 - 3.675 GHz bands,

and time duplexes between transmitting downlink bursts to SSs and receiving uplink bursts from SSs.

The major functions of the BS radio include:

• Signal Radiation/Reception: An external antenna receives downlink and radiates uplink RF signals.

• Upconversion/Downconversion: Received RF signals are amplified and downconverted to baseband for

demodulation; modulated uplink signals from baseband to RF are upconverted and amplified to a controlled power

level.

• Modulation/Demodulation: Downlink MAC protocol data units (PDUs) are Forward Error Correction (FEC) encoded

and modulate the baseband downlink. Uplink bursts received from SSs are demodulated and FEC decoded into MAC

PDUs. The demodulation function also includes carrier-frequency, symbol-timing synchronization, and channel

equalization.

• Wireless MAC Functions: Control and traffic data from the Ethernet services are formatted into MAC PDUs and

assembled into downlink bursts. Uplink bursts received from SSs are parsed into MAC control messages and traffic

SDUs destined for the Ethernet service. The MAC also controls frame synchronization, SS network entry, SS ranging

and power control, bandwidth requests, QoS scheduling, encryption, and key management.

• Network Services: Services to connect a 10/100Base-T Ethernet interface to the wireless network include the

following capabilities: bridging, VLAN awareness, ICMP, and PPPoE.

• BS Management: Configuration and dynamic control of the BS are provided via a command line interface (CLI), an

HTTP GUI, and SNMP. Performance and status data can be displayed to enable a local or remote operator to

determine the operational status, usage, and link performance of the BS and its active SSs.