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CITY OF PLEASANT HILL WIRELESS WAN DATA COMMUNICATIONS SYSTEM EXHIBIT C -6 IMPLEMENTATION PLAN Santa Ana Fire is responsible for the performance of all existing and Santa Ana Fire provided hardware that will be interfaced with or integrated into the various subsystem implementations for this project. 1.7 ASSUMPTIONS 1.7.1 Project Schedule Motorola intends to complete the project as efficiently as possible, in the interest of all parties. The project schedule will be reviewed in detail at the Design Review with Santa Ana Fire. An agreed upon final project schedule will be provided after the Design Review. 1. 7.2 RF System Design Since 802.1 lb and 802.11g WLANs reside in the 2.4 GHz unlicensed (ISM) radio frequency band, other products that transmit energy in the same frequency spectrum can potentially provide some measure of interference. Other products that might cause interference in the 2.4 GHz band are: microwave ovens, Bluetooth enabled devices, cordless phones, HomeRF, and the co- location of multiple wireless LANs. Therefore coverage and interference of a system using the 2AGHz unlicensed band can not be guaranteed. Should interference occur from outside sources, Motorola can provide additional analysis, measurement, and recommendation services to improve or correct such interference through a Change Order to the project. 1.7.3 Technical Assumptions The following technical assumptions were taken into consideration during the development of this proposal: i hi the absence of application and load profiles Motorola has designed the system to perform at a certain average bit rate. This bit rate corresponds to Motorola's best estimate of required throughput in order to support the anticipated applications. ■ All applications can run over an IP network K Where available, Santa Ana Fire will allow the use of Frame Relay, TI or other network infrastructure(s) for backhaul purposes. This design assumes Santa Ana Fire will provide T -I connectivity for backhaul from all Fire Stations. Exhibit C -6, Implementation Plan Page C6 - 8 05/2/05 CN: 05 -17505 Proposal: B05- 000211 This document contains Motorola and Motorola confidential, proprietary, and trade secret information and may not W shared with any person or agency not directly associated with the City of Santa Ana without the express written consent of Motorola. Inc., or its designees.