1. © Copyright 1998 P-Com, Inc PTM-0018 THE BROADBAND RADIO ACCESS NETWORK

2.  Sectorized Base Station.  Transmission of ATM cells ‘over the air’.  Broadband: 200Mb/s per Sector  Supports both FDMA and TDMA operation with dynamic bandwidth assignment.  Modulation configurable QPSK, 16QAM, 64QAM.  Operation in bands 10-42GHz. Point to Multipoint Radio Features

3. EXPANSION IDU BASIC IDU SECTOR ODU SECTOR ODU EXPANSION IDU BASIC IDU SECTOR ODU SECTOR ODU EXPANSION IDU BASIC IDU SECTOR ODU SECTOR ODU EXPANSION IDU BASIC IDU SECTOR ODU SECTOR ODU ATM CONC. OC3c ATM NETWORK DS-3 OC-3c OC-12c Sector 1 Sector 2 Sector 4 Sector 3 Base Station Configuration

4. Base Station to Remote Carriers Single Carrier QPSK16QAM64QAM 7 MHz9 Mbps19 Mbps28 Mbps 10 MHz13 Mbps27 Mbps40 Mbps FDM Carrier Downlink Transmission

5.  Simultaneous TDMA and FDMA supported by Base Station  Configurable by plug-in modules/cards Uplink Transmission TDMA Carriers FDMA Carriers

6.  31 cm (7U) High  19” Rack-mount  Power:  90-260 VAC or -48 VDC  200 Mbps  2 x OC-3/Controller (1+1)  6 x Modulator (5+1)  11 x Demodulators (N+1)  2 x ODU Mux (1+1)  Hot plug-in Chassis Features Sector Indoor Unit

7.  Pole mounted assembly  Redundant configuration shown for a Sector  Mounts 2 RF ODU’s  Mounts Sector Horn Antennas  A single coaxial cable per ODU Sector Outdoor Equipment

8. Available Now Band Low (MHz)High (MHz) T/R Channel Plan 10 GHz 10,150 - 10,30010,500 - 10,650 350 ERC 12-05 24 GHz 24,250 - 24,45025,050 - 25,250 800 FCC 26 GHz 24,500 - 25,00025,500 - 26,000 1,008 CEPT T/R 13-02 28 GHz 27,500 - 27,71227,925 - 28,137 425 LMDS A 38 GHz 38,600 - 38,97539,300 - 39,675 700 FCC 38 GHz 38,060 – 38,48039,060 - 39,480 1,000 Japan New: 28 GHz 28,052 - 28,44529,060 - 29,453 1,008 ERC 13-02 26 GHz China Frequency Plans

9.  Parabolic Antenna (30cm or 60cm)  RF Outdoor Unit  Radio Modem Indoor Unit  4 User Interfaces DSLAM IFL SLIM-LINE IDU (1U) SERVICE MODULES T1/E1 PABX FR/T1/E1 ROUTER 10BT LAN ATM DEMOD FDMA/ TDMA MOD CNTRL Antenna 30 cm Parabolic ODU Remote Configuration Other

10.  1U high 19 inch rack mounted shelf  40 Mbps ATM capacity  ABM to provide DS3 traffic capacity  FDMA or TDMA operation  4 User Ports configured with:  ATM-155, ATM-25 and OC-3 MMF options Remote Modem Indoor Unit

11.  1U high 19inch rack shelf  T1/E1 Circuit Emulation (8 ports)  T1/E1 Frame Relay (6 ports)  10BaseT (4 ports)  ATM interfaces non-proprietary allowing:  Third Party ATM Equipment  DSLAM’s Service Modules

12.  SNMP protocols to all radio elements.  NMS messages carried as ATM cells in the transmission backhaul to the NMC.  Management Software uses HP OpenView on UNIX workstation. SNMP P-COM NMS RRR BASE STATION RRR MUX BASE STATION MUX SWITCH SERVICE NODE Network Management