Exhibit

3444-EX-ST-1998 Text Documents

NETRO CORPORATION

2001-04-05ELS_45487

THE WIRELESS ATM COMPANY AirStar®" System Specifications 26 GHz (ITU Version) Base Radio Unit l ( Subscriber Radio Unit ' $ AirView"" s ‘ 4 Network Base Modem Unit Management System ~C Base Station Subscriber Shelf Access System Range and Availability (typ) Channel Bandwidth * 5 kilometer radius * 7 MHz * 99.995% availability (CCIR climatic Zone E, Northern Europe) minimum antenna gains m& Modulation Format E Radio Unit and Antennas * Base Station to Subscriber Terminal: 4 QAM or 16 QAM, TDM Base Station: The Base Station Radio comprises a number of * Subscriber Terminal to Base Station: 4 QAM or 16 QAM, sectorized radio unit arrays. Each sector has one or more Base TDMA Radio Units, allowing modular capacity build—up and redun— * FDM of multiple 7 MHz carriers and T‘x to RX separation dant configuration o?both radio and antenna. i j § Transmit Power (typ) Azimut Elevation Nominal _# of Sectors Beamwidth Beamwidth Gain Per Cell i QAM 16 OAM 30e 70 20 dBi I to 17 * Base Station _ +20 dBm +18 dBm 450 7o 18 dBi 1 to 8 * Subscriber Terminal +20 dBm +18 dBm 90e 70 15 dBi I to 4 * ATPC (Automatic Transmit Power Control range): 50 dB Subscriber Terminal: The Subscriber Radio Unit consists of a 125 mm integral antenna. Optional standard parabolic Receiver antennas may be used to increase system range. Receive sensitivity: (BER=1x10°) 4 QAM 16 QAM — Integral: High performance horn antenna, 28 dB * Base Station: —85 dBm at 8 Mb/s —78 dBm at 16 Mb/s nominal gain * SubscriberTerminal: —85 dBm at 8 Mb/s —78 dBm at 16 Mb/s — Non—integral: 0.3 m at 35 dBi or 0.6 m at 41dBi Air Interface wenrcy fRange * Netro‘s CellMAC"" protocol for wireless ATM, with centralized * Digitally synthesized, software controlled traffic scheduling based on Netro‘s virtual framer for ATM — 24.5 to 26.5 GHz CBR traffic and virtual shaper for ATM VBR traffic. — T/R Spacing = 1008 MHz All specifications subject to change without notice. This document contains confidential and proprietary information of Netro Corporation. Some regulatory approvals pending. _© 1997 Netro Corporation. February, 1998

System Capacity Power * Capacity per subscriber (7 MHz, full duplex, channel): * Input voltage — 4 QAM : 64 Kbi/s to 8 Mbi/s — Subscriber Terminal: —48 VDC or 220 VAC, 50 Hz — 16 QAM: 64 Kbi/s to 16 Mb/s — Base station: —48 VDC * Power consumption (typ): — Base station: 400 W Networking Specifications & Protocols — Subscriber Terminal:; 35 W * Protocol: — Q.931 Redundancy — V5.1, V5.2 — Frame Relay/ATM FRES5 * N — RFC 1483 (Multi— protocol encapsulation over ATM) Mechanical Interface Specifications Dimensions: HxWxD Subscriber Terminals: Base Stations: Subscriber Units: E1 and Fractional El E3 ATM UNI — Indoor unit (SAS) 4 cm x 21.5 cm x 28 cm ISDN BRI, PRI STM—1 ATM UNI — Outdoor unit (SRU) 30 cm x 16 cm x 20 cm Frame Relay Base Station Unit: 10BaseT — Indoor unit 44.4 cm x 48.3 cm x 50.8 cm (BSS, incl. cooling) — Outdoor unit (BRU) 41 cm x 11 cm x 17 cm Network Management SAS to SRU connection: — LMR240, 0 — 100 m; LMR400, 0 — 300 m * SNMP based * Downloadable software, local and remote * Performance measurement: per G.821, G.826, and Miscellaneous ITU—R Rec 697—1 * Windows® NT GUI * Encryption: DES, 40 bit. 56 bit, with export license Standards and Regulatory Compliance * System: ETSE prEITS 300 431. BADPT 211 ZV, MPT 1420, prETS TM4. ITU—R, RecE749, x.731 * EMC: CE Mark, CISPR 22, ENS55022, ENS0082—1 and 2, ETS 300 339 and 385 * ‘Traffic interface: ITU—T G.703, G.704, G.775, G.823, 1.431, CTR 12, TBR 12, IEEE 802.3 * Mechanical and safety: ISO 9001, FQAA, CE Mark, EN 60950, EN 41003, IEC 950 * Environmental: ETS 300 019 Environmental * Operating temperature, Base Station — Indoor unit: 0° C to +40° C — Outdoor unit: —33° C to +55° C * Operating Temperature, Subscriber Terminal — Indoor unit: 0° C to +40° C — Outdoor unit: —33° C to +55° C * Relative humidity (indoor): 5—95%, non—condensing * Altitude (system): 0—4500 m * Wind loading: Operational: 145 km/hr Survival: 200 km/hr efro THE WIRELESS ATM COIPANV. Headquarters: German Office Netro Corporation Netro GmbH 3860 North First St. Koiner Str. 10 San Jose, CA 95134—1702 65760 Eschborn (408) 216—1500 Germany (408) 216—1555 fax +49—6196—400—977 http://www.netro—corp.com +49—6196—400—935 fax All enacifications subject to change without notice. This document contains confidential and proprietary information of Netro Corporation. Some regulatory approvals pending. Ca opy the ho ens o aek ks


Document Created: 2001-04-05 08:28:13
Document Modified: 2001-04-05 08:28:13
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