Appendix A

Specifications

General Characteristics

Type Wireless Ethernet Client
Compatibility

IEEE 802.11b (High Rate)
Wi-Fi
IEEE 802.3 10/100MBps

Media Access Protocol

CSMA/CA with ACK & RTS/CTS
(Carrier Sense Multiple Access / Collision Avoidance with Acknowledgment)

Data Rates

High Rate: 11Mbps (CCK)
Medium Rate: 5.5Mbps (CCK)
Standard Rate: 2Mbps (DQPSK)
Low Rate: 1Mbps (DBSK)

Network Operating System

Microsoft Windows Networking
Novell Client 3.x, 4.x

Host Operating System Windows 98SE, ME, 2000, XP
LEDs

Power, Eth, Transmission




Radio Characteristics

Frequency Band 2.4 GHz ISM Band (2.4 - 2.4835 GHz)
Number of Selectable Channels (Overlapping)
North America (FCC) 11
Europe (ETSI) 13
France (FR) 4
Japan (JP) 14
Singapore (iDA) 13
Other Countries FCC 11, ETSI 13
Modulation Techniques

DSSS (Direct Sequence Spread Spectrum):

  • CCK (Complimentary Code Keying), for High and Medium Transmit Rates
  • DQPSK (Differential Quadrature Phase Shift Keying) for Standard Transmit Rate
  • DBPSK (Differential Binary Phase Shift Keying) for Low Transmit Rate
Security 64-bit & 128-bit WEP encryption
Spreading Sequence 11 chip Barker Sequence
Frame Error Rate Better than 8%
Output Power 100mW
Regulations
Europe ETSI 300-328, CE Marked
USA FCC 47 CFR Part 15C, Section 15.247 - FCC Certification- ID: PWG DOLPHIN
Canada RSS 139
Japan MPT Radio Regulations
Singapore iDA approved




Power Characteristics

Power Consumption 350 mA at 12V DC
Power Supply +12 V DC from external Power Adapter( 100 V ~ 264 V / 50 ~60 Hz AC IN 12V DC OUT )




Physical Characteristics

  airBridge airBridge Outdoor airBridge TOTAL
Dimensions (mm)
Width x Depth x Height
120 x 130 x 42 130 x 130 x 35 180 x 180 x 60
Weight (gm) 200 550 950
Operating Temperature (°c) 0 ~ +50 -40 ~ +65 -40 ~ +65
Storage Temperature (°c) -25 ~ +50 -40 ~ +65 -40 ~ +65
Humidity Operating: 0 to 70% (non-condensing)
Storage: 10 to 90% (non-condensation)
Operating: 0 to 70% (non-condensing)
Storage: 10 to 90% (non-condensation)
Operating: 0 to 70% (non-condensing)
Storage: 10 to 90% (non-condensation)




Supported Frequency sub-bands (in MHz)

Channel number
FCC countries
ETS countries
France
Japan
Singapore
1
2412
2412
Not Allocated
2412
2412
2
2417
2417
Not Allocated
2417
2417
3
2422
2422
Not Allocated
2422
2422
4
2427
2427
Not Allocated
2427
2427
5
2432
2432
Not Allocated
2432
2432
6
2437
2437
Not Allocated
2437
2437
7
2442
2442
Not Allocated
2442
2442
8
2447
2447
Not Allocated
2447
2447
9
2452
2452
Not Allocated
2452
2452
10
2457
2457
2457
2457
2457
11
2462
2462
2462
2462
2462
12
Not Allocated
2467
2467
2467
2467
13
Not Allocated
2472
2472
2472
2472
14
Not Allocated
Not Allocated
Not Allocated
2484
Not Allocated

NOTE:
FCC countries adhere to the regulations as defined by the U.S. Federal Communications Commission (FCC).
ETS countries adhere to the regulations as defined by the European Telecommunications Standards Institute (ETSI).




Range

Distance in meters 11Mbps 5Mbps 2Mbps 1Mbps
Outdoor Open Space 800 1000 1300 1600
Semi-Open Office 70 80 100 120
Closed Office 40 50 70 80

NOTE:
The range of values listed in the table above are typical distances measured at smartBridges’ premises. These represent indicative values and may vary according to actual radio conditions at the location where the airBridge will be used.

The range of your wireless devices can be affected when they are placed near metal surfaces and solid high-density materials like concrete walls, wood constructions, steel structures etc.

Range is also affected by “obstacles” in the signal path of radio. These obstacles may either absorb or reflect the radio signal.

Environments can be described as follows:

  • Outdoor Open Space environment: Devices are in Radio Line of Sight (RLOS) and there is no physical obstruction between them.
  • Semi-Open Office environment: Workspace is divided by shoulder-height, hollow (glass, plastic) wall elements; airBridge is placed at desktop level.
  • Closed Office environment: Workspace is divided by high-density solid wall structures.