Table Of Contents

Technical Specifications

Technical Specifications

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This appendix provides technical specifications for the Cisco Aironet CB21AG and PI21AG Wireless LAN Client Adapters.

The following topics are covered in this appendix:

•Physical Specifications, page 2

•Radio Specifications, page 2

•Power Specifications, page 6

•Safety and Regulatory Compliance Specifications, page 6

Table A-1 lists the technical specifications for the Cisco Aironet CB21AG and PI21AG Wireless LAN Client Adapters.

Table A-1 Technical Specifications for CB21AG and PI21AG Client Adapters 

Physical Specifications
Size
PC-Cardbus card	4.5 in. L x 2.1 in. W x 0.2 in. H (11.3 cm L x 5.4 cm W x 0.5 cm H)
PCI card
Standard PCI card	4.7 in. L x 0.7 in. W x 4.8 in. H (12 cm L x 1.8 cm W x 12.1 cm H)
Low-profile PCI card	4.7 in. L x 0.7 in. W x 3.1 in. H (12 cm L x 1.8 cm W x 7.9 cm H)
Weight
PC-Cardbus card	1.55 oz (44 g)
PCI card
Standard PCI card with antenna	3.6 oz (103 g)
Standard PCI card without antenna	1.9 oz (55 g)
Low-profile PCI card with antenna	3.5 oz (98 g)
Low-profile PCI card without antenna	1.7 oz (49 g)
Enclosure
PC-Cardbus card	Type II Cardbus
PCI card	Standard or low-profile Type II PCI
Connector
PC-Cardbus card	68-pin Cardbus
PCI card	62-pin PCI
Status indicators	Green and amber LEDs; see Chapter 10,
Operating temperature	32oF to 158oF (0oC to 70oC)
Storage temperature	32oF to 185oF (0oC to 85oC)
Humidity (non-operational)	90% relative humidity
ESD	15 kV (human body model)
Radio Specifications
Type
802.11a	Orthogonal frequency division multiplexing (OFDM)
802.11b/g	Direct-sequence spread spectrum (DSSS) and orthogonal frequency division multiplexing (OFDM)
Power output Note Refer to Appendix D, for limitations on radiated power (EIRP) levels in the European community and other countries.
802.11a	40 mW (16 dBm) @ 6, 9, 12, 18, 24 Mbps 25 mW (14 dBm) @ 6, 9, 12, 18, 24, 36 Mbps 20 mW (13 dBm) @ 6, 9, 12, 18, 24, 36, 48, 54 Mbps 13 mW (11 dBm) @ 6, 9, 12, 18, 24, 36, 48, 54 Mbps 10 mW (10 dBm) @ 6, 9, 12, 18, 24, 36, 48, 54 Mbps Note The maximum power setting varies according to individual country regulations.
802.11b/g	100 mW (20 dBm) @ 1, 2, 5.5, 11 Mbps 63 mW (18 dBm) @ 1, 2, 5.5, 6, 9, 11, 12, 18, 24 Mbps 50 mW (17 dBm) @ 1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36 Mbps 30 mW (15 dBm) @ 1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36, 48 Mbps 20 mW (13 dBm) @ 1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36, 48, 54 Mbps 10 mW (10 dBm) @ 1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36, 48, 54 Mbps Note The maximum power setting varies according to individual country regulations.
Operating frequency
802.11a	5.15 to 5.25 GHz in the UNII 1 band* 5.25 to 5.35 GHz in the UNII 2 band* 5.470 to 5.725 GHz in the European band 5.725 to 5.825 GHz in the UNII 3 band* *Depending on the regulatory domain in which the client adapter is used
802.11b/g	2.400 to 2.497 GHz (depending on the regulatory domain in which the client adapter is used)
Usable channels
802.11a	5150 to 5350 MHz and 5725 to 5825 MHz
802.11b/g	2412 to 2484 MHz in 5-MHz increments
Data rates	1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36, 48, and 54 Mbps
Modulation	Differential binary phase shift keying (DBPSK) - 1 Mbps Differential quaternary phase shift keying (DQPSK) - 2 Mbps Complementary code keying (CCK) - 5.5 and 11 Mbps Binary phase shift keying (BPSK) - 6 and 9 Mbps Quaternary phase shift keying (QPSK) - 12 and 18 Mbps 16-quadrate amplitude modulation (16-QAM) - 24 and 36 Mbps 64-quadrate amplitude modulation (64-QAM) - 48 and 54 Mbps
Receiver sensitivity
802.11a	5150 to 5250 MHz -87 dBm @ 6, 9, 12, and 18 Mbps -82 dBm @ 24 Mbps -79 dBm @ 36 Mbps -74 dBm @ 48 Mbps -72 dBm @ 54 Mbps 5250 to 5350 MHz -89 dBm @ 6, 9, and 12 Mbps -85 dBm @ 18 Mbps -82 dBm @ 24 Mbps -79 dBm @ 36 Mbps -74 dBm @ 48 Mbps -72 dBm @ 54 Mbps 5470 to 5725 MHz -87 dBm @ 6, 9, 12, and 18 Mbps -82 dBm @ 24 Mbps -79 dBm @ 36 Mbps -74 dBm @ 48 Mbps -72 dBm @ 54 Mbps 5725 to 5805 MHz -84 dBm @ 6, 9, and 12 Mbps -83 dBm @ 18 Mbps -82 dBm @ 24 Mbps -79 dBm @ 36 Mbps -72 dBm @ 48 Mbps -65 dBm @ 54 Mbps
802.11b/g	-94 dBm @ 1 Mbps -93 dBm @ 2 Mbps -92 dBm @ 5.5 Mbps -90 dBm @ 11 Mbps -86 dBm @ 6, 9, 12, and 18 Mbps -84 dBm @ 24 Mbps -80 dBm @ 36 Mbps -75 dBm @ 48 Mbps -71 dBm @ 54 Mbps
Receiver delay spread (multipath)
802.11a/g	400 ns @ 6 Mbps 250 ns @ 9 and 12 Mbps 220 ns @ 18 Mbps 160 ns @ 24 Mbps 100 ns @ 36 Mbps 90 ns @ 48 Mbps 70 ns @ 54 Mbps
802.11b	350 ns @ 1 Mbps 300 ns @ 2 Mbps 200 ns @ 5.5 Mbps 130 ns @ 11 Mbps
Range
802.11a	Indoor (typical) Outdoor (typical) 165 ft (50 m) @ 6 Mbps 1000 ft (304 m) @ 6 Mbps 110 ft (33 m) @ 18 Mbps 600 ft (183 m) @ 18 Mbps 45 ft (13 m) @ 54 Mbps 100 ft (30 m) @ 54 Mbps Note The above range numbers assume that the client adapter is being used at maximum transmit power with a Cisco Aironet 1200 Series Access Point with a 6-dBi patch antenna. Different range characteristics are likely when using the client adapter with a different access point or a Cisco Aironet 1200 Series Access Point with a different antenna.
802.11b/g	Indoor (typical) Outdoor (typical) 410 ft (124 m) @ 1 Mbps 2000 ft (610 m) @ 1 Mbps 300 ft (91 m) @ 6 Mbps 1300 ft (396 m) @ 6 Mbps 160 ft (48 m) @ 11 Mbps 1000 ft (304 m) @ 11 Mbps 180 ft (54 m) @ 18 Mbps 600 ft (183 m) @ 18 Mbps 90 ft (27 m) @ 54 Mbps 250 ft (76 m) @ 54 Mbps Note The above range numbers assume that the client adapter is being used at maximum transmit power with a Cisco Aironet 1200 Series Access Point with a 2.2-dBi dipole antenna. Different range characteristics are likely when using the client adapter with a different access point or a Cisco Aironet 1200 Series Access Point with a different antenna.
Antennas
PC-Cardbus card	Integrated 0-dBi dual-band 2.4/5-GHz diversity antenna
PCI card	1-dBi dual-band 2.4/5-GHz antenna, permanently attached by 6.6-ft (2-m) cable
Power Specifications
Operational voltage	3.3 V (± 0.3 V)
Receive current steady state
802.11a	318 mA maximum
802.11b	327 mA maximum
802.11g	282 mA maximum
Transmit current steady state
802.11a	554 mA maximum
802.11b	539 mA maximum
802.11g	530 mA maximum
Sleep mode steady state	203 mA average
Safety and Regulatory Compliance Specifications
Safety	Designed to meet: •UL 60950 •CSA 22.2 No. 60950 •IEC 60950 Second Ed., including Amendments 1-4 with all national deviations •EN 60950 Second Ed., including Amendments 1-4
EMI and susceptibility	FCC Part 15.107 & 15.109 Class B ICES-003 Class B (Canada) VCCI (Japan) EN 301.489-1 and EN-301.489-17 (Europe)
Radio approvals	FCC Part 15.247 FCC Part 15.401-15.407 Canada RSS-210 Europe EN-300.328, EN-301.893 ARIB STD-33, ARIB STD-66, ARIB STD-T71 (Japan) AS 4268.2 (Australia) AS/NZS 3548 (Australia and New Zealand)
RF exposure	FCC Bulletin OET-65C Industry Canada RSS-102