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Updated:June 16, 2009
Cisco® Aironet® 1240G Series Access Points provide single-band 802.11g wireless connectivity for challenging RF environments such as factories, warehouses, and large retail establishments (Figure 1). Connectorized antennas, a rugged metal enclosure, and a broad operating temperature range offer extended range and coverage versatility. The Cisco Aironet 1240G Series provides local as well as inline power, including support for IEEE 802.3af Power over Ethernet (PoE).
Figure 1. Cisco Aironet 1240G Access Point
The Cisco Aironet 1240G Series is a component of the Cisco Unified Wireless Network, a comprehensive solution that delivers an integrated, end-to-end wired and wireless network. Using the radio and network management features of the Cisco Unified Wireless Network for simplified deployment, the Cisco Aironet 1240G Series extends the security, scalability, reliability, ease of deployment, and manageability available in wired networks to the wireless LAN (WLAN).
The Cisco Aironet 1240G Series is available in two versions: unified or autonomous. Unified access points operate with the Lightweight Access Point Protocol (LWAPP) and work in conjunction with Cisco wireless LAN controllers and the Cisco Wireless Control System (WCS). When configured with LWAPP, the Cisco Aironet 1240G Series can automatically detect the best-available Cisco wireless LAN controller and download appropriate policies and configuration information with no manual intervention. Autonomous access points are based on Cisco IOS
® Software and can optionally operate with the CiscoWorks Wireless LAN Solution Engine (WLSE). Autonomous access points, along with the CiscoWorks WLSE, deliver a core set of features and can be field-upgraded to take full advantage of the benefits of the Cisco Unified Wireless Network as requirements evolve.
Designed for rugged environments and installations that require antenna versatility, the Cisco Aironet 1240G Series features antenna connectors for extended range or coverage versatility and more flexible installation options. Manufacturing applications, for example, can place WLANs in hazardous locations and remotely place antennas in those locations while securing the Cisco Aironet 1240G Series Access Points.
The metal housing and industrial-grade components of the Cisco Aironet 1240G Series provide the ruggedness and extended operating temperature range required in factories, warehouses, "big box" retail environments, and similar facilities. High transmit power, receive sensitivity, and delay spread for 2.4-GHz radios provide the long range and large coverage area consistent with these applications. Access points can be placed above ceilings or suspended ceilings, allowing antennas to be discreetly placed below drop ceilings. The UL 2043 rating of the Cisco Aironet 1240G Series allows for placement of the access points above ceilings in plenum areas regulated by municipal fire codes. Public access applications such as large hotel buildings can also present a challenging RF environment; the antenna versatility of the Cisco Aironet 1240G Series, together with industry-leading range and coverage, provides reliable performance for the most demanding environments.
Features and Benefits
Table 1 lists the features and benefits of Cisco Aironet 1240G Series Access Points.
Table 1. Features and Benefits of Cisco Aironet 1240G Series Access Points
The access points provide 54 Mbps of capacity and compatibility with older 802.11b clients.
Dual RP-TNC antenna connectors for 2.4-GHz radios
Antenna connectors support a variety of Cisco 2.4-GHz antennas, providing range and coverage versatility.
Metal case and rugged features support deployment in factories, warehouses, the outdoors (NEMA enclosure required), and other industrial environments.
UL 2043 plenum rating and extended operating temperature
The access points support installation in environmental airspaces such as areas above suspended ceilings.
Multipurpose and lockable mounting bracket
The access points provide greater flexibility in installation options for site surveys, as well as theft deterrence.
Support for both local and inline power, including IEEE 802.1af PoE
• Power can be supplied using the Ethernet cable, eliminating the need for costly electrical power line runs to remotely installed access points.
• The access points can be powered by IEEE 802.3af PoE, Cisco Inline Power switches, single-port power injectors, or local power.
Hardware-assisted AES encryption
The access points provide high security without performance degradation.
Table 2 lists the product specifications for Cisco Aironet 1240G Series Access Points.
Table 2. Product Specifications for Cisco Aironet 1240G Series Access Points
• Regulatory domains: (x = regulatory domain)
• A = FCC
• E = ETSI
• P = Japan2
• Customers are responsible for verifying approval for use in their individual countries. To verify approval and to identify the regulatory domain that corresponds to a particular country, please visit:
• Not all regulatory domains have been approved. As they are approved, the part numbers will be available on the Global Price List.
• 2.412 to 2.472 GHz; 13 channels Orthogonal Frequency Division Multiplexing (OFDM)
• 2.412 to 2.484 GHz; 14 channels CCK
802.11b/g: 3 channels
Receive sensitivity (typical)
• 1 Mbps: -96 dBm
• 2 Mbps: -93 dBm
• 5.5 Mbps: -91 dBm
• 6 Mbps: -91 dBm
• 9 Mbps: -85 dBm
• 11 Mbps: -88 dBm
• 12 Mbps: -83 dBm
• 18 Mbps: -81 dBm
• 24 Mbps: -78 dBm
• 36 Mbps: -74 dBm
• 48 Mbps: -73 dBm
• 54 Mbps: -73 dBm
Available transmit power settings
(Maximum power setting varies by channel and according to individual country regulations.)
• 20 dBm (100 mW)
• 17 dBm (50 mW)
• 14 dBm (25 mW)
• 11 dBm (12 mW)
• 8 dBm (6 mW)
• 5 dBm (3 mW)
• 2 dBm (2 mW)
• 17 dBm (50 mW)
• 14 dBm (25 mW)
• 11 dBm (12 mW)
• 8 dBm (6 mW)
• 5 dBm (3 mW)
• 2 dBm (2 mW)
• -1 dBm (1 mW)
Indoor (distance across open office environment):
• 105 ft (32m) at 54 Mbps
• 180 ft (55m) at 48 Mbps
• 260 ft (79m) at 36 Mbps
• 285 ft (87m) at 24 Mbps
• 330 ft (100m) at 18 Mbps
• 355 ft (108m) at 12 Mbps
• 365 ft (111m) at 11 Mbps
• 380 ft (116m) at 9 Mbps
• 410 ft (125m) at 6 Mbps
• 425 ft (130m) at 5.5 Mbps
• 445 ft (136m) at 2 Mbps
• 460 ft (140m) at 1 Mbps
• 120 ft (37m) at 54 Mbps
• 350 ft (107m) at 48 Mbps
• 550 ft (168m) at 36 Mbps
• 650 ft (198m) at 24 Mbps
• 750 ft (229m) at 18 Mbps
• 800 ft (244m) at 12 Mbps
• 820 ft (250m) at 11 Mbps
• 875 ft (267m) at 9 Mbps
• 900 ft (274m) at 6 Mbps
• 910 ft (277m) at 5.5 Mbps
• 940 ft (287m) at 2 Mbps
• 950 ft (290m) at 1 Mbps
Measured with 2.2-dBi dipole antenna for 2.4 GHz
• UL 60950-1
• CAN/CSA-C22.2 No. 60950-1
• UL 2043
• IEC 60950-1
• EN 60950-1
• NIST FIPS 140-2 level 2 validation
• FCC Part 15.247
• RSS-210 (Canada)
• EN 300.328 (Europe)
• ARIB-STD 33 (Japan)
• ARIB-STD 66 (Japan)
• AS/NZS 4268.2003 (Australia and New Zealand)
• EMI and susceptibility (Class B)
• FCC Part 15.107 and 15.109
• ICES-003 (Canada)
• VCCI (Japan)
• EN 301.489-1 and -17 (Europe)
• EN 60601-1-2 EMC requirements for the Medical Directive 93/42/EEC
• 802.11i, WPA2, WPA
• AES, TKIP
• IEEE 802.11g and IEEE 802.11a
• FCC Bulletin OET-65C
• 2.4 GHz
• Dual RP-TNC connectors
• Status LED indicates operating state, association status, error or warning condition, boot sequence, and maintenance status.
• Ethernet LED indicates status of activity over the Ethernet.
• Radio LED indicates status of activity over the radio.
Dimensions (H x W x D)
1.1 x 6.6 x 8.5 in. (2.79 x 16.76 x 21.59 cm)
2.0 lb (0.9 kg)
• Nonoperating (storage) temperature: -40 to 185°F (-40 to 85°C)
• Operating temperature: -4 to 131°F (-20 to 55°C)
• Operating humidity: 10 to 90 percent (noncondensing)
• 32 MB RAM
• 16 MB flash memory
Input power requirements
• 100 to 240 VAC; 50 to 60 Hz (power supply)
• 36 to 57 VDC (device)
• Local power
• 802.3 AF switches
• Cisco higher-power switches capable of supporting 13W or greater
• Cisco Aironet power injectors (PWRINJ3 and PWRINJ-FIB)
• Third-party PoE devices (must meet input power and power draw requirements)
• 12.95W maximum
Note: 12.95W is the maximum power required at the powered device. If the access point is being used in a PoE configuration, the power drawn from the power sourcing equipment will be higher by some amount dependent on the length of the interconnecting cable. This additional power can be as high as 2.45W, bringing the total system power draw (access point and cabling) to 15.4W.
Table 3 lists the system requirements for Cisco Aironet 1240G Series Access Points.
Table 3. System Requirements for Cisco Aironet 1240G Series Access Points
Using the Web browser management GUI requires a computer running Internet Explorer Version 6.0 or later, or Netscape Navigator Version 7.0 or later.
Power sourcing equipment is compliant with Cisco Inline Power or IEEE 802.3af, and provides at least 12.94W at 48 VDC.
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