ARLAN is a family of both proprietary non-

802.11 IEEE 802.11 is part of the IEEE 802 set of local area network (LAN) technical standards, and specifies the set of media access control (MAC) and physical layer (PHY) protocols for implementing wireless local area network (WLAN) computer com ...

and 802.11-compliant wireless networking technologies developed and marketed by

Aironet Wireless Communications Cisco Aironet is a maker of wireless networking equipment currently operated as a division of Cisco Systems. It was started by ex- Marconi Wireless employees in 1986 as Telesystems SLW in Canada, right after the United States Federal Communicatio ...

in the 1990s prior to Aironet's acquisition by

Cisco Systems Cisco Systems, Inc., commonly known as Cisco, is an American-based multinational corporation, multinational digital communications technology conglomerate (company), conglomerate corporation headquartered in San Jose, California. Cisco develo ...

. Operating in the 900 MHz and 2.4 GHz

ISM band The ISM radio bands are portions of the radio spectrum reserved internationally for industrial, scientific and medical (ISM) purposes, excluding applications in telecommunications. Examples of applications for the use of radio frequency (RF) ener ...

s and offering a nominal 2.0 Mbit/s throughput, the non-802.11

DSSS In telecommunications, direct-sequence spread spectrum (DSSS) is a spread-spectrum modulation technique primarily used to reduce overall signal interference. The direct-sequence modulation makes the transmitted signal wider in bandwidth than t ...

products competed directly with NCR's

WaveLAN WaveLAN was a brand name for a family of wireless networking technology sold by NCR, AT&T, Lucent Technologies, and Agere Systems as well as being sold by other companies under OEM agreements. The WaveLAN name debuted on the market in 1990 and was ...

technology. After acquisition, the ARLAN lineup was renamed to Cisco Aironet; the non-802.11 products were supported briefly then discontinued.

Hardware

The ARLAN lineup consisted of several offerings:

900 MHz DSSS non-802.11

*Half-length ISA card, part number 655-900, RP-TNC connector. Cisco part number 200-001292. * MCA card, part number 670-900, RP-TNC connector *

PC card In computing, PC Card is a configuration for computer parallel communication peripheral interface, designed for laptop computers. Originally introduced as PCMCIA, the PC Card standard as well as its successors like CardBus were defined and devel ...

, part number 690-900, large external antenna dongle *900 MHz access point, part number 630-900 *900 MHz

bridge A bridge is a structure built to span a physical obstacle (such as a body of water, valley, road, or rail) without blocking the way underneath. It is constructed for the purpose of providing passage over the obstacle, which is usually somethi ...

, part number 640-900

2.4 GHz DSSS non-802.11

*Half-length ISA card, part number 655-2400 (later renamed to IC 2200), RP-TNC connector *MCA card, part number 670-2400, RP-TNC connector *PC card, part number 690-2400 (later renamed to PC 2200), large external antenna dongle *2.4 GHz access point, part number 630-2400 *2.4 GHz bridge, part number 640-2400 *2.4 GHz high-speed bridge, part number BR2040-EE

2.4 GHz FHSS early
802.11 IEEE 802.11 is part of the IEEE 802 set of local area network (LAN) technical standards, and specifies the set of media access control (MAC) and physical layer (PHY) protocols for implementing wireless local area network (WLAN) computer com ...
draft D5 compliant

*2.4 GHz PC card, part number PC3000 *2.4 GHz PC card, part number LM3000 *2.4 GHz access point, part number AP3000

Official specifications

{, class="wikitable" , - ! Realm ! Type ! Frequency ! Channels !

Modulation In electronics and telecommunications, modulation is the process of varying one or more properties of a periodic waveform, called the ''carrier signal'', with a separate signal called the ''modulation signal'' that typically contains informatio ...

technique ! Output power !

Media Access Control In IEEE 802 LAN/MAN standards, the medium access control (MAC, also called media access control) sublayer is the layer that controls the hardware responsible for interaction with the wired, optical or wireless transmission medium. The MAC sublay ...

! Security ! Max data rate ! Fallback rate , - , US and Canada , 900 MHz , 902-928 MHz , 12 ,

DQPSK Phase-shift keying (PSK) is a digital modulation process which conveys data by changing (modulating) the phase of a constant frequency reference signal (the carrier wave). The modulation is accomplished by varying the sine and cosine inputs at ...

, 450 mW , Modified

CSMA/CA Carrier-sense multiple access with collision avoidance (CSMA/CA) in computer networking, is a network multiple access method in which carrier sensing is used, but nodes attempt to avoid collisions by beginning transmission only after the channel ...

, 24-bit network ID , 860 kbit/s , 215 kbit/s , - , Australia , 900 MHz , 915-928 MHz , 5 , DSSS/DQPSK , 450 mW , Modified CSMA/CA , 24-bit network ID , 215 kbit/s , 172 kbit/s , - , US, Canada, Europe , 2.4 GHz , 2.400-2.4835 GHz , 5 , DSSS/DQPSK , 50 or 100 mW , Modified CSMA/CA , 24-bit network ID , 2 Mbit/s , 1 Mbit/s , - , Japan , 2.4 GHz , 2.471-2.497 GHz , 1 , DSSS/DQPSK , 50 or 100 mW , Modified CSMA/CA , 24-bit network ID , 2 Mbit/s , 1 Mbit/s , - , US - BR2040-EE only , 2.4 GHz , 2.400-2.4835 GHz , 5 , DSSS/DQPSK , 100 mW (4 W

EIRP Effective radiated power (ERP), synonymous with equivalent radiated power, is an IEEE standardized definition of directional radio frequency (RF) power, such as that emitted by a radio transmitter. It is the total power in watts that would hav ...

max) , Modified CSMA/CA , 24-bit network ID , 8 Mbit/s (2 pairs of non-interfering bridge frequency pairs) , 1 Mbit/s

External links