ARLAN is a family of both proprietary non- 802.11 and 802.11-compliant wireless networking technologies developed and marketed by Aironet Wireless Communications in the 1990s prior to Aironet's acquisition by

Cisco Systems Cisco Systems, Inc. (using the trademark Cisco) is an American multinational corporation, multinational digital communications technology conglomerate (company), conglomerate corporation headquartered in San Jose, California. Cisco develops, m ...

. 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 ...

s and offering a nominal 2.0 Mbit/s throughput, the non-802.11 DSSS products competed directly with NCR's WaveLAN 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 PC Card is a technical standard specifying an expansion card interface for laptops and personal digital assistants, PDAs. The PCMCIA originally introduced the 16-bit Industry Standard Architecture, ISA-based PCMCIA Card in 1990, but renamed it to ...

, 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 (engineering), span a physical obstacle (such as a body of water, valley, road, or railway) without blocking the path underneath. It is constructed for the purpose of providing passage over the obstacle, whi ...

, 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 Frequency-hopping spread spectrum (FHSS) is a method of transmitting radio signals by rapidly changing the carrier frequency among many frequencies occupying a large spectral band. The changes are controlled by a code known to both transmitter ...
early 802.11 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 Signal modulation is the process of varying one or more properties of a periodic waveform in electronics and telecommunication for the purpose of transmitting information. The process encodes information in form of the modulation or message ...

technique ! Output power !

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

! Security ! Max data rate ! Fallback rate , - , US and Canada , 900 MHz , 902-928 MHz , 12 , DSSS/ DQPSK , 450 mW , Modified

CSMA/CA Carrier-sense multiple access with collision avoidance (CSMA/CA) in computer networking, is a link layer multiple access method in which carrier sensing is used. Under CSMA/CA, nodes attempt to avoid collisions by beginning transmission only af ...

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

External links