Zoom Telephonics WLANPCCRD11 Wireless LAN PCMCIA Card User Manual DIPOLE ANTENNA

Zoom Telephonics Inc Wireless LAN PCMCIA Card DIPOLE ANTENNA

INSTALLATION GUIDE

ANTENNA OPTIONS andINSTALLATION INSTRUCTIONSZoomAir Wireless Network Interface Cards are available with either an integrated antenna or anexternal antenna. The 11Mbps ZoomAir, supporting both PCMCIA and PCI formats, and shippingwith the ZoomAir Hardware Access Point, comes with an external dipole antenna, providing moreuniform coverage and up to 30% greater range in specific settings. Additional antenna models areavailable to meet specific wireless networking installation needs.MAXIMIZING RANGEThe built-in patch antenna on the PCMCIA and PCI Models has a horizontal pattern shaped like a cone. Whenusing two ZoomAir cards with the integrated patch antenna in an office environment where set-up is less than10 ft. apart, you can minimize packet errors by placing the units on different planes. Once the units are furtherthan 10 ft. apart, the antenna signals will reflect off walls, tables, and people, thus changing signalpolarization. Outdoor polarization has an even greater effect. If there are not any objects in the path of the tworadio cards, the two cards should be on different planes to achieve the best range and to minimize packeterrors.The external dipole antenna model has an omni pattern. It transmits and receives signals equally in alldirections. When using ZoomAir cards with external dipole antennas, it’s best to have them all oriented in thesame direction. If you have one card with a dipole antenna and another with an integrated antenna, werecommend that the dipole be at 90° to the integrated patch.With all cards, placement is very important. If one computer is under a desk, loss will occur. Glass and metalwill also cause degradation (e.g., inside a car). Weather conditions such as snow and rain water increasesignal attenuation. Essentially, different materials affect the propagation of radio waves: Some cause moreattenuation than others. See below for some common examples:• Wood Floors Low• Plaster Walls Low• Glass Windows Low• Water Damp Wood; Aquariums Medium• Bricks Inner and Outer Walls Medium• Marble Inner Walls Medium• Paper Paper Rolls High• Concrete Floors and Outer Walls High• Metal Desks; Partitions Very HighMaterials Examples AttenuationW I R E L E S S N E T W O R K I N G
ANTENNAS■ DIPOLE ANTENNAThe ZoomAir 2.2 dBi Dipole Antenna Model #98110-02 issupplied as standard equipment with the 11Mbps ZoomAir WirelessNetwork Interface Card and the ZoomAir Hardware Access Point. Itattaches directly to each device's built-in antenna jack. TheZoomAir Dipole Antenna's radiation pattern is omni-directional: Ittransmits and receives signals equally well in all directions. Whencompared with the 11 Mbps ZoomAir Model with the NIC'sintegrated antenna, the ZoomAir Dipole typically provides moreuniform coverage and up to 30% greater range.Model 98110-02 SpecificationsFrequency range 2.4-2.483 GHzGain1 2.2 dBiPolarization2LinearNominal impedance 50 ohmsConnector Reverse polaritySMA male (plug)Dimensions 3.25”(82mm) length; 9/32”(7mm) diameterWeight < 0.5 oz (<14gm)Omni-directional to 300 ft. (90m) in a typical partitioned office or 1,000 ft. (300m) with an unobstructed line of sight■ OMNI-DIRECTIONAL ANTENNAZoomAir 4.0 dBi Omni-Directional Antenna Model #98110-04 canbe mounted on a ceiling for use as an omni-directional antenna, ormounted on a wall to provide increased range in a single direction.The antenna attaches to the 11 Mbps ZoomAir Wireless NetworkInterface Card or a ZoomAir Hardware Access Point through a 1-meter or 3-meter low-loss coaxial cable (sold separately). Cablelength can be extended to a maximum recommended 6 meters byattaching additional cable segments using a supplied adapter. TheZoomAir Omni-Directional Antenna package includes mountinghardware.Model 98110-04 SpecificationsFrequency range 2.4-2.484 GHzGain14.0 dBic (circular)3 dB beamwidth (elevation) 220° (typical)Polarization3Right-hand circularNominal impedance 50 ohmsConnector Reverse polaritySMA female (jack)Dimensions 3”W (7.6cm) x 3”H (7.6cm) x 1.5” (3.8cm)Weight 3.0 oz (85 gr)Ceiling mounted for a radius coverage of 380ft.(115m) in a typical partitioned office or 1,500ft.(455m) in an unobstructedenvironment. Directional range to 450ft. (115m) in a partitioned office or 1275ft.(390m) in an unobstructed environment.Omni-directional to 300 ft.(90m) in a typical partitioned office or 1,000 ft.(300m) with an unobstructed line of sight
■ DIRECTIONAL ANTENNA A range of one mile can be achieved if a line-of-sight position isestablished using two ZoomAir 13.0 dBi Directional AntennasModel #98110-13. The unit is designed for both indoor and outdooruse. Connection is made through a 1-meter or 3-meter low-losscoaxial cable (sold separately). Cable length may be extended to amaximum recommended 6 meters by attaching additional cablesegments using a supplied adapter. Mounting/positioning hardwareis included.Model 98110-13 SpecificationsFrequency range 2.3-2.500 GHzGain113.0 dBiPolarization2LinearAzimuth and elevation beamwidth 35’Nominal impedance 50 ohmsLightning protection DC groundedConnector Reverse polarity SMA female (jack)Dimensions 8.7”W(22.1cm) x 7.9”H(20.1cm) x 1.4”D(3.6cm)Weight 0.77 lb (0.35 kg)Up to1 mile(1.6km) point-to-point unobstructed line of sight■ MINIATURE DIELECTRIC ANTENNAThe ZoomAir 2.15 dBi Miniature Dielectric Antenna Model #98110-21 issupplied to OEM’s for installation within their equipment. The antennaattaches to the ZoomAir 11Mbps Wireless Network Interface Card witha 6 inch supplied cable.Model 98110-21 SpecificationsFrequency range 2.4-2.5 GHzGain 2.15 dBiPolarization2VerticalNominal impedance 50 ohmsConnector Reverse polarity SMA male (plug)Dimensions 3”W(76mm) 2”H(50mm) wide .382”D (9.7mm)Weight .14 oz (4g)
98110-0298110-042.2 dBI dipole onmi-directional antenna with anSMA male (plug) connector – rated at 300 ft. (90m)coverage in a typical indoor office and over 1,000ft. (300m) space in an open environment. Providedas standard equipment with the 11 Mbps ZoomAirwith an external attenna Wireless NetworkInterface Card and ZoomAir Hardware AccessPoints.4.0 dBic (circular) omni-directional antenna with anSMA female(jack) bulk-head connector forimproved indoor coverage or point-to-pointapplication use. Typical range: 450 ft.(135m) in anoffice environment and 1500 ft.(450m)unobstructed point-to-point application use.Mounting hardware included.98110-1398112-398112-198110-2113 dBi directional patch antenna with SMA female/jackconnector (for indoor or outdoor use) provides up to 1mile point-to-point range. Includes fully adjustablemounting bracket.3-meter low-loss cable with SMA male(plug) connectors(total loss of ~1.0 dB); includes an extension adapter(~0.2 dB loss).1-meter low-loss cable with SMA male(plug) connectors(total loss of ~0.5 dB); includes an extension adapter(~0.2 dB loss).2.15 dBi Miniature Dielectric Antenna with cable isprovided to OEMs for their installation within theirequipment.Contact Your ZoomAir Dealer or Visit www.zoom.comFootnotes:1 Gain: Decibel (dBi or dBic for circular) expression for the ratio of theradiation intensity in a given direction relative to a theo-retical isotropic(omni-directional) radiator.2 Polarization (Linear): A pattern requiring antennas to be placed in the sameorientation with close attention to polarization alignment angle (alignmentshould be within ±5° for optimum performance).3 Polarization (Right-hand circular): A pattern that reduces the effects ofreflections in a typical indoor environment (best suited as an access point).4 Azimuth: The radiation intensity pattern located in the horizontal plane.5 Installation must comply with FCC RF exposure requirements.Important Installation Note:ZoomAir and its resellers or distributors are not liable forinjury, damage, or violation of government regulations, or stateand local codes, associated with the installation and use ofZoomAir antenna products. Professional antenna installers arerecommended if there are any questions, concerns, unknowns,or liability risk with the handling of these products.Antenna Products and Application Summary
ANTENNAINSTALLATION INSTRUCTIONSCaution: For the purpose of satisfying FCC RF exposure compliance requirements, antennasshould be positioned in such a way that a separation distance of at least 20cm is maintainedbetween the transmitter’s radiating structures and the body of the user or nearby persons.■ DIPOLE ANTENNARemove the antenna from the box. You’ll notice that the antenna is L-shaped and theshort part of the L has a built-in connector with a silver hexagonal collar. The ZoomAirCard’s mating connector has a knurled brass collar.To maintain consistent antenna orientation, hold the antenna vertically and gently tightenthe hexagonal collar on the antenna body until the antenna stays in place. Do not attemptto turn the knurled brass collar on the PC Card. It is glued in place.■ OMNI-DIRECTIONAL ANTENNA1. Carefully remove the existing dipole antenna: Gently unscrew the hexagonal collar onthe antenna body. Do not attempt to turn the knurled brass collar on the PCCard. It is glued in place.2. Attach one end of the cable* to the omni-directional antenna and the other to theZoomAir PC Card. Again, be careful of the collar glued in place.3. 3A. If you are using a ZoomAir Hardware Access Point, mount the antenna in acentral location as an “umbrella” to provide optimal coverage.3B. If you are using ZoomAir in a point-to-point application, mount both antennas sothat they are facing each other in a line of sight orientation.■ DIRECTIONAL ANTENNA1. Carefully remove the existing dipole antenna: Gently unscrew the hexagonal collar onthe antenna body. Do not attempt to turn the knurled brass collar on the PCCard. It is glued in place.2. Attach one end of the cable* to the directional antenna and the other to the ZoomAirPC Card. Again, be careful of the collar glued in place.3. Using the supplied universal mounting and positioning hardware, position the antennain a vertical orientation so that the receiving antenna is in the line of sight.■ MINIATURE DIELECTRIC ANTENNA1. Mount the antenna as per OEM requirement2. Attach one end of the cable* to the ZoomAir PCMCIA Card. Again, be careful of thecollar glued in place.3. Attach the other end of the cable* to the antenna.* Sold separately See Antenna Options for Selection Information.Zoom is a registered trademark. ZoomAir is a trademarks of Zoom Telephonics, Inc.All other registered trademarks and trademarks used herein are the property of their respective holders.©2000 Zoom Telephonics, Inc. 25657-CNote: If you later want to reposition the antenna due to orientation changes, you must firstloosen the antenna’s hexagonal nut, reposition the antenna, and then retighten the nut.Note: With the omni-directional and directional antennas, you can couple cables to achieve arecommended maximum length of 6 meters before experiencing an unacceptable signal dB loss.ZOOM World HeadquartersZoom Telephonics, Inc., 207 South Street, Boston, MA 02111 USATel: 617-423-1072 Fax: 617-423-3923www.zoom.com

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