Electronic Systems Technology ESTEEM195EG 802.11b/g wireless AP User Manual Chapter 0 Front Cover 195Eg

Electronic Systems Technology 802.11b/g wireless AP Chapter 0 Front Cover 195Eg

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Users manual part 2 of 2

CHAPTER 4CONFIGURATION SETUPRevised: 25 Jun 04 4-1EST P/N AA107GPROGRAMMING EXAMPLEListed in this chapter we will give you an overview programming the most common use of the Model 195Eg, as a wirelessAccess Point Bridge to a hardwired LAN with Repeater Enabled. In these examples we will program the Model 195Eg from theunit’s Web Configuration Manager’s Setup.Access Point Bridge with Repeater Enabled1. Review the Access Point Bridge diagram. See Figure 1.2. Refer to the top left corner of Figure 1 to the Model 195Eg that is interfaced to the Hub or Switch. This unit is configured asa wireless Access Point Bridge to the hardwired LAN. In this example the Model 195Eg will have to be programmed in theAccess Point Bridge Mode described in Chapter 1. This Model 195Eg will serve as the base node for 802.11g clients. 3. If you have not defined the IP address of the Model 195Eg then follow the instructions in Chapter 2.4. Access the ESTeem Web page using your computer’s Web Browser as per instructions in Chapter 3 under Logging On Tothe ESTeem Web Configuration Manager.Figure 1: Access Point Bridge Diagram
CHAPTER 4CONFIGURATION SETUPRevised: 25 Jun 04 4-2EST P/N AA107G5. From the Model 195Eg Top menu select Setup. From the Select Mode of Operation pull down box , select AP Bridge andpush the Next button below the pull down box. You will now see the screen shown in Figure 2. Note: Throughout theConfiguration Manager are Help Screens that can accessed for further information on each item.6. Select Yes if you want to use Dynamic Host Configuration Protocol (DHCP) client services. If you want to enter a static IPaddress for the Model 195Eg, select No and press the Next button. Reference Figure 3.Figure 2: Access Point Bridge Setup ScreenFigure 3: DHCP Client Setup Screen
CHAPTER 4CONFIGURATION SETUPRevised: 25 Jun 04 4-3EST P/N AA107G7. Enter the IP Address and IP Netmask for the Model 195Eg. If you want to be able to access the Model 195Eg over theEthernet network for diagnostics and updates the IP address must be on the same network as the other Ethernet devices. Reference Figure 4.8. Enter the DNS server information. If you are not connecting the Model 195Eg to the Internet, leave blank and press the Nextbutton. Figure 5.Figure 4: IP Address Setup ScreenFigure 5: DHCP Setup Screen
CHAPTER 4CONFIGURATION SETUPRevised: 25 Jun 04 4-4EST P/N AA107G9. Select if you will be using security for your wireless network. Enter the SSID for you 802.11g network. The SSID is theunique identification for your wireless network and all 802.11g devices that share a wireless network MUST have the sameSSID code. This identification code is case sensitive and must NOT contain spaces. Reference Figure 6.10. Select the encryption level for the wireless network. If you would like to hide the SSID from broadcasting from the AccessPoint select Yes. If Yes is selected the Model 195Eg will not send out periodic SSID radio beacons that can be identifiedwith 802.11b network scanning software. The users of the network will have to know the SSID to enter the network andsecurity is increased, but if you want the SSID to be broadcasted to the network for easy identification then select No.Reference Figure 7.Figure 6: SSID Setup ScreenFigure 7: Encryption Setup Screen
CHAPTER 4CONFIGURATION SETUPRevised: 25 Jun 04 4-5EST P/N AA107G11. Continue through the configuration screens using the Help menus for further questions until you reach the Commit Changesmenu screen. Press the Commit Changes button and Model 195Eg will save your configuration, reboot the unit, and operatewith the commands you have selected. Reference Figure 8.Figure 8: Commit Changes Menu Screen
CHAPTER 5REPEATING FEATURESRevised: 25 Jun 04 5-1EST P/N AA107GThe Repeating Feature in the Model 195Eg is used toincrease the wireless network area of coverage for bothindoor and outdoor applications without the cost ofhardwiring the Access Points to a common LAN. Thiscustom feature is unique to the Model 195Eg becauseconventional 802.11b/g Access Points have to beinterfaced to a common network either by hardwire, seeFigure 1, or a dedicated point to point RF backbone.When programmed in the Access Point (AP) Repeater Mode, the Model 195Eg will automatically create a wireless network withother Model 195Eg units in radio range that are programmed in AP Repeater mode and setup with matching configurations. This feature adds the increased functionality of repeaters to the typical Ethernet Bridge configuration.AutoRoutingOne of the most powerful features of the RepeaterFeature mode is the Model 195Eg’s ability toautomatically calculate all possiblecommunication routes in the network. TheAutoRoute feature will automatically establishwireless Ethernet communication paths to eachModel 195Eg that has a matching setupconfiguration. This automatic routing greatlysimplifies network configuration and also createsa “self healing” network by sending data on analternate route, if available, upon failure of theprimary path.AutoRouting ProcessListening Phase. Once a modem is configuredfor Access Point Repeater mode and reset, theModel 195Eg will begin to search out all modems that have a matching configuration setup (SSID, Frequency Channel, APRepeater Mode = ON and Security Codes). The first step in the routing process is sending out and listening for “repeaterbeacons”. A repeater beacon is a special radio packet that is sent from the Model 195Eg that contains the unit’s MAC address. When a repeater beacon is received by another Model 195Eg, the MAC address of the originating modem is added to its ownrepeater beacons. A route between two Model 195Eg units can be established when they receive a repeater beacon thatcontains their own address. For example let’s look at Figure 2 and the repeater beacons and the route created from Pump Site C and Tank Site B(Repeater). Pump Site C sends a repeater beacon containing its MAC address over the radio network. The only site that receives thisrepeater beacon is Tank Site B (Note – there is no Line-of-sight (LOS) between from Pump Site C to the other sites in thenetwork). When Tank Site B receives the repeater beacon it adds the MAC address from Pump Site C to its own repeaterbeacon and sends it out. This new repeater beacon from Tank Site B (Now containing Pump Site C’s MAC address) is receivedat Pump Site C and a route is established. Pump Site C then adds the MAC address for Tank Site B in its repeater beacon, whichis eventually received by Tank Site B. Repeater beacons will continually be sent from a Model 195Eg every 2 seconds as long as it is configured in AP Repeater mode. This will allow the Model 195Eg to recognize new sites into the network and any changes to the radio paths. These continuedupdates in the repeater beacons give the AP Repeater network the “self-healing” characteristic. Figure 1: Conventional Access Point DiagramFigure 2: AP Repeater Diagram
CHAPTER 5REPEATING FEATURESRevised: 25 Jun 04 5-2EST P/N AA107GLearning Phase. After an approximate 10-second period after no further additions to the Mac addresses in the repeaterbeacons, the Model 195Eg goes into the learning phase. In this phase all Model 195Eg units calculate their routes to the otherModel 195Eg units in the network using the lowest “path cost”, meaning shortest number of hops, back to the Root Bridge. Note: The Root Bridge in a network should be the Model 195Eg where the majority of the data flow is processed. In Figure 2,the Root Bridge will be the Water Plant that is transmitting and receiving data from all three remote sites. The user can programthe Root Bridge manually. If the user does not define the Root Bridge, and if there are multiple candidates for the Route Bridge,Model 195Eg units in the network will pick the unit with the lowest MAC address. See the following section on Root Bridge forfurther details. Blocking and Forwarding Phase. This last phase in the auto-routing process will eliminate any Ethernet data “loops” that candouble the information received at any remote site. For example, looking at Figure 2, Pump Site D has two routes to the RootBridge (Water Plant – Site A). The first Route is direct from the Water Plant and the second Route is via the Tank Site B(Repeater site). In this example the direct link between the two sites is the shortest route (lowest Path Cost) and will be selectedas the primary route or Forward route. The second route (one with the higher Path Cost) that uses the repeater will be“Blocked”. All routes to the Root Bridge will be evaluated for the site and be Forwarded or Blocked. The average time tocomplete all routing phases in a network is approximately 30 seconds.Root BridgeFor any Access Point Repeater application that has more than two sites, the user needs to set one of the Model 195Eg’s as theRoot Bridge. The Root Bridge should be the Model 195Eg where the majority of the Ethernet data flow is processed. This sitemay be the Master location in a SCADA network or could be configured at a repeater site. Selection is important because, allthe Model 195Eg’s that are “NOT” configured as the Root Bridge will select their routing based upon where the Root Bridge isdefined in the network.The Root Bridge will be selected in one of two ways:1. Manually by the users. The Root Bridge can be manually set (recommended) during the configuration at AP Repeatermode. Reference Chapter 4 – AP Repeater Configuration.2. Automatically by the Model 195Eg. The Model 195Eg units will automatically configure the Root Bridge by selecting thelowest MAC address of all the Model 195Eg units in the network. This is usually not recommended in large networks,because adding a new site to the network could adversely change the entire site’s routing scheme.If you have any question establishing Route Bridges in your network, contact ESTeem Customer Support at 509-735-9092 or e-mail your application to support@esteem.com .
CHAPTER 5REPEATING FEATURESRevised: 25 Jun 04 5-3EST P/N AA107GUsing the Access Control List (ACL) In Network DesignAs mentioned above, the shortest route to the Root Bridge may not be thebest radio path. As seen in Figure 2 the radio path from Pump Site D to theWater Plant – Site A has a marginal link. Although the shortest route fromPump Site D to the Water Plant is direct, the best radio path is using therepeater site at Tank Site B. To force the radio path through the repeater isas simple as setting the ACL in the Pump Site D Model 195Eg to Deny theMac address of the Water Plant. This will force all communications fromPump Site D to the Water Plant via Tank Site B.Figure 3: ACL Configuration Example
CHAPTER 6ANTENNA SETUPSRevised: 12 Aug 04 6-1 EST P/N AA107GANTENNA AND CABLE CONFIGURATIONSWarning: Only the tested cable lengths and antennas provided by EST meet the FCC maximum peak output powerrequirements. Any other combination of antennas or coax cables is not authorized.EST offers different types of antennas for both indoor and outdoor configurations.Part Number: AA01S• Omni-directional, rubber duck, direct mount, unitygain antenna.• Indoors and short range outdoor applications.• There must be a minimum separation distance of 20cm. from the antenna to the user. See Warnings.Part Number: AA20DMg• Omni-directional direct mount antenna, 3 dBd gain.• Indoor and outdoor applications.• There must be a minimum separation distance of 20cm. from the antenna to the user. See Warnings.Part Number: AA20Eg• Omni-directional external pole mount antenna, 6 dBdgain with 3-ft. integral feedline and connector.• Outdoor applications.• Antenna port B is not used in this configuration.• There must be a minimum separation distance of 20cm. from the antenna to the user. See Warnings.Part Number: AA203Eg• Directional pole mount antenna, 8 dBd gain with 3-ft.integral feedline and connector.• Point to point and point to multi-point outdoorapplications.• Antenna port B is not used in this configuration.• There must be a minimum separation distance of 20cm. from the antenna to the user. See Warnings.Part Number: AA204Eg• Directional pole mount antenna, 17 dBd gain with 3-ft.integral feedline and connector.• Point to point applications only.• Antenna port B is not used in this configuration.• There must be a minimum separation distance of 50cm. from the antenna to the user. See Warnings.AntennaPort AAntennaPort BNotes:Antenna Port A is a transmit and receive port for use inall applications.Antenna Port B is a receive only port and is used fordual diversity antennas applications only. This port isnot used for point to point applications.Warnings: Only pre-made coax cables from the factory used inconjunction with either the AA20Eg omni-directionaland AA203Eg or AA204Eg directional antennas meetall FCC Section 15.247(b) EIRP maximum powerrequirements.Use of the AA204Eg, directional antenna is limited tofixed point to point applications only. In accordanceFCC Section 15.247(b)iii, the operator or installer isresponsible for ensuring the systems is used exclusivelyfor fixed, point-to-point applications.
CHAPTER 6ANTENNA SETUPSRevised: 12 Aug 04 6-2 EST P/N AA107GCOAXIAL CABLE ATTENUATIONListed below are representative cable losses in db/100 ft at the 2.4 GHz frequency range:Feedline Type Attenuation(dB/100 ft.) @ 2.4 GHzRG-8 (Solid) 7LMR 600 4.43/8" Heliax 6.51/2" Heliax 3.57/8" Heliax 21.25" Heliax 1.6Note: A -3 dB loss means you have lost 1/2 of your signal or transmitter power. A +3 dB gain means you have doubled(x2) your signal or transmitter power.Example:A 6 dB antenna will increase the radiated output power of a 1 watt transmitter to 4 watts {times 4 = 3 dB (x2) + 3 dB(x2)} and increase the received signal strength to receiver times 4
CHAPTER 6ANTENNA SETUPSRevised: 12 Aug 04 6-3 EST P/N AA107G
CHAPTER 6ANTENNA SETUPSRevised: 12 Aug 04 6-4 EST P/N AA107G
CHAPTER 6ANTENNA SETUPSRevised: 12 Aug 04 6-5 EST P/N AA107GFRESNEL ZONEThe Fresnel zone shows the ellipsoid spread of the radio waves around the visual line-of-sight after they leave the antenna (seefigure above). This area must be clear of obstructions or the signal strength will be reduced due to signal blockage. Typically,20% Fresnel Zone blockage introduces little signal loss to the link. Beyond 40% blockage, signal loss will become significant. This calculation is based on a flat earth. It does not take into account the curvature of the earth. It is recommended for RF pathlinks greater than 7 miles to have a microwave path analysis done that takes the curvature of the earth and the topography ofthe terrain into account.Fresnel Zone Radius = 72.1 SQRT [(d1d2) / (F(d1 + d2)] UnitsFresnel Zone Radius in feet.d1 and d2 in statue milesF in GHz
APPENDIX AFCC INFORMATIONRevised: 26 Jun 04 APX A-1 EST P/N AA107GINFORMATION TO USERSThe ESTeem Model 195Eg complies with Part 15 of theFCC Rules. Operation is subject to the following twoconditions: (1) This device may not cause harmfulinterference, and (2) this device must accept anyinterference received, including interference that maycause undesired operation.Note to User:Changes or modifications to this equipment not expresslyapproved by Electronic Systems Technology forcompliance could void the user's authority to operate theequipment.Other InformationModel 195EgDirect SequenceFCC Type Acceptance No: ENPESTEEM195EGThis equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of theFCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment isoperated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if notinstalled and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will berequired to correct the interference at his own expense.
APPENDIX AFCC INFORMATIONRevised: 26 Jun 04 APX A-2 EST P/N AA107GFEDERAL COMMUNICATIONS COMMISSION FIELD OFFICESALASKA1011 E. Tudor Rd.Rm 240 Box 2955Anchorage, AK 99510CALIFORNIAInterstate Office Park4542 Ruffner St., Room 370San Diego, CA 92111-2216Los Angeles Office (LA)Ceritos Corporate Tower18000 Studebaker Rd., Room 660Cerritos, CA 90701-3684San Francisco Office (SF)5653 Stoneridge Drive, Suite 105Pleasanton, CA 94588-8543COLORADODenver Office (DV)215 S. Wadsworth Blvd., Suite 303Lakewood, CO 80226-1544FLORIDA919 Federal Bldg51 SE First Ave.Miami, FL 33130Tampa Office (TP)2203 N. Lois Ave., Room 1215Tampa, FL 33607-2356GEORGIAAtlanta Office (AT)3575 Koger Blvd., Suite 320Duluth, GA 30096-4958HAWAII7304 Prince KuhiFederal BuildingHonolulu, HIILLINOISChicago Office (CG)Park Ridge Office Ctr., Room 3061550 Northwest HighwayPark Ridge, IL 60068-1460LOUISIANANew Orleans Office (OR)2424 Edenborn Ave. Suite 460Metarie, LA 70001MARYLAND1017 Geo. FallonBuilding 31Hopkins PlazaBaltimore, MDMASSACHUSETTSBoston Office (BS)1 Batterymarch ParkQuincy, MA 02169-7495MICHIGANDetroit Office (DT)24897 Hathaway StreetFarmington Hills, MI 48335-1552MINNESOTA691 Federal Building316 N Robert St.St. Paul, MNMISSOURIKansas City Office (KC)520 NE Colbern RoadSecond FloorLee’s Summit, MO 64086NEW YORK1307 Federal Building111 W. HuronBuffalo, NY 14202NEW YORKNew York Office (NY)201 Varick Street, Suite 1151New York, NY 10014-4870OREGON1782 Federal Building1220 SW 3rd AvenuePortland, OR 97204PENNSYLVANIAPhiladelphia Office (PA)One Oxford Valley Office Bld.Room 4042300 E. Lincoln HwyLanghorne, PA 19047-1859PUERTO RICO747 Federal BuildingCarlo Chardon Ave.Hato Rey, PR 00918TEXASDallas Office (DL)9330 LBJ Freeway, Room 1170Dallas, TX 75243-34295636 Federal Building515 Rusk AvenueHouston, TX 77002WASHINGTON DCColumbia Office (CF)9300 East Hampton DriveCapitol Heights, MD 20743WASHINGTONSeattle Office (ST)11410 NE 122nd WayRoom 312Kirkland, WA 98034-6927
APPENDIX BSPECIFICATIONSModel 195Eg SpecificationsRevised: 2 Jul 04 APX B-1EST P/N AA107GLED IndicatorsPower On/Off Receiver On/OffCarrier Detect On/Off Transmitter On/OffLink Status On/OffI/O ConnectorsEthernet 10/100Base T RJ-45RS-232C Programming Port RJ-45Dual Antenna input/Outputs TNC Reverse FemaleRemote Input Power Power Over Ethernet CableDirect Input Power Optional, Header Screw ConnectorTransmiterFrequency of Operation 2.412 to 2.462 GHzSoftware Selectable in 11 ChannelsRF Data Rates 1,2,5.5,6,9,11,12,18,24,36,48, & 54 Mbps Fixed or Auto ScalingTx Output Power 1 WattRF Output Impedance 50 ohmsReceiverRx Sensitivity -68 dBm @54 Mbps to –89 dBm @ 1 MbpsFrame Error Rate <10%PowerPower over Ethernet IEEE 802.3af Standard Power Supply,48 VDC @ 13 WattsPower Connector on Unit 10 to 16 VDCReceive 320 ma @ 12 VDCTransmit 1000 ma @ 12 VDCCaseDimensions 1.9 in. H x 6.7 in. W x 6.2 in. LWeight 1.25 lbs.Outdoor Pole Mounting Kit Optional, EST P/N 195PMOtherWarranty 1 YearTemperature Range -30° to +60° CHumidity 95% Non-condensingFCC Type Acceptance PendingIndustry Canada Type Acceptance PendingSpecifications Subject to Change Without Notice
APPENDIX BSPECIFICATIONSModel 195Eg Case SpecificationsRevised: 2 Jul 04 APX B-2EST P/N AA107G
APPENDIX BSPECIFICATIONSAntenna SpecificationsRevised: 2 Jul 04 APX B-3EST P/N AA107GModel No: AA01SAntenna Type: Omni-Directional, variable angle rubber duckApplications:Direct mountFrequency: 2400 to 2485 MHzPolarization: VerticalImpedance: 50 ohmsGain: UnityVSWR: < 1.5Front to Back Ratio: n/aHorizontal Beamwidth: n/aVertical Beamwidth: n/aAntenna Material: Rubber duct whip.Mounting Hardware: n/aAntenna Connector:TNC-R MaleAntenna Envelope: 4.25 in. length by 1.75 in widthWeight: .08 lbs.Model: AA20DMEgApplications: Model 195Eg direct case mountAntenna Type: Omni-Directional, Sleeve dipoleFrequency: 2400 to 2485 MHzPolarization: VerticalImpedance: 50 ohmsGain: 5 dBi (3 dBd)VSWR: < 2:1Power: 10 WFront To Back Ratio: n/aHorizontal Beamwidth: n/aVertical Beamwidth: n/aAntenna Material: Polyurethane Plastic RadomeRecommended Mounting Hardware: n/aAntenna Connector: TNC-R MaleFlexibility: +/- 20 °Antenna Envelope: 8.28 in. length by .54 in. widthTemperature: -40 to +70 C°Weight: 33 gramsModel AA01SModel AA20DMEgCautionOmni-directional antennashould not be located within20 cm of personnel.CautionOmni-directional antennashould not be located within20 cm of personnel.
APPENDIX BSPECIFICATIONSAntenna SpecificationsRevised: 2 Jul 04 APX B-4EST P/N AA107GModel No: AA20EgAntenna Type: Omni Directional, DC GroundedApplications:Fixed baseFrequency: 2400 to 2483.5 MHzPolarization: VerticalImpedance: 50 ohmsGain: 4dBd (6 dBi)VSWR: < 1.5Front to Back Ratio: n/aHorizontal Beamwidth: n/aVertical Beamwidth: 20 degrees @ ½ powerAntenna Material: Copper alloy radiator, UV inhibitedfiberglass enclosedMounting Hardware: Aluminum bracket for mountingto 1 ¼ to 2 in. diameter mast included.Antenna Connector:TNC-R Male with 36in. pig-tail.Antenna Envelope: 11.6 in. length by 1.25 in. diameterWeight: .4 lbs.Mounting BracketModel AA20EgCautionTo comply with the FCCexposure compliancerequirements, a separationdistance of at least 20 cmmust be maintained betweenthe antenna and all persons.
APPENDIX BSPECIFICATIONSAntenna SpecificationsRevised: 2 Jul 04 APX B-5EST P/N AA107GModel No: AA203EgAntenna Type: Directional, DC groundedApplications:Fixed base.Frequency: 2400 to 2485 MHzPolarization: Vertical or HorizontalImpedance: 50 ohmsGain: 8 dBd (10 dBi)VSWR: < 1.5Front to Back Ratio: 23 dBHorizontal Beamwidth: 55 degrees @ ½ powerVertical Beamwidth: 55 degrees @ ½ powerAntenna Material: Sealed in UV stable fiberglass enclosed radomeMounting Hardware: Stainless steel U bolts (included) for mounting upto 1 5/8 in. diameter pipe.Antenna Connector:TNC-R Male with 36in. pig tailMaximum Power Input: 5 WattsAntenna Envelope: 4.5 in. length by 3 in. diameterWindload (RWV): 125 mphLateral Thrust atRated Wind: 5.8 lbs.Wind Surface Area: 0.060 ft2Weight: 1 lbs.Model AA203EgCautionTo comply with the FCCexposure compliancerequirements, a separationdistance of at least 20 cmmust be maintainedbetween the antenna and allpersons.
APPENDIX BSPECIFICATIONSAntenna SpecificationsRevised: 2 Jul 04 APX B-6EST P/N AA107GModel No: AA204EgApplications: Fixed base mountingAntenna Type: 2.4 GHz ISM, Directional, DC Grounded, Parabolic GridFrequency: 2400-2485 MHzPolarization: Vertical or HorizontalImpedance: 50 ohmsGain: 17 dBd (19 dBi) nominalVSWR: < 1.5:1 nominalFront to Back Ratio: >24 dBHorizontal Beamwidth:16 degrees @ ½ powerVertical Beamwidth: 11 degrees @ ½ powerAntenna Material: Zinc plated cold rolled steel with polyester powercoat finishRecommended MountingHardware: Standard U-bolt steel mast clamp complete withmounting hardware. Designed for masts of up to2.5 in. O.D.Antenna Connector:TNC-R Male with 36 in. pig-tailMaximum Power Input: 10 WattsWind Survival: 100 mphWind Load: 16 mphAntenna Envelope: 34 in. length by 17 in. width by 11 in. heightWeight: 3 lbs.Model AA204EgCautionTo comply with the FCC exposurecompliance requirements, aseparation distance of at least 50 cmmust be maintained between theantenna and all persons.Use of the AA204Eg, directional antenna is limited to fixed point to point applications only. In accordance FCCSection 15.247(b)iii, the operator or installer is responsible for ensuring the systems is used exclusively forfixed, point-to-point applications.

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