SMC Networks SMC2755W manuale d’uso

EZ Connect TM 802.11a W ir eless Access P oint ◆ Protocol-independent networking functionality ◆ 54Mbps data rate per channel (up to 72 Mbps in turbo mode): of fers a high data rate and reliable wireless connecti vity with considerable cost sa vings ov er wired LANs ◆ Cov erage area up to 1650 feet ◆ Seamless connecti vity to wired 10/100Mb[...]

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6 Hughes Irvine, CA 92618 Phone: (949) 707 -2400 EZ Connect TM User Guide From SMC ’ s EZ line of low-cost workgroup LAN solutions December 2001 Part No: 01-11132 0-006 Pub #: 1500000 13800AR01[...]

Copyright Information fur nished by SMC Networks, Inc. (SMC ) is believed to be ac curate and reliab le. However , no resp onsibility is assumed by SMC for its use, nor for any infring ements of patents or other rights of third parties which m ay result from its use. No license is granted by implication or otherwise under any patent or patent right[...]

i L IMITED W ARRANTY Limited W arranty Statement: SMC Networks, Inc. (“SMC”) warrants its products to be free from defects in workmanship and mat erials, under normal use and service, for the applicable warranty term. All SMC products carry a standard 90-day limited warranty from the date of purchase fro m SMC or its Authorized Reseller . SMC m[...]

L IMITED W ARRANTY ii W ARRANTIES EXCLUSIVE: IF AN SMC PRODUCT DOES NOT OPER A TE AS W ARRANTED ABOVE, CUSTOMER’S SOLE REMEDY SHALL BE REP AIR OR REPLACEMENT OF THE PRODUCT IN QUESTION, A T SMC’S OPTION. THE FOREGOING W ARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF ALL OTHER W ARRANTIES OR CONDITIONS, EXPRESS OR IMPLIED, EITHER IN F A[...]

iii C OMPLIANCES FCC - Class B FCC ID: HEDACC W A5001 This equipment h as been tested an d found to comply with the limits for a Cl ass B digital device , pursuant to Par t 15 of the FCC Rul es. These limit s are designed to provide reasonab le protection against harmful interferenc e in a residential installation . This equipment gen erates, uses [...]

C OMPLIANCES iv[...]

1 EZ C ONNECT ™ 802.11 A W IRELESS A CCESS P OINT I NTRODUCTION SMC’s EZ Connect 802.11a Wireless Acce ss Point (SMC2755W) is an access point that provides transparent, wireless high speed data communications between the wired LAN (and/or within the wireless netw ork) and fixed, po rtable or mobile devices equipped with a 802.11a wireless adapt[...]

EZ C ONNECT ™ 802.11 A W IR ELESS A CCESS P OINT 2 Please register this product and upgrade the product warranty at www.smc.com. Please infor m your dealer if there are any incorrect, missing or damaged parts. If possible, retain the carton, including the original packing materials. Use them again to repack the product in case there is a need to [...]

I NTR ODUCTION 3 Applications The EZ Connect Wireless products of fer a high speed, re liable, cost-effective solution for 10/100Mbps wireless Ether net client access to the network in applications such as: • Remote access to cor porate network information E-mail, file transfer and ter minal emulation • Difficult-to-wire environments Historical[...]

EZ C ONNECT ™ 802.11 A W IR ELESS A CCESS P OINT 4 LED Indicators The Wireless Access Point includes thr ee status LED indicators, as described in the following figure and table. LED Status Descripti on Power On Indicate s the power is bein g supplied. Flashing Indicates - • running a sel f-test • loading softwar e program • system errors ([...]

I NTR ODUCTION 5 System Requirements Before you install the Wireless Access Point, be sure you can meet the following req uirements: • An A/C power outlet (100~240 V, 50~60 Hz) which will supply power for the Access Point • An available RJ-45 (UTP) po rt on a 10/100Mbps Ethernet h ub or switch • 802.11a comp liant wireless Ethern et adapters [...]

EZ C ONNECT ™ 802.11 A W IR ELESS A CCESS P OINT 6 H ARDWARE I NSTALLATION SMC2755W - Top Panel 1. Select the Site – Choose a proper place for your SMC2755W Wireless Access Point. In general, the best location is at the center of your wireless coverage area, within line of sigh t to all wireless devices. 2. Placement of the Wireless Access Poin[...]

7 SMC2755W - Rear Panel 3. Connect the Ethernet Ca ble – The SMC2755W can be wir ed to a 10/100Mbps Et hernet through a network dev ice such as a hub or a switch. Connect to the RJ-45 connector socket on the back panel with category 3, 4 or 5 UTP Ether net cable and an RJ-45 connector . 4. Connect the Power Cable – Connect the powe r adapter ca[...]

EZ C ONNECT ™ 802.11 A W IR ELESS A CCESS P OINT 8 S YSTEM C ONFIGURATION The CD-ROM that comes with the package contains a utility program for t he EZ Connect Wirel ess Access Point. An y updates can be downloaded from SM C’s W eb site at: http://www. smc.com Note: Check the SMC website for more support options (See “Troubleshooting” on pa[...]

9 Windows Installation (98/2000/Me/NT/XP) 1. Insert the CD-ROM that comes with the package into the CD-ROM drive on your PC, and then enter the following command: “D: utilitysetup.” Fo llow the on-screen in structions to install th e utility program . 2. After you finish the installed u tility, choose “Programs,” then “SMC EZ Connect 80[...]

EZ C ONNECT ™ 802.11 A W IR ELESS A CCESS P OINT 10 5. The W eb management window will appear . Y ou can also manually launch a web browser from a PC and enter the IP address that is assigned to the SMC2755W . The SMC2755W 802.11a AP W eb-based con figuration page will be displayed. Setup Wizard 1. T o access the Access Point’s management inter[...]

S YSTEM C ONFIGURATION 11 3. Click on “Setup Wizard” to display basic configurations including SSID, Channel, Authentication Type and Standard WEP Setup. 4. Click on the “Next” button to start using the “1-2-3 Setup Wiza rd .” SSID – The Servi ce Set ID. This should be set to the same value as other wireless device s in your network. [...]

EZ C ONNECT ™ 802.11 A W IR ELESS A CCESS P OINT 12 up to 32 alphanumeric characters. Channel – Y ou can select “Enable” to have the Access Point operating in turbo mode with data rate up to 72 Mbps. (Default: Disable) Authenti cation T ype – Click on the “Shared Key” radio button to start filtering the frames with the addresses defin[...]

S YSTEM C ONFIGURATION 13 in the “Standard WEP Setup” screen. (Default: Open System)[...]

EZ C ONNECT ™ 802.11 A W IR ELESS A CCESS P OINT 14 Standard WEP Setup – For more secure data transmission, click on the “Enable” radio butto n to ensure wireless network security. Then select one shared key (1 ~ 4) and the proper key size. (WEP Default: Disable) Wired Equivalent Privacy (WEP) is imple mented in this device to prevent unaut[...]

S YSTEM C ONFIGURATION 15 Advanced Setup Click the “Advanced setup” on the right bottom corner to display additional infor mation about the Access Point configuration as shown below:[...]

EZ C ONNECT ™ 802.11 A W IR ELESS A CCESS P OINT 16 Note: The “Advanced Setup” screen allows you to v iew and change the current configurations of the Access Point. Aft er modifying the configuration parameters, you must click on the “Apply” button to save the changes. The new settings will not take effect until you click “Apply” to r[...]

S YSTEM C ONFIGURATION 17 Channel Radio Channel : The radio channel through which the Ac cess Point communicates to PCs in its BSS. (Default: “52” for U S and “38” for Japan) Note that the DC channel for wireless clients is automatically set to the same as that used by the Access Point to which it is linked. Note: The available channel sett[...]

EZ C ONNECT ™ 802.11 A W IR ELESS A CCESS P OINT 18 Note: During “N ormal Mode,” the ch annel bandwidth i s 20MHz. During “Turbo Mode,” the channel bandwidth is increased to 40MHz. However, there will only be three chan nels available when the “Tu rbo Mode” is enabled (Onl y 1 channel in Japan). Performance Data Rate : Select “ best[...]

S YSTEM C ONFIGURATION 19 Synchronization In order to obtain transmission, the Access Point and connected clients need to be synchronized. Beacon Interval (20-1000) : Set the interval value of beacon between synchronized frames. These synch ronous frames also contain indication of frames that nee d to transmit to the power-saved stations. (Default:[...]

EZ C ONNECT ™ 802.11 A W IR ELESS A CCESS P OINT 20 The DTIM is the interval between two syn chronous frames with broadcast infor mation. If you set the v alue to 2, th e access point will save all multicast frames for the BSS and forward them after every second beacon. Having smaller DTIM intervals delivers multicast frames in a mo re timely man[...]

S YSTEM C ONFIGURATION 21 RTS Len gth (256-2346) : Set the R TS (Request to Send) frame length. Y ou may configure the access point to initiate an RTS frame sequence always, never , or only on frames longer than a specified length. If the packet size is smaller than the preset R TS threshold size, the R TS/CTS me chanism will NOT b e enabled The ac[...]

22 by the network DHCP server . (Default: Disable) Note: If there is no DHCP server o n your network, then the access point will auto matically start up with its default IP address, 192.168.1.20. By using the Wireless Access Point’s built-in DHCP (Dyn amic Host Configur ation Protocol) serv er , you are allowing the W ireless Access Point to hand[...]

S YSTEM C ONFIGURATION 23 Encryption Wired Eq uivalent Priv acy (WEP) is implement ed in this device t o prevent unautho rized access to your wi reless network. The W EP setting must be the same on each client in your wireless network. For more secure data transmission, you may set the WEP to prevent unautho rized access to your wirele ss network. [...]

EZ C ONNECT ™ 802.11 A W IR ELESS A CCESS P OINT 24 If Shared Key is enabled, the WEP should be en abled and at least one shared key should be defined. But you can enable W EP , and set the authentication type as open system. Standard WEP Setup (WEP Default: Disable) Default Shar ed Key – Choose the Shared Key th at has the encryption string yo[...]

S YSTEM C ONFIGURATION 25 Using MAC Filter Set the MAC filter to filter out specified MAC addresses. The Access Control List (ACL) provides a mechanism to take certain actions based on the stations MAC addr ess. Any frames with a source or destination MAC address entered in this table will be filtered from the Access Point. How to Setup the Access [...]

EZ C ONNECT ™ 802.11 A W IR ELESS A CCESS P OINT 26 SNMP Use this screen to displ ay and enter a community string for th e Simple Network Management Protocol (SNMP). T o communicate with the Access Point, the SNMP agent must first be enabled, and the Network Man agement Station must submit a valid communi ty string for authentication. System Chan[...]

S YSTEM C ONFIGURATION 27 Factory Default Use the “Restore” button to load the factory d efault configuration and reboot this device. Note that all user configured inform ation will be lost. Y ou will also have to re-enter the password to r egain management access to this device. Upgrade Firmware Click “Browse” to locate the downloaded fir [...]

28 Access Point Status In the “AP Status” page, click the appropriate hyperlink to v iew the Access Point configuration, Access Point SME statistics (station association informatio n), or Access Point (transmit and receive) statistics. AP Configuration View the access point configuration[...]

S YSTEM C ONFIGURATION 29 AP SME (Station Management Entity) View the station association inf or mation AP Statistics View the transmit and receive statistics Connected Station Status In the “Station Status” page, click the appropriate h yperlink to view the station configuration, station SME statistics, and station statistics. The “Station S[...]

EZ C ONNECT ™ 802.11 A W IR ELESS A CCESS P OINT 30 Station Configuration Station SME[...]

S YSTEM C ONFIGURATION 31 Station Statistics[...]

EZ C ONNECT ™ 802.11 A W IR ELESS A CCESS P OINT 32 N ETWORK C ONFIGURATION AND P LANNING SMC’s EZ Connect Wireless Solution supports a stand-alone wireless network configuration as well as an integrated configuration with 10/100 Mbps Ethern et LANs. The SMC wireless network cards, adapters, access points and Wireless Access Point can be config[...]

N ETWOR K C ONFIGURATION AND P LANNING 33 Network Topologies Ad-hoc Wireless LAN (no AP or Bridge) An ad-hoc wireless LAN consists of a grou p of computers, each equipped with a wireless adapter , connected via radio signals as an independent wireless LAN. Computers in a specific ad-hoc wireless LAN must th erefore be configured to the same radio c[...]

34 Infrastructure Wireless LAN The SMC2755W can also provide access to a wired LAN for wireless workstations. An integ rated wired/wireless LAN is called an Infrastructure configuration. A Basic Service Set (BSS) consists of a group of wireless PC users, and an access point that is directly connected to the wired LAN. Each wireless PC in this BSS c[...]

N ETWOR K C ONFIGURATION AND P LANNING 35 Infrastructure Wireless LAN for Roaming Wireless PCs The Basic Service Set (BSS) is the communications domain for each Wireless Access Point. For wireless PC s that do not nee d to support roaming, set the domain identifier (SSID) for the wireless card to the BSS ID of th e Access Point to which you want to[...]

EZ C ONNECT ™ 802.11 A W IR ELESS A CCESS P OINT 36 T ROUBLESHOOTING Check the following items before you contact SMC Technical Support. 1. If mobile users do n ot have roaming access to the SMC 2755W Wireless Access Point, check the following: Make sure that all the SMC2755Ws and wireless devices in the ESS in which the WLAN mobile users can roa[...]

37 SMC Networks 802.11a Wireless Products Maximum Distance Table Important Notice Maximum distances posted below are actual tested distance thresholds. However , there are many variab les such as barrier composition and construction and local environmental interference that may impact your actual distances and cause you to experience distance thres[...]

EZ C ONNECT ™ 802.11 A W IR ELESS A CCESS P OINT 38 S PECIFICATIONS Model SMC2755W Maximum Channels US & Canada: 8 (nor mal mode), 3 (turb o mode) Japan: 5 (nor mal mode), 1 (turbo mo de) Maximum Clients 64 Operating Range Up to 1,650 feet Data Rate Normal Mode: 6, 9, 12, 18, 24, 36, 48, 54 M bps per channel Turbo Mode: 12, 18, 24, 36, 48, 72[...]

S PECIFI CATIONS 39 Sensitivity Modulation/Rates Sensitivity (dBm) BPSK (6Mbps) -85 BPSK (9Mbps) -84 QPSK (12Mbps) -83 QPSK (18Mbps) -81 16 QAM (24Mbps) -78 16 QAM (36Mbps) -74 64 QAM (48Mbps) -69 64QAM(54Mbps) -65 BPSK Turbo (12Mbps) -82 BPSK Turbo (18Mbps) -81 QPSK Turbo (24Mbps) -80 QPSK Turbo (36Mbps) -78 16 QAM Turbo (48Mbps) -75 16 QAM Turbo [...]

EZ C ONNECT ™ 802.11 A W IR ELESS A CCESS P OINT 40 Modulation Modulation 5.15-5.25GHZ (dBm) 5.25-5.35GHZ (dBm) BPSK(6Mbps) 16 20 BPSK(9Mbps) 16 20 QPSK(12Mbps) 16 19 QPSK(18Mbps) 16 19 16 QAM(24Mbps) 16 18 16 QAM(36Mbps) 16 18 64 QAM(48Mbps) 16 16 64 QAM(64Mbps) 14 14 BPSK Turbo(12Mbps) 16 20 BPSK Turbo(18Mbps) 16 20 QPSK Turbo(24Mbps) 16 19 QPS[...]

S PECIFI CATIONS 41 Power supply Input: 100-240 AC, 50-6 0 Hz; Output: 3.3 V DC, 4 A Output Power 16 dBm mini mum Physical Size 8.07 x 5.35 x 1.5 8 in, (20.5 x 13. 6 x 4 cm) We i g h t 9.9 oz (280 grams) LED Indicators Power , Ether net Link/Activity, Wireless Link/Activity Network Management HTML W eb-browser inter face, Windows 98/NT/2000/Me/XP u[...]

EZ C ONNECT ™ 802.11 A W IR ELESS A CCESS P OINT 42 Emissions ETS 300 328 RCR STD-33A Safety CSA/NTRL (CSA 22.2 No. 950 & UL 1950) EN60950 (T Ü V/GS), IEC60950 (CB) Standar ds IEEE 802.3 10BASE-T , IEEE 80 2.3u 100BASE-TX, IEE E 802.11a Wa r r a n t y Limited Lifetime[...]

T ER MINOLOGY 43 T ERMINOLOGY The following is a list of ter minology that is used in this docume nt. Access Point – An inter networking device that seamlessly connects wired and wireless networks. Ad-Hoc – An Ad-Hoc wireless LA N is a group of computers each with LAN adapters, connected as an independent wireless LAN. Backbone – The core inf[...]

EZ C ONNECT ™ 802.11 A W IR ELESS A CCESS P OINT 44 Ethernet – A popular local area d ata communications network, which accepts transmission from computers and termin als. Ethernet operates on a 10 Mbps base band transmission rate, u sing a shielded coaxial cable o r over shielded twisted pair tele phone wire. Infrastructure – An integrated w[...]

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6 Hughes Irvine, CA 92618 Phone: (949) 707-2 400 FOR TECHNICAL SUPPOR T , CALL: From U.S.A. and Canada (2 4 hours a day , 7 days a week) (800) SMC-4-Y OU; (949) 707-2400; (949) 7 07-2460 (Fax ) From Europe (8:00 AM - 5:30 PM UK Greenwich Mean T ime) 44 (0) 1188 7487 40; 44 (0) 1189 748741 (F ax) INTERNET E-mail address: techsupport@smc.com tech.sup[...]