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NetWave NWTAP-100 User Manual

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NWTAP-100 user guide
NWTAP-100
Wireless Tap
User Guide
Preliminary Release 1.0, Issue 2
March 12, 2007
Netwave Co., Ltd.
1
Netwave Proprietary and Confidential

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Summary of Contents for NetWave NWTAP-100

  • Page 1 NWTAP-100 user guide NWTAP-100 Wireless Tap User Guide Preliminary Release 1.0, Issue 2 March 12, 2007 Netwave Co., Ltd. Netwave Proprietary and Confidential...

  • Page 2: Table Of Contents

    NWTAP-100 user guide Contents Overview ........................3 1.1. Introduction......................3 1.2. Product Description ................... 4 Installation ....................... 11 2.1. Unpacking and Content Checking ..............11 2.2. Remove Current Tap ..................12 2.3. Install the Wireless Tap ................... 12 2.4. Attach the Antenna..................13 2.5.

  • Page 3: Overview

    Overview 1.1. Introduction This document describes the features of the wireless tap NWTAP-100 as well as how it can be installed to provide the most effective service to end users. The NWTAP-100 is an outdoor hardened wireless lan access point solution which uses an internal cable modem as the backbone interface and AC line power from the feeder cable for power.

  • Page 4: Product Description

    NWTAP-100 user guide 1.2. Product Description 1.2.1. NWTAP-100 The following is a list of NWTAP-100’s main features. Includes an internal DOCSIS 2.0 cable modem Trunk AC power can be used to power the wireless tap Trunk input and output as well as subscriber output ports are in the same...
  • Page 5 NWTAP-100 user guide 8-tap top Strand mounting fixture 8-tap bottom Subscriber F-connector with terminating load Faceplate screws Tap dB value Plastic cap 8-tap sides Product serial marking. 060602 : production year+month+date : product name FF26BA : MAC address which follows the OUI “000200”...
  • Page 6 NWTAP-100 user guide 16-tap front 16-tap back 16-port faceplate adaptor 16-tap bottom Netwave Proprietary and Confidential...
  • Page 7 NWTAP-100 user guide 16-tap sides Fig. 1 NWTAP-100 external features Netwave Proprietary and Confidential...
  • Page 8 NWTAP-100 user guide Fig. 2 NWTAP-100 block diagram As shown in fig. 2, the trunk line RF is sampled to the tap-off splitter circuit as in a conventional tap-off but part of this signal is also coupled to an internal cable modem.
  • Page 9 NWTAP-100 user guide Main spliiter trunk IN trunk OUT -Y dB -1dB (16Mhz HPF) -0.5dB (connector) -17dB cable modem -1dB -0.5dB (connector) -12dB subscriber OUT Fig. 3 RF signal level within the wireless tap The above figure shows the RF signal level attenuation as they pass through the wireless tap with 8 subscriber ports.
  • Page 10 NWTAP-100 user guide 1.2.2. Antenna The antenna connection via a standard SMA connector and a flexible antenna attaching structure on the housing consisting of 12 screw positions allow a wide range of antennas to be supported. If the antenna size is too big for direct attachment to the housing, it maybe attached to a separate stable structure and connected via RF cable from the SMA connector.

  • Page 11: Installation

    NWTAP-100 user guide Installation As shown below in the system configuration diagram, the wireless tap is by default a replacement for the conventional tap which is strand mounted. The strand mounting allows the wireless tap to have a wide open coverage which is beneficial towards improving signal reception on the client side.

  • Page 12: Remove Current Tap

    NWTAP-100 user guide Antenna fixture screws Omni directional antenna Fig. 5 Contents 2.2. Remove Current Tap The wireless tap will replace the conventional tap. The conventional tap to be replaced shall be selected based on the site survey and planning result..

  • Page 13: Attach The Antenna

    NWTAP-100 user guide Insert shrink tubing into the trunk cable on the input and output ports Mate the main nut and trunk cable to the body connector and tighten Secure the center conductor into the tap housing using the seizing screw Shrink the tubing with a propane torch 2.4.

  • Page 14: Insert The Power

    NWTAP-100 user guide Attach the antenna to the housing using the four screws Use the antenna cable to connect the N-type connector on the antenna to the SMA type connector on the housing, In order to ensure the best wireless signal level, the connectors should be tightened well Fig.
  • Page 15 NWTAP-100 user guide Verify that the wireless signal strength(the received power level) shown by the client utility when the client is below or close to the wireless tap is >-55dBm Check the notebook IP using the “ipconfig” command in the command prompt and verify that it has acquired the correct IP from the CMTS DHCP server or has acquired the IP 192.168.x.x from the DHCP server...

  • Page 16: Performance Measurement

    NWTAP-100 user guide 2.7. Performance Measurement At the client location, the signal strength shown by the client utility should typically be >-75dBm. At such a power level, wireless tap can produce the maximum throughput which would be a limitation of the cable modem.

  • Page 17: Wlan Site Survey And Planning

    NWTAP-100 user guide WLAN Site Survey and Planning The 802.11b/g standard uses the 2.4Ghz frequency. This high frequency radio travels in a straight forward line and a clear LOS(Line Of Sight) path between the wireless tap antenna and the subscriber antenna is the ideal situation.

  • Page 18: Rf Channel Selection

    NWTAP-100 user guide 3.3. RF Channel Selection As described in the “Installation” chapter, the frequency band occupied by the wireless LAN can be scanned using a client utility or it can be scanned using measurement equipment such as spectrum analyzer.

  • Page 19: Configuration

    NWTAP-100 user guide Configuration 4.1. Webui based configuration 4.1.1. Web menu structure Login Modem Gateway Firewall Information Information Content filter Setup Status Event log DHCP Downstream Remote log Static Lease Upstrream Parental Time Upstrream Control burst User setup Options Operation...
  • Page 20 NWTAP-100 user guide 4.1.2. Login method After establishing wireless link to the wireless tap web page maybe accessed locally using http://192.168.100.1:64680. This IP address can be accessed if the PC’ s IP address is set to 192.168.100.x or the PC has acquired IP via a DHCP Server.
  • Page 21 NWTAP-100 user guide 4.1.3. MODEM This page shows the relevant pages related to management of the cable modem internal to the wireless tap. Information : shows the cable modem mac address or it’ s software and hardware version. Status : shows the current status of the cable modem.

  • Page 22: Wireless

    NWTAP-100 user guide 4.2. WIRELESS This menu is displayed when the “ WIRELESS” menu is selected on the top right corner. Four submenus show the wireless LAN related information. Netwave Proprietary and Confidential...

  • Page 23: Wireless/Basic Submenu

    NWTAP-100 user guide 4.3. Wireless/Basic submenu Network Name (SSID) : the default SSID is “hanaro-tap” Broadcast SSID : SSID maybe broadcast or hidden (default : enable) Channel : used to set the WLAN channel (default : 1) Interface : disable or enable WLAN (default : enable) 4.4.

  • Page 24: Wireless/Access Control Submenu

    NWTAP-100 user guide 4.5. Wireless/Access Control submenu MAC Restrict Mode : the following rules will be applied to the mac addresses listed in the “ MAC Addresses” field (in the format 00:02:00:5b:63:01) – Disabled : not used(default) – Allow : only listed MAC Addresses may establish link via WLAN –...

  • Page 25: Wireless/Advanced Submenu

    NWTAP-100 user guide 4.6. Wireless/Advanced submenu 54g™ Network Mode : WLAN operation mode is selected. – 11b Only : only 11b link is supported – 54g Only : supports only 54g™(Broadcom) and 11g link – Max Compatibility : provides maximum compatibility by supporting all 54g™, 11b &...

  • Page 26: Tools

    NWTAP-100 user guide 4.7. TOOLS This menu is displayed when the “ TOOLS” menu is selected on the top right corner. – Password : web access ID and password maybe used. – Factory Default : reset to factory default. –...

  • Page 27: Gateway

    NWTAP-100 user guide 4.8. Gateway Contains all the settings related to the gateway features. This menu is enabled only when NAT is enabled via the “operations mode” menu. The functions below are intuitive from the explanations on the web page.

  • Page 28: Telnet Based Configuration

    NWTAP-100 user guide 4.9. Telnet based configuration 4.9.1. Telnet access Similar to the webui, Telnet access can be made locally through the wireless link C:\>telnet 192.168.100.1 64623 Or remotely through, C:\>telnet [IP address of wireless tap] 64623 After telnet is established, please type ID and password as shown below.
  • Page 29 NWTAP-100 user guide Command format is similar to the CISCO network equipment interface. “Tab” shortcut key can be used and “?” will display information related to commands. Netwave Proprietary and Confidential...
  • Page 30 NWTAP-100 user guide 4.9.2. Telnet commands Commonly used menus related to the wireless interface include the following, interface wireless shutdown : will disable WLAN interface wireless startup : will enable WLAN interface wireless ssid xxx : change the SSID name of WLAN to xxx...

  • Page 31: Snmp Based Configuration

    NWTAP-100 user guide 4.10. SNMP based configuration 4.11. Software upgrade Netwave Proprietary and Confidential...

  • Page 32: Troubleshooting

    NWTAP-100 user guide Troubleshooting 5.1. Troubleshooting for various symptoms Section Symptom Action Cable modem 1) Cable modem not online 1) Verify cable modem MAC is 2) Webui accessible via wireless registered on server 2) Verify that the DOCSIS signal level into the cable modem is at an appropriate level.

  • Page 33: Disassembling The Wireless Tap

    NWTAP-100 user guide 5.2. Disassembling the wireless tap It is recommended not to disassemble the wireless tap in any circumstances. The following material is provided just as a reference. 5.2.1. Unscrew the four hexagonal screws that can be found on the subscriber port side.
  • Page 34 NWTAP-100 user guide Fig. 12 Splitter circuit for the bottom tap ports Fig. 13 Cable modem with wireless lan Fig. 14 Top cover with connection to the trunk cable Netwave Proprietary and Confidential...
  • Page 35 NWTAP-100 user guide 5.2.2. Removing the RF and AC coupling board The RF and AC coupling board is situated on the top of the main body an it can disassembled by removing the eight screws that hold this board. After the screws are removed, the board can be removed by lifting the area where the RF connector is located using a flat head screw driver.
  • Page 36 NWTAP-100 user guide Fig. 17 AC cable disconnection Fig. 18 Plug-in coupler module can be removed by hand 5.2.3. Removing the modem board The modem board with the wireless lan daughterboard can be removed by unscrewing the four screws holding the board to the housing.
  • Page 37 NWTAP-100 user guide Fig. 19 Modem board unscrewed Netwave Proprietary and Confidential...

  • Page 38: Appendix

    NWTAP-100 user guide Appendix 6.1. Ordering table 6.2. NWTAP-100 specifications 6.2.1. Cable Modem I T E M D o w n s t r e a m ( R e c e i ve r ) U p s t r e a m ( T r a n s m i t t e r )
  • Page 39 NWTAP-100 user guide Operating 2.4GHz~2.497GHz (14 channels for Japan) Frequencies/Operating 2.4GHz~2.472GHz (13 channels for Europe, Korea) Channels 2.4GHz~2.462GHz (11 channels for North America) 20 dBm maximum (>17dBm output from antenna RF Output Power connector) Antenna diversity Antenna diversity is supported...
  • Page 40 NWTAP-100 user guide 6.2.4. TAP Item Unit Spec Comments Frequency range 5.75 ~ 870MHz Tap off value Down 8-tap insertion Down loss 16-tap Down 8-tap Min reverse isolation Down 16-tap < Tap off variation ±1.5 > Subscriber port coupling >...

  • Page 41: Fcc Warning

    This device requires a professional installation by someone trained in CATV HFC networks as well as WiFi equipment. The NWTAP-100 is mounted on strands that are located high on poles. The input and output connectors need to be connected to 12C coaxial cables which feed CATV signals as well as AC powering.

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