4G630 3G/4G Wireless N300 Router User Manual-2

 

Knowledge Center 802.11 Mode: Select a correct network mode according to your wireless clients. 11b mode: This network mode delivers wireless speed up to 11Mbps and is only compatible with 11b wireless clients. 11g mode: This network mode delivers wireless speed up to 54Mbps and is only compatible with 11g wireless clients. 11b/g mixed mode: This network mode delivers wireless speed up to 54Mbps and is compatible with 11b/g wireless clients. 11b/g/n mixed mode: This network mode delivers wireless speed up to 300Mbps and is compatible with 11b/g/n wireless clients. BSSID: This is the MAC address of the device's wireless interface. SSID Broadcast: This option allows you to have your wireless network name

(SSID) publicly broadcast or if you choose to disable it, the SSID will be hidden. Channel Bandwidth: Select a proper channel bandwidth to enhance wireless performance. This option is available only in 802.11b/g/n mixed mode. Maximum wireless speed in the channel bandwidth of 20/40 is 2 times in 20. Extension Channel: This is used to ensure N speeds for 802.11n devices on the network. This option is available only in 11b/g/n mixed mode with the channel bandwidth of 20 /40. 3.2 Security Click Wireless -> Security to enter the configuration screen. Here you can define a security key to secure your wireless network against unauthorized accesses. 41 III Features & Configurations | Tenda Configuration Procedures:

Configure Security Mode, Cipher Type and Security Key. Click Save to save your settings. Knowledge Center WEP: W EP is intended to provide data confidentiality comparable to that of a traditional wired network. Open: If selected, wireless speed can reach up to 54Mbps. Shared: If selected, wireless speed can reach up to 54Mbps. Default Key: Select a key to be effective for the current W EP encryption. For example, if you select Key 2, wireless clients must join your wireless network using this Key 2. WPA-PSK: W PA personal supports AES and TKIP cipher types . WPA2-PSK: W PA2 personal supports AES, TKIP and TKIP+AES cipher types. Mixed WPA/WPA2-PSK: If selected, both W PA-PSK and W PA2-PSK secured wireless clients can join your wireless network. AES: If selected, wireless speed can reach up to 300Mbps. 42 III Features & Configurations | Tenda TKIP: If selected, wireless speed can reach up to 54Mbps. TKIP&AES: If selected, both AES and TKIP secured wireless clients can join your wireless network. Key Renewal Interval: Enter a valid time period for the key to be changed. WPS W i-Fi Protected Setup makes i t easy for home users who know little of wireless security to establish a home network, as well as to add new devices to an existing network without entering long passphrases or configuring complicated settings. Simply enter a PIN code or press the hardware W PS button and a secure wireless connection is established. Knowledge Center WPS: Select Enable/Disable to enable/disable the W PS encryption. WPS Type: Select PBC (Push-Button Configuration) or PIN. Reset OOB: If clicked, the W PS LED will turn off and the security function will be disabled automatically. The W PS server on the router enters idle mode and will not respond to any clients W PS connection request. 43 III Features & Configurations | Tenda Device PIN: Displays the devices PIN code. Start PIN: If you enter the clients PIN code on the router, clicking this button starts the PIN connection. Operation Instructions:

PBC: If you press the hardware W PS button on the device for 1 second, the W PS LED will blink for about 2 minutes, indicating that the PBC encryption method is successfully enabled. During this time, an authentication routine can be performed between your device and a W PS/PBC capable wireless client. Simply enable the W PS/PBC on the client wireless device. If it passes the authentication, the wireless client device connects to your device and the W PS LED turns off. Repeat the steps above if you want to add more wireless client devices to your device. PIN: To use this option, you must know the PIN code from the wireless client and enter it in the corresponding field on your device while using the same PIN code on the client side for this connection. Note To use the W PS encryption, the wireless client device must also be W PS-capable. The WPS becomes unavailable if you select any of the following option:

Open, Shared, WPA2-PSK plus TKIP, and Mixed WPA/WPA2-PSK plus TKIP. 3.3 Access Control Specify a list of devices to " Allow" or "Deny" a connection to your wireless network via the devices MAC Addresses. Click Wireless -> Access Control to enter the configuration screen. Three options are available: Disable, Deny and Allow . A. If you want to allow all wireless clients to join your wireless network, select Disable. 44 III Features & Configurations | Tenda B. If you want to allow ONLY the specified wireless clients to join your wireless network, select Allow . C. If you want to disallow ONLY the specified wireless clients to join your wireless network, select Deny. Wireless Access Control Application Example:

To only allow your own notebook at the MAC address of C8:3A:35:CC:34:25 to join your wireless network :

Select Allow . Enter C8:3A:35:CC:34:25. Click Add to add the MAC address to the MAC address list. Click Save to save your settings. Tip If you don't want to configure the complex wireless security settings and want to disallow others to join your wirele ss network, you can configure a wireless access control rule to allow only your own wireless device. 3.4 Connection Status Click Wireless -> Connection Status. Here you can see a list of wireless 45 III Features & Configurations | Tenda devices (if any) connected to the device. Tip The Bandwidth here refers to the channel bandwidth instead of wireless connection rate. You can know whether there are unauthorized accesses to your wireless network by viewing th is connection status list . 46 III Features & Configurations | Tenda 4 Advanced Applications This section includes the following:

To remotely access the device via a domain name or access a server on a LAN PC, see 4.1 DDNS Settings. To let an Internet user access your LAN PC without any restriction, see 4.2 DMZ Host. To automatically map the ports between WAN and LAN, see 4.3 UPNP. To enable the remote W eb management feature, see 4.4 Remote Web Management. To regulate bandwidth, see 4.5 Bandwidth Control (Available only in 4G600). To restrict your LAN PCs to access certain services on the Internet via their IP addresses, see 4.6 Client Filter (Available only in 4G600) . 4.1 DDNS Settings Dynamic DNS or DDNS is a term used for the updating in real time of Internet Domain Name System (DNS) name servers. We use a numeric IP address allocated by Internet Service Provider (ISP) to connect to the Internet; the address may either be stable ("static"), or may change from one session on the Internet to the next ("dynamic"). However, a numeric address is inconvenient to remember; an address which changes unpredictably makes connection impossible. The DDNS provider allocates a static hos t name to the user;

whenever the user is allocated a new IP address this is communicated to the DDNS provider by software running on a computer or network device at that address; the provider distributes the association between the host name and the address to the Internet's DNS servers so that they may resolve DNS queries. Thus, uninterrupted access to devices and services whose numeric IP address may change is maintained. Click Advanced -> DDNS Settings to enter the screen below. 47 III Features & Configurations | Tenda Tip To use the DDNS feature, you need to have an account with one of the DDNS Service Providers in the drop-down list first. DDNS Application Example:

If your ISP g ives you a dynamic (changing) public IP address, you want to access your router remotely ( see 4.4 Remote Web Management ) but you cannot predict what your router's WAN IP address will be, and the address can change frequently. In this case, you can use a commercial Dynamic DNS service. It lets you register your domain to their IP address and forwards traffic directed at your domain to your frequently changing IP address. If your DDNS service provider provides you with a DDNS account (User Name:

tenda, Password: 123456, Domain Name: tenda.dyndns.org) and you want to use the PC at the IP address of 218.88.93.33 to remotely access this device on the port number of 8090. Then follow the steps below:

DDNS Settings: Check the Enable DDNS box. DDNS Service Provider: Select your DDNS service provider from the drop-down list. Here in this example, select dyndns.org. User Name: Enter the DDNS user name you have registered with your 48 III Features & Configurations | Tenda DDNS service provider. Here in this example, enter tenda. Password: Enter the DDNS Password you have registered with your DDNS service provider. Here in this exampl e, enter 123456. Domain Name: Enter the DDNS domain name you have registered with your DDNS service provider. Here in this example, enter tenda.dyndns.org . Click Save to save your settings. Click Remote Web Management , enable the Remote Web Management feature, enter 8090 in the Port field, 218.88.93.33 in the IP Address field and then click Save to save your settings. Now, you can access your device from the Internet by typing your devices domain name into your browser s address or location field on yo ur PC 49 III Features & Configurations | Tenda

(218.88.93.33) followed by a colon (:) and the remote management port number. Here in this example, enter http://tenda.dyndns.org:8090 . 4.2 DMZ Host The DMZ (De-Militarized Zone) function disables the firewall on the router for one device for a speci al purpose service such as Internet gaming or video conferencing applications that are not compatible with NAT (Network Address Translation). Click Advanced -> DMZ Host to enter the screen below. Note DMZ host poses a security risk. A computer configur ed as the DMZ host loses much of the protection of the firewall and becomes vulnerable to attacks from external networks. Hackers may use the DMZ host computer to attack other computers on your network. Configuration Procedures:

DMZ Host IP: The IP address of the device for which the router s firewall 50 III Features & Configurations | Tenda will be disabled. Be sure to statically set the IP address of the device that serves as a DMZ host for this function to be consistent. Enable: Check to enable the DMZ host functionality. Click Save to save your settings. Tip Security softwares such as anti-virus softwares and OS built-in firewall, etc. may affect the DMZ host feature. Disable them if the DMZ host fails. 4.3 UPNP The Universal Plug and Play (UPnP) feature allows network devices, such as computers from the Internet, to access resources on local host or devices as needed. UPnP-enabled devices can be discovered automatically by the UPnP service application on the LAN. If you use applications such as multiplayer gaming, peer-to-peer connections , real-time communications such as instant messaging, or remote assistance (a feature in W indows XP), you may need to enable Universal Plug and Play (UPnP) for better experience. Click Advanced -> UPnP to enter the configuration screen. The UPnP feature is enabled by default. 51 III Features & Configurations | Tenda 4.4 Remote Web Management The Remote Web Management allows the device to be configured and managed remotely from the Internet via a Web browser. Click Advanced -> Remote Web Management to enter the configuration screen. Tip For better security, c onfigure a port number (between 1025 and 65535) as the remote Web management interface, do not use the number of any common service port (1 ~1024). Make sure your WAN IP address (Internet IP address) is a public IP address. Private IP addr esses are not routed on the Internet. It is unsafe to make your router remotely accessible to all PCs on external network. For the purpose of security, we suggest that you only enter the IP address of the PC that is to be used to remotely manage your device. Remote Web Management Application Example:

To access your device (WAN IP address: 102.33.66.88) at your home from the 52 III Features & Configurations | Tenda PC (218.88.93.33) at your office via the port number of 8090, follow the steps below:

Enable: Check to enable the remote Web management feature. Port: Enter 8090. IP Address: Specify the IP address for remote managemen t. Here in this example, enter 218.88.93.33 . Click Save to save your settings. Type "http://102.33.66.88:8090" into your browser s address or location field and you can remotely access the router from your home. Knowledge Center IP Address: Here you can specify the IP address for remote management ( If set to "0.0.0.0", the device becomes remotely accessible to all the PCs on the Internet or other external networks). Port: This is the management port to be open to outside access. The default setting is 8080. This can be changed. 4.5 Bandwidth Control (Available only in 4G600) If there are multiple PCs behind your device competing for limited bandwidth resource, then you c an use this feature to specify a reasonable amount of 53 III Features & Configurations | Tenda bandwidth for each such PC, so that no one will be over stuffed or starved to death. Note that this feature is unavailable in 3G/4G Router Mode. Bandwidth Control Application Example:

You share a 4M-broadband service with your neighbor (at the IP address of 192.168.0.125). He always downloads a large volume of data from the Internet, which sharply frustrates your Internet surfing experience; you can use this feature to set limits for the volume of Inte rnet traffic he can get. For example, you can equally split the bandwidth, so your neighbor can only use up to 2M Internet traffic and you can smoothly enjoy 2M. Configuration Procedures:

Bandwidth Control : Check the Enable box to enable the feature. IP Address: Enter the last number of the IP address. Here in this example, enter 125 in both boxes. Upload Limit: Set a limit to regulate the uplink bandwidth of PC(s) on the LAN. Here in this example, enter 32 in both boxes. Download Limit: Set a limit to regulate the downlink bandwidth of PC(s) on the LAN. Here in this example, enter 256 in both boxes. Enable: Check to enable the current rule. Add to List: Click to add the current rule to the rule list. Click Save to save your settings. 54 III Features & Configurations | Tenda Tip 1M=128KByte/s. The volume of uplink traffic/downlink traffic should not be larger than that allowed on your device's WAN (Internet) port. Consult your ISP, if you are not sure of the total volume of Internet traffic that you can have . The bandwidth for ADSL/DSL li ne usually refers to the download bandwidth. 4.6 Client Filter (Available only in 4G600) This section allows you to set the times specific clients can or cannot access the Internet via the devices IP addresses and service port. Note that this feature is unavailable in 3G/4G Router Mode. 55 III Features & Configurations | Tenda Knowledge Center Default: The default policy for the client filter. For the packets that do not match the set rule, the default rule is applied. Filter Mode: Specify a filter mode for the rule. Deny: Disallow the packets that match the set rule to pass the router. For other packets that do not match the set rule, the default policy is applied. Allow: Allow the packets that match the set rule to pass the router. For other packets that do not match the set rule, the defau lt policy is applied. Client Filter Application Example:

To prohibit PCs within the IP address range of 192.168. 0.110--192.168.0.111 from accessing Web pages during the time period of 8:00~18:00 from Monday to Friday, follow the steps below:

Click Add to add a filter rule. Filter Mode: Select Deny. Description: Briefly describe the current rule. This field is optional. IP: Enter 192.168.0.110 as the starting IP address and 192.168.0.111 as the ending IP address. 56 III Features & Configurations | Tenda WAN Port Range: Enter a service port number. Here in this example, enter 80 in both boxes. HTTP port 80 is the standard protocol for Web servers. Type: Select a protocol for the traffic. If you are unsure, select Both. Time: Specify a time period for the current rule to take effect. Here in this example, select 8:00~18:00. Day: Select a day, or several days of the week for the current rule to take effect. Here in this example, select Mon, Tue, Wed, Thur and Fri. Click Save to save your settings. Enable Client Filter: Check to enable the client fil ter feature. Select Allow from the Default drop-down list and then click Save. 57 III Features & Configurations | Tenda Tip The valid service port number range is 1 ~ 65535. If you have not set up the system time for this device, click Tools -> Time &

Date to configure correct time and date settings for the rule(s) to be effective. 58 III Features & Configurations | Tenda 5 Tools To configure system time, see 5.1 Time & Date. To upgrade firmware, see 5.2 Firmware Upgrade. To backup or restore configurations, see 5.3 Backup & Restore . To restore factory default settings, see 5.4 Restore to Factory Default . To change login password, see 5.5 Change Password. To view logs, see 5.6 Logs. To restart device, see 5.7 Reboot. 5.1 Time & Date Click Tools -> Time & Date to enter the configuration screen. Tip Configured time and date settings will be lost if the device gets disconnected from power supply. However, it will b e updated automatically when the device reconnects to the Internet. To activate time-based features (e.g. Client Filter), the time and date settings should be set correctly first, either manually or automatically. A. To synchronize with Internet time serve rs:

Internet Time Server: Check to enable the feature (If enabled, time and date will be updated automatically from the Internet ). Sync Interval: Specify a time interval for periodic update of time and date information from the Internet. Time Zone: Select your current time zone. Click Save to save your settings. Go to the Status screen to make sure the system time is correctly updated. 59 III Features & Configurations | Tenda Note In the Universal Repeater Mode, the Internet Time Server - Enable feature is not available, so you can only set the time and date manually. B. To set time and date manually/synchronize with your PC:

Internet Time Server: Uncheck to disable the feature. Specify the time and date manually or click Copy Local Time to automatically copy your PC's time to the device. Click Save to save your settings. 60 III Features & Configurations | Tenda Go to the Status screen to make sure the system time is correctly updated. 5.2 Firmware Upgrade Click Tools -> Firmware Upgrade to enter the configuration screen. Firmware upgrade is released periodically to improve the functionality of your device and also to add new features. If you run into a problem with a specific feature of th e device, log on to our Website (http://www.tendacn.com) to download the latest firmware to update your device. Note Before you upgrade the firmware, make sure you are having a correct firmware. A wrong firmware may damage the device. It is advisable that you upgrade the device's firmware over a wired connection. DO NOT disconnect the power connection to the device when the upgrade is in process otherwise the router may be permanently damaged. Configuration Procedures:

61 III Features & Configurations | Tenda Click Browse. Select the firmware file you want to use and click Open. Click Upgrade. Click OK on the appearing screen and wait for it to complete. W hen upgrade is complete d, check the Current System Version field. It should display the firmware you load. 5.3 Backup & Restore Once you have configured the device the way you want it, you can save these settings to a configuration file on y our local hard drive that can later be imported to your device in case that the device is restored to factory default settings. Click Tools -> Backup & Restore to enter the configuration screen. Tip It is advisable to i nclude the file name suffix of ".cf g" to avoid problems when renaming the file name. To backup configurations:

Click Backup. 62 III Features & Configurations | Tenda Click OK on the appearing window. Click Save on the File Download window. Select a local hard drive to save the file and click Save. 63 III Features & Configurations | Tenda To restore configurations:

Click Browse. Select the configuration file that is saved previously to your local hard drive and click Open. 64 III Features & Configurations | Tenda Click the Restore button to reset your device to previous settings. 5.4 Restore to Factory Default Click Tools -> Restore to Factory Default to enter the configuration screen. Here you can reset the device to factory default settings. Note If you enable this option, the device will be restored to factory default values. You will have to reconfigure Internet connection settings and wireless settings. Do not restore factory default settings unless the following happens:

You need to join a different network or unfortunately forget the login password. You cannot access the Internet and your ISP or our technical support asks 65 III Features & Configurations | Tenda you to reset the device. The factory default settings are listed below:

IP Address: 192.168.0.1 Subnet Mask: Enter 255.255.255.0. Password: admin 5.5 Change Password Click Tools -> Change Password to enter the configuration screen. It is strongly recommended that you chang e the factory default login password. Otherwise, anyone in your network can access this utility to change your settings. Tip The default login password is "admin". A valid password must only include letters, numbers or underscore. 66 III Features & Configurations | Tenda Configuration Proced ures:

Old Password: Enter the current login password. New Password: Input a new password. Confirm New Password: Re-enter the new password for confirmation. Click Save to save your settings. 5.6 Logs Click Tools -> Logs to enter the configuration screen. Here you can view the history of the devices actions upon system startup. 67 III Features & Configurations | Tenda 5.7 Reboot W hen a certain feature does not take effect or the device is malfunctioning , try rebooting the device. 68 III Features & Configurations | Tenda IV Appendix 1 Configure Your PC Windows 7 Step 1: Click the icon on the right bottom corner of your desktop. Step 2: Click Open Network and Sharing Center. Tip If you cannot find the icon on the right bottom corner of your desktop, follow steps below: Click Start -> Control Panel -> Network and Internet -> Network and Sharing Center. 69 IV Appendix | Tenda Step 3: Click Local Area Connection -> Properties. Step 4: Find and double click Internet Protocol Version 4(TCP/IPv4). 70 IV Appendix | Tenda Step 5: Select Obtain an IP address automatically and Obtain DNS server address automatically and click OK. Step 6: Click OK on the Local Area Connection Properties window (see Step 4 for the screenshot). Windows XP Step 1: Right click My Network Places on your desktop and select Properties. 71 IV Appendix | Tenda Step 2: Right click Local Area Connection and select Properties. Step 3: Scroll down to find and double click Internet Protocol (TCP/IP). 72 IV Appendix | Tenda Step 4: Select Obtain an IP address automatically and Obtain DNS server address automatically and click OK. Step 5: Click OK on the Local Area Connection Properties window (see Step 3 for the screenshot). 73 IV Appendix | Tenda 2 Join Your Wireless Network Tip To join your wireless network, the PC you use must have an installed wireless network adapter. If not, install one. The devices SSID is "Tenda_XXXXXX" by default (where "XXXXXX" is the last six characters of its MAC address). You can find the MAC address and/or SSID on the label attached to the devices bottom). Windows 7 Step 1: Click or from the right bottom of your desktop. Step 2: Double click the name of the wireless network (SSID) you wish to join and then follow onscreen instructions. When Connected appears next to the selected wireless network (SSID), you have successfully connected to it. 74 IV Appendix | Tenda Windows XP Step 1: Right click My Network Places and select Properties. Step 2: Right click Wireless Network Connection and select View Available Wireless Networks. 75 IV Appendix | Tenda Step 3: Double click the name of the wireless network (SSID) you wish to join and then follow onscreen instructions. When Connected appears next to the selected wireless network (SSID), you have successfully connected to it. 76 IV Appendix | Tenda 77 IV Appendix | Tenda 3 FAQs This section provides solutions to problems that may occur during installation and operation of the device. Read the following if you are running into problems. If your problem is not covered here, please feel free to go to www.tendacn.com to find a solution or email your problems to:

support@tenda.com.cn or support02@tenda.com.cn. We will be more than happy to help you out as soon as possible. 1. Q: I cannot access the device's management interface. What should I do?

Make sure the PWR (power) LED on the device is on and the SYS LED blinks normally. Make sure all cables are correctly connected and the corresponding LAN LED on the device is on. Verify that your PC's TCP/IP settings are configured correctly. If you select the

"Use the following IP address" option, set your PC's IP address to any IP address between 192.168.0.2~192.168.0.254. Or you can select the "Obtain an IP address automatically" option. Delete your browser cache and cookies or use a new browser. Make sure you enter 192.168.0.1 in your browsers address bar. Open your browser and click Tools -> Internet Options -> Connections -> LAN Settings, uncheck the Use a proxy server for your LAN option. Press the WPS/Reset button for over 6 seconds to restore your device to factory default settings. Then log in to your device again. 2. Q: I changed the login password and unfortunately forget it. What should I do?

Press the WPS/Reset button for over 6 seconds to restore your device to factory default settings. 3. Q: My computer shows an IP address conflict error when it connects to the 78 IV Appendix | Tenda device. What should I do?

Make sure there are no other DHCP servers on your LAN or other DHCP servers are disabled. Make sure the device's LAN IP is not used by other devices on your LAN. The device's default LAN IP address is 192.168.0.1. Make sure the statically assigned IP addresses to the PC(s) on LAN are not used by others device(s). 4. Q: I cannot access email and the Internet/Some Websites do not open. What should I do?

This problem mainly happens to users who use the PPPoE or Dynamic IP Internet connection type. You need to change the MTU size. Try changing the MTU to 1450 or 1400. If this does not help, gradually reduce the MTU from the maximum value until the problem disappears. For details, see WAN MTU Setup. 79 IV Appendix | Tenda 4 Remove Wireless Network from Your PC When you change your wireless network (For example, change your device's SSID or security key), the old wireless settings on your PC will not be updated accordingly, you must manually remove them from your PC; otherwise, you may not be able to wirelessly connect to the device. This section explains how to remove a wireless network from your PC. Windows 7 Right-click the Network icon and select Properties. Select Manage Wireless Networks. Select the wireless network and click Remove network. 80 IV Appendix | Tenda Windows XP Right-click My Network Places and select Properties. Right click Wireless Network Connection and then select Properties. 81 IV Appendix | Tenda Click Wireless Networks, select the wireless network name under Preferred networks and then click the Remove button. 82 IV Appendix | Tenda 5 Safety and Emission Statement CE Mark Warning This is a Class B product. In a domestic environment, this product may cause radio interference, in which case the user may be required to take adequate measures. This device complies with EU 1999/5/EC. NOTE: (1) The manufacturer is not responsible for any radio or TV interference caused by unauthorized modifications to this equipment. (2) To avoid unnecessary radiation interference, it is recommended to use a shielded RJ-45 cable. FCC Statement This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one of the following measures:

- Reorient or relocate the receiving antenna. 83 IV Appendix | Tenda

-

Increase the separation between the equipment and receiver.

- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

- Consult the dealer or an experienced radio/TV technician for help. FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. The manufacturer is not responsible for any radio or TV interference caused by unauthorized modifications to this equipment. Radiation Exposure Statement This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. NOTE: (1) The manufacturer is not responsible for any radio or TV interference caused by unauthorized modifications to this equipment. (2) To avoid unnecessary radiation interference, it is recommended to use a shielded RJ-45 cable. NCC Notice 84 IV Appendix | Tenda