DragonWave LT5GT Microwave Outdoor Unit User Manual Harmony Lite 5GHz
DragonWave Inc. Microwave Outdoor Unit Harmony Lite 5GHz
Contents
- 1. Harmony Lite 5GHz_Installation Guide
- 2. Harmony Lite 5GHz_User Manual
Harmony Lite 5GHz_User Manual
Harmony Lite, R1.0 Operation and Maintenance Guide Revision 2, updated in May, 2014 dr af Document Number: PM-000003-01-EN Notice This document contains DragonWave proprietary information. Use, disclosure, copying or distribution of any part of the information contained herein, beyond that for which it was originally furnished, requires the written permission of DragonWave Inc. The information in this document is subject to change without notice and relates only to the product defined in the introduction of this document. DragonWave intends that information contained herein is, to the best of its knowledge, correct and accurate. However, any/all liabilities associated with the use or accuracy of the information contained herein must be defined in a separate agreement between DragonWave and the customer/user. dr af Copyright © DragonWave Inc. 2014. All rights reserved. Table of Contents 1 Preface .................................................................................................... 9 1.1 History of changes ........................................................................................................... 9 1.2 Scope of the document .................................................................................................... 9 1.3 Intended audience ............................................................................................................ 9 1.4 Document structure .......................................................................................................... 9 af 2 Commissioning .................................................................................... 11 2.1 Before commissioning .................................................................................................... 11 dr 2.2 Commission steps .......................................................................................................... 11 2.2.1 Logging in ............................................................................................................................ 11 2.2.2 Setting the management IP ................................................................................................. 12 2.2.3 Setting the management VLAN ........................................................................................... 13 2.2.4 Setting the radio parameters ............................................................................................... 14 3 System configuration ........................................................................... 19 3.1 System home ................................................................................................................. 19 3.2 System inventory ............................................................................................................ 19 3.3 Software inventory ......................................................................................................... 20 3.4 Software management ................................................................................................... 21 3.5 Configuration management ............................................................................................ 21 3.6 P+E output ..................................................................................................................... 22 3.7 Licensing .........................................................................................................................22 3.8 SNTP ..............................................................................................................................23 3.9 Synchronization ..............................................................................................................23 4 Wireless radio configuration ............................................................... 25 4.1 Wireless radio #1 configuration ......................................................................................25 4.2 Received Signal Strength Indication ...............................................................................25 4.3 Modulation and ACM ......................................................................................................26 4.4 Tx power and Adaptive Transmit Power Control (ATPC) ...............................................27 5 Ethernet configuration ......................................................................... 29 5.1 Ports ...............................................................................................................................29 af 5.2 Speed .............................................................................................................................29 5.3 VLAN management ........................................................................................................30 dr 5.4 QoS scheduler ................................................................................................................30 5.5 Traffic criteria ..................................................................................................................31 5.6 IP priority .........................................................................................................................31 5.7 VLAN PRI priority ............................................................................................................32 5.8 Port priority .....................................................................................................................32 5.9 Aging time .......................................................................................................................33 5.10 Static Unicast FDB ........................................................................................................33 5.11 All FDB ..........................................................................................................................33 6 Management ......................................................................................... 35 6.1 IP ....................................................................................................................................35 6.2 Management VLAN ........................................................................................................35 6.3 SNMP .............................................................................................................................36 6.4 Trap ................................................................................................................................ 36 6.5 Event log ........................................................................................................................ 36 6.6 Account log .................................................................................................................... 37 7 Alarms ................................................................................................... 39 7.1 Active alarms .................................................................................................................. 39 7.2 History alarms ................................................................................................................ 39 8 Performance ......................................................................................... 41 8.1 Ethernet .......................................................................................................................... 41 8.2 Wireless ......................................................................................................................... 41 af 9 Diagnostics ........................................................................................... 43 9.1 Link status ...................................................................................................................... 43 dr 9.2 Link status trace ............................................................................................................. 43 9.3 System running log ........................................................................................................ 43 10 About ................................................................................................... 45 t af dr List of Tables TABLE 1. History of changes ..................................................................................................................... 9 TABLE 2. Document structure .................................................................................................................... 9 TABLE 3. Login parameters ..................................................................................................................... 12 TABLE 4. System home ........................................................................................................................... 12 TABLE 5. Management IP ........................................................................................................................ 13 TABLE 6. Management VLAN .................................................................................................................. 14 af TABLE 7. Wireless parameters ................................................................................................................ 16 TABLE 8. Configuration summary ............................................................................................................ 17 dr TABLE 9. P+E output ............................................................................................................................... 22 TABLE 10. SNTP ...................................................................................................................................... 23 TABLE 11. ACM ....................................................................................................................................... 27 TABLE 12. TPC ........................................................................................................................................ 27 TABLE 13. Ethernet ports ......................................................................................................................... 29 TABLE 14. Ethernet port speed configuration .......................................................................................... 29 TABLE 15. VLAN configuration ................................................................................................................ 30 TABLE 16. Aging time .............................................................................................................................. 33 TABLE 17. Management VLAN ................................................................................................................ 35 t af dr Preface 1 Preface 1.1 History of changes The history of changes is shown in the following table: TABLE 1. History of changes Revision Updates Date 1st revision. January, 2014 All across the document, the full name of the product is changed to Harmony Lite. May, 2014 1.2 Scope of the document This document provides the technical guide for commissioning and operating the software of Harmony Lite system, Lite Link Viewer. INFO dr 1.3 Intended audience af This document only concerns Harmony Lite system release 1.0 (Lite, R1.0 in short) without specific statements in the context. This document is prepared for the use of radio network planners and technicians who are responsible for the system operation and maintenance. WARNING! PERSONS HANDLING THIS EQUIPMENT MAY BE EXPOSED TO HAZARDS WHICH COULD RESULT IN PHYSICAL INJURY! IT IS THEREFORE MANDATORY TO CAREFULLY READ AND UNDERSTAND THIS DOCUMENT. 1.4 Document structure The document is comprised of the following chapters. TABLE 2. Document structure Chapter Title Subject Chapter 1 Preface Provides an introduction on who and how to use this document. Chapter 2 Commissioning Provides the guidance to do the initial commission. Chapter 3 System configuration Provides the guidance to make system configurations. Chapter 4 Wireless configuration Provides the guidance to make wireless configurations. Chapter 5 Ethernet configuration Provides the guidance to make Ethernet configurations. Chapter 6 Management Provides the guidance to make management configurations. Preface TABLE 2. Document structure Chapter Chapter 7 Title Subject Alarms Provides the information about alarm lists. Performance Provides the guidance to make performance configurations. Diagnostics Provides the guidance to make diagnostics configurations. Chapter 10 About Provides the information about the link view. dr af Chapter 8 Chapter 9 10 Commissioning 2 Commissioning 2.1 Before commissioning Before Lite system become operational, initial configuration steps need to be carried out first. And the Commissioning wizard is recommended to be executed prior to the hardware installation on site. The Lite system can be accessed by the Web Browser on a PC, such as Google Chrome (28.0 or higher), Firefox (26.0 or higher), IE (9.0 or higher). If Firefox or IE is to be used, Adobe Flash Player plug-in has to be installed first. (To download Adobe Flash Player, go to website http:// get.adobe.com/cn/flashplayer/.) Before logging into the Lite Web interface, the network configuration of the PC must be set as Figure 1. We suggest setting the PC IP address to 192.168.255.1 and subnet mask 255.255.255.248. This IP address is used to access Lite when the management PC is directly connected to Lite system. By default, the private IP address of Lite is 192.168.255.3 and the subnet mask 255.255.255.248. dr af FIGURE 1. PC network configuration 2.2 Commission steps 2.2.1 Logging in Steps 1. Use the Web Browser to access the private IP address of Lite. FIGURE 2. Step 1 11 Commissioning 2. Enter User Name and User Password, click Login. The home page of Link Viewer appears. TABLE 3. Login parameters User Name energetic User Password wireless readwrite Rwrite readonly readonly dr af FIGURE 3. Link Viewer TABLE 4. System home Parameter Description System Name Configure the system name to identify the NE. System Location Configure the system location for easy management. System Contact Configure the contact information for easy management. System Up Time Show the system start up time. It is read only. System Description Configure the system description for easy management. System ObjectID It is used to SNMP. The value is 1.3.6.1.4.1.7262.4.1. System Temperature Show the current temperature. It is read only. 2.2.2 Setting the management IP Go to Configuration > Management > IP tab (see Figure 4). The public management IP address and local management IP address are to be set. INFO Don’t use IP address from 192.168.254.96 ~ 192.168.254.99. These 4 IP addresses are reserved for internal use. 12 Commissioning FIGURE 4. Management IP TABLE 5. Management IP Parameter Description Public IP Address Public Gateway Private IP (Eth 1) Local IP Management Local Management IP Mask MAC 1 Private IP is used for commissioning. dr Private IP Mask (Eth 1) af Public IP Mask Public IP is used to access Lite over Management VLAN (Tagged, typically using a switch or other intranet connectivity). It is for in-band management. Local Management IP is used to access Lite locally over one of the Ethernet ports untagged, for example, from a PC running WebLCT. It is also for out-of-band management. Display the MAC addresses of Eth1, Eth2 and wireless port. MAC 2 MAC 3 Node Type This field is used in chain site configuration. When it is changed to Node with P+E output, the private IP would be automatically changed to 192.168.255.4, to avoid IP address conflict in the chain site. 2.2.3 Setting the management VLAN Go to Configuration > Management > Management VLAN tab (see Figure 5). 13 Commissioning FIGURE 5. Management VLAN TABLE 6. Management VLAN Parameter Description Management VLAN Configure the management VLAN ID for remote login. VLAN range from 51 ~ 4094. Default: 127. Management VLAN Priority Configure the management VLAN priority. Value from 0 ~ 7. Default: 6. Eth1 If the port is to be used as a part of the management VLAN, set to Yes. If no, it means this port is removed from the management VLAN. Eth2 Ath1(wireless1) Configure the engress and eggress rate limit for management VLAN. Value from 128Kbps ~ 2Mbps. Default: 1024Kbps. 2.2.4 Setting the radio parameters af Rate Limit dr This operation should be done from both the passive and control ends of the link and channel selections should match to ensure the link comes up when properly aligned. Before setting the radio parameters, ensure that the correct radio standard is licensed for the geographic location where the radio is to be installed. For example: FCC for USA or Canada, ETSI for Europe and Asia, etc. It is also important to verify that the correct maximum speed required is licensed, as per the link design specified for the radio in this location. Steps 1. Go to Setup > Commissioning tab (see Figure 6) and click Next Step. FIGURE 6. Step 1 2. 14 Input the license key and click Modify. Click Refresh to make sure of the configuration. Commissioning FIGURE 7. Step 2 INFO If changing from one radio standard to another, existing license must be cleared. Set up wireless parameters according to Table 7. dr 3. af Please contact DragonWave Customer Support if a new license needs to be entered to change the radio standard or geographic location setting. 15 Commissioning FIGURE 8. Step 3 TABLE 7. Wireless parameters Parameter Description Up to 32 characters, and both numbers and characters are supported. The link name of both Control Site and Passive Site should be the same. System Role Control Site or Passive Site. Link Name af One end of Lite should be configured as the Control Site, and the other end the Passive Site. V+H Stream supported. Bandwidth 40 MHz or 20MHz. Traffic Mode (Uplink/ Downlink) 50/50 Guard Interval 400 ns or 800 ns. dr Antenna Stream For 50/50, the uplink and downlink have the same bandwidth. If the maximum multi-path delay spreads more than 400 ns, we suggest to use 800 ns. Leaving the guard interval at 400 ns (the default) works in most applications. For installations where the link is over long stretches of water, or non-line of sight applications with lots of multi-path signals, selecting 800 ns guard interval can improve the performance. Wireless Limit Rate Rate limit on Wireless port. It will only take effect while the value is lower than the Wireless Throughput. Static Modulation If ACM is disabled, Lite will use Static Modulation as Tx side modulation. This is the modulation selected for this link and will not change unless ACM is enabled. Tx Power Tx power on each radio. Limited by EIRP. This rate limit is automatically assigned based on the modulation selected. 4. 16 Port In Configuration Summary page, set the Setup Frequency field according to Table 9. Commissioning FIGURE 9. Step 6 TABLE 8. Configuration summary Parameter Description Setup Frequency The setup frequency is the initial frequency to be used when the link is set up. af Check all the configurations in Figure 9 and click Save & Reboot so that Lite will restart and run under new configurations. dr 5. 17 dr af Commissioning 18 System configuration 3 System configuration 3.1 System home Go to the Home page to set the parameters. dr af FIGURE 10. System Home 3.2 System inventory Go to Configuration > System > System Inventory page. 19 System configuration 3.3 Software inventory dr af FIGURE 11. System inventory Go to Configuration > System > Software Inventory page. FIGURE 12. Software inventory 20 System configuration 3.4 Software management Steps 1. Go to Configuration > System > Software Management page. FIGURE 13. Software download management Click Upgrade App and go to the right folder path to open the target software. 3. Click Switch App Software, confirm the Next Run Software Bank is switched correctly. 4. Click Reboot System. After reboot, Lite would start up with the new software. dr af 2. 3.5 Configuration management Steps 1. Go to Configuration > System > Configuration Management page. FIGURE 14. Configuration backup & restore 2. Click Backup Configuration and click the Download link to download the backup configuration file. 3. Click Clear Configuration & Reboot, confirm to clear configuration and reboot. 4. Click Restore and go to the right folder path to open the target configuration file. 21 System configuration 3.6 P+E output Steps 1. Go to Configuration > System > P+E Output page. FIGURE 15. P+E output configuration TABLE9. P+E output Parameter PoE Configuration Go to Configuration > System > Licensing page. FIGURE 16. License 2. 22 af Steps Click Submit to apply the configuration. 3.7 Licensing 1. Enable or Disable. Default: Disable. dr 2. Description Click Modify License to make change on the license information. System configuration 3.8 SNTP Steps Go to Configuration > System > SNTP page. 1. FIGURE 17. SNTP TABLE10. SNTP Parameter Description It is used to get SNTP time from Time Server. Time Zone Offset Configure the NE time zone when Time Server is configured. Time Server IP af Values are from -12 ~ +13. Daylight Saving To set SNTP, fill out all the parameters and click Submit. dr 2. Configure the NE daylight saving when Time Server is configured. Value is Enabled or Disabled. 3.9 Synchronization Steps 1. Go to Configuration > System > Synchronization page. FIGURE 18. Synchronization 2. To set Synchronization, fill out all the parameters and click Submit. 23 dr af System configuration 24 Wireless radio configuration 4 Wireless radio configuration 4.1 Wireless radio #1 configuration Go to Configuration > Wireless Radio > Wireless page to see the Wireless Radio Configuration. dr af FIGURE 19. Wireless radio #1 configuration 4.2 Received Signal Strength Indication Go to Configuration > Wireless Radio > RSSI page to see the Received Signal Strength Indication. 25 Wireless radio configuration 4.3 Modulation and ACM dr af FIGURE 20. RSSI Go to Configuration > Wireless Radio > ACM page to set the modulation and ACM parameters. 26 Wireless radio configuration FIGURE 21. ACM TABLE 11. ACM Parameter Description Static MCS The Tx modulation when ACM is disabled. ACM Enabled Enabled or Disabled. Lowest TX MCS MCS range for Lite, when ACM is enabled. Highest TX MCS 4.4 Tx power and Adaptive Transmit Power Control (ATPC) dr af Adaptive Transmit Power Control (ATPC) allows a Lite system to adjust its transmit power to compensate for far end signal loss caused by changes in atmospheric conditions, e.g., heavy rain. ATPC maintains the RSSI at the ATPC threshold, which is system mode dependent, and adjusts the transmit power as necessary in order to maintain the ATPC threshold during fading conditions. Go to Configuration > Wireless Radio > TPC page. FIGURE 22. TPC TABLE 12. TPC Parameter Description ATPC Enabled Enabled or Disabled. Default: Disabled. Tx Power Config Set the Tx Power on each chain, it is limited by local regulations. 27 dr af Wireless radio configuration 28 Ethernet configuration 5 Ethernet configuration 5.1 Ports Go to Configuration > Ethernet > Port > Ports page to set the Ethernet Ports. FIGURE 23. Ethernet ports TABLE 13. Ethernet ports Parameter Description The MTU of Lite is a fixed value: 1522. Speed It shows the current speed of the port. Admin Status By default the Admin Status of all ports is up, only the Admin Status of Eth2 can be set to down. 5.2 Speed It displays the current port status which can be up or down. dr Operation Status af MTU Go to Configuration > Ethernet > Port > Speed page to set the Ethernet Port Speed Configuration. FIGURE 24. Ethernet port speed configuration TABLE 14. Ethernet port speed configuration Parameter Autoneg Description The autonegotiation is enabled by default. It can be configured to disabled. 29 Ethernet configuration TABLE 14. Ethernet port speed configuration Parameter Description Speed and Duplex Under the autoneg disabled status, speed and duplex of port can be configured, only 100Base-THD, 100Base-TFD and 1000Base-TFD can be supported. Speed and Duplex Status It displays the current status of Ethernet speed and duplex. 5.3 VLAN management Go to Configuration > Ethernet > VLAN > VLAN page to set the VLAN Configuration. FIGURE 25. VLAN configuration The VLAN 1 is a special VLAN used to forward untagged traffic and for local management, it is a permanent VLAN and cannot be deleted. It includes Eth1 and Wireless port by default. dr VLAN ID Description af Parameter TABLE 15. VLAN configuration The available values of VLAN ID are 51 ~ 4094, 2 ~50 are reserved by system. They are all tagged VLAN. The maximum number of VLANs is 48. To create a VLAN, select Create in the Action drop-down list and fill out all the parameters and click Submit. Similarly, a VLAN can be modified or deleted by selecting Modify or Delete in the Action drop-down list and click Submit. 5.4 QoS scheduler Go to Configuration > Ethernet > QoS > QoS page to set the QoS Scheduler. Three scheduling modes are supported: • Strict Priority • Weighted Round Robin (WRR)/Deficit Weighted Round Robin (DWRR) • Strict Priority + WRR/DWRR While the Strict Priority Queue Number is 8, it is SP mode. While the number is less than 8, it is SP + WRR or SP + DWRR two scheduler modes. The default scheduling mode is SP+WRR, 4 SP queue + 4 WRR queue, the weight for Q4-Q1 are 8:4:2:1. The Wireless Port Rate Limit will only take effect when its value is lower than the Wireless Throughput. 30 Ethernet configuration FIGURE 26. Quality of Service Configuration 5.5 Traffic criteria dr af Go to Configuration > Ethernet > QoS > Traffic Criteria page to set the Traffic Criteria. The Port and VLAN priority 802.1p are the default traffic criteria for tagged traffic and untagged traffic. And they cannot be disabled. The IPv4 DSCP can be enabled if it is necessary, and it is prior to other criteria if the DSCP-802.1p mapping was configured in the list. Default setting is with IPv4 DSCP criteria disabled with the exclusion of the VLAN priority 802.1p and Port criteria that is always enabled. FIGURE 27. Traffic Criteria 5.6 IP priority Go to Configuration > Ethernet > QoS > IP Priority page to set the IP Priority. Frames whose DiffServ or TC Priority does not belong to any entry of the IPv4 DSCP priority table and which are tagged will be processed using VLAN PRI 802.1p priority, or which are untagged will be processed using Port criteria. Up to 64 values (between 0 and 63) can be configured by NMS. 31 Ethernet configuration FIGURE 28. IP priority 5.7 VLAN PRI priority Go to Configuration > Ethernet > QoS > Vlan PRI Priority page to set the VLAN PRI Priority. When VLAN priority field criterion is enabled, it is possible to associate an output priority to each one of VLAN priority field values. Classification for single tagged frames (802.1Q compliant) is based on VLAN Priority. For untagged frame, the VLAN priority is set to 0. Classification for Q-in-Q frames (both 802.1ad compliant and proprietary formats) is based on outer VLAN Priority. The eight default priority values for the VLAN priority fields can be configured. dr af FIGURE 29. VLAN PRI priority 5.8 Port priority Go to Configuration > Ethernet > QoS > Port Priority page to set the Port Priority. Port priority field criterion is enabled by default, it cannot be disabled. It is used to address the untagged frames which are not IPv4 frames or IPv4 frames but not match the DSCP and 802.1p mapping in IPv4 DSCP criteria. For untagged frame, the VLAN priority is set to 0 by default. The value for Port Priority can be set in range of 0-7. FIGURE 30. Port priority 32 Ethernet configuration 5.9 Aging time Go to Configuration > Ethernet > FDB > Aging Time page to set the Ethernet Aging Time. FIGURE 31. Aging time TABLE 16. Aging time Parameter Description Aging Time The values of aging time are 0/10-1000000s. If 0 was configured, it means Lite does not learn MAC address. 5.10 Static Unicast FDB Go to Configuration > Ethernet > FDB > Static Unicast FDB page to set the Static Unicast FDB. 5.11 All FDB dr af FIGURE 32. Static Unicast FDB Go to Configuration > Ethernet > FDB > All FDB page to see all FDB. The management status in FDB means system reserved MAC address, they were used by internal port.The learnt status is dynamic MAC address. TTR is the remaining time to be removed from FDB list. For management status MAC address, it is always zero. 33 Ethernet configuration dr af FIGURE 33. All FDB 34 Management 6 Management 6.1 IP Go to Configuration > Management > IP page to set the Management IP. af 6.2 Management VLAN FIGURE 34. Management IP Go to Configuration > Management > Management VLAN page to set the Management VLAN. dr FIGURE 35. Management VLAN TABLE 17. Management VLAN Parameter Description Management VLAN Configure the management VLAN ID for remote login. Values are 51 ~ 4094. Default: 127. Management VLAN Priority Configure the management VLAN priority. Values are 0 ~ 7. Default: 6. Eth1 Configure which port is in management VLAN. Eth2 Ath1 (wireless1) Rate Limit It is engress and eggress rate limit for management VLAN. Values are 128Kbps ~ 2Mbps. Default: 1024Kbps. 35 Management 6.3 SNMP Go to Configuration > Management > SNMP page to change the User Name and Password. Default User Name is energetic, default Password is wireless. FIGURE 36. User management 6.4 Trap Go to Configuration > Management > Trap page to set the Trap Destination parameters. 6.5 Event log dr af FIGURE 37. Trap Go to Configuration > Management > Event Log page to see all the event logs. 36 Management FIGURE 38. Event log 6.6 Account log dr FIGURE 39. Account log af Go to Configuration > Management > Account Log page to see all the account logs. 37 dr af Management 38 Alarms 7 Alarms 7.1 Active alarms Go to Alarms > Active Alarms page to see the current alarm list. FIGURE 40. Active alarms 7.2 History alarms Go to Alarms > History Alarms page to see the history alarm list. dr af FIGURE 41. History alarms 39 dr af Alarms 40 Performance 8 Performance 8.1 Ethernet Go to Performance > Ethernet page to see the Ethernet measurement. FIGURE 42. Ethernet 8.2 Wireless Go to Performance > Wireless page to see the Wireless measurement. dr af FIGURE 43. Wireless 41 dr af Performance 42 Diagnostics 9 Diagnostics 9.1 Link status Go to Diagnostics > Link Status page to see the Wireless link status. FIGURE 44. Link status 9.2 Link status trace Go to Diagnostics > Link Status Trace page to see the link status trace. dr af FIGURE 45. Link status trace 9.3 System running log Go to Diagnostics > System Running Log page, click on “Download” to see the system running log. FIGURE 46. System running log 43 dr af Diagnostics 44 About 10 About Go to the About page to see the information about the Link Viewer release. dr af FIGURE 47. About Link Viewer 45 dr af About 46 Operating Channel Declaration Operating Channel List Channels for 20MHz Channel Bandwidth Channel Frequency Channel Frequency Channel Frequency 149 5745 MHz 153 5765 MHz 157 5785 MHz 161 5805 MHz 165 5825 MHz N/A N/A Channels for 40MHz Channel Bandwidth Channel Frequency Channel Frequency Channel Frequency 151 5755 MHz 159 5795 MHz N/A N/A Note: There is no weather radar frequency band (5600-5650MHz) for the Microwave Outdoor Unit. Declaration of Conformity for RF Exposure This microwave outdoor unit product has been found to be compliant to the requirements set forth in CFR 47Section 1.1307 addressing RF Exposure from radio frequency devices as defined in Evaluating Compliance with FCC Guidelines for Human Exposure to Radio Frequency Electromagnetic Fields. Antennas with less than 23.5 dBi gain should be located at a minimum of 39.03 cm in more from the body of all persons. Calculation Formula: Pd = (Pout*G)/(4*pi*r2) Where Pd = power density in mW/cm2 Pout = output power to antenna in mW G = gain of antenna in linear scale Pi = 3.1416 r = distance between observation point and center of the radiator in cm Pd is the limit of MPE, 1mW/cm². If we know the maximum gain of the antenna and the total power input to the antenna, through the calculation, we will know the distance r where the MPE limit is reached. 43 LITE, R1.0, Operation and Maintenance Guide, Issue 1 Federal Communications Commission (FCC) Interference Statement 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 generate, 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. 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. 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. 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. RF exposure warning This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment must be installed and operated in accordance with provided instructions and the antenna(s) used for this transmitter must be installed to provide a separation distance of at least 39.03 cm from all persons and must not be collocated or operating in conjunction with any other antenna or transmitter.
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