Cambium Networks cnWave 5G Fixed Operation And Troubleshooting Manual
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Cambium Networks cnWave 5G Fixed Operation And Troubleshooting Manual

Cambium Networks cnWave 5G Fixed Operation And Troubleshooting Manual

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OPERATION AND
TROUBLESHOOTING GUIDE
cnWave™ 5G Fixed
System Release 3.0

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Summary of Contents for Cambium Networks cnWave 5G Fixed

  • Page 1 OPERATION AND TROUBLESHOOTING GUIDE cnWave™ 5G Fixed System Release 3.0...
  • Page 2 Cambium recommends reviewing the Cambium Networks website for the latest changes and updates to products. Cambium does not assume any liability arising out of the application or use of any product, software, or circuit described herein;...

  • Page 3: Table Of Contents

    Contents Contents About This Guide Purpose Cross references Feedback Warnings, cautions, and notes Warnings Cautions Notes Important regulatory information Application software (firmware) Ethernet networking skills Lightning protection Specific expertise and training for professional installers Legal and Open-Source Software statements Problems and warranty Reporting problems Repair and service Hardware warranty...
  • Page 4 Accessing the B1000 UI Connecting the CPE to power Accessing the C100 UI Establishing a link between a BTS and a CPE Mandatory parameters required for establishing a BTS-CPE link Read-only parameters required for monitoring the link Operational Procedures for BTS Modifying BTS system parameters –...
  • Page 5 Troubleshooting the power cable (black) Troubleshooting the BTS data cable (green) Troubleshooting BTS using Resistors Table How to hardware reset a BTS to factory default? How to hardware reset a CPE to factory default? Appendix: Acronyms and Abbreviations Cambium Networks Contents...

  • Page 6: About This Guide

    Documents specific to the cnWave™ 5G Fixed platform of products are intended to instruct and assist personnel in the operation, installation, and maintenance of the Point-to-Multi-Point (PMP) equipment (Cambium Networks) and ancillary devices of cnWave™ 5G Fixed platform of products. It is recommended that all personnel engaged in such activities be properly trained.

  • Page 7: Cautions

    Cautions Cautions precede instructions and are used when there is a possibility of damage to systems, software, or individual items of equipment within a system. However, this damage presents no danger to personnel. A caution has the following format: Caution Caution text and consequence for not following the instructions in the caution.
  • Page 8 Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Canada specific information Caution This device complies with ISEDC ’s license-exempt RSSs. Operation is subject to the following two conditions: This device may not cause interference. This device must accept any interference, including interference that may cause undesired operation of the device.

  • Page 9: Application Software (Firmware)

    EU Declaration of Conformity Hereby, Cambium Networks declares that the Cambium Networks cnWave™ 5G Fixed Series of Wireless Ethernet Bridge complies with the essential requirements and other relevant provisions of Directive 2014/53/EU. The declaration of conformity may be consulted at https://www.cambiumnetworks.com/.

  • Page 10: Repair And Service

    Cambium’s standard hardware warranty is for one (1) year from date of shipment from Cambium Networks or a Cambium distributor. Cambium Networks warrants that hardware will conform to the relevant published specifications and will be free from material defects in material and workmanship under normal use and service.

  • Page 11: In Non-Eu Countries

    Disposal of surplus packaging Do not dispose of surplus packaging in landfill sites. In the EU, it is the individual recipient’s responsibility to ensure that packaging materials are collected and recycled according to the requirements of EU environmental law. In non-EU countries In non-EU countries, dispose of Cambium equipment and all surplus packaging in accordance with national and regional regulations.

  • Page 12: Troubleshooting Cnwave™ 5G Fixed Platform Of Products

    5G Fixed Planning and Installation Guide cnWave™ 5G Fixed Configuration Guide These guides are available on Cambium Networks Support site. Troubleshooting in a lab environment This section describes the key steps required to troubleshoot a BTS, a CPE, and a BTS-CPE link.

  • Page 13: Configuring The Management Pc

    In a lab environment, you must ensure that the following configurations are in place: Configuring the management PC Connecting the BTS to power Accessing the B1000 UI Connecting the CPE to power Accessing the C100 UI Establishing a link between a BTS and a CPE Mandatory parameters required for establishing a BTS-CPE link Read-only parameters required for monitoring the link Configuring the management PC...
  • Page 14 The Ethernet Properties dialog box Figure 1: By default, the Networking tab is selected. 4. Select Internet Protocol Version 4 (TCP/IPv4) from the available list of connections (as shown in Figure 5. Click Properties. The Internet Protocol Version 4 (TCP/IPv4) Properties dialog box appears, as shown in Figure Troubleshooting cnWave™...
  • Page 15 The Internet Protocol Version 4 Properties dialog box Figure 2: 6. In the Use the following IP address section, type an appropriate IP address in the IP address text box. Example: 169.254.1.1 If you are using 169.254.1.1 as the default address, you must avoid using 169.254.0.0 and 169.254.1.1 IP addresses.

  • Page 16: Connecting The Bts To Power

    Checking the management PC configuration Figure 3: Connecting the BTS to power When the management PC is successfully configured with the correct IP address required to communicate with the BTS, you must perform the following tasks: 1. Connect the power and data cables to the BTS (as described here). 2.
  • Page 17 To connect the BTS to power, perform the following steps: 1. Connect the input side of the 30W DC Power injector to the BTS, as shown in Figure Connecting the power cable to the BTS Figure 4: 2. Connect an Ethernet cable (data) between the network port of the PC and the MAIN of the BTS. Figure 5 shows the BTS connected with the power and data cables.

  • Page 18: Accessing The B1000 Ui

    BTS Interface connections Figure 5: 3. After connecting the BTS to power, ensure that you can communicate with the BTS by running a continuous PING session at a command prompt. Example: Run a command prompt and type Ping -t 169.254.1.1. If the PING is successful, you can access the login page of B1000 (BTS) UI using the http://169.254.1.1 URL.
  • Page 19 The Sign In page for B1000 UI (BTS) Figure 6: 2. Type an appropriate username and password. Default username: admin Default password: admin 3. Click Sign In. The Profile page appears. You can use this page to change the password and set your preferences. For more information about the Profile page, refer to the cnWave™...

  • Page 20: Connecting The Cpe To Power

    The main B1000 dashboard page Figure 7: When the B1000 dashboard page appears successfully, you can check default parameters and configure any parameters required for the operation of the BTS. For detailed information about each B1000 UI configuration pages and associated parameters, refer to the cnWave™...

  • Page 21: Accessing The C100 Ui

    Connecting the CPE to power using a PoE Figure 8: 3. Connect the input side of the 30W DC Power injector to the AC power line. 4. Ensure that you can communicate with the CPE by running a continuous PING session at a command prompt.

  • Page 22: Establishing A Link Between A Bts And A Cpe

    2. Type an appropriate username and password. Default username: admin Default password: admin 3. Click Sign In. The main C100 dashboard page appears, as shown in Figure Figure 10: The main C100 dashboard page When the C100 dashboard page appears successfully, you can check default parameters and configure any other parameters required for the operation of the CPE.
  • Page 23 To establish a link between a BTS and a CPE, perform the following steps: 1. Use a pole (ideally) and attach a B1000 BTS using the tilt bracket. For details on how to assemble the tilt brackets, refer to the cnWave™ 5G Fixed Planning & Installation Guide (available on Cambium Networks Support site).
  • Page 24 Figure 12: The BTS network-related parameters You must note down the radio-related parameters for the BTS. When you navigate to System > Radio page from the main B1000 dashboard page, following radio-related parameters are visible as shown in Figure Frequency - Take a note of the operating frequency to be used for the lab test. Any frequency in the 26-28 GHz range can be used.
  • Page 25 Figure 13: The BTS Radio parameters Authentication - When you navigate to the System > Authentication page from the main B1000 dashboard page, the Mode parameter is visible. To test a BTS-CPE link for the first time or to troubleshoot an existing link, it is recommended to disable the Radius authentication by choosing the None option (as shown in Figure 14).
  • Page 26 Figure 15: The BTS Synchronisation parameters 4. Power up the CPE. Ideally, it is recommended to place the CPE upright (without the dish) at a reasonable distance (3-5 meters at least) from the BTS. 5. Use a PC to access the web interface, as described in Connecting the CPE to power Accessing the C100 UI...
  • Page 27 The CPE radio parameters Figure 16: 7. Check that a link has been established between the BTS and the CPE. The easiest way is to view the B1000 (BTS) dashboard, which shows the status and number of CPEs connected and registered with BTS (as shown in Figure 17 Figure 18, respectively).
  • Page 28 Checking the BTS-CPE connection status using the C100 dashboard Figure 18: 8. If the link fails to come up even after following all the above-mentioned steps from 1 to 7, check some of the parameters in the Radio page in the main C100 (CPE) dashboard (as shown in Figure 19).
  • Page 29 Consider the following details: Rx Power – if the value shown is -120 dBm (default), then the CPE is not able to find the BTS (wrong frequency or obstacle in the path). Ensure the path between the BTS and the CPE is free of any obstacles.

  • Page 30: Mandatory Parameters Required For Establishing A Bts-Cpe Link

    Figure 21: EVM versus MCS modulation Modes (56 MHz) Transmitted RACH Count – The Uplink Random Access Channel (RACH) is the uplink channel used by the CPE to initiate a connection request to the BTS. If all is well, the BTS must respond to enable the CPE transmission that results in generating a RACH number.
  • Page 31 BTS and/or CPE that can be used to troubleshoot if a link cannot be established between a BTS and a CPE. This is a minimal and non-exhaustive list before looking in-depth at the event logs and contacting Cambium Networks Support site for a resolution.

  • Page 32: Operational Procedures For Bts

    Operational Procedures for BTS This section explains some operational procedures for a BTS in the field. Example: Replacing a faulty BTS, changing some key parameters, or performing a software upgrade. The operation procedures help one to understand the time required for reestablishing a connectivity service in the field. This section covers the following operational scenarios: Modifying BTS system parameters –...

  • Page 33: Modifying Bts Network Parameters - No Reboot Required

    2. On the left navigation column, click the System icon ( The System page appears with multiple tabs, as shown in Figure 3. Modify the values of System Name, System Location, and System Contact, as shown in Figure The System page - B1000 UI Figure 22: 4.

  • Page 34: Modifying Bts User Accounts - No Reboot Required

    BTS Network parameters in the System page Figure 23: 3. Click Save, as shown in Figure The changes are effective, immediately, with no impact on the operation of the system. However, any change made to the Network Configuration-specific parameters affects the management of the system.

  • Page 35: Modifying The Bts Operation Frequency - No Reboot Required

    User account parameters in the Management page Figure 24: The changes are effective, immediately, with no impact on the operation of the system. However, any change made to the user accounts and SNMP relationships affects the SNMP management and the security of the system (to some extent). The changes are effective on logging back into the system if you are using the web interface.

  • Page 36: Changing The Bts Polarization - No Reboot Required

    for some CPEs to reconnect depending on the range and the number of frequencies in their respective scan lists. Changing the BTS polarization - No reboot required The Systems page in the B1000 UI allows you to change the antenna polarisation settings. Perform the following steps to modify the parameter specific to polarisation: 1.

  • Page 37: Enabling Or Disabling The Radius Server - No Reboot Required

    Enabling or disabling the RADIUS server – No reboot required The Authentication page in the B1000 UI provides options to configure the RADIUS server for CPEs. Perform the following steps to modify the parameter specific to the RADIUS server: 1. From the main B1000 dashboard page, navigate to System > Authentication. The Authentication page appears.

  • Page 38: Testing Mu Mimo Performance - No Reboot Required

    Testing MU MIMO performance - No reboot required Multi-user multi-input multi-output (MU MIMO) is used to multiply the capacity of a wireless connection with no need for additional spectrum. If you have deployed MU MIMO at your site, you can test its performance in a lab environment using one of the following methods: Web user interface (UI) of BTS Linux setup - iPerf server...
  • Page 39 Using multiple IMSIs or IP addresses (of CPEs), you must run the test for the required duration (in seconds). Figure 28 is an example of the link capacity test. For the 112 MHz bandwidth, you can see a maximum of 300 Mbps, which is the maximum downlink performance as if there was a single CPE. In other words, the group size for MU MIMO is 1.

  • Page 40: Linux Setup - Iperf Server

    Link capacity test with MUMIMO enabled Figure 29: For more information about each parameter in the Link Capacity Test page, refer to the cnWave™ 5G Fixed Configuration Guide . Linux setup - iPerf server Testing the MUMIMO performance on a Linux setup using the iPerf server is an alternative method. Perform the following steps to test the MUMIMO performance in a lab environment: 1.
  • Page 41 Running the iperf flood traffic scripts Figure 30: 3. Run the following command for each stream. iperf3 –c 172.16.$(VLAN).1 –t 1000 –i 2 As an output, each stream creates a log file, as shown in Figure 31 Figure 4. Inspect the traffic log on the BTS to view the number of grouping-size during the tests. Figure 31 Figure 32 are the sample results (examples) of max grouping size (4) and...

  • Page 42: Updating A Bts Firmware - Reboot Required

    Example of an output - the traffic log for 56 MHz Figure 31: Figure 32: Example of the output - the traffic log for 112 MHz Updating a BTS firmware - Reboot required The Tools page in the B1000 UI allows you to update firmware (software). Perform the following steps to update the firmware on the Tools page: 1.
  • Page 43 The Firmware page Figure 33: 2. Select the Enable Reboot check box in the Reboot section of the Firmware page. This action indicates that the BTS performs a reboot after the installation of a new firmware. 3. Click Choose File to select a new firmware either from a local PC or a remote server. 4.

  • Page 44: Changing The Bandwidth - Reboot Required

    Changing the bandwidth - Reboot required The Radio page in the B1000 UI allows you to modify or change the bandwidth (in MHz) of the radio channel spacing. Perform the following steps to modify the parameter specific to bandwidth: 1. From the main B1000 dashboard page, navigate to System > Radio. The Radio page appears.

  • Page 45: Resetting Bts To Factory Default Configuration - Reboot Required

    When the Enable Reboot check box is selected, the BTS reboots. All the registered CPEs get disconnected for at least two minutes before they reconnect and register back with the BTS. Some CPEs may take a longer period to reconnect depending on the range. Resetting BTS to factory default configuration - Reboot required The Configuration tab on the Tools page of the B1000 UI allows you to reset the BTS to factory default...
  • Page 46 1. From the main B1000 dashboard page, navigate to Tools > Configuration. The Configuration page appears. 2. Deselect the Local Management Access check box in the Do Not Reset parameter. This action implies that all the BTS configurations are reset to factory defaults including the local management IP address.

  • Page 47: Resetting Cpe To Factory Default Configuration - Reboot Required

    Note You must also reconfigure the local management IP address to use SNMP and manage the system. Resetting CPE to factory default configuration - Reboot required The Configuration tab on the Tools page of the C100 UI allows you to reset the CPE to factory default settings.

  • Page 48: Reset Cpe To Factory Defaults Including The Ip Address

    When the reconfiguration of parameters is done, the CPE must reconnect and register back with the BTS. This operation may take a few minutes to complete. Note The Radius server must be running for the CPE to get its entire configuration. Reset CPE to factory defaults including the IP address To reset the CPE to factory defaults including the IP address, perform the following steps: 1.

  • Page 49: Testing Mir - No Reboot Required

    (and/or status) in a JSON file. Perform the following steps to configure the Import feature: 1. From the main B1000 dashboard page, navigate to Tools > Configuration. The Configuration page appears. For information on how to log on to the B1000 UI, refer to the Accessing the B1000 UI section.
  • Page 50 To meet the huge bandwidth demands, Cambium Networks introduced the MIR functionality by considering the Burst Bucket concept (as shown in Figure 40). The purpose is to set limits on how much data can be sent to and received from a CPE.

  • Page 51: Modifying The Mir Parameters On The Radius Server

    For MIR testing, you must modify the following parameters in the authorize file (a Radius Server file): ULBR: The uplink bit rate or sustained uplink rate (in kbps) at which each CPE has registered with the BTS. The BTS is replenished with credits for transmission. ULBL: The uplink bit limit or uplink burst allocation (in kbits).
  • Page 52 Selecting the PC Port to log in to the Radius Server C4000 Figure 41: 4. Click OK. 5. Open the Tera Term vi Editor screen and navigate to Setup > Serial Port, as shown in Figure Figure 42: Selecting the serial port The Serial port setup and connection screen appears.
  • Page 53 Configuring serial port settings Figure 43: 7. Touch any one of the keys on your keyboard. The login screen of Radius Server C4000 appears. You must use the following credentials to log on (as shown in Figure 44): Username: labs Password: phn The log in screen of Radius Server C400 Figure 44:...
  • Page 54 9. In the authorize file, locate and modify the MIR parameters for the CPE that is under test. The value of MIR parameters (ULBR, ULBL, DLBR, and DLBL) is 0 (zero), which indicates that there are no limits on the CPE data traffic size. Figure 45: MIR Parameters set with no limits For the test purpose, you can set (for instance) ULBL and ULBR to 20000 kbps (maximum 20...

  • Page 55: Running The Mir Test

    a. Stop the Radius Server by running the following command: $ sudo systemctl stop freeradius b. Restart the Radius Server by running the following command: $ sudo systemctl start freeradius c. Reboot the CPE for which the MIR parameters are modified in the authorize file. Either repower the CPE manually or go to the C100 UI and press the Reboot button (located at the top right corner of the UI).

  • Page 56: Testing Cir - No Reboot Required

    In addition to MIR, Cambium Networks provides a CIR per priority level. The CIR priority levels support in delivering up to an allotted amount of data, provided capacity exists, while considering the priority constraints.

  • Page 57: Modifying The Cir Parameters On The Radius Server

    Medium Priority (802.1p bits 4 and 3) Low Priority (802.1p bits 2 and 1) Consider the following example for the CIR priority levels: In a sector with no other traffic and which is capable of sustaining an excess of 40 Mbps, apply UDP traffic to all priorities.
  • Page 58 process. To modify the CIR-specific parameters, perform the following steps: 1. Log on to the Radius Server C4000 using a serial cable that is connected between the Console Port and a USB port on the PC. 2. To set the serial port and access the login page of the Radius Server C4000, follow the steps from described in the Modifying the MIR parameters on the Radius Server section.

  • Page 59: Running The Cir Test

    a. Stop the Radius Server by running the following command: $ sudo systemctl stop freeradius b. Restart the Radius Server by running the following command: $ sudo systemctl start freeradius c. Reboot the CPE for which the MIR parameters are modified in the authorize file. Either repower the CPE manually or go to the C100 UI and press the Reboot button (located at the top right corner of the UI).
  • Page 60 An example of CIR with four priority levels Figure 50: 6. Run the tests and record the results. Verify that the CPE throughputs are as expected for each bandwidth (all sample results summarized in Table 3 for reference). The test can be repeated with more than one CPE, if needed. Table 3: A sample of eighth Scenario Results –...

  • Page 61: General Troubleshooting Procedures

    Hence, Cambium Networks recommends the following measures for each site: Identify the troubleshooting tools that are available at your site (such as a protocol analyzer).

  • Page 62: What Is The General Fault Isolation Process

    Site-specific troubleshooting processes Escalation procedures Capture baseline data into the log from the sources, as listed here. This section covers the following troubleshooting topics: What is the general fault isolation process? How to isolate the problem? What are the secondary steps to isolate the problem? Troubleshooting a loss of connectivity Troubleshooting a loss of Ethernet connectivity Troubleshooting when CPE fails to register with a BTS...

  • Page 63: How To Isolate The Problem

    How to isolate the problem? section), perform the following tasks: Check the knowledge base information (available on the Cambium Networks portal) to find whether other network operators have encountered a similar problem. Proceed to any appropriate set of diagnostic steps that are organized, as follows:...

  • Page 65: Troubleshooting A Loss Of Ethernet Connectivity

    Access the Dashboard UI page of each device (radio). Verify that the polarity matches the BTS polarity or the polarity is set to Auto Detect in the Verify that the setting for symmetry matches that of the other radio. Access the Radio tab on the Dashboard page of B1000 or C100 UI. Verify that the radio frequency carrier setting of the BTS is checked in the Frequency Scan Selection List for the CPE in the C100 UI.

  • Page 66: Troubleshooting When Cpe Fails To Register With A Bts

    4. If the Ethernet cable connects the radio to a hub, switch, or router, verify that the cable is pinned out as a crossover cable. 5. Verify that the Ethernet port, to which the cable connects the radio, is set to auto-negotiate speed. 6.
  • Page 67 Figure 51: An example of the BTS cabling As shown in Figure 51, multiple things can go wrong with the cables or the surge suppressors before suspecting the BTS. The following sections provide some steps on how to isolate the issue before troubleshooting the BTS and replace any faulty cables, faulty surge suppressor, or ultimately a faulty BTS: Troubleshooting the power cable (black) Power cable connections...

  • Page 68: Troubleshooting The Power Cable (Black)

    Troubleshooting BTS using Resistors Table Pre-power testing Troubleshooting the power cable (black) This issue must be determined rapidly as you must verify that the BTS is being powered up correctly. Sometimes, multiple things can go wrong including the cables. Therefore, it is recommended to prepare all the cables before the installation.
  • Page 69 Figure 52: Typical DC installation Figure 52, there are two types of connection: Type A – At the cnWave™ 5G Fixed BTS and at the DC-LPUs: 4-wire cable to 4-pin plug, as described and illustrated in cnWave™ 5G Fixed BTS radio and DC LPU connections (type Type B –...
  • Page 70 Figure Figure 54, two examples are shown using a terminal block and using crimps. Cambium Networks do not supply this connector. The installer must use any similar suitable means that fits the site installation. Cable to PSU wiring, terminal block (left), crimps (right)
  • Page 71 Table 5: Details of pin number, wire color, and DC polarity 450m Wire color PSU Wire color DC Polarity Notes Brown Positive (+ve) Green Positive (+ve) White Black Negative (-ve) Negative wires are closest to the B1000 plug latch. Yellow Negative (-ve) Note 1.
  • Page 72 Test Meter positive Meter negative Approximate Notes number value White (pin 3) Brown (pin 1) 0.7 V typical Diode test range (note) Yellow (pin 4) Green (pin 2) White+Yellow Brown+Green (pins 3+4) (pins 1+2) Note The cnWave™ 5G Fixed B1000 radio includes a reverse-polarity protection diode wire across the supply.
  • Page 73 Note Ensure that the 1-2 and 3-4 resistances are within 10% of each other by multiplying the lower resistance by 1.1. If the other resistance is greater than this, the test has failed. Figure 55, we show some simple steps to diagnose any part of the data cable and surge suppressors that may be faulty.

  • Page 74: Troubleshooting The Bts Data Cable (Green)

    Testing the Cable (6) It is difficult to test the Cable (6) using the resistance measurement as it is connected directly to the AC/DC power block. It is recommended to replace the cable if the test fails, as indicated in Figure Troubleshooting the BTS data cable (green) Figure 56...
  • Page 75 Figure 57: BTS Data cable troubleshooting - Part 2 General Troubleshooting Procedures...

  • Page 76: Troubleshooting Bts Using Resistors Table

    Testing BTS connectivity using Ping If a customer cannot access the web interface of the BTS or fails to ping it, then it is likely that there is an issue with the cables. This is a test that is recommended during initial installation to ensure that the BTS can be powered and started to operate.
  • Page 77 Resistances for each pair must be within 1 ohm of each other. Check the resistance between pins 1&3 and 4&7 at the RJ45. Check against columns 3 and 4 in Table Ensure that there is greater than 100K ohms between pins 1&8 for all cable lengths. Ensure that there is greater than 100K ohms between pins 1&8 for all cable lengths.
  • Page 78 Figure 59: BTS Data cable - Resistance checking General Troubleshooting Procedures...

  • Page 79: How To Hardware Reset A Bts To Factory Default

    How to hardware reset a BTS to factory default? If the BTS fails in a field (site) and if it is not possible to access the BTS using the web interface due to loss of IP address or other reasons, then you must execute a process to recover the BTS. The process offers several options on which part of the configuration can be kept or the entire BTS can be reset to factory defaults.

  • Page 80: How To Hardware Reset A Cpe To Factory Default

    Parameter Description Note: This is an option that you can use in case of loss of the IP address. Reset Configuration Except IP Resets the BTS configuration parameters except for the Management IP address. This is an option that can be used to reconfigure a BTS from scratch, but it will not reset the IP address.
  • Page 81 Note The CPE also gets its IP address from the Radius Server. Therefore, the IP address must be available in the Radius Server. To reset the CPE to factory defaults, perform the following steps: 1. Execute a short power cycle of the CPE. At the power source, you must do a simultaneous power OFF and power ON.
  • Page 82 Parameter Description Default Mode - Keep IP Management CPE Reboot information Boot - Normal An option, which is equivalent to a normal booting process and keeps all the configurations unchanged. TFTP Recovery Server IP Indicates the IP address of a TFTP server that must be installed and executed for the CPE.

  • Page 83: Appendix: Acronyms And Abbreviations

    Appendix: Acronyms and Abbreviations Table 11 lists acronyms and abbreviations used in this guide. Table 11: List of acronyms and abbreviations Term Definition 5G New Radio (From Release 15, the 3GPP consortium refers to the air 5G NR interface as 5G New Radio) Base Transceiver Station C-RNTI Call-Radio Network Temporary Identifier...
  • Page 84 Term Definition PDSCH Physical Downlink Shared Channel PDCCH Physical Downlink Control Channel Point-to-MultiPoint Proof of Concept Power over Ethernet Pulse Per Second Primary Synchronization Signal Power Supply Unit PUSCH Physical Uplink Shared Channel PUCCH Physical Uplink Control Channel Quadrature Amplitude Modulation Quality of Service QPSK Quadrature Phase Shift Keying...

  • Page 85: Cambium Networks

    Devon, TQ13 7UP United Kingdom www.cambiumnetworks.com Cambium Networks and the stylized circular logo are trademarks of Cambium Networks, Ltd. All other trademarks are the property of their respective owners. © Copyright 2022 Cambium Networks, Ltd. All rights reserved. Cambium Networks...

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