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Testing link end hardware

Chapter 8: Troubleshooting

8-10

phn-2510_002v000 (Mar 2012)

Table 52

Typical resistance values in PTP 250 ODU-PoE drop cable

Cable length
(ODU to PoE power supply)

Resistance (Ohms) between
pins 1&2, 3&6, 4&5 and 7&8

0 meters (0 feet)

1.3

10 meters (33 feet)

20 meters (65 feet)

30 meters (100 feet)

6.5

40 meters (130 feet)

50 meters (165 feet)

60 meters (200 feet)

70 meters (230 feet)

80 meters (260 feet)

90 meters (300 feet)

100 meters (330 feet)

18.5

Summary of Contents for PTP 250

Page 1: ...Cambium PTP 250 User Guide System Release 250 02 01 ...

Page 2: ...any copyrighted material of Cambium its licensors or the 3rd Party software supplied material contained in the Cambium products described in this document may not be copied reproduced reverse engineered distributed merged or modified in any manner without the express written permission of Cambium Furthermore the purchase of Cambium products shall not be deemed to grant either directly or by implic...

Page 3: ...dance with national regulations In the USA follow Section 810 of the National Electric Code ANSI NFPA No 70 1984 USA In Canada follow Section 54 of the Canadian Electrical Code These codes describe correct installation procedures for grounding the outdoor unit mast lead in wire and discharge unit size of grounding conductors and connection requirements for grounding electrodes Other regulations ma...

Page 4: ...before servicing Lightning protection unit LPU Do not remove the LPU printed circuit board when the LPU is connected to the power supply as high voltages are present Drop cable tester The drop cable tester must NEVER be used at the ODU end connected to power from the PoE power supply or PIDU It must only be used with a multimeter to test a cable with an ODU attached not a cable with a PoE power su...

Page 5: ...voidance In countries where radar systems are the primary band users the regulators have mandated special requirements to protect these systems from interference caused by unlicensed devices Unlicensed devices must detect and avoid co channel operation with radar systems The PTP 250 provides detect and avoid functionality for countries and frequency bands requiring protection for radar systems Ins...

Page 6: ...with FCC rules KDB 443999 Interim Plans to Approve UNII Devices Operating in the 5470 5725 MHz Band with Radar Detection and DFS Capabilities follow the instructions in Avoidance of weather radars USA only on page 2 5 Other variants of the PTP 250 are available for use in the rest of the world but these variants are not supplied to the USA or Canada except under strict controls when they are neede...

Page 7: ... exceed the EIRP limit when the appropriate values for antenna gain and feeder cable losses are entered into the GUI Ethernet networking skills The installer must have the ability to configure IP addressing on a PC and to set up and control products using a web browser interface Lightning protection To protect outdoor radio installations from the impact of lightning strikes the installer must be f...

Page 8: ...Safety and regulatory information VI phn 2510_002v000 Mar 2012 ...

Page 9: ... Purpose 1 2 Key features 1 2 Typical deployment 1 3 System components 1 3 Product variants 1 4 Outdoor unit ODU 1 5 ODU description 1 5 ODU interfaces 1 6 Connectorized ODU antenna interfaces 1 7 Mounting brackets 1 7 Network connection 1 7 Further reading on the ODU 1 8 Power over Ethernet injector PoE power supply 1 9 PoE power supply description 1 9 PoE power supply interfaces 1 10 Further rea...

Page 10: ...stomer network 1 22 Management network 1 23 Back to back links 1 23 Protocol model 1 24 Further reading on Ethernet bridging 1 25 System management 1 26 Management agent 1 26 Web server 1 26 Web pages 1 26 Link and node management modes 1 27 SNMP 1 27 Simple Network Time Protocol SNTP 1 27 Encryption 1 28 Firmware upgrade 1 28 Reset to factory defaults 1 29 Further reading on system management 1 2...

Page 11: ...eed for power surge protection 2 15 Standards 2 15 Lightning protection zones 2 16 General protection requirements 2 17 Protection requirements for a mast or tower installation 2 18 Protection requirements for a wall installation 2 20 Protection requirements on a high rise building 2 21 Data network planning 2 23 IP interface 2 23 Back to back links 2 23 Green Ethernet switches 2 23 Ordering compo...

Page 12: ...quipment specifications 4 2 ODU specifications 4 2 Power supply unit specifications 4 3 Wireless specifications 4 5 General wireless specifications 4 5 Data network specifications 4 7 Ethernet interfaces 4 7 Compliance with safety standards 4 8 Electrical safety compliance 4 8 Electromagnetic compatibility EMC compliance 4 8 Human exposure to radio frequency energy 4 9 Compliance with radio regula...

Page 13: ... 15 Assembling an RJ45 connector and gland 5 16 Installing and grounding the main drop cable 5 18 Connecting an RJ45 and gland to a unit 5 19 Disconnecting an RJ45 and gland from a unit 5 21 Making a drop cable ground point 5 22 Installing and grounding the drop cable at building entry 5 26 Installing the PoE power supply 5 28 Preparing for PoE power supply installation 5 28 Connecting the PoE pow...

Page 14: ...igning antennas 6 27 Starting up the units 6 27 Checking that the units are armed 6 27 Aligning antennas 6 28 Aligning separate antennas for spatial diversity 6 29 Monitoring received signal level 6 29 Disarming the units 6 31 Connecting link to the network 6 32 Reviewing system configuration attributes 6 32 Comparing actual to predicted performance 6 32 Connecting to the network 6 33 Saving the s...

Page 15: ...Resetting to default configuration no country reset 7 25 Resetting to default configuration with country reset 7 26 Recovering a lost IP address 7 28 Rebooting the unit 7 28 Chapter 8 Troubleshooting 8 1 Testing link end hardware 8 2 Checking the PoE power supply LEDs 8 2 No power detected 8 3 Incorrect voltage 8 3 Overload or short circuit 8 3 No device ODU detected 8 5 Device ODU detected 8 5 Te...

Page 16: ...ghtning protection on mast or tower 2 19 Figure 15 Grounding and lightning protection on wall 2 20 Figure 16 Grounding and lightning protection on building 2 21 Figure 17 Grounding and lightning protection inside high building 2 22 Figure 18 European Union certification on 5 4 GHz product label 4 14 Figure 19 FCC and IC certifications on product labels 4 16 Figure 20 European Union certification o...

Page 17: ...ge 6 34 Figure 42 Login page 7 2 Figure 43 Menu and System Summary page wireless link up 7 3 Figure 44 Management Mode control 7 4 Figure 45 Example of web page in link management mode 7 5 Figure 46 System Summary page 7 6 Figure 47 System Status page 7 7 Figure 48 Change Password page 7 12 Figure 49 Status warning triangle 7 13 Figure 50 System Statistics page 7 15 Figure 51 Channel Status page 7...

Page 18: ...4 Additional inventory for connectorized ODUs 2 29 Table 15 Allowed antennas for deployment in USA Canada 5 4 GHz 2 31 Table 16 Allowed antennas for deployment in USA Canada 5 8 GHz 2 31 Table 17 Alternative PTP 250 components 2 34 Table 18 Integrated ODU physical specifications 4 2 Table 19 Connectorized ODU physical specifications 4 2 Table 20 ODU environmental specifications 4 2 Table 21 Power ...

Page 19: ...s 7 6 Table 41 System Status Equipment attributes 7 8 Table 42 System Status LAN attributes 7 9 Table 43 System Status Wireless attributes 7 10 Table 44 Wireless Link Status attribute values 7 14 Table 45 Email alerts 7 14 Table 46 Data Port Counter attributes in the System Statistics page 7 16 Table 47 Management Port Counter attributes in the System Statistics page 7 16 Table 48 Wireless Port Co...

Page 20: ...List of Tables xii phn 2510_002v000 Mar 2012 ...

Page 21: ...quipment installation x System installation configuration monitoring and fault finding System designers should refer to the following chapters x Chapter 1 Product description x Chapter 2 Planning considerations x Chapter 3 Legal information x Chapter 4 Reference information Installers should refer to the following chapters x Chapter 5 Installation x Chapter 6 Configuration and alignment x Chapter ...

Page 22: ...ease 250 02 00 002v000 Mar 2012 System release 250 02 01 Contacting Cambium Networks Support website http www cambiumnetworks com support Main website http www cambiumnetworks com Sales enquiries solutions cambiumnetworks com Support enquiries support cambiumnetworks com Telephone number list http www cambiumnetworks com contact php Address Cambium Networks Limited Linhay Business Park Eastern Roa...

Page 23: ...re of the customer or anyone acting on the customer s behalf to abide by the instructions system parameters or recommendations made in this document Cross references References to external publications are shown in italics Other cross references emphasized in blue text in electronic versions are active links to the references This document is divided into numbered chapters that are divided into se...

Page 24: ...m the support website Warranty Cambium s standard hardware warranty is for one 1 year from date of shipment from Cambium or a Cambium distributor Cambium 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 Cambium shall within this time at its own option either repair or replace...

Page 25: ...PTP 250 User Guide Problems and warranty phn 2510_002v000 Mar 2012 5 Portions of Cambium equipment may be damaged from exposure to electrostatic discharge Use precautions to prevent damage ...

Page 26: ...nized security practices Security aspects to be considered are protecting the confidentiality integrity and availability of information and assets Assets include the ability to communicate information about the nature of the communications and information about the parties involved In certain instances Cambium makes specific recommendations regarding security practices however the implementation o...

Page 27: ...rning has the following format Warning text and consequence for not following the instructions in the warning 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 text and consequence for not followi...

Page 28: ...bium equipment European Union EU Directive 2002 96 EC Waste Electrical and Electronic Equipment WEEE Do not dispose of Cambium equipment in landfill sites In the EU Cambium in conjunction with a recycling partner ensures that equipment is collected and recycled according to the requirements of EU environmental law Disposal of surplus packaging Do not dispose of surplus packaging in landfill sites ...

Page 29: ...on page 1 5 describes the ODU and its interfaces x Power over Ethernet injector PoE power supply on page 1 9 describes the PoE power supply and its interfaces x Cabling and lightning protection on page 1 12 describes the cabling and lightning protection components of a PTP 250 installation x Wireless operation on page 1 16 describes how the PTP 250 wireless link is operated including modulation mo...

Page 30: ...tiple Output MIMO techniques x Wireless connections of up to 54 km 34 miles in near line of sight conditions x High link availability through the use of adaptive modulation techniques that dynamically reduce the data rate in severe or adverse conditions x High sensitivity antennas for improved signal recovery x A built in web server for advanced management capabilities including detailed radio sig...

Page 31: ...he Local Area Network LAN of two or more buildings as shown in Figure 1 Figure 1 Typical PTP 250 bridge deployment grounding not shown LPU Network equipment Building 2 ODU Mains supply CAT5e cable PoE Injector LPU Network equipment Building 1 ODU Mains supply CAT5e cable PoE Injector System components Each end of the link consists of x Outdoor Unit ODU An integrated or connectorized outdoor transc...

Page 32: ... GHz ETSI Band C o FCC IC 5 8 GHz FCC ISM band only At the time of writing January 2012 a 5 4 GHz and 5 8 GHz FCC IC variant is pending FCC approval When FCC approval is received an announcement will be made on the support website see Contacting Cambium Networks on page 2 x Integrated or Connectorized Both products are available in either Integrated with attached antenna or Connectorized without a...

Page 33: ...es ODU description The ODU is a self contained unit that houses both radio and networking electronics The ODU is supplied in two configurations integrated attached to its own flat plate antenna Figure 2 or connectorized without an antenna Figure 3 Figure 2 Integrated ODU front and rear views Figure 3 Connectorized ODU front and rear views ...

Page 34: ...ult radio conditions as described in When to install connectorized units on page 2 12 ODU interfaces The ODU interfaces are illustrated in Figure 4 and described in Table 1 Figure 4 ODU interfaces Table 1 ODU interface functions Interface Function Ground studs For grounding the ODU to the supporting structure The ground cable supplied with the ODU may be connected to either ground stud PoE RJ45 so...

Page 35: ...faces Mounting brackets The ODU is supplied with a bracket for mounting it to a pole of 50mm 2 to 75mm 3 in diameter The bracket allows for adjustment in both azimuth and elevation The bracket may be split to allow the pole mount section of the bracket to be mounted to the pole first This allows the installer to take the weight of the unit and secure it one handed with a single mounting bolt Netwo...

Page 36: ...U x Ordering components on page 2 24 lists the components required for PTP 250 installations including ODUs with Cambium part numbers x FCC and IC approved antennas on page 2 30 contains specifications of the antennas that may be used with connectorized ODUs x ODU specifications on page 4 2 contains specifications of the ODU such as dimensions weight and environmental requirements x Installing the...

Page 37: ...or the PTP 300 500 600 Series PIDU Do not use other power supply units as they may damage the PTP 250 For guidance on choosing the most suitable power supply unit refer to Power supply selection on page 2 6 PoE power supply description The Cambium High Power Gigabit PoE power supply is a single port Power over Ethernet injector combining low voltage DC with Ethernet data in a single cable connecti...

Page 38: ... has AC and PORT LEDs Table 2 PoE power supply interface functions Interface Function IEC Power socket at rear Mains power input 100 240 V AC DATA POWER OUT RJ45 socket for connecting CAT5e cable to ODU DATA IN RJ45 socket for connecting CAT5e cable to network Table 3 PoE power supply indicator LED functions LED PoE type 9001GR PoE type PD7001 AC n a Power supply detection PORT Power supply and de...

Page 39: ... 3 contains specifications of the PoE power supply and the PIDU such as dimensions weight environmental and electrical requirements x Installing the PoE power supply on page 5 28 describes how to install the PoE power supply connect it to the ODU and prepare the network cables x Connecting to the unit on page 6 3 describes how to connect the PoE power supply to a management PC to allow configurati...

Page 40: ...mize the risk of damage due to nearby lightning strikes To be fully effective these standard features require some additional equipment to be configured as part of the system installation The units are not designed to survive direct lightning strike For this reason they must not be installed in Zone A as defined in Lightning protection zones on page 2 16 Mounting in Zone A may put equipment struct...

Page 41: ...on There must be a continuous electrical connection between both screened connectors The connected network equipment must feature screened RJ45 connectors and must be connected to ground otherwise the PoE power supply will not be grounded and this may increase the levels of unwanted radiation from the ODU PoE power supply cables Cable grounding kits Drop cables must be grounded at the points speci...

Page 42: ...rotection Chapter 1 Product description 1 14 phn 2510_002v000 Mar 2012 Lightning protection units LPUs One LPU kit Figure 9 is required for each ODU drop cable The LPU is installed at the building entry point Figure 9 LPU kit ...

Page 43: ...ng protection on page 2 15 describes the grounding and lightning protection requirements of a PTP 250 installation x Ordering components on page 2 24 lists the components required for PTP 250 installations including cables connectors grounding kits and LPUs x Installing the drop cable and LPU on page 5 14 describes how to install the drop cable from the ODU to the LPU and PoE power supply and to p...

Page 44: ...ivity and can also be appropriate where the amount of free spectrum is limited Each channel is offset in center frequency from its neighboring channel by 20 MHz Spectrum management At system start up the spectrum management feature of the PTP 250 monitors the available wireless spectrum and directs both ends of the wireless link to operate on a channel with a minimum level of co channel and adjace...

Page 45: ...ically polarized and the other horizontally polarized The system also has the ability to adapt between two modes of operation x Dual Payload When the radio channel conditions allow the system will transmit two different and parallel data streams one on the vertical channel and one on the horizontal channel This doubles the capacity of the system x Single Payload As the radio channel becomes more c...

Page 46: ...vice monitoring which looks for impulsive interference on the operating channel If impulsive interference is detected spectrum management will mark the current operating channel as having detected radar unavailable channel and initiate a change to an available channel The previous operating channel will remain in the unavailable state for 30 minutes after the impulsive interference pulse was detec...

Page 47: ...lability check before transmitting again on the channel x The slave device is also required to perform Channel Availability Check CAC measurements before responding to a master transmission but this requirement only applies after the slave has detected a radar signal on the channel Country of operation Some aspects of wireless operation are controlled enforced or restricted according to country of...

Page 48: ... as to minimize RF interference between links Frequency planning must consider interference from any PTP unit to any other PTP unit in the network Low levels of interference normally allow for stable operation and high link capacity The frequency planning task is made more straightforward by use of the following techniques x Using several different channels x Separating units located on the same m...

Page 49: ... been tested and describes how to keep RF exposure within safe limits x Compliance with radio regulations on page 4 12 describes how the PTP 250 complies with the radio regulations that are in force in various countries x Notifications on page 4 14 contains notifications of compliance with the radio regulations that are in force in various regions For information on configuring and operating the w...

Page 50: ...VLAN frames priority tagged frames provider bridged frames and provider backbone bridged frames In each case the service preserves MAC addresses VLAN ID Ethernet priority and Ethernet payload in the forwarded frame The maximum frame size for bridged frames is 2000 octets Layer two control protocols The PTP 250 is transparent to layer two control protocols L2CP including x Spanning tree protocol ST...

Page 51: ... IEEE 802 1Q frames The VLAN ID can be 0 priority tagged or in the range 1 to 4094 In band management In band management is the only management mode offered there is no out of band management In the in band management mode the management agent can be reached from the Ethernet port at the local ODU and assuming that the wireless link is established the Ethernet port at the remote ODU Wireless link ...

Page 52: ... are encapsulated within a lightweight MAC layer for transmission over the wireless link Protocol layers involved in bridging between Ethernet and wireless interfaces are shown in Figure 10 Protocol layers involved in bridging between external interfaces and the management agent are shown in Figure 11 In these figures the layers have the meanings defined in IEEE 802 1Q 2005 Figure 10 Protocol laye...

Page 53: ... Data network planning on page 2 23 describes factors to be considered when planning PTP 250 data networks x Data network specifications on page 4 7 contains specifications of the PTP 250 Ethernet interface x Using the configuration wizard on page 6 12 describes how to configure the IP and Ethernet attributes of the PTP 250 x Reviewing system configuration attributes on page 6 32 describes how to ...

Page 54: ...rver The PTP 250 management agent contains a web server Web based management offers a convenient way to manage the equipment from a locally connected computer or from a workstation connected through a management network without requiring any special management software The web based interfaces are the only interfaces supported for system installation and configuration management Web pages The web ...

Page 55: ... single end of the link is being managed the GUI is in node management mode When both ends of the link are being managed the GUI is in link management mode Link management is only possible when a wireless link has been established The procedure for toggling between link and node management is described in Selecting link or node management on page 7 4 SNMP The management agent supports fault and pe...

Page 56: ...h end of the link Firmware upgrade The management agent supports application firmware upgrade using the web based interface PTP 250 firmware images are digitally signed and the ODU will accept only images that contain a valid PTP digital signature The ODU always requires a reboot to complete a firmware upgrade Obtain the application firmware from the support website see Contacting Cambium Networks...

Page 57: ...rocedure in Resetting to default configuration with country reset on page 7 26 Use the Save Restore page to reset the unit to factory default configuration without resetting the country that was selected at first login Follow the procedure in Resetting to default configuration no country reset on page 7 25 Further reading on system management For more information on system management refer to the ...

Page 58: ...System management Chapter 1 Product description 1 30 phn 2510_002v000 Mar 2012 ...

Page 59: ...ctors to be taken into account when planning links such as range and path loss Introduces the PTP LINKPlanner x Planning for connectorized units on page 2 12 describes factors to be taken into account when planning to use connectorized ODUs with external antennas in PTP 250 links x Grounding and lightning protection on page 2 15 describes the grounding and lightning protection requirements of a PT...

Page 60: ...user on first login the PTP 250 caculates these limits automatically Many countries impose EIRP limits Allowed EIRP on products operating in the 5 4 GHz and 5 8 GHz bands These limits are calculated as follows x In the 5 4 GHz band 5470 MHz to 5725 MHz the EIRP must not exceed the lesser of 30 dBm or 17 10 x Log Channel width in MHz dBm x In the 5 8 GHz band 5725 MHz to 5875 MHz the EIRP must not ...

Page 61: ... on page 2 13 x When installing 5 4 GHz links in the USA it may be necessary to avoid frequencies used by Terminal Doppler Weather Radar TDWR systems For more information refer to Avoidance of weather radars USA only on page 2 5 Available spectrum The available spectrum for operation depends on the country of operation For example in Europe x The 5 4 GHz band is available in all EU countries x The...

Page 62: ...r avoidance In regions that mandate DFS the unit first ensures that there is no radar activity on a given channel for a period of 60 seconds before radiating on that channel Once a channel has been selected for operation the unit will continually monitor for radar activity on the operating channel If detected it will immediately cease radiating and attempt to find a new channel Radar avoidance req...

Page 63: ... sight from TDWR will need to be used In addition devices with bandwidths greater than 20 MHz may require greater frequency separation When planning a link in the USA visit http spectrumbridge com udrs home aspx enter the location of the planned link and search for TDWR radars If a TDWR system is located within 35 km 22 miles or has line of sight propagation to the PTP device perform the following...

Page 64: ...d loading on page 2 7 Power supply selection Select a suitable power supply unit for the PTP 250 The only supported units are the PoE power supply included in PTP 250 kits or the PTP 300 500 600 Series PIDU The PoE power supply is suitable for the majority of installations but the PIDU is required in the following situations x When a 48 V DC power supply is required either as the primary supply or...

Page 65: ...on towers or buildings will subject the mounting structure to significant lateral forces when there is appreciable wind Antennas are normally specified by the amount of force in pounds for specific wind strengths The magnitude of the force depends on both the wind strength and size of the antenna The ODU with or without the integral antenna is essentially a flat structure The magnitude of the late...

Page 66: ...ral force can be estimated from Force in pounds 0 0042Av2 Where Is A surface area in square feet v wind speed in miles per hour The lateral force produced by a single PTP 250 ODU integrated or connectorized model at different wind speeds is shown in Table 8 Table 8 Lateral force US Type of ODU Largest surface area square feet Lateral force lb at wind speed miles per hour 80 100 120 140 150 Integra...

Page 67: ...he ODU is fixed is also capable of withstanding the prevalent wind speeds and loads Wind speed statistics Contact the national meteorological office for the country concerned to identify the likely wind speeds prevalent at the proposed location Use this data to estimate the total wind loading on the support structures Sources of information x US National Weather Service http www nws noaa gov x UK ...

Page 68: ...ner to try different antenna heights and RF power settings It outputs an installation report that defines the parameters to be used for configuration alignment and operation The installation report can be used to compare the predicted and actual performance of the link Range and obstacles Calculate the range of the link and identify any obstacles that may affect radio performance Perform a survey ...

Page 69: ... particular link can be installed capability seasonal fade excess space free L L L L L _ Where is space free L _ Free Space Path Loss dB excess L Excess Path Loss dB fade L Fade Margin Required dB seasonal L Seasonal Fading dB capability L Equipment Capability dB Adaptive modulation Adaptive modulation ensures that the highest throughput that can be achieved instantaneously will be obtained taking...

Page 70: ...e used Choosing external antennas When selecting external antennas consider the following factors x The required antenna gain x Ease of mounting and alignment x Antenna polarization o For a simple installation process select one dual polarization antenna as the integrated antenna at each end o To achieve spatial diversity select two single polarization antennas at each end Spatial diversity provid...

Page 71: ... r e ne dépasse pas l intensité nécessaire à l établissement d une communication satisfaisante Calculating maximum power level for connectorized units If a connectorized PTP 250 link is to be installed in a country that imposes an EIRP limit in the 5 4 GHz or 5 8 GHz band choose an external antenna and RF cable that will not cause the PTP 250 to exceed the EIRP limit To calculate the highest setti...

Page 72: ... RF cable length 5 8 GHz FCC only The 5 8 GHz band FCC approval for the product is based on tests with a cable loss between the ODU and antenna of not less than 1 2 dB If cable loss is below 1 2 dB with a 6 ft diameter external antenna the connectorized PTP 250 may exceed the maximum radiated spurious emissions allowed under FCC 5 8 GHz rules Cable loss depends mainly upon cable type and length To...

Page 73: ...ction Structures equipment and people must be protected against power surges typically caused by lightning by conducting the surge current to ground via a separate preferential solid path The actual degree of protection required depends on local conditions and applicable local regulations Cambium recommends that PTP 250 installation is contracted to a professional installer Standards Full details ...

Page 74: ...on Zone B Similarly where the sphere rests on two finials the space under the sphere is considered to be in the zone of protection Figure 12 Rolling sphere method to determine the lightning protection zones Assess locations on masts towers and buildings to determine if the location is in Zone A or Zone B x Zone A In this zone a direct lightning strike is possible Do not mount equipment in this zon...

Page 75: ...drop cable must not be laid alongside a lightning air terminal x All grounding cables must be a minimum size of 10 mm2 cross sectional area csa 8AWG preferably 16 mm2 csa 6AWG or 25 mm2 csa 4AWG Grounding cable requirements When routing fastening and connecting grounding cables the following requirements must be implemented x Grounding conductors must be run as short straight and smoothly as possi...

Page 76: ...ower or mast must be correctly grounded x A grounding kit must be installed at the first point of contact between the drop cable and the tower near the top x A grounding kit must be installed at the bottom of the tower near the vertical to horizontal transition point This grounding kit must be bonded to the tower or tower ground bus bar TGB if installed x If the tower is greater than 61 m 200 ft i...

Page 77: ...r ground bar External ground bar Master ground bar Ground ring Outdoor CAT5e cable gel filled shielded with copper plated steel First point of contact with tower Mid point of tower Bottom of tower CAT5e cable foil or braid screened with screened connectors PoE Injector Equipment building Network switch ODU PTP 250 ground cable Tower building ground system ...

Page 78: ...n the wall of a building then in addition to the general protection requirements above the following requirements must be observed x The equipment must be lower than the top of the building or its lightning air terminal x The building must be correctly grounded A schematic example of a wall installation is shown in Figure 15 Figure 15 Grounding and lightning protection on wall ...

Page 79: ...round the roof perimeter to form the main roof perimeter lightning protection ring x Air terminals are typically installed along the length of the main roof perimeter lightning protection ring typically every 6 1 m 20 ft x The main roof perimeter lightning protection ring must contain at least two down conductors connected to the grounding electrode system The down conductors should be physically ...

Page 80: ...ory or high rise buildings Figure 17 x The drop cable shield must be bonded to the building grounding system at the entry point to the building x The drop cable shield must be bonded to the building grounding system at the entry point to the equipment area x An LPU must be installed within 600 mm 24 in of the entry point to the equipment area Figure 17 Grounding and lightning protection inside hig...

Page 81: ...ress identifies a router or other gateway that provides access to the rest of the data network Back to back links Do not use direct cabled connections between the data ports of two PoE power supplies Where two or more links are deployed in a chain always use an Ethernet switch or router to interconnect the links at a relay point Green Ethernet switches Do not connect PTP 250 units to Ethernet netw...

Page 82: ... IC licensing restrictions apply the USA and Canada and the other is for use in ETSI countries or the rest of the world ETSI RoW Table 11 contains part numbers for all kit variants Table 12 lists PTP 250 kit components Table 11 PTP 250 kit part numbers Description Part number PTP 250 5GHz Integrated ETSI RoW Link Complete C054025B005A PTP 250 5GHz Integrated ETSI RoW End Complete C054025B006A PTP ...

Page 83: ...ay be Integrated as illustrated or Connectorized End Complete kit contains one ODU with grounding cable Link Complete kit contains two ODUs with grounding cables PoE power supply End Complete kit contains one PoE Link Complete kit contains two PoEs The kit contains one of two variants of the PoE power supply the 9001GR illustrated or the PD7001 ...

Page 84: ... bracket Link Complete kit contains two brackets Choice of mains leads US UK and EU End Complete kit contains one US one UK and one EU lead Link Complete kit contains two US two UK and two EU leads Cable gland End Complete kit contains one gland Link Complete kit contains two glands Reset plug End Complete and Link Complete kit contain one reset plug ...

Page 85: ...ior Essex x 1000 ft Reel Outdoor Copper Clad CAT5E Cambium part number WB3175 x 328 ft 100 m Reel Outdoor Copper Clad CAT5E Cambium part number WB3176 RJ45 connectors The specified connectors and crimp tool are specific to Superior Essex BBDGe cable they may not work with other types of cable Tyco AMP Mod Plug RJ45 Unscreened 25 pk Cambium part number WB3177 Tyco AMP Crimp Tool Cambium part number...

Page 86: ...0 500 Cambium part number WB2978 Kit contents one LPU one grounding cable nuts bolts and two cable glands Indoor CAT5e cable The connected network equipment must feature screened RJ45 connectors and must be connected to ground otherwise the PoE power supply will not be grounded To connect the PoE power supply to network equipment use screened cable that meets this specification x Screening Must be...

Page 87: ...e 14 Additional inventory for connectorized ODUs Item Notes Antenna One required per link end or two per link end for spatial diversity Not supplied by Cambium For connectorized units operating in the USA or Canada choose external antennas from those listed in FCC and IC approved antennas on page 2 30 RF cable For connecting the ODU to the antenna May be cable of type LMR100 LMR200 LMR300 LMR400 o...

Page 88: ...e kit is required per antenna cable grounding point Refer to Table 13 for specifications and part numbers Lightning arrestor For protecting the antenna cable at building entry when the ODU is mounted indoors One required per antenna cable For example Polyphaser LSXL ME or LSXL FCC and IC approved antennas For connectorized units operating in the USA or Canada choose external antennas from Table 15...

Page 89: ...its pour l exploitation de l émetteur Table 15 Allowed antennas for deployment in USA Canada 5 4 GHz Manufacturer Antenna Type Gain dBi RadioWaves Radio Waves 1 5 foot Parabolic SP1 5 5 2 25 3dBi 25 3 RadioWaves 14 inch square flat plate FP 24 5 23 5 MARS 15 inch 370mm square flat plate MA WS55 27 26 0 Table 16 Allowed antennas for deployment in USA Canada 5 8 GHz Manufacturer Antenna Type Gain dB...

Page 90: ...uickFire Parabolic QF2 52 N RK 28 5 Y Gabriel Gabriel 2 5 foot Standard QuickFire Parabolic QF2 5 52 N 31 2 Y Gabriel Gabriel 4 foot Standard QuickFire Parabolic QF4 52 N 34 8 Y Gabriel Gabriel 4 foot Standard QuickFire Parabolic QF4 52 N RK 34 8 Y Gabriel Gabriel 2 foot Standard Dual QuickFire Parabolic QFD2 52 N 28 4 Y Gabriel Gabriel 2 5 foot Standard Dual QuickFire Parabolic QFD2 5 52 N 31 1 Y...

Page 91: ...ot Parabolic SP2 2 5 28 3 dBi 28 3 Y RadioWaves Radio Waves 3 foot Parabolic SP3 2 5 31 4 dBi 31 4 Y RadioWaves Radio Waves 4 foot Parabolic SP4 2 5 34 6 dBi 34 6 Y RFS RFS 2 foot Parabolic SPF2 52AN or SPFX2 52AN 27 9 dBi 27 9 Y RFS RFS 3 foot Parabolic SPF3 52AN or SPFX3 52AN 31 4 dBi 31 4 Y RFS RFS 4 foot Parabolic SPF4 52AN or SPFX4 52AN 33 9 dBi 33 9 Y RFS RFS 6 foot Parabolic SPF6 52AN or SP...

Page 92: ...eries PIDU with UK Lead Cambium part number WB3024 PTP 300 500 600 Series PIDU with US Lead Cambium part number WB3025 For guidance on choosing the most suitable power supply unit refer to Power supply selection on page 2 6 Additional mains lead PTP 250 kits include US UK and EU main leads The following mains leads may be ordered separately 3 pin IEC Mains Power Lead USA Cambium part number C00002...

Page 93: ... to the equipment must not be made unless under the express consent of the party responsible for compliance Any such modifications could void the user s authority to operate the equipment and will void the manufacturer s warranty The following topics are described in this chapter x Cambium Networks end user license agreement on page 3 2 x Hardware warranty on page 3 10 x Limit of liability on page...

Page 94: ... TO THE TERMS OF THIS AGREEMENT Definitions In this Agreement the word Software refers to the set of instructions for computers in executable form and in any media which may include diskette CD ROM downloadable internet hardware or firmware licensed to you The word Documentation refers to electronic or printed manuals and accompanying instructional aids licensed to you The word Product refers to C...

Page 95: ... that you may either i make 1 copy of the transportable part of the Software which typically is supplied on diskette CD ROM or downloadable internet solely for back up purposes or ii copy the transportable part of the Software to a PC hard disk provided you keep the original solely for back up purposes If the Documentation is in printed form it may not be copied If the Documentation is in electron...

Page 96: ...e without Cambium s written consent Unauthorized copying of the Software or Documentation or failure to comply with any of the provisions of this Agreement will result in automatic termination of this license Confidentiality You acknowledge that all Software and Documentation contain valuable proprietary information and trade secrets and that unauthorized or improper use of the Software and Docume...

Page 97: ... be conditioned upon transferee paying all applicable license fees and agreeing to be bound by this Agreement Updates During the first 12 months after purchase of a Product or during the term of any executed Maintenance and Support Agreement for the Product you are entitled to receive Updates An Update means any code in any form which is a bug fix patch error correction or minor enhancement but ex...

Page 98: ...TH RESPECT TO THE CORRECTNESS ACCURACY OR RELIABILITY OF THE SOFTWARE AND DOCUMENTATION Some jurisdictions do not allow the exclusion of implied warranties so the above exclusion may not apply to you Limitation of liability THE TOTAL LIABILITY OF CAMBIUM UNDER THIS AGREEMENT FOR DAMAGES WILL NOT EXCEED THE TOTAL AMOUNT PAID BY YOU FOR THE PRODUCT LICENSED UNDER THIS AGREEMENT IN NO EVENT WILL CAMB...

Page 99: ...uch terms and conditions are not inconsistent with the rights provided to you under the aforementioned provisions of the FAR and DFARS as applicable to the particular procuring agency and procurement transaction Term of license Your right to use the Software will continue in perpetuity unless terminated as follows Your right to use the Software will terminate immediately without notice upon a brea...

Page 100: ...e amended only in writing signed by both parties except that Cambium may modify this Agreement as necessary to comply with applicable laws Third party software The software may contain one or more items of Third Party Software supplied by other third party suppliers The terms of this Agreement govern your use of any Third Party Software UNLESS A SEPARATE THIRD PARTY SOFTWARE LICENSE IS INCLUDED IN...

Page 101: ...tions contains licenses and attributions for third party software components that are incorporated into the PTP 250 product This document is available for download from the support website see Contacting Cambium Networks on page 2 To gain access to source code licensed under the GPL please contact Cambium via the support web site see Contacting Cambium Networks on page 2 ...

Page 102: ...arrants 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 Cambium shall within this time at its own option either repair or replace the defective product within thirty 30 days of receipt of the defective product Repaired or replaced product will be subject to the original warranty peri...

Page 103: ... USE THE PRODUCT INCLUDING WITHOUT LIMITATION DAMAGES FOR LOSS OF BUSINESS PROFITS BUSINESS INTERRUPTION LOSS OF BUSINESS INFORMATION OR ANY OTHER PECUNIARY LOSS OR FROM ANY BREACH OF WARRANTY EVEN IF CAMBIUM HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES Some states do not allow the exclusion or limitation of incidental or consequential damages so the above exclusion or limitation may not ap...

Page 104: ...Limit of liability Chapter 3 Legal information 3 12 phn 2510_002v000 Mar 2012 ...

Page 105: ...cifications of the PTP 250 wireless interface including RF bands channel width and link loss x Data network specifications on page 4 7 contains specifications of the PTP 250 Ethernet interface x Compliance with safety standards on page 4 8 lists the safety specifications against which the PTP 250 has been tested and certified It also describes how to keep RF exposure within safe limits x Complianc...

Page 106: ... Dimensions Width 370 mm 14 5 in Height 370 mm 14 5 in Depth 95 mm 3 75 in Weight 5 35 Kg 11 8 lbs including bracket Table 19 Connectorized ODU physical specifications Category Specification Dimensions Width 309 mm 12 2 in Height 309 mm 12 2 in Depth 105 mm 4 01 in Weight 4 7 Kg 10 4 lbs including bracket Table 20 ODU environmental specifications Category Specification Temperature 40 C 40 F to 60 ...

Page 107: ... mm 2 ins x 1 5 ins x 6 ins Type PD7001 88 mm x 51 mm x 166 mm 3 5 ins x 2 ins x 6 5 ins 250 mm x 40 mm x 80 mm 9 75 ins x 1 5 ins x 3 ins Table 22 Power supply unit environmental specifications Category PoE power supply 9001GR and PD7001 PIDU Operating temperature 0 C to 40 C 32 F to 104 F 40 C to 60 C 40 F to 140 F Storage temperature 20 C to 70 C 4 F to 158 F Operating humidity Maximum 90 Maxim...

Page 108: ... AC input current 0 8A 110 to 220 V AC AC frequency 50 to 60 Hz 47 to 60 Hz Alternative DC Input None 37 to 60 V DC Table 24 PoE power supply Ethernet interface specifications Category PoE power supply 9001GR and PD7001 Input Data In Ethernet 10 100 1000 Base T RJ 45 female socket Output Data Power Out Ethernet 10 100 1000 Base T plus 55 V DC nominal RJ 45 female socket with DC voltage on pairs 7 ...

Page 109: ...cy control Initially 10 15 sec Out of service on interference 100 ms Channel width 20 MHz and 40 MHz Manual power control Maximum power can be controlled lower than the power limits in order to control interference to other users Receiver noise figure Typically 6 dB Integrated antenna type Integrated flat plate antenna gain 23 dBi External antenna gain See Calculating maximum power level for conne...

Page 110: ...be controlled lower than the power limits in order to control interference to other users Receiver noise figure Typically 6 dB Antenna type integrated Flat plate antenna gain 23 dBi Antenna type external See FCC and IC approved antennas on page 2 30 Antenna beamwidth integrated 8 degrees Max path loss 150 dB 20 MHz channel integrated antenna Range optical line of sight 54 km 34 miles at channel wi...

Page 111: ...Table 27 Table 27 Ethernet bridging specifications Ethernet bridging Specification Protocol IEEE802 1 compatible Interface 1000BaseT RJ 45 supports MDI MDIX auto crossover Maximum Ethernet data rate 256 Mbps Maximum Ethernet frame size 2000 bytes NOTE Practical Ethernet rates will depend on network configuration higher layer protocols and platforms used Over the air throughput will be capped to th...

Page 112: ...Canada CSA C22 2 No 60950 1 Second Edition International CB Certified to IEC60950 1 2005 Second Edition and EN60950 1 2006 Electromagnetic compatibility EMC compliance The PTP 250 complies with European EMC Specification EN301 489 1 with testing carried out to the detailed requirements of EN301 489 4 For EN 61000 4 2 1995 Electro Static Discharge ESD Class 2 8 kV air 4 kV contact discharge the PTP...

Page 113: ...ada limits for the general population See the Health Canada web site at http www hc sc gc ca ewh semt pubs radiation 99ehd dhm237 limits limites_e html and Safety Code 6 x EN 50383 2002 Basic standard for the calculation and measurement of electromagnetic field strength and SAR related to human exposure from radio base stations and fixed terminal stations for wireless telecommunication systems 110...

Page 114: ...Rearranging terms to solve for distance yields Calculated distances and power compliance margins Table 30 shows calculated minimum separation distances recommended distances and resulting margins for each frequency band and antenna combination These are conservative distances that include compliance margins At these and greater separation distances the power density from the RF field is below gene...

Page 115: ...ctorized 1 0 34 0 34 3630 10 3 13 5 1 The figures for these antennas include cable losses Gain of antenna in dBi 10 log G The regulations require that the power used for the calculations is the maximum power in the transmit burst subject to allowance for source based time averaging At 5 4 GHz and EU 5 8 GHz the products are generally limited to a fixed EIRP which can be achieved with the Integrate...

Page 116: ...ons and found to comply The frequency bands in which the system operates may be unlicensed and in these bands the system can be used provided it does not cause interference Further it is not guaranteed protection against interference from other products and installations Table 31 lists the radio specification type approvals that have been granted for PTP 250 Table 31 Radio certifications Band Regi...

Page 117: ...ence However the equipment can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to other radio communications There is no guarantee that interference will not occur in a particular installation A Class B Digital Device is a device that is marketed for use in a residential environment notwithstanding use in commercial bu...

Page 118: ...tems operating in the 5 4 GHz band They are Class 1 devices and use operating frequencies that are harmonized throughout the EU member states The operator is responsible for obtaining any national licenses required to operate these products and these must be obtained before using the products in any particular country Hereby Cambium Networks declares that the 5 4 GHz products comply with the essen...

Page 119: ...t 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 US FCC Rules These limits are designed to provide reasonable protection against ...

Page 120: ... le brouillage est susceptible d en compromettre le fonctionnement In Canada high power radars are allocated as primary users meaning they have priority of the 5650 5850 MHz spectrum These radars could cause interference or damage to license exempt local area network LE LAN devices Product labels FCC IDs and Industry Canada Certification Numbers are reproduced on the product label Figure 19 Figure...

Page 121: ...9 regarding border PFD limit This equipment operates as a secondary application so it has no rights against harmful interference even if generated by similar equipment and must not cause harmful interference on systems operating as primary applications Hereby Cambium Networks declares that the PTP 250 products comply with the essential requirements and other relevant provisions of Directive 1999 5...

Page 122: ...Notifications Chapter 4 Reference information 4 18 phn 2510_002v000 Mar 2012 ...

Page 123: ...page 5 4 describes how to install the ODU integrated or connectorized on the supporting structure x Installing connectorized antennas on page 5 8 describes how to install separate antenna s only required for connectorized ODUs x Installing the drop cable and LPU on page 5 14 describes how to install the drop cable from the ODU to the LPU and PoE power supply and to provide grounding for the instal...

Page 124: ...g the safety precautions below MUST be observed Safety precautions All national and local safety standards must be followed while developing a site installing equipment or performing maintenance Ensure that personnel are not exposed to unsafe levels of RF energy The units start to radiate as soon as they are powered up Respect the safety standards defined in Compliance with safety standards on pag...

Page 125: ...ring inventory Perform the following inventory checks x Check that an installation plan is available and that it is based on the principles described in Chapter 2 Planning considerations x Check that the correct components are available as described in Ordering components on page 2 24 x Check the contents of all packages against their packing lists Preparing tools Check that following specific too...

Page 126: ...If a connectorized ODU is being installed see also x Installing connectorized antennas on page 5 8 Checks and safety precautions To prevent failure of the assembly take the following precautions Do not remove the pre fitted mounting bracket Do not mount the ODU on poles with diameter less than 50mm 2 or greater than 75mm 3 Check that the integrated lifting eye and its fixing Figure 22 are not dama...

Page 127: ...ble Figure 22 Figure 22 Checking the ODU before mounting Selecting a position for the ODU connectorized If the ODU is connectorized select a mounting position that gives it maximum protection from the elements but still allows easy access for connecting and weatherproofing the cables To minimize cable losses select a position where the antenna cable lengths can be minimized ...

Page 128: ...utions on page 5 4 3 When the ODU is in position use the safety loop as a fixing point to secure a permanent safety lanyard from the supporting structure to the ODU as a precaution against mounting failure 4 Offer the ODU with pre fitted mounting bracket to the bracket strap and affix using the captive M8 bolt Tighten to ensure the assembly grips but can be adjusted on the pole 5 Adjust the elevat...

Page 129: ...in 0 3 meters 1 ft of the ODU bracket and on the same metal if necessary remove paint and apply anti oxidant compound first Do not attach grounding cables to the ODU mounting bracket bolts as this arrangement will not provide full protection 7 To prevent corrosion and possible loss of ground continuity weatherproof the grounding point ...

Page 130: ...or mounting the antennas are specific to the antenna chosen Refer to the antenna manufacturer s instructions Mounting and connecting antennas To mount and connect the antenna s proceed as follows 1 Mount the antenna s according to manufacturer s instructions When using separate antennas to achieve spatial diversity mount one with Horizontal polarization and the other with Vertical polarization 2 C...

Page 131: ... Mar 2012 5 9 3 If the ODU is to be mounted indoors assemble the Polyphaser LSXL ME or LSXL as shown 4 If the ODU is to be mounted indoors install lightning arrestors at the building entry point and connect the lighting arrestors to the master ground bar of the building ...

Page 132: ...llowing the procedure Weatherproofing an N type connector on page 5 11 Weatherproof the antenna joints in the same way unless the antenna manufacturer specifies a different method 7 Ground the antenna cables to the supporting structure at the correct points They should be grounded within 0 3 meters 1 foot of the ODU and antennas using the cable grounding kit part number 01010419001 A mast or tower...

Page 133: ...e should be used to weatherproof the N type connectors fitted to the connectorized ODU and antenna if recommended by the antenna manufacturer N type connectors should be tightened using a torque wrench set to 15 lb in or 1 7 Nm If a torque wrench is not available N type connectors may be finger tightened To weatherproof an N type connector proceed as follows 1 Ensure the connection is tight A torq...

Page 134: ... tape edges 4 Cut a 125mm 5 inches length of rubber tape self amalgamating 5 Expand the width of the tape by stretching it so that it will wrap completely around the connector and cable 6 Press the tape edges together so that there are no gaps The tape should extend 25mm 1inch beyond the PVC tape ...

Page 135: ...malgamating tape overlapping at half width 8 Repeat with a further four layers of 19 mm 0 75 inch PVC tape always overlapping at half width Wrap the layers in alternate directions Second layer top to bottom Third layer bottom to top Fourth layer top to bottom Fifth layer bottom to top The bottom edge of each layer should be 25 mm 1 inch below the previous layer 9 Completed weatherproof connection ...

Page 136: ... on page 5 18 x Connecting an RJ45 and gland to a unit on page 5 19 x Disconnecting an RJ45 and gland from a unit on page 5 21 x Making a drop cable ground point on page 5 22 x Installing and grounding the drop cable at building entry on page 5 26 The drop cable and ground cable installation must meet the requirements defined in Grounding and lightning protection on page 2 15 To provide effective ...

Page 137: ...eed as follows 1 Cut off the approximate length required allowing a bit of surplus or leave it on the drum so that it can be unwound as the cable is hoisted 2 Slide one or more hoisting grips onto to the top end of the main drop cable To determine the number of hoisting grips required consult the grip manufacturer 3 Secure the hoisting grip to the cable using a special tool as recommended by the m...

Page 138: ...autions x ALWAYS wear cut resistant gloves check the label to ensure they are cut resistant x ALWAYS wear protective eyewear x ALWAYS use a rotary blade tool to strip the cable DO NOT use a bladed knife To use the rotary blade tool fit it around the outer cable sheath and rotate the cutter around the cable once or twice The stripped outer section can then be removed Assembly Assemble the drop cabl...

Page 139: ...pe Check that the crimp tool matches the RJ45 connector being used otherwise the cable or connector may be damaged The cable inner sheath must be located correctly under the connector housing tang If this is not done correctly there is no strain relief on the cable terminations Figure 24 shows the end of a drop cable fitted with an RJ45 plug and a gland ...

Page 140: ...e grip handle is fastened to the supporting structure remove the hoist line 2 Connect the top end of the long drop cable to the ODU PoE port as described in Connecting an RJ45 and gland to a unit on page 5 19 3 Lay the main drop cable as far as the building entry point ensuring there is enough length to extend through the wall of the building to the LPU 4 Attach the main drop cable to the supporti...

Page 141: ...U and the LPU To connect the drop cable with a gland to a unit LPU or ODU proceed as follows 1 Insert the RJ45 plug into the socket in the unit making sure that the locking tab snaps home 2 Support the drop cable and gently hand screw the gland body into the unit until the O ring seal is flush to the unit body Do not fit the back shell prior to securing the gland body 3 Once the gland is fully han...

Page 142: ...n 2510_002v000 Mar 2012 4 When the gland body has been fitted tighten the gland back shell Do not over tighten the gland back shell as the internal seal and structure may be damaged The following example shows correctly tightened and over tightened gland back shells ...

Page 143: ...but it applies in principle to both the ODU and the LPU To disconnect the drop cable with a gland from a unit LPU or ODU proceed as follows 1 Remove the gland back shell 2 Wiggle the drop cable to release the tension of the gland body When the tension in the glad body is released a gap opens at the point shown in red in the above photograph 3 Unscrew the gland body 4 Use a small screwdriver to dep...

Page 144: ...with grounding 2 hole lug fitted M10 x 1 x self Amalgamating tape x 1 x PVC tape x 3 x tie wraps x 2 x bolt washer and nut Ground cables must be installed without drip loops and pointing down towards the ground otherwise they may not be effective To ground the drop cable to a metal structure using the Cambium grounding kit part number 01010419001 proceed as follows 1 Remove 60 mm 2 5 inches of the...

Page 145: ...3 3 Fold the ground wire strap around the drop cable screen and fit cable ties 4 Tighten the cable ties with pliers Cut the surplus from the cable ties 5 Cut a 38mm 1 5 inches section of self amalgamating tape and wrap it completely around the joint between the drop and ground cables ...

Page 146: ...mainder of the self amalgamating tape to wrap the complete assembly Press the tape edges together so that there are no gaps 7 Wrap a layer of PVC tape from bottom to top starting from 25 mm 1 inch below and finishing 25 mm 1 inch above the edge of the self amalgamating tape over lapping at half width ...

Page 147: ...ch layer should be 25mm 1 inch above A and 25 mm 1 inch below B the previous layer 9 Prepare the metal grounding point of the supporting structure to provide a good electrical contact with the grounding cable clamp Remove paint grease or dirt if present Apply anti oxidant compound liberally between the two metals 10 Clamp the bottom lug of the grounding cable to the supporting structure using site...

Page 148: ...into the building 2 Ground the drop cable to the external ground bar outside the building entry point as described in Making a drop cable ground point on page 5 22 3 Install the LPU inside the building not more than 600 mm 24 in from the building entry point Mount the LPU with cable glands facing downwards 4 Ground the LPU to the master ground bar 5 Cut any surplus length from the bottom end of th...

Page 149: ...t the LPU PoE cable to the other port of the LPU as described in Connecting an RJ45 and gland to a unit on page 5 19 8 Run the LPU PoE cable to the location of the PoE power supply If it is necessary to disconnect the drop cable refer to Disconnecting an RJ45 and gland from a unit on page 5 21 ...

Page 150: ...the drop cable on page 5 29 x Preparing the PoE power supply to network equipment cable on page 5 29 Preparing for PoE power supply installation The PoE power supply can be installed free standing on an even horizontal surface or wall mounted Install multiple PoEs 1 cm apart The following guidelines should be adhered to before cabling the PoE power supply to the Ethernet source and ODU x Verify th...

Page 151: ...he PoE power supply to network equipment cable Prepare the CAT5e cable that will connect the PoE power supply to the network equipment This cable must meet the following requirements x Use either foil screen FTP or braided screen STP cable x Use screened RJ45 connectors with metal shells at both ends x Ensure there is a continuous electrical connection between both screened connectors The connecte...

Page 152: ...Installing the PoE power supply Chapter 5 Installation 5 30 phn 2510_002v000 Mar 2012 ...

Page 153: ... unit power it up and open the web interface x Upgrading firmware version on page 6 9 describes how to ensure that the latest firmware version is installed on the unit x Using the configuration wizard on page 6 12 describes how to configure the LAN date SNMP and SMTP attributes of the unit x Using the wireless wizard on page 6 21 describes how to configure the wireless attributes of the unit When ...

Page 154: ... are powered up Respect the safety standards defined in Compliance with safety standards on page 4 8 in particular the minimum separation distances Observe the following guidelines x Never work in front of the antenna when the ODU is powered x Always power down the PoE power supply or PIDU before connecting or disconnecting the drop cable from either the power supply ODU or LPU Regulatory complian...

Page 155: ...onfiguring the management PC on page 6 3 x Connecting to the PC and powering up on page 6 5 x Logging into the web interface on page 6 6 Configuring the management PC Install Java on the management PC if not already installed as this is used by the PTP 250 web interface To configure the local management PC to communicate with the PTP 250 proceed as follows 1 Select Properties for the Ethernet port...

Page 156: ...4 phn 2510_002v000 Mar 2012 3 Click on Properties 4 Enter an IP address that is valid for the 169 254 X X network avoiding 169 254 0 0 and 169 254 1 1 and 169 254 1 2 A good example is 169 254 1 3 5 Enter a subnet mask of 255 255 0 0 Leave the default gateway blank ...

Page 157: ...ly are correctly connected 2 Connect the PC Ethernet port to the DATA IN port of the PoE power supply using a standard not crossed Cat5e cable PoE power supply type 9001GR is illustrated 3 Connect the PoE power supply to an AC outlet 100 V AC to 240 V AC The PoE power supply has no power switch It supplies power to the ODU as soon as AC power is applied 4 Wait 45 seconds then check that the PORT L...

Page 158: ...default is 169 254 1 1 into the browser address bar Press ENTER 3 For user security Cambium digitally signs its applications On the first login the digital signature confirmation is displayed Tick the Always trust content from this publisher box and select Run 4 Depending upon the browser version used the digitally signed Java app splash screen may be displayed Wait for the Login page 5 The Login ...

Page 159: ...login to a unit that has been reset to full default configuration the Set Country Code page is displayed Select the Country Code and select OK to confirm it is correct Ensure the correct Country Code is selected An incorrect selection may result in illegal radio operation Once set the Country Code can only be changed by using the reset plug as described in Resetting to default configuration with c...

Page 160: ...n 2510_002v000 Mar 2012 Figure 27 Menu and System Summary page on first login When a wireless link is established link management becomes available The procedure for toggling between link and node management is described in Selecting link or node management on page 7 4 ...

Page 161: ...ed Otherwise the remote end may not be accessible Checking the installed firmware version To check that the latest firmware version is installed proceed as follows 1 Select menu option Status The System Status page is displayed 2 Note the Software Version attribute near the top left of the page 3 Go to the support website see Contacting Cambium Networks on page 2 and find Point to Point software u...

Page 162: ...d firmware image for example PTP250 04 01 bin 3 Select menu option Firmware Update The Firmware Update page is displayed 4 Select the Method The default is HTTP If FTP or TFTP is selected additional attributes are displayed and must be completed 5 Select Browse Navigate to the folder containing the downloaded firmware image and select Open 6 Select Start Firmware Upload and Yes to confirm The uplo...

Page 163: ...fter the reboot check that the required firmware image is loaded and running 9 Save the post upgrade system configuration as described in Saving the system configuration on page 6 34 When a wireless link has been established link management can be used to upgrade both ends of the link simultaneously Figure 28 The procedure for toggling between link and node management is described in Selecting lin...

Page 164: ...es x Starting configuration wizard on page 6 12 x Step 1 LAN configuration on page 6 13 x Step 2 Date and time settings on page 6 15 x Step 3 SNMP SMTP configuration on page 6 16 x Step 4 Confirm configuration on page 6 20 Starting configuration wizard To start the configuration wizard select menu option Configuration Wizard The Configuration Summary page is displayed Figure 29 To continue with th...

Page 165: ...n page Table 32 Step 1 LAN Configuration attributes Attribute Meaning IP Address Internet protocol IP address This address is used by the family of Internet protocols to uniquely identify this unit on a network All units are shipped with a default IP address of 169 254 1 1 Change this default IP address to ensure that a it is unique on the network and b the Master and Slave units have different IP...

Page 166: ...faces VLAN Priority Only displayed when Use VLAN for Management is enabled Select the VLAN priority range 0 to 7 that will be included in Ethernet frames generated by the management interfaces Ethernet Auto Negotiation When the box is ticked it means that configuration is automatically negotiated This is the default setting When the box is not ticked it means that configuration is forced Select th...

Page 167: ...plies accurate date and time information to the system It can be set to run with or without a connection to a Network Time Protocol NTP server x In the absence of an NTP server connection the clock can be set to run manually The clock is battery backed and will continue to operate for several days after the ODU is switched off x If an NTP server connection is available the clock can be set to sync...

Page 168: ...e port number of the networked NTP server By convention the default value is 123 Synchronization Interval The interval at which the PTP 250 requests time correction updates from the NTP server If a request fails the PTP 250 automatically performs three retries before waiting for the next Synchronization Interval User Interface Timeout The time that is allowed to pass without user activity before t...

Page 169: ...me for this managed node By convention this is the fully qualified domain name MIB II Sys Location The physical location of this managed node MIB II Sys Contact The contact name for this managed node with contact details Enabling SNMP To configure SNMP tick the Enable SNMP box Figure 33 The attributes are described in Table 35 Update the attributes as required Use the Add buttons to enter addition...

Page 170: ...status of links SNMP clients PTP 250 systems are limited to read only access to the SNMP server OID The point in the object identifier hierarchy at which access is allowed SNMP Traps Index Sequential number of the trap destination Destination IP IP address of the SNMP server trap receiver This is normally the network management system but it may be a separate trap receiver Destination Port Server ...

Page 171: ...PTP 250 will send the alert messages Email From The email address used by the PTP 250 to log into the email server This must be recognized by the server Email Server IP Address The IP address of the networked email server Email Server Port The port number used by the networked email server By convention the default value is 25 Alert Configuration A list of events or status changes To select which ...

Page 172: ...ghlighted in yellow If any of the attributes are incorrect select Back to return to previous steps and update them If all attributes are correct select Finish Figure 35 Step 4 Confirm Configuration page If the IP Address Subnet Mask or Gateway IP Address of the unit have been updated to meet network requirements then reconfigure the local management PC to use an IP address that is valid for the ne...

Page 173: ...llowing procedures x Starting wireless wizard on page 6 21 x Step 1 Wireless configuration on page 6 22 x Step 2 Confirm wireless configuration on page 6 25 Starting wireless wizard To start the installation wizard select menu option Wireless Wizard The Wireless Configuration Summary page is displayed Figure 36 To continue with the wizard select Next Figure 36 Wireless Configuration Summary page ...

Page 174: ... interfere with TDWR radars This must be done before the units are allowed to radiate on site The system designer will have provided a list of any affected channels based on the instructions in Avoidance of weather radars USA only on page 2 5 When operating with external antennas in countries that impose an EIRP limit choose an external antenna and RF cable that will not cause the PTP 250 to excee...

Page 175: ... Auto Range on Arm Disarm is selected Auto Range on Arm Disarm Enable automatic measurement of the link range If this option is selected When the link is armed the unit sets the configured range to maximum and measures the link range automatically When the link is disarmed the unit sets the configured range to equal the automatically measured range Master Slave Mode Each link consists of one Maste...

Page 176: ... the antenna cables for the two antenna ports then enter the average value Maximum Power Level The maximum power dBm at which the unit will transmit The highest value in the list is automatically constrained to be within regulatory limts based on the values entered in Antenna Gain and Cable Loss Use Fixed Rate Modulation If this option is selected then adaptive modulation is disabled the unit tran...

Page 177: ...key must be used at both ends of the link Step 2 Confirm wireless configuration Step 2 of the wireless wizard is for reviewing and confirming the updated attributes Figure 38 Updated attributes are highlighted in yellow Figure 38 Step 2 Confirm Wireless Configuration page Use the Rollback feature to protect the link against loss of service caused by inadvertent mis configuration If the link stays ...

Page 178: ...vious steps and update them If all attributes are correct choose one of the following options x If antenna alignment tones are not wanted select Finish This is the preferred option before bench testing the units x If antenna alignment tones are wanted select Set Armed and Yes to confirm This is the preferred option before site installation and antenna alignment ...

Page 179: ...rting up the units To connect one of the units to a management PC and start up both units proceed as follows 1 Select the unit from which this process is to be controlled either Master or Slave This is the local unit 2 Check that the management PC is connected to the local unit powered up and logged on 3 Start the local unit 4 Start the remote unit 5 Log into the local unit as described in Logging...

Page 180: ...it can also lead to misalignment To prevent misalignment continue to monitor receive signal level during final tightening of the bolts To align the antennas proceed as follows 1 At each end of the link adjust the antenna to point at the other end of the link This should be done with the aid of a compass 2 Without moving the master antenna adjust the elevation and azimuth of the slave antenna to ac...

Page 181: ...talled at either site with two separate antennas for spatial diversity proceed as follows 1 Connect the horizontal polarization antenna to the ODU disconnect the vertical polarization antenna 2 Perform Aligning antennas on page 6 28 3 Connect the vertical polarization antenna to the ODU disconnect the horizontal polarization antenna 4 Perform Aligning antennas on page 6 28 5 Re connect the horizon...

Page 182: ...lign the unit to give the highest pitch tone Table 38 Antenna alignment tones State Name Tone Description State Description Pitch Indication Free Channel Search Regular beep Executing band scan N A Scanning Slow broken tone Not demodulating the wanted signal Rx Power Synchronized Fast broken tone Demodulating the wanted signal Rx Power Registered Solid tone Both Master and Slave units exchanging R...

Page 183: ...ys the receive power over the last three minutes This allows the installer to slowly sweep the antenna during installation and monitor the variation in signal strength with angular position The page automatically refreshes every three seconds The page displays the instantaneous signal strength at the top right Disarming the units When antenna alignment is complete both units in the link must be di...

Page 184: ...iewing system configuration attributes Revisit the configuration and wireless wizards to check that the link is correctly configured for operational running Refer to Using the configuration wizard on page 6 12 and Using the wireless wizard on page 6 21 Comparing actual to predicted performance For at least one hour of operation after disarming monitor the link to check that it is achieving predict...

Page 185: ...k that the Master and Slave units are reachable from the network management system by opening the web interface to the management agents or by requesting ICMP echo response packets using the Ping application The network management system will normally be geographically remote from the sites so it may be necessary to request that this action is completed by co workers at the management center 4 Che...

Page 186: ...pgrading the unit to a new firmware version The process for restoring a unit to a previously saved configuration is described in Restoring the system configuration on page 7 24 To save the current configuration select menu option Configuration Wizard Save And Restore The Save and Restore page is displayed Figure 41 Select Save Configuration File and save the configuration file to a PC hard drive F...

Page 187: ...ibes the layout and the main menu options of the PTP 250 web based management interface x Managing link status and alerts on page 7 13 describes how to manage PTP 250 link status and alerts x Managing performance on page 7 15 describes how to manage the performance of the PTP 250 link x Restoring resetting and rebooting on page 7 24 describes how to restore the system configuration reset to defaul...

Page 188: ...t on page 7 12 Accessing the web interface The web interface is best viewed using a screen resolution of at least 1024 x 768 pixels The web pages have been tested with Internet Explorer 7 Internet Explorer 8 Firefox 3 and Firefox 3 5 on PCs and Safari on Mac OS X Other browsers have not been tested To access the web interface type the IP address of the unit into the browser address bar and press E...

Page 189: ...ight blue background Table 39 lists the procedures that may be performed from each menu option Many of these procedures are part of the initial configuration and alignment process described in Chapter 6 Configuration and alignment Table 39 Procedures performed from each menu option Menu option Procedures Viewing the system summary on page 7 6 Managing link status and alerts on page 7 13 Checking t...

Page 190: ...thernet packet errors reported by ODU on page 8 7 Checking channel status on page 7 18 Checking the retry histogram on page 7 20 Uploading a new firmware version on page 6 10 Using the diagnostics plotter on page 7 21 Changing password on page 7 12 Rebooting the unit on page 7 28 Logging out on page 7 12 Selecting link or node management To toggle between link management and node management use th...

Page 191: ...link In link mode many of the web pages display attributes for both the Managed and Peer units Figure 45 The Managed unit is the one whose IP address is in the browser address bar and the Peer unit is its link partner Link management is only possible when a wireless link has been established Link management is particularly useful for firmware upgrades Figure 45 Example of web page in link manageme...

Page 192: ...d A yellow background with suitable status text for example Acquiring indicates that the link is not established Whenever the Wireless Link Status is not Up a yellow warning triangle is displayed on the navigation bar For more information refer to Managing link status and alerts on page 7 13 System Name Name of this PTP 250 system link This is set in the Installation Wizard see Step 1 Wireless con...

Page 193: ... abnormal states Viewing the system status To display the System Status page select menu option Status The System Status page Figure 47 gives the user a detailed view of the operation of the system from both the wireless and network perspectives Figure 47 System Status page The page is subdivided into three sections x Equipment This contains the unit s inventory and identification information x LA...

Page 194: ... in the Installation Wizard see Step 1 Wireless configuration on page 6 22 Software Version The version of firmware installed The format of the attributes is 250 xx yy where xx is system release yy minor system release Hardware Model Hardware model of this unit Hardware Version Hardware version of this unit Country The country in which this unit is configured to operate This is set at first login ...

Page 195: ...page 6 13 MAC Address MAC address of the Ethernet LAN port of this unit This is not user configurable Link The current status of the Ethernet link A state of Up with a green background indicates that an Ethernet link is established Any status on a yellow background indicates that the Ethernet link is not established Speed The negotiated speed Mbps of the Ethernet interface Duplex Indicates whether...

Page 196: ...e 6 22 Current Channel The channel MHz in which this link operates This is set in the Installation Wizard see Step 1 Wireless configuration on page 6 22 Extended Channel The extended channel MHz This only applies when Channel Width is 40 MHz Transmit Power The maximum mean minimum and latest measurements of Transmit Power dBm See Diagnostics calculated over time on page 7 23 Receive Power The maxi...

Page 197: ... H Ratio The maximum mean minimum and latest measurements of V H Ratio See Diagnostics calculated over time on page 7 23 This is calculated from Power received by the vertical antenna input dB Power received by the horizontal antenna input dB V H Ratio is an aid to debugging a link If it has a large positive or negative value then investigate the following potential problems An antenna coaxial lea...

Page 198: ...in this unit dBm Configured Range The distance km between the two ODUs as set in Step 1 Wireless configuration on page 6 22 Measured Range The distance km between the two ODUs as measured by the operational link Changing password To change the admin password select menu option Change Password The Change Password page is displayed Figure 48 Enter and confirm the new password Figure 48 Change Passwo...

Page 199: ...naging link status Whenever the Wireless Link Status is not Up a yellow warning triangle is displayed on the navigation bar Figure 49 The warning triangle is visible from all web pages Click the warning triangle or menu option Home to return to the System Summary page and view the Wireless Link Status If the warning triangle is replaced by a green square it indicates that the Wireless Link Status ...

Page 200: ...g for a Master Radar CAC Radar Channel Availability Check CAC in progress Initializing The unit is starting up or resetting for example for a configuration change or because radar has been detected No Channels Radar CAC has determined that there are no useable channels Managing email alerts The management agent can be configured to generate alerts by electronic mail when certain events occur The e...

Page 201: ...ing procedures x Checking system statistics on page 7 15 x Checking channel status on page 7 18 x Checking the retry histogram on page 7 20 x Using the diagnostics plotter on page 7 21 x Diagnostics calculated over time on page 7 23 Checking system statistics To check system statistics select menu option Statistics The System Statistic page is displayed Figure 50 Figure 50 System Statistics page ...

Page 202: ...good packets the bridge has sent for transmission by the local Ethernet interface Rx Bytes The number of bytes received by the Ethernet interface Tx Bytes The number of bytes transmitted by the Ethernet interface Rx Dropped Total number of frames dropped due to the lack of sufficient capacity in the receive buffer Tx Dropped Total number of frames dropped due excessive collisions late collision an...

Page 203: ...terface Rx Bytes The number of bytes received from the wireless interface Tx Bytes The number of bytes transmitted by the wireless interface Rx Dropped Total number of frames dropped due to the lack of sufficient capacity in the receive buffer Tx Dropped Total number of frames dropped due to excessive collisions late collision and frame ageing Rx Frame Errors Total number of frame errors detected ...

Page 204: ...nnel status select menu option Statistics Channel Status The Channel Status page is displayed Figure 51 This page shows the status of each channel as recorded by the latest band scan Figure 51 Channel Status page The Signal Strength graph is described in Figure 52 To refresh the data and graph select Re scan ...

Page 205: ...PTP 250 User Guide Managing performance phn 2510_002v000 Mar 2012 7 19 Figure 52 Channel Status page Signal Strength graph ...

Page 206: ...have been re transmitted how many times Valid values can vary a short range LOS link should run with very few retries A longer range nLOS link may run with up to 10 retries To check the retry histogram select menu option Statistics Retry Histogram The Retry Histogram page is displayed Figure 53 Figure 53 Retry Histogram page To reset all retry statistics select Reset Histogram Statistics ...

Page 207: ...s against time select menu option Diagnostics Plotter The Diagnostics Plotter page is displayed Figure 54 Use the Diagnostics Selector drop down list to select a diagnostic type to plot Use the Trace Selection to select traces of the maximum blue mean red or minimum green values of the diagnostic type Figure 54 Diagnostic Plotter page ...

Page 208: ...dar is detected and causes a channel to be barred then the bar or multiple bars will show up on this plot The maximum mean minimum and latest values of some of these diagnostics are also displayed on the System Status page See Diagnostics calculated over time on page 7 23 Downloading diagnostic data To download a single diagnostic to a CSV file use the Download Controller Select the statistic from...

Page 209: ...t arrays represent the following x Max The maximum value measured over the last hour x Avg The mean of a set of values recorded at one second intervals over the last hour x Min The minimum value measured the last hour x Latest The latest value measured If the link has been running for less than one hour then the values are calculated over the time that has elapsed since the link was established Th...

Page 210: ... procedure to restore a unit to a previously saved configuration Refer to Saving the system configuration on page 6 34 for instructions on when and how to save the configuration The restore is only guaranteed to work if the installed firmware version has not been changed since the configuration file was saved This is why the configuration should always be saved immediately after upgrading the firm...

Page 211: ...setting to default configuration with country reset on page 7 26 To reset to default configuration without country reset proceed as follows 1 Select menu option Configuration Wizard Save And Restore The Save Restore page is displayed Figure 41 2 Select Reset to Default Configuration and Yes to confirm 3 Wait for at least 45 seconds 4 The unit should now be reset to partial factory default settings...

Page 212: ...it is reset to default configuration the current configuration is lost and the unit reboots causing loss of service To reset the unit to factory defaults without resetting the country of operation follow the procedure in Resetting to default configuration no country reset on page 7 25 To reset to default configuration including country reset proceed as follows 1 Remove the ODU drop cable from the ...

Page 213: ...ttings including the following Password ptp250 IP address 169 254 1 1 Master Slave Status Slave Country Code is blank 6 To reconfigure the unit follow the instructions in Connecting to the unit on page 6 3 and Using the configuration wizard on page 6 12 When logging into the unit change Password and select Country Code these will be prompted If the power supply is a PIDU the PIDU reset switch WILL...

Page 214: ...anagement PC on page 6 3 2 Connect the management PC Ethernet port to the DATA IN port of the PoE power supply using a standard not crossed Cat5e cable see Connecting to the PC and powering up on page 6 5 3 Perform a power cycle that is disconnect and then reconnect the PoE power supply to its AC supply 4 Access the web interface within 30 seconds of powering on using default IP address 169 254 1 ...

Page 215: ... operational link if communication is lost or after a lightning strike The following topics are described in this chapter x Testing link end hardware on page 8 2 describes how to test the link end hardware either when it fails on startup or after a lightning strike x Testing the radio link on page 8 11 describes how to test the link when there is no radio communication or when it is unreliable or ...

Page 216: ...re check the PoE power supply LED states and use Table 50 to choose the correct test procedure The PTP 250 is supplied with one of two variants of the PoE power supply the 9001GR Figure 6 or the PD7001 Figure 7 Table 50 PoE power supply LED states PoE type 9001GR PoE type PD7001 Go to test procedure PORT Off AC off No power detected on page 8 3 PORT Off AC green blink Incorrect voltage on page 8 3...

Page 217: ... AC Action Remove the power lead from the PoE power supply Test that the the voltage from the AC outlet is within the correct range 100 240 V AC If the voltage is correct report a suspected PoE power supply fault to Cambium Overload or short circuit LED state PoE type 9001GR PORT is on green blink PoE type PD7001 AC is on green steady and PORT is on green blink Meaning There is an overloaded or sh...

Page 218: ...ove it 4 Test that test point P1 on the LPU PCB corresponds to pin 1 on the RJ45 Repeat for points P2 to P8 This test is only valid if both the PoE power supply and the ODU are disconnected 5 Reconnect the ODU cable to the DATA POWER OUT port 6 Check that the PWR LED near the top right of the LPU PCB is illuminated to indicate power in the Ethernet cable 7 If any test fails replace or repair the c...

Page 219: ...mage Check that the ODU cable resistances are correct as specified in Testing resistance in the ODU cable on page 8 8 Replace it if it is suspect Device ODU detected LED state PoE type 9001GR PORT is on green steady PoE type PD7001 AC and PORT are on green steady Meaning A device ODU is detected at the DATA POWER OUT port Action If in spite of this a fault is suspected in the link end hardware che...

Page 220: ...Testing link end hardware Chapter 8 Troubleshooting 8 6 phn 2510_002v000 Mar 2012 Figure 57 Ethernet packet test flowchart ...

Page 221: ... than 10 in 1 million packets Test ping packet loss Using a computer it is possible to generate and monitor packets lost between the PoE power supply and the ODU This can be achieved by executing the Command Prompt application which is supplied as standard with Windows and Max OS X operating systems To test ping packet loss proceed as follows 1 Ensure that the IP address of the computer is configu...

Page 222: ...rd how many Ping packets have been lost This is reported by Command Prompt on completion of the test The test has passed if the number of lost packets is less than 2 Testing resistance in the ODU cable Perform this task to test the resistances between the RJ45 pins at the PoE power supply end of the ODU drop cable Use the PTP drop cable tester Figure 58 to make testing easier This can be ordered f...

Page 223: ...teps 1 to 4 are resonabaly the same less than one Ohm for shorter cable lengths and no more than a few Ohms different for longer lengths The results will vary due to the different number of twists each pair has The resistance values given in Table 52 are for guidance The maximum DC resistance for each pair should not exceed 1 4 0 188 cable length in meters PASS or FAIL 6 Measure the resistance bet...

Page 224: ...E drop cable Cable length ODU to PoE power supply Resistance Ohms between pins 1 2 3 6 4 5 and 7 8 0 meters 0 feet 1 3 10 meters 33 feet 3 20 meters 65 feet 5 30 meters 100 feet 6 5 40 meters 130 feet 8 50 meters 165 feet 10 60 meters 200 feet 12 70 meters 230 feet 13 80 meters 260 feet 15 90 meters 300 feet 17 100 meters 330 feet 18 5 ...

Page 225: ...Link Status on the System Summary page 2 Check that the firmware at each end of the link is the same version 3 Check Range and Transmit Power 4 Check Master Slave Mode for each unit and ensure that one unit is Master and the other unit is Slave 5 Check that the link is not obstructed or the ODU misaligned 6 Use the Channel Status web page at each end of the link to confirm that there is a quiet wi...

Page 226: ...k the number of retries An excessive number of retries 10 could indicate a problem Refer to Checking the retry histogram on page 7 20 5 Use the Diagnostics Plotter to check reported Receive Power at either end of the link Ensure that this matches the predicted value from LINKPlanner Refer to Using the diagnostics plotter on page 7 21 Radio and television interference If a PTP 250 unit is interferi...

Page 227: ...ower ETSI European Telecommunications Standards Institute FAQ Frequently Asked Question FIPS Federal Information Processing Standard HTTP Hypertext Transfer Protocol ID Identity IEEE Institute of Electrical and Electronic Engineers IP Internet Protocol ISM Industrial Scientific and Medical ITPE Initial Transmit Power Estimate LAN Local Area Network LOS Line of Sight clear line of sight and Fresnel...

Page 228: ... Echo Request PTP Point to Point QAM Quadrature Amplitude Modulation RAM Random Access Memory RF Radio Frequency RSSI Received Signal Strength Indication SELV Safety Extra Low Voltage SMTP Simple Mail Transport Protocol SNMP Simple Network Management Protocol STP Shielded Twisted Pair STP Spanning Tree Protocol TCP Transmission Control Protocol TDD Time Division Duplexing URL Universal Resource Lo...

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Cambium Networks PTP 250, User Manual

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