Cambium PTP Wireless Setup

Cambium PTP (Wireless Setup)

The purpose of this project is to install Cambium PTP (Point-to-Point) 800 series. The project will also build 6 tents as well as installing 2 generators to enhance smooth operation of the Cambium PTP. Cambium PTP is an excellent microwave solutions and wireless devices for service providers as well network operators. The Cambium PTP is also an innovative technology that delivers a reliable, secure and cost effective connectivity.

Specification

The project chooses the Cambium PTP 800 series for the installation process. The PTP 800 is the wireless broadband solutions with RF (radio frequency). The Cambium PTP 800 series are designed with Ethernet bridging on the point-to-point microwaves links with licensed bands between 6 GHz and 38 GHz.

Key features

The key features of the PTP (Point-to-Point) 800 Series are as follows:

Link capacity between 10 Mbps and 368 Mbps in each direction.

Configurable channel bandwidths between 7 MHz and 80 MHz (ETSI and FCC).

Fixed modulation modes between QPSK and 256 QAM.

Hot Standby 1+1 link protection.

Receive Spatial Diversity.

Effective QoS (quality of service) with Layer 2 or Layer 3 eight queues and classifications.

Ultra-low latency of 64 byte frames with

A separate RF unit with a separate RF unit and split mount architecture for outdoor or indoor.

Mounted IRFU (Indoor Radio Frequency Unit) indoor solution with 19" rack.

Out-of-band or in-band or network management.

Linking with the PTP LINK Planner.

Wireless connections of approximately 124 miles (200km) within the line-of-sight conditions and approximately 6 miles (10km) within non-line-of-sight conditions.

True NLOS (non-line-of-sight) operation using a combination of MIMO (Multiple-Input Multiple-Output) and OFDM (Orthogonal Frequency Division Multiplexing).

Ability to coexist with other users using ATPC (Automatic Transmit Power Control), Antenna beam shape, Spectrum Management functionality.

High link availability using adaptive modulation techniques to reduce data in adverse or severe conditions

Integration high sensitive antenna to improve signal recovery,

Radio systems operating at ultra-fast digital signal processors and being controlled by updateable firmware.

Management using IPv4 and IPv6 interfaces with a built-in web-server for radio signal diagnosis and advanced management capabilities.

A wide range of security features used to prevent non-authorized access to data. Security features include:

AES (Advanced Encryption Standard) encryption to secure data transmitted over the wireless using 128-bit or 256-bit encryption keys.

TLS/HTTPS security system over the web-based management interface.

SNMPv3 with SHA1 authentication and AES privacy,

Remote authentication RADIUS (Dial-in User Service) system.

Installation Procedures

This section discusses the strategy to carry out the installation process of PTP 800 series; the PTP installation 800 series involves several steps.

The tools and equipment necessary for the installation are as follows:

Equipment for the Installation

Required Tools

CMU

PZI (Pozi screw driver)

5 mm diameter of ground lug crimp tool

8 mm spanner

Direct Mount ODU

Lubricant (supplied)

Remote Mount

Allen key (available in the kit)

Hanger, Flexible Wave Guide

13 mm spanner,

5 mm Allen key,

6 mm Flat bladed screw driver,

PZ2 (Pozi screw driver)

Coupler

6 mm Allen key,

3 mm and 2.5mm and Allen keys,

Lubricant .

Antenna

17 mm spanner

7 mm spanner used for tapering transition,

Voltmeter and BNC lead,

Compass and GPS meter .

Cable

Cable cutters,

Cable hoist,

Flat file necessary to dress the cable inner core,

Wire brush used to comb the braid,

Crimp tool Cambium (part 66010063001) Torque wrench.

Cambium PTP Antenna

Cambium PTP antenna is very essential for the tracking solution as well as assisting in enhancing wireless mobile communication. The antenna assists users to communicate over a long distance of approximately 200km using a wireless connection. Typically, the Cambium PTP enhances easy communication for organizations, railroads, and military organizations. The Cambium PTP also assists in transmitting data from remote locations. The next section discusses the strategy to mount and install the Cambium PTP antenna.

Connecting and Mounting Antennas

Tools and equipment to connect amount antenna are as follows:

Top LPU and ODU mounted on pole.

Accessories and antenna

Lifting equipment

Spanners

Tools to mount the antennas

Procedure:

Mount the antenna(s) to achieve spatial diversity.

Mount antenna with Horizontal Polarization,

Connecting antenna to the ODU and cables of any type such as "LMR100, LMR200, LMR300, LMR400 or LMR600."

Connecting the interface of ODU to the polarization antenna horizontal.

Fig 1: Connecting and Mounting the Antennas

Assembling of the LSXL or Polyphaser LSXL-ME if the ODU will be mounted indoors,

Install lightning arrestors near the building entry point if the ODU will be mounted indoors as being revealed in Fig 1

Install drips loops near the lower end of the cables to protect water from entering connectors.

If the ODU is to be mounted outdoors, there is a need to protect the connectors with weatherproof,

There is also need to protect the antenna with weatherproof unless the manufacturer states otherwise.

As being revealed in Fig 2, it is also necessary to ground the cable at the correct point to the supporting structure. The antenna cable should be grounded at the correct point within 1 foot (0.3 meters) of the ODU and antennas using the Cambium grounding kit of the part number 01010419001.

Using the site approved methods; there is a need to dress the antenna cables to the supporting structure.

Fig 2: Ground and Mounting the Antenna Cables

Installation of the top LPU and ODU

The LPU (Lightning Protection Unit) and ODU (integrated or connectorized) involves the following procedures:

Safety precaution

It is critical not to mount ODU on poles with diameter greater than 3" (75mm) or diameter less than 2" (50mm).

Integrated lifting eye should be in proper functioning and should not be damaged to exposed user to a shock,

Rear bracket strap should not be reversed

It is critical not to remove the pre-fitted mounting bracket.

To connect ODU, it is critical to select a mounting position to give it maximum protection. To minimize cable loss, there is a need to select a good position to minimize the antenna cable length and the ODU should not be mounted at the midpoint in-between antenna.

Preparation to Mount the top LPU and ODU

Equipment and Tools to mount the top LPU and ODU are as follows:

ODU

Mounting pole.

LPU End Kit PTP600 (Cambium part number WB2907D).

Lifting equipment.

Spanners.

Procedure to Mount the top LPU and ODU

Attaching the ODU strap to the pole using M8 coil washers, M8 flat washers, M8 x 70 mm or M8 x 40 mm bolts.

The LPU must be vertical with the cable and entry holes facing downwards.

Tightening to ascertain the assembly grips.

Using the integral safety loop in order to hoist the ODU to the bracket. (Cambium Networks, 2013

Connecting and grounding top LPU and the ODU

Preparation -- Tools and Equipment:

Top LPU and ODU mounted on the pole.

Back-to-back cable connected with glands and RJ45 connectors at both ends of the LPU End Kit,

PTP600 with the Cambium part number WB2907D

Grounding cables being connected to ODU.

Anti-oxidant compound.

Weatherproofing used for grounding points.

Spanner.

Procedure

Connecting the PIDU port of the ODU to the end of the back-to-back cable.

Connecting the top of LPU to the small plug of the ODU ground cable.

Connecting the large lug of the ODU ground cable to the supporting structure of the grounding point fixed within 1ft (0.3 meters) of the ODU bracket.

Weatherproofing the N type Connector

Weatherproofing is very essential to protect connector from the weather damage. Exposure of the connector to harsh weather could diminish the communication power of the Cambium PTP. Weatherproofing is very critical to enhance the seamless communication of Cambium PTP. Procedure of weatherproofing is discussed below:

Equipment and Tools for Weatherproofing

Use RF cables and N type connectors with the external antenna installed with connectorized ODU.

Torque wrench.

PVC tape and Self-amalgamating.

N type connectors to be tightened using a set of 1.7 Nm or 15 lb in and torque wrench.

Procedure for Weatherproofing

Using a 0.75-inch (19 mm) PVC tape to wrap the connection. Avoid making wrinkles; make the wrapping to cover the LPU.

For the smooth tape edges:

Cut 5 inches (125mm) length of rubber tape and expand the tape's width to wrap the cable and connector completely.

Pressing the tapes edge completely together to ensure that there is a gap and the tape should extend 1 inch (25mm) beyond the PVC tape.

Wrapping a layer of 2 inch (50 mm) PVC tape from top to bottom and starting from 1 inch (25 mm) below the edge of the tape, and overlapping it at half width.

Repeat the process with four layers of 0.75-inch (19mm) PVC tape, and overlapping at half width.

Moreover, Wrap the layers within the alternate directions:

Top to bottom: second layer.

Bottom to top: third layer.

Top to bottom: fourth layer.

Bottom to top: fifth layer.

The bottom edge of each layer needs to be in 1 inch (25 mm) below the previous layer.

Grounding and Installing the IF Cable

Hoisting cable safety for tower provides a permanent support to enhance mechanical connection to antenna. The correct hoisting grip for the cable of Cambium is to use the crimp tool of part number 243333.

However, the following precaution is essential for hoisting the cable:

Only use one cable for the hoisting grip.

Use hoisting grips of no more than 200 ft (60m).

Using the proper hosting grip for the installation.

Avoid reusing hoisting grips because used grips have already lost its elasticity, and become weakened.

Reusing a hosting grip may cause the cable to break, slip, or fall.

Procedure

Attaching the N type connector on top of the main IF cable,

Protect the N type connectors from the weather using PVC tape,

Using the cables ties, attaching the main cable to the supporting structure,

Ground the cable at the specific points at the tower format. (See Fig 3).

Fig 3: Grounding IF Cable on a Tower or Mast

Grounding an IF Cable

This section discusses the method to connect cable to the metal using a cable grounding kit.

The cable grounding kit of 1/4" and 3/8" cable contains the following components:

1 x grounding cable and 2 hole grounding lug fitted (M10)

1 x self Amalgamating tape

1 x PVC tape

3 x tie wraps

2 x bolt, nut and washer.

Procedures

Precaution: Always install the ground cables pointing down towards the ground, and without drip loops.

To ground the Cable of Cambium grounding kit of the part number (01010419001), it is necessary to follow the following instruction.

Remove 2.5 inches (60 mm) of the outer jacket of the IF cable.

Cut 1.5 inches (38 mm) of PVC rubber tape, fit to the ground, and wrap the tape completely around the cable and lug.

Testing the IF cable and ODU

This section describes the method to carry the pre-power tests on the IF cable. ODU and LPUs.

Test equipment

Use an RF cable analyzer to confirm that the installed cable between the CMU and the ODU has the correct loss.

Use an RF cable analyzer to confirm that cable does not have any open or short circuits.

The equipment could easily locate the fault if the cable is faulty.

The cable analyzer is revealed in the Fig 4 below

Fig 4: Cable Analyzer

The cable testing is revealed in Fig 5 using the cable analyzer equipment.

Figure 5: Cable Test Procedure

To prepare the power testing, the procedures are as follows:

Connect the first LPU to the analyzer (Fig 5).

Connect the second LPU to the first LPU (Fig 5).

Disconnect the second LPU from the cable, which leads to the ODU (Fig 5) (The ODU and the second LPU are reconnected during testing).

Power on the RF analyzer.

Then, perform the following tests:

Testing cable loss.

Testing cable loss

This section is used to carry out the test to ascertain the acceptable limit of the cable loss. The procedures to measure cable loss are as follows:

At the mode of the cable analyzer, select the 'cable loss-one port'.

Set the frequency for measurement to:

F1 = 350 MHz

F2 = 400 MHz.

With the correct calibration kit, calibrate the instrument at the selected frequencies,

Obtaining the plot of cable loss before connecting the ODU. Checking that cable loss is within the expected range. Table 1 provides the expected cable loss.

Table 1: Acceptable Cable Loss

Cable Length in (meters)

Cable Loss at range (+/- 10%)

MHz (dB)

Cable Loss at range (+/- 10%)

with fitted two Lightning

Protection Units @ 350 MHz (dB)

1

0.08

0.3

2

0.15

0.37

3

0.23

0.45

4

0.31

0.53

5

0.39

0.61

6

0.46

0.68

7

0.54

0.76

8

0.62

0.84

9

0.69

0.91

10

0.77

0.99

20

1.54

1.76

30

2.31

2.53

40

3.08

3.3

50

3.85

4.1

7.7

7.92

Installing antennas and IRFUs

Tools for IRFU installation

Item

Required specifications

Where used

Screwdriver

Phillips #2 ( medium tip)

Throughout

Allen key

#8-32 screws for socket-head

Used to connect the waveguide to the IRFU

Multimeter

With ohm meter

Used to connect the IFRU to the CMU

Miscellaneous tools for the Installation of connectors to coaxial cable

Detail in manufacturer documentation

SMA connectors for Torque wrench

5/16, set to 9.0 lb-inch (0.1 kg•m )

Preparing Network Connections

This section provide the method to connect cable to the CMU router ports.

Procedure

Connecting the port copper (CMU Data) to the network, connect the SFP GigE (CMU Fiber) Sport to the network, connecting the network to the CMU Management,

Connecting the CMU to the fiber cables.

Project Implementation

This section provides the project implementation for the installation of the Cambium PTP 800.

Cost of Cambium PTP 800= $2,808.00