Cambium Networks PTP 670 Installation Manual
Cambium Networks PTP 670 Installation Manual

Cambium Networks PTP 670 Installation Manual

System release 02-00
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INSTALLATION GUIDE

PTP 670
System Release 02-00

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Summary of Contents for Cambium Networks PTP 670

  • Page 1: Installation Guide

    INSTALLATION GUIDE PTP 670 System Release 02-00...
  • Page 2 Cambium Networks does not assume any liability arising out of the application or use of any product, software, or circuit described herein;...
  • Page 3: About This Guide

    About this guide This guide describes how to install the site equipment for PTP 670 Series links. Users of this guide must follow good practice for outdoor radio installations. In more advanced configurations, there may be one or two additional Ethernet interfaces connected to the ODU: one to the SFP port (copper or optical) and one to the AUX port.
  • Page 4: Rf Exposure Near The Antenna

    Powering down before servicing Before servicing PTP 670 equipment, always switch off the power supply and unplug it from the PSU. Do not disconnect the RJ45 drop cable connectors from the ODU while the PSU is connected to the power supply.
  • Page 5 ODUs and external antennas are not designed to survive direct lightning strike. For this reason they must be installed in Zone B as defined in PTP 670 Series User Guide. Mounting in Zone A may put equipment, structures and life at risk.
  • Page 6: Typical Deployment

    Typical deployment A PTP 670 site typically consists of a high supporting structure such as a mast, tower or building for the outdoor equipment (ODU and optional external antenna); and an equipment building or moisture-proof enclosure for the indoor equipment (PSU), as shown here in a typical mast or tower installation:...
  • Page 7: Odu Variants And Mounting Bracket Options

    The PTP 670 ODU is supplied in two platform variants. The PTP 670 Integrated ODU is attached to a 23 dBi flat plate antenna and is intended for medium to long- range difficult links and traditional backhaul requirements where high capacity and high link budget are required.
  • Page 8 The PTP 670 Connectorized ODU is intended to work with separately mounted external antennas. External antennas generally have higher gains than the integrated antennas, allowing the PTP 670 to cope with more difficult radio conditions. Mounting bracket options The PTP 670 series supports three mounting bracket options. Select the optimum mounting bracket...
  • Page 9: Installing The Odu And Top Lpu

    Installing the ODU and top LPU Attach ground cables to the ODU Fasten one ground cable to each ODU grounding point using the M6 (small) lugs: one is for the top LPU (M6 lug at other end) and the other is for the tower or building (M10 lug at other end). It does not matter which cable goes on which ODU grounding point.
  • Page 10 Tilt Bracket Assembly with band clamps Follow Step 1 for the Tilt Bracket Assembly procedure above. Feed the band clamps (not supplied by Cambium) through the slots in the bracket body. Secure the bracket body to the pole using band clamps, ensuring that the arrow in the body is pointing upwards.
  • Page 11 Mounting bracket (Integrated) Fix the mounting plate to the back of the ODU using the four bolts, and spring and plain washers provided. Ensure that the spring washer is between the bolt head and the plain washer. Tighten the bolts to a torque setting of 5.0 Nm (3.7 lb ft). Attach the bracket body to the mounting plate using the M8 bolt, spring and plain washers.
  • Page 12: Mount The Top Lpu

    Mount the top LPU For separate LPU mounting, use the U-bolt bracket from the LPU kit to mount the top LPU on the pole below the ODU. Tighten to a torque setting of 7.0 Nm (5.2 lb ft): Interconnect and ground the ODU and top LPU Option 1: back-to-back Option 2: separate Mounting pole...
  • Page 13: Install External Antennas For A Connectorized Odu

    LPU directly to the grounding system. Install external antennas for a Connectorized ODU RF cable CAT5e cable Equipment building or cabinet PTP 670 ground cable RF cables to antenna Site grounding system Connectorized Lightning arrestors AC supply...
  • Page 14 Ground the antenna cables to the supporting structure within 0.3 meters (1 foot) of the ODU and antennas using the Cambium grounding kit (part number 01010419001): RF cable PTP 670 ground cable Connectorized ODU Fix the antenna cables to the supporting structure using site approved methods. Ensure that no undue strain is placed on the ODU or antenna connectors.
  • Page 15: Installing The Copper Cat5E Ethernet Interface

    Caution Always use Cat5e cable that is gel-filled and shielded with copper-plated steel. Alternative types of Cat5e cable are not supported by Cambium Networks. Cambium Networks supply this cable (Cambium part numbers WB3175 and WB3176), RJ45 connectors (Cambium part number WB3177) and a crimp tool (Cambium part number WB3211).
  • Page 16 Fit the parts into the body and lightly screw on the gland nut using 24 mm (0.9 in) wrench/spanner (do not tighten it): Connect the drop cable to the ODU (PSU port) and LPU (a) Plug the RJ45 connector into the socket in the unit, ensuring that it snaps home. (b) Fit the gland body to the RJ45 port and tighten it to a torque of 5.5 Nm (4.1 lb ft): (a) Fit the gland nut and tighten until the rubber seal closes on the cable.
  • Page 17: Install The Main Drop Cable

    Disconnect the drop cable from the LPU or ODU Use this procedure if it is necessary to remove an EMC strain relief cable gland and RJ45 connector from the ODU (as illustrated) or LPU. (a) Remove the gland nut. Wiggle the drop cable to release the tension of the gland body. When the tension in the gland body is released, a gap opens at the point show.
  • Page 18 Terminate with RJ45 connectors and glands Caution Check that the crimp tool matches the RJ45 connector, otherwise the cable or connector may be damaged. Thread the cable gland (with black cap) onto the main drop cable. Strip the cable outer sheath and fit the RJ45 connector load bar. Fit the RJ45 connector housing as shown.
  • Page 19: Install The Bottom Lpu To Psu Drop Cable

    Maximum 600 mm (gel-filled, shielded with copper- Bottom LPU (24 inches) plated steel) PSU drop Network CAT5e cable cable AC supply PTP 670 ground cables Site grounding system Building entry Network point terminating equipment LPU to grounding system Grounding system...
  • Page 20 Install the LPU to PSU drop cable Use this procedure to terminate the bottom LPU to PSU drop cable with RJ45 connectors at both ends, and with a cable gland at the LPU end. Warning The metal screen of the drop cable is very sharp and may cause personal injury. ALWAYS wear cut-resistant gloves (check the label to ensure they are cut resistant).
  • Page 21: Test Resistance In The Drop Cable

    Test resistance in the drop cable Connect the bottom end of the copper Cat5e drop cable to a suitable drop cable tester and test that the resistances between pins are within the correct limits, as specified in the table below. If any of the tests fail, examine the drop cable for wiring faults.
  • Page 22: Installing The Psu

    PSU in a position where it may exceed its temperature rating. Caution Do not plug any device other than a PTP 650, PTP 670 or PTP 700 ODU into the ODU port of the PSU. Other devices may be damaged due to the non-standard techniques employed to inject DC power into the Ethernet connection between the PSU and the ODU.
  • Page 23: Installing The Ac+Dc Enhanced Power Injector

    Installing the AC+DC Enhanced Power Injector Follow this procedure to install the AC+DC Enhanced Power Injector (Cambium part number C000065L002C): Mount the AC+DC Enhanced Power Injector by screwing it to a vertical or horizontal surface using the four screw holes (two holes circled): Form a drip loop on the PSU end of the LPU to PSU drop cable.
  • Page 24 Eastern Road, Ashburton, Devon, UK, TQ13 7UP www.cambiumnetworks.com Cambium Networks and the stylized circular logo are trademarks of Cambium Networks, Ltd. All other trademarks are the property of their respective owners. © Copyright 2017 Cambium Networks, Ltd. All rights reserved.

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