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Nautel XR6 Preinstallation Manual

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XR6/XR3 Transmitter
Pre-installation Manual
Document: XR6/XR3-PREINST
Issue:
3.0 2009-07-15
Status:
Preliminary

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  • Page 1 XR6/XR3 Transmitter Pre-installation Manual Document: XR6/XR3-PREINST Issue: 3.0 2009-07-15 Status: Preliminary...
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  • Page 3 The comparisons and other information provided in this document have been prepared in good faith based on publicly available information. The reader is encouraged to consult the respective manufacturer's most recent published data for verification. © Copyright 2009 NAUTEL. All rights reserved.
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  • Page 5: Table Of Contents

    XR6/XR3 Pre-installation Manual Table of contents Contents About this manual About safety xiii Safety precautions Description Capabilities Options Pre-installation tasks Preparing for installation Selecting a location for the transmitter Installing an antenna feedline Physical requirements Clearances Dimensions Weights Cooling requirements...
  • Page 6 External 10 MHz frequency reference RF output requirements Antenna feed cable Antenna system Parts and tools Contacting Nautel Parts supplied by Nautel Parts not supplied by Nautel Parts ordering Module replacement program Tools for installation Accessories 10-1 Contacting Nautel 10-1...
  • Page 7 XR6/XR3 Pre-installation Manual Pre-installation assistance 11-1 Pre-installation consulting 11-1 Installation and commissioning service 11-1 Online documentation 11-3 On-site support 11-3 Training 11-3 Standard warranty 11-4 Extended warranties 11-7 List of terms 12-1 Index IX-1 Issue 3.0 2009-07-15 Page vii...
  • Page 8 XR6/XR3 Pre-installation Manual Page viii Issue 3.0 2009-07-15...

  • Page 9: About This Manual

    XR6/XR3 Pre-installation Manual About this manual This manual provides information about preparing for the delivery and installation of an XR6/XR3 transmitter. This manual is intended for use by field technicians, site managers, and installation planners. Using this manual Read the task list provided in Section 2, “Pre-installation tasks”...
  • Page 10 The Nautel website provides useful resources to keep you up to date on your XR6/XR3. Nautel User Group (NUG) The website includes a special section that customers can log into in order to access the Nautel customer newsletter, product manuals, frequently asked questions (FAQ), information sheets, and information about field upgrades.
  • Page 11 XR6/XR3 Pre-installation Manual When using printed documents: • To find keywords, go to the Index section at the end of the manual. • To find a specific term, go to the List of Terms section near the end of the manual.
  • Page 12 XR6/XR3 Pre-installation Manual Page xii Issue 3.0 2009-07-15...

  • Page 13: About Safety

    XR6/XR3 Pre-installation Manual About safety All Nautel transmitters are designed to meet the requirements of EN60215, Safety Requirements for Radio Transmitters. The philosophy of EN60215 is that the removal of any cover or panel that can only be opened using a tool is a maintenance activity, and that any person performing a maintenance activity is expected to be trained for that activity.
  • Page 14 XR6/XR3 Pre-installation Manual Lightning hazards Before opening the transmitter and touching internal parts, remove and solidly ground the antenna connection. WARNING: It is not enough to ground the antenna terminal with the antenna still connected. Even a small impedance in the ground strap will result in lethal voltages during a lightning strike.

  • Page 15: Safety Precautions

    Personnel must be familiar with the transmitter, so that they can avoid physical danger, and be aware of hazards to themselves and the equipment. Nautel offers a number of training courses covering the basic fundamentals of RF systems and transmitters, and the operation and maintenance of the transmitter. For more information about available courses and schedules, go to the Nautel website at http://www.nautel.com/Training.aspx,...
  • Page 16 Operation of safety interlocks (if installed) First aid Nautel does not offer first aid training, since the hazards associated with high voltage and RF energy are not specific to the transmitter. However, the customer should provide first aid training to all per- sonnel who have access to the transmitter site.
  • Page 17 XR6/XR3 Pre-installation Manual Marking hazards Place warning signs close to any hazardous areas or systems (e.g., the feedline or the antenna system). Make the signs large enough that they cannot be missed. Provide signage in all languages used in the region.
  • Page 18 (and to protect the rest of your site equipment and your personnel). For detailed information about lightning protection, see the Nautel Site Preparation Manual, available from your Nautel sales agent, or online from the Nautel website.
  • Page 19 XR6/XR3 Pre-installation Manual Earthquake protection If the transmitter site is in a region that experiences any noticeable earthquake activity, take steps to prevent the transmitter from shifting or rocking during an earthquake. Even during minor earthquakes, rocking or movement of the transmitter is likely to damage the feedline connection, and could even cause a catastrophic failure of the ac power feed into the transmitter.
  • Page 20 XR6/XR3 Pre-installation Manual Page xx Issue 3.0 2009-07-15...

  • Page 21: Description

    Capabilities Power The XR6/XR3 is rated (with 140% positive peak modulation) for an RF output of 6 kW (XR6) or 3 kW (XR3) and capable (with 120% modulation) of RF outputs up to 7.5 kW (XR6) or 3.75 kW (XR3).

  • Page 22: Options

    Exciters • Cooling fans * The standard XR6/XR3 transmitter configuration contains one RF power module. A second RF power module is optional. Ac power The XR6/XR3 variable power transformer can be set to use a range of input voltages and power frequencies, as described in Section 2, “Installing the power transformer”...
  • Page 23 XR6/XR3 Pre-installation Manual Description NxLink An optional NxLink module provides an Ethernet interface between the XR6/XR3 and a LAN (local area network). This interface allows remote control and monitoring of the XR6/XR3 from a computer . Safety interlocks Optional safety interlocks prevent unsafe access to the transmitter until the ac power is removed.
  • Page 24 XR6/XR3 Pre-installation Manual Description Page 1-4 Issue 3.0 2009-07-15...

  • Page 25: Pre-Installation Tasks

    5-1. Be aware of lightning protection issues when installing ac power. Lightning protection is essential to protect both personnel and equipment at your site. Refer to the Nautel Site Protection Manual. 5. Install lightning protection on the antenna tower. Refer to the Nautel Site Protection Manual.

  • Page 26: Selecting A Location For The Transmitter

    13. If you are going to use an external frequency reference, ensure that the reference source meets required specifications. 14. Prepare to integrate the XR6/XR3 transmitter into your station control circuitry, if required. 15. Train your station technicians and operators on the use and maintenance of the XR6/XR3 transmitter. Selecting a location for the transmitter...

  • Page 27: Installing An Antenna Feedline

    Pre-installation tasks Installing an antenna feedline When installing an antenna feedline for the XR6/XR3 transmitter, perform the following tasks: 1. Ensure that the RF feedline that will connect the transmitter and the antenna system has a suitably rated coaxial cable.
  • Page 28 XR6/XR3 Pre-installation Manual Pre-installation tasks Page 2-4 Issue 3.0 2009-07-15...

  • Page 29: Physical Requirements

    XR6/XR3 Pre-installation Manual Physical requirements Section 3: Physical requirements This section provides physical specifications for the XR6/XR3 transmitter and its components, and lists physical site requirements. This section includes the following topics: • Clearances • XR6/XR3 transmitter dimensions - see page 3-2 •...

  • Page 30: Dimensions

    XR6/XR3 Pre-installation Manual Physical requirements Dimensions Figure 3.1: XR6/XR3 transmitter dimensions 184.0 cm (72.5 in) Page 3-2 Issue 3.0 2009-07-15...
  • Page 31 XR6/XR3 Pre-installation Manual Physical requirements Figure 3.2: XR6/XR3 transmitter cabinet – top view Minimum clearance to front of transmitter: 122 cm (48.0 in) 34.8 cm (13.7 in) Front AUDIO & CONTROL WIRING RF OUTPUT AC IN 33.0 cm (13.0 in) 7.1 cm (2.8 in)
  • Page 32 XR6/XR3 Pre-installation Manual Physical requirements Figure 3.3: XR6/XR3 transmitter cabinet, seen from below (looking up) Front 59.0 cm (23.1 in) Transformer Anchor Points AC IN 3.81 cm dia (1.5 in) 8.5 cm (3.35 in) Rear 8.5 cm (3.35 in) Page 3-4...

  • Page 33: Weights

    Physical requirements Weights Table 3.1 for the various weights of transmitter components, including crated and uncrated weights. Table 3.1: XR6/XR3 Weight of components – Includes 1 RF Power Module Crate contents Uncrated weight Crated weight 125 kg (275 lbs) Main cabinet...
  • Page 34 XR6/XR3 Pre-installation Manual Physical requirements Page 3-6 Issue 3.0 2009-07-15...

  • Page 35: Cooling Requirements

    Heating - see page 4-3 Air flow in the transmitter The XR6/XR3 uses redundant cooling fans and hot-air convection to ensure effective cooling. Cool air is drawn in through a filter in the lower portion of the back of the transmitter. Air circulates into the base of the transmitter, and is then pushed up through the front rack of the transmitter by a set of fans.

  • Page 36: Cooling

    Example: At 1600 m (1 mile) above sea level, maximum ambient temperature should not exceed 40.4ºC (104.7°F). Ensure that hot air from the transmitter is not drawn back into the transmitter’s cool air intake. Cooling plant requirements Table 4.1: Cooling plant requirements for the XR6 Air conditioning Transmitter Waste heat...

  • Page 37: Heating

    XR6/XR3 Pre-installation Manual Cooling requirements Calculating BTU cooling requirements To determine the number of British thermal units (Btu) being generated per hour as waste heat, multiply the average RF output power (in watts) by 0.19 (the heat factor at rated power) and then multiply the product by 3.413.
  • Page 38 XR6/XR3 Pre-installation Manual Cooling requirements Page 4-4 Issue 3.0 2009-07-15...

  • Page 39: Electrical Requirements

    Do not attempt to perform these activities unless you are a certified electrician. Refer to the Nautel Site Protection Manual for information about requirements associated with lightning protection. Electrical power The transmitter is preconfigured to operate from a 50/60 Hz, 3-phase (3-wire plus ground, Wye or closed delta)or 1-phase (2-wire plus ground) ac power source.
  • Page 40 1-phase Power consumption When operating at 6 kW (XR6) or 3 kW (XR3) with 100% modulation by a continuous sine wave, power consumption is approximately 10.8 kW (XR6) or 5.4 kW (XR3). When operating at 6 kW (XR6) or 3 kW (XR3) with no modulation, power consumption is 7.2 kW (XR6) or 3.6 kW (XR3).
  • Page 41 XR6/XR3 Pre-installation Manual Electrical requirements A surge protector panel containing suitably rated varistors is available from Nautel. Install the surge protector panel close to the station reference ground, and as close as possible to the ac service entrance. The ac power source usually has the lowest impedance path to ground during a lightning strike and normally carries most of the lightning-induced current away from the transmitter site.

  • Page 42: Station Reference Ground

    3-3)or the rear side of the bottom panel (see Figure 3.3 on page 3-4). Ensure that the transmitter site’s grounding rods are adequate. For more information about electrical grounding protection, see the Nautel Site Protection Manual. Page 5-4 Issue 3.0 2009-07-15...

  • Page 43: Control And Monitoring

    LAN interface (NxLink) - see page 6-13 Controls The XR6/XR3’s graphic user interface (GUI) lets you control a number of transmitter functions and set parameters and schedules. (For detailed information about the GUI, refer to the XR6/XR3 Operating and Maintenance Manual.) In addition, you can control the on/off status, the active (A/B)
  • Page 44 315 V, 190 V and 115 V. For three-phase XR3 transmitters, there are two B+ voltage levels: 220 V and 115 V. For single-phase XR6 transmitters, there are four B+ voltage levels: 315 V, 196 V, 115 V and 69 V. For single-phase XR3 transmitters, there are four B+voltage levels: 220 V, 196 V, 115 V and 69 V.
  • Page 45 Output network faults High DC current This alarm is triggered when the dc current goes above approximately 41 A (XR6) or 21 A (XR3). High RF current This alarm is triggered when the RF current exceeds the factory-set alarm threshold.
  • Page 46 XR6/XR3 Pre-installation Manual Control and monitoring RF driver fault This fault indicates a problem with the RF drive on the current exciter. If the exciter transfer function is set to auto, then the microcontroller will attempt a changeover to the other exciter. If it cannot, or if the exciter transfer function is set to manual, then this fault will cause a shutback.
  • Page 47 RF Power module faults PM Fault A or B* • A fault is being reported by power module A or B. A second RF power module is optional with an XR6 or XR3 transmitter. Note: Other faults Low backup battery This fault indicates that the backup battery voltage has fallen below an acceptable level.
  • Page 48 XR6/XR3 Pre-installation Manual Control and monitoring The backup battery should be replaced while ac power is . If the ac power faults, without adequate backup battery power, then the log files will be lost. CAUTION: Do not wait for an extended period to replace the batteries. The control/monitor PWB’s microcontroller may not retain its settings if ac power is turned off when...

  • Page 49: Remote Control Circuits And Alarms

    XR6/XR3 Pre-installation Manual Control and monitoring Remote control circuits and alarms You can control the active (A/B) exciter, the on/off status of the RF power stage, the preset RF power level, the power level adjustment, and system alarm reset remotely. The remote interface PWB contains a selection circuit that lets you select internal (single ended input) or external (differential input) input for all controlled functions.
  • Page 50 XR6/XR3 Pre-installation Manual Control and monitoring When you use an external dc voltage (24 V to Option 2 - Differential Input (External V dc). 30 V) as the current source for a control function's opto coupler, configure the control function's external switching circuit and the remote interface PWB’s selection circuit for a differential input.
  • Page 51 XR6/XR3 Pre-installation Manual Control and monitoring • TB2-6 (-): PDM INHB terminal. Continuous active signal inhibits the PDM by causing a shut- back. This also works when the remote/local status is set to local. • TB1-1 and TB1-2: EXT INTLK terminals. A short circuit between the pins for normal operat- ing status, an open between these pins causes a shutback.
  • Page 52 XR6/XR3 Pre-installation Manual Control and monitoring • TB1-14 (-): EXCITER A terminal. Causes a changeover to select exciter A as the main exciter. Setting is saved in current preset. Provide an active pulse to select this exciter. • TB1-16 (-): EXCITER B terminal. Causes a changeover to select exciter B as the main exciter.
  • Page 53 XR6/XR3 Pre-installation Manual Control and monitoring • J3-13: Pwr Mod Fail. One or more power modules has a fault. • J3-12: Low B+. See “Low B+ voltage” on page 6-2. • J3-11: High VSWR. See “High VSWR shutback” on page 6-3.

  • Page 54: Remote Performance Monitoring

    Forward power level. voltage is a pure square law function and will be 3.9 ± 0.5 V when the forward power is 6.5 kW (XR6) or 2.8 ± 0.5 V when the forward power is 3.3 kW (XR3). The monitoring circuit’s impedance must be greater than 1,000 ohms.

  • Page 55: Lan Interface (Nxlink)

    LAN interface (NxLink) A serial port is available on 9-pin D-sub connector J12 of the XR6/XR3’s remote interface PWB. This port allows you to remotely control and interrogate the XR6/XR3’s operational status. If the NxLink Ethernet interface module option is installed and you wish to use it as the remote interface, connector J12 is linked to Port 1 of the NxLink module.
  • Page 56 XR6/XR3 Pre-installation Manual Control and monitoring Page 6-14 Issue 3.0 2009-07-15...

  • Page 57: Other Considerations

    XR6/XR3 Pre-installation Manual Other considerations Section 7: Other considerations This section describes other considerations regarding the XR6/XR3 transmitter. • External RF drive source • External 10 MHz frequency reference - see page 7-2 External RF drive source You can apply an externally generated RF drive (carrier frequency only) to the remote interface board’s digital EXT RF IN BNC connector (J6).

  • Page 58: External 10 Mhz Frequency Reference

    XR6/XR3 Pre-installation Manual Other considerations Installing an external RF drive source 1. If the RF drive for one or both exciters is to be applied from an external source, connect its wiring as follows: – Route RF drive coaxial cable through a cable entry hole in the cabinet and through the ferrite toroid, to the vicinity of the remote interface PWB.

  • Page 59: Rf Output Requirements

    • Antenna system - see page 8-3 For detailed information about protecting the transmitter system from antenna lightning strikes, see the Nautel Site Protection Manual. Antenna feed cable Maximum voltage The maximum voltage at the transmitter’s connection to a 50 Ω load is 2,617 V peak, when operating at 6 kW (1,851 V peak at 3 kW), with 125% modulation.
  • Page 60 XR6/XR3 Pre-installation Manual RF output requirements A frequent cause of breakdowns at an insulator surface is the junction Three-material junctions: of three materials: a metal conductor, a solid insulator, and a gas insulator. The insulators form a capacitive RF divider between the metal conductor and the grounded periphery. Since the dielectric constant of the solid is higher than the gas (air), the high voltage stress is concentrated on the air.

  • Page 61: Antenna System

    IBOC. This requires information about phase versus frequency for Hermitian symmetry at the power amplifier. The information will be provided with the transmitter at time of shipment. For information about your transmitter’s RF phase, contact Nautel Customer Support. Issue 3.0 2009-07-15...
  • Page 62 XR6/XR3 Pre-installation Manual RF output requirements Page 8-4 Issue 3.0 2009-07-15...

  • Page 63: Parts And Tools

    Parts supplied by Nautel Ancillary parts kit An ancillary parts kit is shipped with the XR6/XR3. This kit contains hardware needed during the installation process. The kit includes toroids, spare fuses, screws and other miscellaneous hardware. Issue 3.0 2009-07-15...

  • Page 64: Parts Not Supplied By Nautel

    See “XR6/XR3 transmitter manuals” on page ix. Parts not supplied by Nautel Some parts and materials required to complete installation are not supplied by Nautel. The parts you need vary with the installation requirements. The list of parts you normally provide yourself during installation include: A suitable 50 Ω...

  • Page 65: Tools For Installation

    XR6/XR3 Pre-installation Manual Parts and tools Tools for installation The tools you need during transmitter installation include the following: • Digital voltmeter • Philips screwdrivers, sizes #1 and #2 • Pliers • Wire cutters • Slot screwdriver, 5 mm (3/16 inch) •...
  • Page 66 XR6/XR3 Pre-installation Manual Parts and tools Page 9-4 Issue 3.0 2009-07-15...

  • Page 67: Accessories

    XR6/XR3 Pre-installation Manual Accessories Section 10: Accessories This section describes accessories and optional equipment for the XR6/XR3 transmitter. Accessories include the following: • Ac line surge protection • Automatic antenna transfer control unit - see page 10-2 • Automatic switching system - see page 10-4 •...

  • Page 68: Automatic Antenna Transfer Control Unit

    Nautel offers an ac line surge protection panel, which is suitable for use with the XR6/XR3 transmitter. (Various versions are available, depending on your ac configuration and supply voltage.) However, you can use any surge protector with at least a 1,500...

  • Page 69: Rf Contactor

    XR6/XR3 Pre-installation Manual Accessories Figure 10.1: Automatic antenna transfer control unit RF contactor The RF contactor is an RF output switching device for a main/standby control cabinet that interfaces main and standby transmitters (less than 15 kW RF output power) between an antenna and a dummy load.

  • Page 70: Automatic Switching System

    Accessories Automatic switching system The automatic switching system is a changeover rack for the XR6/XR3 that includes an automatic antenna transfer control unit and an RF contactor. The main component of the automatic switching system is a double-pole, double-throw latching switch.
  • Page 71 XR6/XR3 Pre-installation Manual Accessories RF Module testing cable and test load The RF module testing cable allows bench testing and troubleshooting of RF power modules using a direct connection to the transmitter. The test cable provides a temporary connection from the transmitter to an RF power module that has been removed from the transmitter and placed on a workbench.
  • Page 72 XR6/XR3 Pre-installation Manual Accessories Plug-in power modulator unit The power modulator unit is a 2,000 watt plug-in unit compatible with all XR series transmitters. Figure 10.5: Power modulator unit Page 10-6 Issue 3.0 2009-07-15...

  • Page 73: Pre-Installation Assistance

    Extended warranties - see page 11-7 Pre-installation consulting Nautel field support specialists are available to answer questions and work with you to ensure that your site will be ready for the installation of your XR6/XR3 transmitter. For support, contact Nautel Cus- tomer Service and request assistance (see “On-site support”...
  • Page 74 – 50 Ω test load (rated for 150% of carrier power, VSWR less than 1.1:1) Nautel’s service representative takes full responsibility for commissioning the transmitter, validating all external interfaces (i.e., the ac supply, RF output, remote control and monitoring equipment) and checking out the equipment prior to activation.

  • Page 75: Online Documentation

    Nautel training programs are made up of individual modules that can be mixed and matched to meet the customer’s specific training needs. All Nautel training courses are available at the Nautel Training Center.

  • Page 76: Standard Warranty

    Nautel for repair. The repairs will be made without charge to the Customer. 4. Where warranty replacements or repair are provided under items 2 or 3, Nautel will pay that part of the shipping costs incurred in returning the part/assembly to the Customer.
  • Page 77 7. Nautel shall have the privilege of investigating whether failures have been caused by factors beyond its control. 8. Nautel shall in no event be liable for any consequential damages arising from the use of this equipment. 9. When requesting a warranty repair/replacement, please provide complete and accurate information.
  • Page 78 Pre-installation assistance Module exchange service In order to provide Nautel customers with a fast and efficient service in the event of a problem, Nautel operates a factory rebuilt, module exchange service which takes full advantage of the high degree of module redundancy in Nautel equipment. This module exchange service is operated from Nautel's factory in Bangor, Maine and Hackett's Cove, Nova Scotia.

  • Page 79: Extended Warranties

    Extended warranties Nautel's standard 13-month warranty provides excellent coverage and satisfies most customers’ needs. However, if you want extended coverage, Nautel offers one- and two-year Extended Warranty Plans to cover electrical and mechanical repairs or replacements for all Nautel equipment.
  • Page 80 If Nautel’s service technicians are unable to solve the problem over the telephone, Nautel will give you an RMA number. You then return the module or circuit board to a Nautel service facility, so that Nautel can provide a replacement. Do not ship a component back to Nautel until you have an RMA number.

  • Page 81: List Of Terms

    List of terms Section 12: List of terms This section defines some of the terms that are used in Nautel documentation. Audio Engineering Society/European Broadcasting Union (AES/EBU) is the name of a AES-EBU. digital audio transfer standard. The AES/EBU digital interface is usually implemented using 3-pin XLR connectors (the same type connector used in professional microphones).
  • Page 82 Preset. day and date basis. Exciters can be configured on a preset for a specific operating mode (for example, Exciter A - conventional AM, and Exciter B - IBOC). The XR6/XR3 allows you to pre-program up to six presets. A complete loss of RF output power, caused by any one of a variety of faults, including Shutback.

  • Page 83: Index

    XR6/XR3 Pre-installation Manual antenna transfer control unit (NX1) 10-2 Index antenna tuning assistance, onsite, 11-3 Numerics assistance, technical, 11-1 10 MHz Reference Input BNC connector, audio processing, 4-wire Wye (star) configuration, automatic antenna transfer control unit (NX1) 10-2 AC line surge protection...
  • Page 84 XR6/XR3 Pre-installation Manual external control and monitor wiring, conduit, external DC power supply, connector, RF, external frequency reference, consulting assistance 11-1 external monitoring circuit, 6-10 control and monitor wiring, external monitoring, 6-12 control panel, external RF driver, cooling exhaust, cooling systems,...
  • Page 85 XR6/XR3 Pre-installation Manual modulation 5-2, high voltage RF conductor, modulation monitor, 6-13 modulation, IBOC module testing cable (XR PMTK), 10-5 sideband symmetry moisture damage to insulators, IBOC, monitor wiring, impedance path to ground, monitoring, 6-12 impedance sweep impedance, induced current, lightning,...
  • Page 86 XR6/XR3 Pre-installation Manual RF power, preset, 6-1, power amplifier unit (XR PA), 10-5 room, transmitter, power consumption power consumption, power modulator unit (XR MOD), 10-6 safety interlocks, power service, scheduling onsite support, 11-3 power source shield ground, power switch assembly, 2-1,...
  • Page 87 XR6/XR3 Pre-installation Manual waste heat taps, transformer, waste heat, technical support, 11-1 waveform, RF input voltage, temperature, transmitter room, 6-12 website terminating devices, weight, three material junction, weight, components, tools, work area, toroid, 2-3, workbench, total weight, Wye (star) configuration, Ac power,...
  • Page 88 XR6/XR3 Pre-installation Manual Page IX-6 Issue 3.0 2009-07-15...

  • Page 90: Issue 3.0 2009-07-15

    Toll Free: +1.877.6NAUTEL (6628835) (Canada & USA only) Fax: +1.902.823.3183 Nautel Inc. 201 Target Industrial Circle Bangor, Maine USA 04401 Phone: +1.207.947.8200 Fax: +1.207.947.3693 Customer Service (24 hour support) +1.877.628.8353 (Canada & USA only) +1.902.823.5100 (International) Email: support@nautel.com Web: www.nautel.com © Copyright 2009 NAUTEL. All rights reserved.

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