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825 Park Street Christiansburg, VA 24073 • TEL (540) 382-04

2 • FAX (540) 381-0392 • USA (800) 732-5252 • [email protected] • www.forceinc.com

Model 2809

LDS CATV Receiver

IOM2809
Revision 2.0, March 2004

Instructions for Installation and Use

Read this manual before installing or using this product.

Observe all safety warnings and cautions.

Copyright © 2004 by Force, Incorporated. All rights reserved. Force, Incorporated reserves the right to make changes
to the product described in this document in the interest of document improvement.

Содержание 2809

Страница 1: ...OM2809 Revision 2 0 March 2004 Instructions for Installation and Use Read this manual before installing or using this product Observe all safety warnings and cautions Copyright 2004 by Force Incorporated All rights reserved Force Incorporated reserves the right to make changes to the product described in this document in the interest of document improvement ...

Страница 2: ...scribes the LDS CATV receiver lists technical specifica tions performance graphs system applications and ordering information Section 2 page 7 Describes the installation of the LDS CATV receiver connec tions and safety precautions Section 3 page 11 Describes the operation of the LDS CATV link trouble shooting and user maintenance A quick reference index completes the user manual Related Documentat...

Страница 3: ...tate within a reasonable time or if subcomponents of the unit have been obsoleted or discontinued then Force has the option to provide an equiva lent unit Exclusions This warranty does not extend to any product that has been damaged due to acts of God accident misuse abuse neglect improper system design or application improper installation improper operation or maintenance or connection to an impr...

Страница 4: ...d s liability shall not include liability for any special indirect or consequential damages or for any damages arising from or attributable to loss of use loss of data loss of good will or loss of anticipated or actual revenue or profit or failure to realize expected savings even if Force Incorporated has been advised of the possibility of such damages This warranty constitutes Force Incorporated ...

Страница 5: ... Receiver Optical Input at 77 Channels 3 Figure 1 4 RF Output Level Behavior of 2809R 4 1 6 Applications 5 Figure 1 5 Private Network Configuration 5 1 7 Ordering Information 5 Section 2 Installation Instructions 7 2 1 General Installation Requirements 7 2 2 Items Provided 7 2 3 Items Required 7 2 4 Inspection 8 2 5 Module Placement 8 2 6 Unit Outline Drawing 8 Figure 2 1 Model 2809 CATVLinx LDS C...

Страница 6: ...1 Theory of Operation 11 Figure 3 1 Model 2809 Block Diagram 11 3 2 Power up and Operation 11 3 3 Measuring RF Input Levels at the Transmitter 12 3 4 Performance Verification 12 3 5 Cleaning 13 3 5 1 Connector Cleaning 13 3 5 2 Connector Handling 14 3 6 Troubleshooting 14 3 7 Repair Service 14 Index 15 ...

Страница 7: ...on system 1 2 FCC Notice The Model 2809 has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and u...

Страница 8: ...fied frequency range The gain flatness is 1 5 dB over this range The flatness is typically less than 0 1 dB over a standard 6 MHz channel bandwidth See Application Note AN123 for additional information on North American Television Frequencies Figure 1 1 In Band Frequency Response Output Return Loss 16 dB Composite Second Order CSO 63 dBc Composite Triple Beat CTB 66 dBc Carrier to Noise Ratio CNR ...

Страница 9: ...timal performance with up to 7 5 dB of optical loss at full channel loading If lower channel loading is used then the link can operate at higher optical losses and still provide exceptional CNR Typical transmitter output is 4 5 dBm so a received optical power of 3 5 dBm corresponds to an optical loss of 8 dB Five curves are plotted the top curve is the typical result when only 5 channels are trans...

Страница 10: ...probably be inadequate for a newly installed design The red regions are outside the recommended operat ing parameters of the 2809R and must be avoided to ensure reliable opera tion 5 This product must be used only with APC type optical connectors or fusion spliced connections There is some folklore which suggests that the only critical backreflection is the one closest to the transmitter Our exper...

Страница 11: ...Configuration 1 7 Ordering Information Part Number Description 2809R SFSP LDS CATV VSB AM Rx SM 1310 1550 nm SC APC Connector 2809R SFAP LDS CATV VSB AM Rx SM 1310 1550 nm FC APC Connector Note The FC APC interface uses the wide key standard This means that the units are optimized for use with FC APC connectors that have a 2 14 mm wide alignment key Nar row key FC APC connectors 2 02 mm may be use...

Страница 12: ...Product Technical Bulletin Model 2809 CATVLinx LDS CATV Receiver 6 Revision 2 0 Notes ...

Страница 13: ...as large power supplies and tube type equipment Observe temperature and relative humidity requirements specified in Section 1 3 page 2 2 2 Items Provided The following is a list of items provided with each Model 2809 LDS CATV Receiver 2 3 Items Required Qty Mfr P N Description AR Force Inc 2809R SFXX CATVLinx LDS CATV Rx SM 1310 1550 nm SC APC Connector Standard FC APC Optional 1 per connector Any...

Страница 14: ...he use of silicone thermal pads is recommended between the module and the plate to maximize heat transfer 2 6 Unit Outline Drawing Figure 2 1 Model 2809 CATVLinx LDS CATV Receiver Dimensions in parentheses are in millimeters A 2 95 75 B C D 1 12 29 2 50 64 16 DIA MOUNTING HOLES 4 PLACES 3 75 95 3 375 86 Pin 1 A Optical Level LED Tri colored LED Indicates that the unit is receiving sufficient optic...

Страница 15: ...ut NEVER Most fiber optic laser wavelengths 1310 nm and 1550 nm are totally invisible to the unaided eye and will cause permanent damage Shorter wavelength lasers e g 780 nm are visible and are very damaging Always use instru ments such as an optical power meter to verify light output 5 NEVER NEVER NEVER look into the end of a fiber on a powered device with ANY sort of magnifying device This inclu...

Страница 16: ...ways use packing material to separate multiple units that are packaged together 2 Care should be taken not to drop or strike the units in any way especially around the optical connectors 3 The units should never be submersed in any liquid SEVERE SHOCK HAZ ARD 2 10 Storing the Unit If a unit is to be out of use for an extended period of time the following steps should be taken to ensure the preserv...

Страница 17: ...3 1 Model 2809 Block Diagram 3 2 Power up and Operation 1 Install the links as described in Section 2 page 7 2 Measure the RF level BEFORE making any connections to the transmitter This measurement is described in Section 3 3 page 12 3 Clean the optical connectors See Section 3 5 page 13 for cleaning instruc tions Be sure all optical connectors are APC type 4 Connect the optical fiber to the trans...

Страница 18: ...F In LED on the unit gives a positive indication of the RF level If the LED is yellow the RF level is too low Increase in 2 dB steps until the LED turns green If the LED is red the RF input level is too high Disconnect the RF input immediately Decrease RF levels by 6 dB and reconnect the RF input until the LED turns yellow or green If it turns yellow increase RF levels by 2 dB steps until the LED ...

Страница 19: ... optical connector end faces 3 5 1 Connector Cleaning Required Cleaning Equipment Kimwipes or any lens grade lint free tissue The type sold for eyeglasses work quite well Denatured Alcohol 30X Microscope Canned Dry Air Directions for Cleaning 1 Fold the tissue twice so it is four layers thick 2 Saturate the tissue with alcohol 3 First clean the sides of the connector ferrule Place the connector fe...

Страница 20: ... available Always include a com plete description of the failure or observed anomalies All units are marked with model number and serial number This identification sticker is placed on the rear panel transmitter or on the product label receiver The serial number is a date code used as a reference for warranty service Problem Check Comments No optical power out of Tx Check Tx AC power connec tion I...

Страница 21: ...uency response 2 F FCC notice 1 H handling precautions 10 handling the optical connector 14 I in band frequency response diagram 2 inspection 8 installation 7 10 general requirements 7 items provided 7 items required 7 module placement 8 outline drawing 8 power up 11 RF input level measurement 12 unit inspection 8 L laser safety precautions 9 12 LED optical level 8 O operating instructions 11 14 p...

Страница 22: ...air service 14 RF input level measurement 12 S safety precautions 9 laser safety 9 12 shipping precautions 10 storage precautions 10 T technical specifications 1 4 electrical 1 environmental 2 optical 1 physical 2 specification notes 2 video 1 technical support See troubleshooting transmitter part numbers 5 7 troubleshooting 14 repair service 14 technical support iii W warranty iii ...

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