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Motorola Installing SG 2000 Optical Modules, Removing SG 2000 Optical Modules

Models: SG 2000

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SG 2000 Optical Modules

The optical modules available for the SG 2000 include:

!SG2-LR — forward path optical receiver

!SG2-EIFPT — isolated Fabry-Perot return transmitter

!SG2-IFPT — isolated Fabry-Perot return transmitter

!SG2-FPT — non-isolated Fabry-Perot return transmitter

!SG2-DFBT and SG2-DFBT/3 — isolated DFB return transmitters

!DS-SG2-DRT/A and DS-SG2-DRT-2X/A — digital return transmitters

Designed specifically for use in the SG 2000 node platform, the modules combine high performance and easy maintenance.

Installing SG 2000 Optical Modules

The design of the SG 2000 optical modules enable you to install them while the node is in service. To install an optical module:

1Determine the proper slot for the module by referring to the Forward Path RF Configuration or the Return Path RF Configuration information in the beginning of this section. Position the module in the appropriate slot and press gently on the casting until it is fully seated. Tighten the two mounting bolts to secure the module in the SG 2000 lid.

2Remove the dust covers from the service cable connector and the module’s optical connector.

3Carefully clean the optical connector using a suitable optical cleaning kit.

4Connect the service cable to the module’s optical connector.

5If necessary, check the optical power levels. Check and align the RF levels in accordance with system requirements and procedures.

Removing SG 2000 Optical Modules

The SG 2000 optical modules design enables you to remove them while the node is in service.

CAUTION!

The module surfaces may be hot. Allocate sufficient time for the module to cool before handling.

To remove an optical module:

1Disconnect the service cable from the optical connector assembly on the module. Place dust covers on the service cable connector and the modules optical-connector assembly.

2Loosen the two mounting bolts that secure the optical module in the SG 2000 lid.

3Pull the module from the SG 2000 lid using the wire handle on top of the module.

SG 2000 Installation and O peration Manual

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Motorola operation manual Installing SG 2000 Optical Modules, Removing SG 2000 Optical Modules

Contents

A R L I N E Special Symbols that Might Appear on the Equipment Contents E r a t i o n Installation Torque Specifications Abbreviations and Acronyms Specification s SG2-LR Tables N t e n t s SG 2000 closed Section SG 2000 open Features include Related Documentation Using this Manual If You Need Help Document ConventionsBold type Calling for Repairs SG 2000 housing dimensions front and side view HousingMounting Holes Port locations Port Locations Gaskets Housing gaskets SG2-PS2 power supply Power Supply Network Monitoring Configuration To suit system requirements the RF chassis cover. notation Forward Path Signal flow diagram E r v i e w SG2-LR Receiver SG2-LR receiver functional diagram Analog Return Transmitters Analog Return PathModel Description Analog return transmitters JXP SG2 transmitter block diagram Digital return transmitters Digital Return Path DS-SG2-DRT-2X/A Options and accessories Options and AccessoriesLevel Control Model Description Function SG2-PS2 SG2-SBSG2 SG2-FE Optical input versus 750 MHz gain Gain Selection Optical input versus 870 MHz gain 10 illustrates the gain option selection chart for 870 MHz Relative level dB versus 750 MHz slope 77 channels Tilt Selection Relative level dB versus 870 MHz slope 94 channels SG2 870 MHz Slope Chart Analog Channels, 220 MHz Digital Relative level dB versus 870 MHz slope 110 channels SG2 870 MHz Slope Chart Analog Channels, 120 MHz Digital N c h S e t u p G u r e 3 2 0 0 0 R F c h a s s i s W e r i n g t h e N o d e Fuse Functi o n Rati ng Ype W e r S u p p l y S e t t i n g s Illustrates the location of the LO-HIjumper Single Power Supply or Commonly Po wered Redundant Supplies I c k C h e c k s F u n c t i o n a l T e s t i n g N u a l G a i n C o n t r o l Analog Retu rn Path R w a r d P a t h P a d d i n g B l e 3 2 0 0 0 p a d c h a r t s t a n d a r d g a i n B l e 3 2 0 0 0 p a d c h a r t h i g h g a i n G u r e 3 N k P e r f o r m a n c e G u r e 3 1 N c h S e t u p Install i n g t h e D S S G 2 D R R B B o a r d O p t i o n G u r e 3 1 S G 2 D R R B b o a r d Install e d G u r e 3 1 C a t i o n o f J X P s o n E p a c k Digital Transmitter Install i n g t h e S t a t u s M o n i t o r O p t i o n 2 0 0 0 a c t i v a t i o n W o r k s h e e t DC powering Splicing Fiber Service cable connection and compression fitting Installation Mounting bracket-front view Strand Wire Mounting Mounting bracket-rear and side views Fiber Cables Coaxial CablesCenter conductor length Housing lid and fiber spool tray Fiber spool tray Installation Single Receiver Mode Forward Path RF Configuration Broadband/Narrowcast Mode Redundant Receiver ModeRedundant receiver Broadband/narrowcast Override AB Override Functionality Status monitor/MCB operation Status Monitor/Manual Control Operation Redundant return Analog Return Path RF ConfigurationSplit return RF chassis and location of the SG2-RPM/C or SG2-RPM/S board DS-SG2-DRT/A redundant return Digital Return Path RF Configuration DS-SG2-DRT-2X/A redundant return DS-SG2-DRT-2X/A split return SG 2000 Optical Modules Installing SG 2000 Optical ModulesRemoving SG 2000 Optical Modules SG2 LR Optical Receiver Cleaning the Optical Connector Feature Description 0.3 Test-point voltage versus optical power Wavelength selection jumper Wavelength Selection Jumper SG2-IFPT features FeatureDescriptionSG2 Ifpt Optical Transmitter SG2-FPT features Transmitter enableSG2 FPT Optical Transmitter SG2 Dfbt Optical Transmitter SG2-DFBT features Single red LED that lights if the hybrid current is outside SG2 DFBT/3 Optical Transmitter SG2-DFBT/3 features SG2 Eifpt Optical Transmitter SG2-EIFPT features DS-SG2-DRT/A DS SG2 DRT/A Digital Return Transmitter DS-SG2-DRT/A features Feature DS-SG2-DRT-2X/A DS SG2 DRT 2X/A Digital Return Transmitter DS-SG2-DRT-2X/A features DS-SG2-DRT-2X/A installed in SG DS-SG2-DRT-2X/A cable connector SG2-PS power supply SG2-PS Power SupplyDS-SG2-DRT-2X/A second RF input cable connection Parameter Description Status Monitoring Description Function Manual Control Board DB test point Alarm test pointPotentiometers ICS1 Through ICS4 State Description Ingress ControlOff Table A-1 SG 2000 optical characteristics Parameter SpecificationTable A-2 Station RF characteristics Appendix a ParameterSpeci fic ation Table A-6 SG2-FPT RF specifications Table A-5 SG2-IFPT RF specificationsParameter Table A-8 SG2-DFBT/3 RF specifications Table A-7 SG2-DFBT RF specifications Table A-10 SG2-DRT/A RF specifications Table A-9 SG2-EIFPT RF specifications Table A-11 SG2-DRT-2X/A RF specifications Minimum Optical Model Output Power DBm Option Watts ac Amps Power @90V @60V @52V @44V Table A-14 SG2-75 performance, with 77 channels Channels Link Launch SystemTable A-15 SG2-87 performance, with 94 channels Table A-16 SG2-87 performance, with 110 channels Torque Fastener Screw Size Wrench Size In-lbs Ft-lbs DBm DBcDBmV MHz Snap connector Return for service authorizationNational Television Standards Committee Optical modulation index Mgbi