Motorola SG 2000 operation manual ParameterSpeci fic ation

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A - 2

S p e c i f i c a t i o n s

ParameterSpeci fic ation

Flatness over passband

±0.75 dB, all ports

Operational tilt (standard) 750 MHz:10 dB ±1 dB (low),12.5 dB ±1 dB (standard),

14 dB ±1 dB (high)

870 MHz: 9 dB ±1 dB (low), 11.5 dB ±1 dB (standard), 14 dB ±1 dB (high) (plug-in equalizers available)

Table A-3 lists the general characteristics for the SG 2000 node:

T a b l e A- 3

S G 2 0 0 0 G e n e r a l c h a r a c t e r i s t i c s

Parameter

Speci fic ations

AC input voltage

44 Vac through 110 Vac quasi-squarewave

AC bypass current

15 A

Hum modulation

–70 dB @ 15 A bypass current

Operating temperature

–40°C through +60° C (–40°F through +140° F)

Housing dimensions

21.6”(L) 10.6”(W) 11.0”(D), (without bracket)

Weight

Minimum 36 lbs./maximum 42 lbs. (without bracket)

Table A-4 lists the general specifications for the SG2-LR optical receiver:

T a b l e A- 4

S G 2 - L R s p e c i f i c a t i o n s

Parameter

Speci fic ation

Optical input power

–4.0 dBm to +2.0 dBm

range-recommended

 

Optical input

3 dBm

power-maximum

 

recommended1

 

Optical input return loss

40 dB minimum

RF passband

40 MHz through 870 MHz

Gain at 40 MHz2

19.5 dB minimum

Flatness

1.25 dB P-V maximum

Tilt

–0.5 dB to +2.0 dB maximum

Equivalent noise input

8 pA/Hz1/2 maximum

current

 

1

Absolute maximum optical input power that can be applied to the optical input connector.

2

Relative to an ideal photodetector terminated in a 75-ohm impedance.

S G 2 0 0 0 I n s t a l l a t i o n a n d O p e r a t i o n M a n u a l

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Contents A R L I N E Special Symbols that Might Appear on the Equipment Contents E r a t i o n InstallationTorque Specifications Abbreviations and Acronyms Specification sSG2-LR Tables N t e n t s SG 2000 closed SectionSG 2000 open Features includeRelated Documentation Using this ManualBold type Document ConventionsIf You Need Help Calling for Repairs Mounting Holes HousingSG 2000 housing dimensions front and side view Port locations Port LocationsGaskets Housing gasketsSG2-PS2 power supply Power SupplyNetwork Monitoring ConfigurationTo suit system requirements the RF chassis cover. notation Forward Path Signal flow diagramE r v i e w SG2-LR Receiver SG2-LR receiver functional diagramAnalog return transmitters Analog Return PathAnalog Return Transmitters Model DescriptionJXP SG2 transmitter block diagramDigital return transmitters Digital Return PathDS-SG2-DRT-2X/A Model Description Function Options and AccessoriesOptions and accessories Level ControlSG2-FE SG2-SBSG2-PS2 SG2Optical input versus 750 MHz gain Gain SelectionOptical input versus 870 MHz gain 10 illustrates the gain option selection chart for 870 MHzRelative level dB versus 750 MHz slope 77 channels Tilt SelectionRelative level dB versus 870 MHz slope 94 channels SG2 870 MHz Slope Chart Analog Channels, 220 MHz DigitalRelative level dB versus 870 MHz slope 110 channels SG2 870 MHz Slope Chart Analog Channels, 120 MHz DigitalN 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 fittingInstallation Mounting bracket-front view Strand Wire MountingMounting bracket-rear and side views Center conductor length Coaxial CablesFiber Cables Housing lid and fiber spool tray Fiber spool tray Installation Single Receiver Mode Forward Path RF ConfigurationBroadband/narrowcast Redundant Receiver ModeBroadband/Narrowcast Mode Redundant receiverOverride AB Override FunctionalityStatus monitor/MCB operation Status Monitor/Manual Control OperationSplit return Analog Return Path RF ConfigurationRedundant 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 ConfigurationDS-SG2-DRT-2X/A redundant return DS-SG2-DRT-2X/A split returnRemoving SG 2000 Optical Modules Installing SG 2000 Optical ModulesSG 2000 Optical Modules SG2 LR Optical Receiver Cleaning the Optical ConnectorFeature Description 0.3 Test-point voltage versus optical powerWavelength selection jumper Wavelength Selection JumperSG2 Ifpt Optical Transmitter FeatureDescriptionSG2-IFPT features SG2 FPT Optical Transmitter Transmitter enableSG2-FPT features SG2 Dfbt Optical Transmitter SG2-DFBT featuresSingle red LED that lights if the hybrid current is outside SG2 DFBT/3 Optical Transmitter SG2-DFBT/3 featuresSG2 Eifpt Optical Transmitter SG2-EIFPT featuresDS-SG2-DRT/A DS SG2 DRT/A Digital Return TransmitterDS-SG2-DRT/A features FeatureDS-SG2-DRT-2X/A DS SG2 DRT 2X/A Digital Return TransmitterDS-SG2-DRT-2X/A features DS-SG2-DRT-2X/A installed in SG DS-SG2-DRT-2X/A cable connectorDS-SG2-DRT-2X/A second RF input cable connection SG2-PS Power SupplySG2-PS power supply Parameter Description Status MonitoringDescription Function Manual Control BoardThrough ICS4 Alarm test pointDB test point Potentiometers ICS1Off Ingress ControlState Description Appendix a Parameter SpecificationTable A-1 SG 2000 optical characteristics Table A-2 Station RF characteristicsParameterSpeci fic ation Parameter Table A-5 SG2-IFPT RF specificationsTable A-6 SG2-FPT RF specifications Table A-8 SG2-DFBT/3 RF specifications Table A-7 SG2-DFBT RF specificationsTable A-10 SG2-DRT/A RF specifications Table A-9 SG2-EIFPT RF specificationsTable A-11 SG2-DRT-2X/A RF specifications Minimum Optical Model Output Power DBmOption Watts ac Amps Power @90V @60V @52V @44V Table A-16 SG2-87 performance, with 110 channels Channels Link Launch SystemTable A-14 SG2-75 performance, with 77 channels Table A-15 SG2-87 performance, with 94 channelsTorque Fastener Screw Size Wrench Size In-lbs Ft-lbs MHz DBcDBm DBmVOptical modulation index Return for service authorizationSnap connector National Television Standards CommitteeMgbi