Motorola operation manual Features include, SG 2000 open

Page 10

1 - 2

I n t r o d u c t i o n

Figure 1-2 illustrates an open SG 2000 telecommunications optical node:

Figure 1-2

SG 2000 — open

 

 

 

-20dB

-20dB

 

 

 

 

FWD EQ

JXP 1

 

 

 

 

H

 

FWD EQ

H

PORT 1

 

 

PORT 2

L

ON

JXP 2

L

 

 

 

 

-20dB

 

ADU

TCU

JXP ADU

 

 

 

 

 

 

 

 

+24 V DC

MDR

 

ON

 

 

 

FTEC

JXP 1

 

 

 

-20dB

 

 

 

 

 

 

 

VARILOSSER

MAN

OFF

 

 

 

 

 

 

SG2-

 

 

 

 

 

 

 

 

 

 

 

IS

 

 

 

IS

JXP 2

CAUTION:

 

IS

 

 

 

 

 

CONTAINS PARTS

 

 

 

 

 

 

ANDASSEMBLIES

 

 

 

 

 

 

 

SUSCEPTIBLETO

REFER TO

 

JXP 3

 

STATUS MONITOR

IS

JXP 4

DAMAGE BY

MANUAL FOR

 

 

ELECTROSTATIC

FUSE VALUES

 

 

 

 

ADU

 

DISCHARGE(ESD)

 

 

 

FRB

 

 

 

 

 

 

 

 

ADU

 

 

 

 

 

JXP 3

 

RPM/*

-20dB

 

 

 

 

-20dB

RCVR

SG 2000

JXP 4

 

 

 

L

 

Optical Node

 

L

 

PORT 3

 

 

 

PORT 4

H

 

 

 

 

H

 

EQ

 

 

FWD EQ

 

 

 

 

 

 

 

-20dB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-20dB

 

 

 

 

 

 

ASSEMBLED IN MEXICO

 

Base

Lid

Features include:

!

!

!

!

!

!

!

52 through 870 MHz forward passband, 5 through 40 MHz return standard (other splits are available, see Appendix A, “Specifications”)

Optical receivers - up to three Optical transmitters - up to two Four independent RF outputs

Ingress switching capability through manual or headend control Redundant powering capability

15 A power passing

SG 2000 Installation and O peration Manual

Page 9 Page 11
Image 10
Page 9 Page 11
Contents A R L I N E Special Symbols that Might Appear on the Equipment Contents Installation E r a t i o nSpecification s Torque Specifications Abbreviations and AcronymsSG2-LR Tables N t e n t s Section SG 2000 closedFeatures include SG 2000 openUsing this Manual Related DocumentationIf You Need Help Document ConventionsBold type Calling for Repairs SG 2000 housing dimensions front and side view HousingMounting Holes Port Locations Port locationsHousing gaskets GasketsPower Supply SG2-PS2 power supplyConfiguration Network MonitoringTo suit system requirements the RF chassis cover. notation Signal flow diagram Forward PathE r v i e w SG2-LR receiver functional diagram SG2-LR ReceiverModel Description Analog Return PathAnalog Return Transmitters Analog return transmittersSG2 transmitter block diagram JXPDigital Return Path Digital return transmittersDS-SG2-DRT-2X/A Level Control Options and AccessoriesOptions and accessories Model Description FunctionSG2 SG2-SBSG2-PS2 SG2-FEGain Selection Optical input versus 750 MHz gain10 illustrates the gain option selection chart for 870 MHz Optical input versus 870 MHz gainTilt Selection Relative level dB versus 750 MHz slope 77 channelsSG2 870 MHz Slope Chart Analog Channels, 220 MHz Digital Relative level dB versus 870 MHz slope 94 channelsSG2 870 MHz Slope Chart Analog Channels, 120 MHz Digital Relative level dB versus 870 MHz slope 110 channelsN 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 Service cable connection and compression fitting Splicing FiberInstallation Strand Wire Mounting Mounting bracket-front viewMounting bracket-rear and side views Fiber Cables Coaxial CablesCenter conductor length Housing lid and fiber spool tray Fiber spool tray Installation Forward Path RF Configuration Single Receiver ModeRedundant receiver Redundant Receiver ModeBroadband/Narrowcast Mode Broadband/narrowcastAB Override Functionality OverrideStatus Monitor/Manual Control Operation Status monitor/MCB operationRedundant return Analog Return Path RF ConfigurationSplit return RF chassis and location of the SG2-RPM/C or SG2-RPM/S board Digital Return Path RF Configuration DS-SG2-DRT/A redundant returnDS-SG2-DRT-2X/A split return DS-SG2-DRT-2X/A redundant returnSG 2000 Optical Modules Installing SG 2000 Optical ModulesRemoving SG 2000 Optical Modules Cleaning the Optical Connector SG2 LR Optical ReceiverFeature Description Test-point voltage versus optical power 0.3Wavelength Selection Jumper Wavelength selection jumperSG2-IFPT features FeatureDescriptionSG2 Ifpt Optical Transmitter SG2-FPT features Transmitter enableSG2 FPT Optical Transmitter SG2-DFBT features SG2 Dfbt Optical TransmitterSingle red LED that lights if the hybrid current is outside SG2-DFBT/3 features SG2 DFBT/3 Optical TransmitterSG2-EIFPT features SG2 Eifpt Optical TransmitterDS SG2 DRT/A Digital Return Transmitter DS-SG2-DRT/AFeature DS-SG2-DRT/A featuresDS SG2 DRT 2X/A Digital Return Transmitter DS-SG2-DRT-2X/ADS-SG2-DRT-2X/A features DS-SG2-DRT-2X/A cable connector DS-SG2-DRT-2X/A installed in SGSG2-PS power supply SG2-PS Power SupplyDS-SG2-DRT-2X/A second RF input cable connection Status Monitoring Parameter DescriptionManual Control Board Description FunctionPotentiometers ICS1 Alarm test pointDB test point Through ICS4State Description Ingress ControlOff Table A-2 Station RF characteristics Parameter SpecificationTable A-1 SG 2000 optical characteristics Appendix aParameterSpeci fic ation Table A-6 SG2-FPT RF specifications Table A-5 SG2-IFPT RF specificationsParameter Table A-7 SG2-DFBT RF specifications Table A-8 SG2-DFBT/3 RF specificationsTable A-9 SG2-EIFPT RF specifications Table A-10 SG2-DRT/A RF specificationsMinimum Optical Model Output Power DBm Table A-11 SG2-DRT-2X/A RF specificationsOption Watts ac Amps Power @90V @60V @52V @44V Table A-15 SG2-87 performance, with 94 channels Channels Link Launch SystemTable A-14 SG2-75 performance, with 77 channels Table A-16 SG2-87 performance, with 110 channelsTorque Fastener Screw Size Wrench Size In-lbs Ft-lbs DBmV DBcDBm MHzNational Television Standards Committee Return for service authorizationSnap connector Optical modulation indexMgbi
Top Page Image Contents