Motorola SG 2000 operation manual Fuse Functi o n Rati ng Ype

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B e n c h S e t u p

Table 3-1 identifies and describes the ac fuse options:

T a b l e 3 - 1

AC f u s e s

Fuse Functi o n		Rati ng		T ype
F1	This fuse delivers ac power to all ports. It is always required	20	A,	Auto,
	except when power from the ac input (port 2) must be	32	Vdc	plug-in, fast
	blocked at this location.			blow
F2	This fuse passes ac power to/from port 1.	20	A,	Auto,
		32	Vdc	plug-in, fast
				blow
F3	This fuse passes ac to/from port IN.	20	A,	Auto,
		32	Vdc	plug-in, fast
				blow
F4	This fuse is always required for the dc power supply.	10	A,	Auto,
		32	Vdc	plug-in, fast
				blow
F5	This fuse passes ac to/from port OUT.	20	A,	Auto,
		32	Vdc	plug-in, fast
				blow
F6	This fuse passes ac to/from port 3.	20	A,	Auto,
		32	Vdc	plug-in, fast
				blow
F7	This jumper ties two sections of the ac power bus together	Jumper		Auto,
	thus delivering ac power to both sides of the node. It should			plug-in,
	be removed only when dual power supplies are fed from			shunt
	separate ac sources.
F8	The 5V circuit includes Fuse F8 which protects the lid and	5 A, 32 Vdc		Auto,
	RF board under short-circuit conditions in conjunction with			plug-in, fast
	redundant power supplies.			blow
F9	The 24V circuit includes Fuse F9 that protects the lid and	10	A,	Auto,
	RF board under short-circuit conditions in conjunction with	32	Vdc	plug-in, fast
	redundant power supplies.			blow

CA U T ION!

Voltages up to 90 Vac are accessible. To avoid shock hazard, confirm that no power is applied to the node before removing cover or replacing fuses.

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 ManualIf You Need Help Document ConventionsBold type Calling for Repairs SG 2000 housing dimensions front and side view HousingMounting Holes 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 PathModel Description Analog return transmittersJXP SG2 transmitter block diagramDigital return transmitters Digital Return PathDS-SG2-DRT-2X/A Options and accessories Options and AccessoriesLevel Control Model Description FunctionSG2-PS2 SG2-SBSG2 SG2-FEOptical 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 Fiber Cables Coaxial CablesCenter conductor length Housing lid and fiber spool tray Fiber spool tray Installation Single Receiver Mode Forward Path RF ConfigurationBroadband/Narrowcast Mode Redundant Receiver ModeRedundant receiver Broadband/narrowcastOverride AB Override FunctionalityStatus monitor/MCB operation Status Monitor/Manual Control OperationRedundant 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 ConfigurationDS-SG2-DRT-2X/A redundant return DS-SG2-DRT-2X/A split returnSG 2000 Optical Modules Installing SG 2000 Optical ModulesRemoving SG 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 features FeatureDescriptionSG2 Ifpt Optical Transmitter SG2-FPT features Transmitter enableSG2 FPT Optical Transmitter 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 connectorSG2-PS power supply SG2-PS Power SupplyDS-SG2-DRT-2X/A second RF input cable connection Parameter Description Status MonitoringDescription Function Manual Control BoardDB test point Alarm test pointPotentiometers ICS1 Through ICS4State Description Ingress ControlOff Table A-1 SG 2000 optical characteristics Parameter SpecificationTable A-2 Station RF characteristics Appendix aParameterSpeci 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 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-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 channelsTorque Fastener Screw Size Wrench Size In-lbs Ft-lbs DBm DBcDBmV MHzSnap connector Return for service authorizationNational Television Standards Committee Optical modulation indexMgbi