Gaskets, Housing gaskets | Motorola SG 2000 instruction

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Gaskets

Each housing is equipped with a woven-wire gasket and a silicone-rubber weather gasket between the housing base and lid as shown in Figure 2-3:

Figure 2-3

Housing gaskets

Weather gasket (silicone rubber)

								-20dB
-20dB
		JXP 1
		FWD EQ
H					FWD EQ		H
PORT 1								PORT 2
L		ON			JXP 2		L
					JXP 2
		-20dB	ADU		TCU	JXP ADU
		+24 V DC	MDR	ON
FTEC		JXP 1	MDR	ON			-20dB
FTEC		JXP 1		OFF			-20dB
			VARILOSSER	OFF
			MAN	SG2-
				SG2-
		IS				IS	JXP 2	CAUTION:
		IS						CONTAINS PARTS
		IS						ANDASSEMBLIES
REFER TO								SUSCEPTIBLE TO
REFER TO		JXP 3		STATUS MONITOR		IS	JXP 4	DAMAGE BY
MANUAL FOR		JXP 3		STATUS MONITOR		IS	JXP 4	ELECTROSTATIC
FUSE VALUES					ADU			DISCHARGE(ESD)
					ADU
			FRB
				ADU
		JXP 3		RPM/*		-20dB
		-20dB	RCVR	SG 2000	JXP 4
	L		RCVR	Optical Node			L
PORT 3	L			Optical Node			L	PORT 4
PORT 3	H						H	PORT 4
	H	EQ			FWD EQ		H
		EQ			FWD EQ
-20dB
								-20dB
							ASSEMBLED IN MEXICO

RF gasket

(woven wire)

The gaskets provide efficient ground continuity, RF shielding and weather protection. Both gaskets must be in place and in good condition to ensure proper operation and protection of the node. The silicone rubber gasket should be lightly covered with silicone grease each time the node is opened. Replace the gasket if it is damaged or deformed.

SG 2000 Installation and O peration Manual

Image 16

Motorola SG 2000 operation manual Gaskets, Housing gaskets

Contents

A R L I N E Special Symbols that Might Appear on the Equipment Contents Installation E r a t i o n Specification s Torque Specifications Abbreviations and Acronyms SG2-LR Tables N t e n t s Section SG 2000 closed Features include SG 2000 open Using this Manual Related Documentation If You Need Help Document ConventionsBold type Calling for Repairs SG 2000 housing dimensions front and side view HousingMounting Holes Port Locations Port locations Housing gaskets Gaskets Power Supply SG2-PS2 power supply Configuration Network Monitoring To suit system requirements the RF chassis cover. notation Signal flow diagram Forward Path E r v i e w SG2-LR receiver functional diagram SG2-LR Receiver Analog Return Path Analog Return TransmittersModel Description Analog return transmitters SG2 transmitter block diagram JXP Digital Return Path Digital return transmitters DS-SG2-DRT-2X/A Options and Accessories Options and accessoriesLevel Control Model Description Function SG2-SB SG2-PS2SG2 SG2-FE Gain Selection Optical input versus 750 MHz gain 10 illustrates the gain option selection chart for 870 MHz Optical input versus 870 MHz gain Tilt Selection Relative level dB versus 750 MHz slope 77 channels SG2 870 MHz Slope Chart Analog Channels, 220 MHz Digital Relative level dB versus 870 MHz slope 94 channels SG2 870 MHz Slope Chart Analog Channels, 120 MHz Digital Relative level dB versus 870 MHz slope 110 channels 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 Service cable connection and compression fitting Splicing Fiber Installation Strand Wire Mounting Mounting bracket-front view Mounting 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 Mode Redundant Receiver Mode Broadband/Narrowcast ModeRedundant receiver Broadband/narrowcast AB Override Functionality Override Status Monitor/Manual Control Operation Status monitor/MCB operation Redundant 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 return DS-SG2-DRT-2X/A split return DS-SG2-DRT-2X/A redundant return SG 2000 Optical Modules Installing SG 2000 Optical ModulesRemoving SG 2000 Optical Modules Cleaning the Optical Connector SG2 LR Optical Receiver Feature Description Test-point voltage versus optical power 0.3 Wavelength Selection Jumper Wavelength selection jumper SG2-IFPT features FeatureDescriptionSG2 Ifpt Optical Transmitter SG2-FPT features Transmitter enableSG2 FPT Optical Transmitter SG2-DFBT features SG2 Dfbt Optical Transmitter Single red LED that lights if the hybrid current is outside SG2-DFBT/3 features SG2 DFBT/3 Optical Transmitter SG2-EIFPT features SG2 Eifpt Optical Transmitter DS SG2 DRT/A Digital Return Transmitter DS-SG2-DRT/A Feature DS-SG2-DRT/A features DS SG2 DRT 2X/A Digital Return Transmitter DS-SG2-DRT-2X/A DS-SG2-DRT-2X/A features DS-SG2-DRT-2X/A cable connector DS-SG2-DRT-2X/A installed in SG SG2-PS power supply SG2-PS Power SupplyDS-SG2-DRT-2X/A second RF input cable connection Status Monitoring Parameter Description Manual Control Board Description Function Alarm test point DB test pointPotentiometers ICS1 Through ICS4 State Description Ingress ControlOff Parameter Specification Table A-1 SG 2000 optical characteristicsTable 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-7 SG2-DFBT RF specifications Table A-8 SG2-DFBT/3 RF specifications Table A-9 SG2-EIFPT RF specifications Table A-10 SG2-DRT/A RF specifications Minimum Optical Model Output Power DBm Table A-11 SG2-DRT-2X/A RF specifications Option Watts ac Amps Power @90V @60V @52V @44V Channels Link Launch System Table A-14 SG2-75 performance, with 77 channelsTable 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 DBc DBmDBmV MHz Return for service authorization Snap connectorNational Television Standards Committee Optical modulation index Mgbi