Scientific Atlanta D9225 manual Rqqhfwlqj\Rxuv\Vwhp, …$ERXWWKH3$16,21SRUW

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The following information is provided to help you set up and connect the Headend Satellite Receiver to the satellite antenna, TV monitor, and other A/V (Audio/Video) headend equipment. The accompanying figure shows receiver rear panel connections for the NTSC receivers base version. For equipment intercon- nection details, see “TV & RF plus optional connections”.

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Table1PinFunction#1Chassis137Signal.EXPANSIONLowRemoteSpeedGroundRxTx(output)portData(input)pin(up-outto38.4Kbps) #20#21+5VDCcontroloutputvia471KΩ pull-upresistor

#2345Controloutput#4321 Ω -up

The Headend Satellite Receiver can be operated and monitored remotely via the EXPANSION port when connected to a PC workstation or data terminal. Remote receiver operation requires installation of a PC/data communications program. Note that certain program settings may vary, depending on the type of worksta- tion/terminal equipment being used. Data interface cables connected between the Headend Satellite Receiver and some customer equipment may require a unique pin-out for proper operation via the EXPANSION port (DB-25 female connector). For port pin-out information, see the accompanying table. Note that only those EXPANSION port pins used are shown (i.e., all other pins are unused, or are not required for normal operation).

L/R B A LA N C E D

A U D IO OU T PU T

LE VE L C O N TR O LS

A C P OW E R S OC K ET

S TER E O/M O N O

A U D IO S ELE C T S W.

803 -297

TO VIDE O IN P U T (C A B LE H EA D E N D ) TO SATELL IT E A N TEN N A O R E XT E R N A L M OD U L ATOR

LN B P O W E R S W.

					L N B P W R
					O N	O F F
				V ID E O
			R	L	E X PA N S ION P O R T	S AT E L L IT E
		A C IN 10 0 V- 2 40 V ~ A C
							Scien tific
		5 0/6 0 H z 1.4 A M A X
￿		This apparatus					Atlanta
Figure2.Rearpanelcmust be oearthennectiod			ns	A U D IO		L N B P W R	Satellite Television Networks
						+ 1 3/+ 1 9V 5 00 m A M A X
	TO	L /R B A L A N C ED A U D IO IN PU T
TE R M IN A L B L O C K (C A B L E H EA D E N D )					TO PC /W O R K STAT ION
			TO A U D IO IN P U T (C A B LE H EA D EN D )
					OR D ATA T E R MIN A L
			O R E XT E R N A L M OD U L ATOR
					(OP T IO N A L)