RAD Data comm RSD-20 operation manual Hfodudwlrqri&Rqiruplw

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Manufacturer’s Name:	RAD Data Communications Ltd.
Manufacturer’s Address:	12 Hanechoshet St.
	Tel Aviv 69710
	Israel
declares that the product:
Product Name:	RSD-10

Conforms to the following standard(s) or other normative document(s):

EMC:	EN 55022	(1994)	Limits and methods of measurement of radio disturbance
			characteristics of information technology equipment.
	EN 50082-1 (1992)		Electromagnetic compatibility - Generic immunity
			standards for residential, commercial and light industry.
Safety:	EN 60950	(1992/93)	Safety of information technology equipment, including
			electrical business equipment.

Supplementary Information:

The product herewith complies with the requirements of the EMC Directive 89/336/EEC and the Low Voltage Directive 73/23/EEC. The product was tested in a typical configuration.

Tel Aviv, October 7th, 1996

Haim Karshen

VP Quality

European Contact: RAD Data Communications GmbH, Lyoner Strasse 14, 60528 Frankfurt am Main, Germany

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Contents RSD-20 DUUDQW\ 6DIHW\DUQLQJV HFODUDWLRQRI&RQIRUPLW\ Table of Contents General IntroductionFunctional Description Specifications Indicators PowerOrdering PhysicalInstallation Physical InstallationElectrical Installation AC PowerRear Panel Internal Switches and Strap SelectionRear Panel Installation Installation System Synchronization and Clock Distribution RSD-20/V.35Synchronization on Main Channel Modem Clock Synchronization on Main Channel Modem’s ClockSynchronization on RSD-20 Internal Clock Synchronization on Internal ClockRSD-20 Synchronization on Sub-channelRSD-20/X.21 External Clock for more than one Sub-channelMain channel is DTE attached to a modem Main and all sub-channels are DCE attached to DTEsMain channel is DCE and sub-channels are mixed DTE and DCE Operation Controls and IndicatorsFront Panel Operating Procedure Power Turn OnPower Turn Off OperationFault Isolation Procedure Power SupplyOperational Field Strapping Changes RSD MalfunctionContention SUB-CHANNEL DisableTheory of Operation and Applications IntroductionControl Signals Main Channel Control SignalsSub-channel Control Signals RSD-20/V.35RSD-20/X.21 Theory of Operation and Applications RSD-20 Operators Manual Theory of Operation and Applications Applications RSD-20 Operating ModesTable A.1 X21 Interface Signal Description Appendix aTable B.1 Interface Signal Description Appendix B