Telenetics 2185 manual Switch One

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Telenetics 2185

In this application the main channel of 2185 A is connected to a host computer through a front-end processor. The data rate is 9. 6 kbps and the format is synchronous. Since the main channel is connected to a DTE type device the main channel on 2185 A is set to DTE.

Two subchannels are connected to 2185 B through two networks. One rout is through a digital network and the backup route is through a com- mon telephone network. Subchannels one and two of both 2185 A and 2185 B are set to DCE as that is the type of device to which they are connected. The main channel of 2185 B is set to DTE since it is con- nected to the controller. Clocking in this network is derived from the DSU connected to Subchannel One.

The following tables show the correct switch settings for this particular application and apply to both 2185s.

Table 3-9. Switch One

	Switch
	Segment	Setting	Reason

	1-1	Down	Enable Subchannel 1

	1-2	Down	Enable Subchannel 2

	1-3	Up	Disable Subchannel 3

	1-4	Up	Disable Subchannel 4

	1-5	Up	Disable Subchannel 5

	1-6	Down	The settings of these three
			switches set the data rate
	1-7	Up	switches set the data rate
	1-7	Up	(9. 6 kpbs)
			(9. 6 kpbs)
	1-8	Down

3-20

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Contents Telenetics Proprietary Material Page Page Contents Ordering Information Features IntroductionData Interface Subchannel Contention Main Channel BroadcastSynchronous Data Retiming Buffer Applications Anti-StreamingPort-Sharing Mode Port-Sharing ApplicationModem-Sharing Mode Modem-Sharing ApplicationCo-Located Terminals CascadingLocal Cascading Application Remote Cascading Application Specifications SpecificationsTelenetics Customer Responsibilities Site Selection and PreparationEquipment Supplied UnpackingPacking Materials Damage/Material ShortagesInstallation Tools Required Installation ProcedureEquipment Assembly Mechanical InstallationRear Panel Assembly Straight-Through Cable Interface Telenetics Operating Controls Indicators Front View Door ClosedInside Front Panel Function Switches Function Switch OneEnabling/Disabling Subchannels Function Switch Two Data Rate Selection Using Switch Segments 1-6 toFunction Switch Two Summary Switch Segment 2-1 Contention Mode Switch Segment 2-4 Anti-Streaming Enable/Disable Clock Routing ConfigurationsSwitch Segment 2-7 Main Channel RTS/DCD Strapping External Clock Reference with Main Channel DTE External Clock Reference with Main Channel DCE Internal Clock Reference with Main Channel DTE Internal Clock Reference with Main Channel DCE Subchannel 1 DCE Clock Reference with Main Channel DTE Subchannel 1 DCE Clock Reference with Main Channel DCE Function Switch Three LED IndicatorsConfiguration Examples DTE/DCE OptioningDigital Bridging Application Example Digital Bridging Application Switch One Switch TwoLeased-Line Backup Application Example Switch Three10 Leased-Line Backup Application Switch One 10. Switch Two 11. Switch ThreeMultimaster Multidrop Application Example 11. Multimaster Multidrop Application12. Switch One Settings 2185 a 13. Switch Two Settings 2185 a 14. Switch Three Settings 2185 a15. Switch One Settings 2185 B 16. Switch Two Settings 2185 B 17. Switch Three Settings 2185 BMain Power Connection 18. LED Status Indicator Functions12 Power Connection POWER-DOWN Procedure OperationCorrective Maintenance Maintenance PhilosophyPreventive Maintenance Recovery from Anti-Streaming Alarm ConditionInstallations in the USA Returning Defective Equipment for RepairGeneral Packing Information Installations Outside the USA or Canada Telenetics Ordering Information Telenetics Ordering InformationTelenetics Glossary Glossary-2 Glossary-3 Glossary-4 Index INDEX-2 INDEX-3 INDEX-4