Telenetics manual Switch One Settings 2185 a

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Telenetics 2185

In this application, the main channel of both 2185 A and 2185 B are con- nected via a straight-through cable with the 2185 A main channel set to DTE and the 2185 B main channel set to DCE. The data rate is 1.2 kpbs asynchronous so clocking is not an issue. Subchannel one of 2185 A is connected directly to the local host computer and is set to DTE. Sub- channel two is connected via a modem link to the backup computer installation and is set to DCE.

All five subchannels of 2185 B are connected to external devices with subchannels one, two, and four set to DTE and subchannels three and five set to DCE.

The following tables show the switch settings for 2185 A first and then for 2185 B.

Table 3-12. Switch One Settings – 2185 A

	Switch
	Segment	Setting	Reason

	1-1	Down	Enable Subchannel 1

	1-2	Down	Enable Subchannel 2

	1-3	Up	Disable Subchanel 3

	1-4	Up	Disable Subchannel 4

	1-5	Up	Disable Subchannel 5

	1-6	Up	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

3-23

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Contents Telenetics Proprietary Material Page Page Contents Ordering Information Features IntroductionData Interface Subchannel Contention Main Channel BroadcastSynchronous Data Retiming Buffer Anti-Streaming ApplicationsPort-Sharing Application Port-Sharing ModeModem-Sharing Application Modem-Sharing ModeCascading Co-Located TerminalsLocal Cascading Application Remote Cascading Application Specifications SpecificationsTelenetics Site Selection and Preparation Customer ResponsibilitiesPacking Materials UnpackingEquipment Supplied Damage/Material ShortagesEquipment Assembly Installation ProcedureInstallation Tools Required Mechanical InstallationRear Panel Assembly Straight-Through Cable Interface Telenetics Front View Door Closed Operating Controls IndicatorsInside 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 Clock Routing Configurations Switch Segment 2-4 Anti-Streaming Enable/DisableSwitch 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 Configuration Examples LED IndicatorsFunction Switch Three DTE/DCE OptioningDigital Bridging Application Example Digital Bridging Application Switch Two Switch OneSwitch Three Leased-Line Backup Application Example10 Leased-Line Backup Application Switch One 11. Switch Three 10. Switch Two11. Multimaster Multidrop Application Multimaster Multidrop Application Example12. Switch One Settings 2185 a 13. Switch Two Settings 2185 a 14. Switch Three Settings 2185 a15. Switch One Settings 2185 B 17. Switch Three Settings 2185 B 16. Switch Two Settings 2185 B18. LED Status Indicator Functions Main Power Connection12 Power Connection Operation POWER-DOWN ProcedurePreventive Maintenance Maintenance PhilosophyCorrective Maintenance Recovery from Anti-Streaming Alarm ConditionInstallations in the USA Returning Defective Equipment for RepairGeneral Packing Information Installations Outside the USA or Canada Telenetics Telenetics Ordering Information Ordering InformationTelenetics Glossary Glossary-2 Glossary-3 Glossary-4 Index INDEX-2 INDEX-3 INDEX-4