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Multipoint environment – Black Box DATA SHARER RS-232 User Manual

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The RS-232 Data Sharer works in synchronous or asynchronous applications to adapt
to your existing equipment.

IBM Controllers

(5294, 3274, etc.)

4-Port RS-232

Data Sharer

4-Port RS-232

Data Sharer

Up to 8 IBM

Controllers

7 IBM

Controllers

8-Port RS-232

Data Sharer

8-Port RS-232

Data Sharer

Leased Line

Modem

Modem

Modem

Modem

IBM Mainframe

Async Mainframe

Synchronous application—an RS-232 Data Sharer in an IBM

®

multipoint environment.

PCs with Communication Software

RS-232 Line

RS-232 Lines

Asynchronous application—an RS-232 Data Sharer providing four PCs with

access to an async host.

Front-End

Processor

RS-232 Cable

RS-232 Cable

Connect up to 15 remote controllers to a front-end processor by cascading

RS-232 Data Sharers.