IBM System z Connectivity Handbook

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Enterprise Systems Connection

This chapter describes the Enterprise Systems Connection (ESCON) channel feature and provides information about ESCON I/O connectivity using fiber optic technology. The ESCON channel feature is not supported on the IBM zEnterprise EC12.

The following topics are covered:

•ESCON modes and topologies

•ESCON elements

•ESCON connectivity

4.1 Description

ESCON provides half-duplex serial-bit transmission in which the communication protocol is implemented through sequences of special control characters and through formatted ...

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