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IBM System z Connectivity Handbook by Zhaoxu Zhang, Hans Wijngaard, Esra Ufacik, André Spahni, Vicente Ranieri Jr, Frank Packheiser, Fernando Nogal, Swee Seng Ng, Gerard Laumay, Octavian Lascu, Parwez Hamid, Wolfgang Fries, Ivan Doboš, Karan Singh

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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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