Visara FEP-4600 Planning Guide - Manual (Page 49)

37x5 to FEP-4600 Migration and Planning Guide
707117-003 4-1
Chapter 4. VTAM BSC-Attached 3270
The FEP-4600 supports 3270 BSC platforms defined in VTAM by means of a Local
Non-SNA to BSC Gateway function. This implementation consists of ESCON or FICON
as the upstream connection, and one or more serial BSC lines downstream. For BSC 3270
installations that are currently supported by EP on the 37x5, please refer to the chapter
entitled: EP BSC-Attached 3270 Platforms
The following illustration shows what the network may look like.
Remote BSC 3270 devices appear to the host as if they were one or more locally attached
Non-SNA 3270 controllers. For Non-SNA definitions, the host gen can look very
different from one installation to another, because every attached device requires its own
subchannel address (and appropriate UNIT definition) included in the gen. Configuration
for the downstream media is performed in the FEP-4600 configuration.
BSC
FEP-4600
IBM S390
IBM z990
Director
BSC
BSC
ATMs (multidropped)
Legacy
Controllers