
Chapter 4. Central processor complex I/O system structure 127
The PRIZM Protocol Converter Appliance from Optica Technologies Incorporated provides a
FICON-to-ESCON conversion function that has been System z qualified. For more
information, see this website:
http://www.opticatech.com
4.8.3 FICON channels
The FICON Express8S, FICON Express8, and FICON Express4 features conform to the
Fibre Connection (FICON) architecture, the High Performance FICON on System z (zHPF)
architecture, and the Fibre Channel Protocol (FCP) architecture, providing connectivity
between any combination of servers, directors, switches, and devices (control units, disks, ...