IBM 3174 Customization
     The IBM 3170 Controllers are what drive the CoAx terminals, including the z/OS Consoles. These are customized so that some CoAx ports can have two sessions. Any replacement of these devices should be customized with the same configurations, the only allowable difference being the model.

Prod LPAR Configuration
Test LPAR Configuration

The normal terminal usage is:
Function
Address Alternate Address Alternate Session Action
000 Prod LPAR Primary Console 01A Prod TSO/CICS V 000,ONLINE
V 000,CONSOLE
003 Prod LPAR Alternate Console 01D Prod TSO/CICS V 003,ONLINE
V 003,CONSOLE
002 Prod TSO/CICS 01C Prod TSO/CICS If 000 will not work:
V NET,INACT,ID=T002ACT0,I
V 002,ONLINE
V 002,CONSOLE
004 Prod TSO/CICS 01E Prod TSO/CICS  
020 Test LPAR Primary Console 01F Test TSO/CICS V 020,ONLINE
V 020,CONSOLE

If Prod LPAR 3174 dies:
TEST:
   V 020,OFFLINE.FORCE
   V NET,INACT,ID=L020,I
   V 020-03F,OFFLINE
PROD:
   V 020,ONLINE
   V 020,CONSOLE

To reestablish normal console environment
To turn a TSO/CICS address to an OS Console