Connecting to IMS using NTO devices

Before you can initiate a Network Terminal Option (NTO) session, IMS must recognize the NTO device. You need to define the device to IMS and enter the /START DC from the master terminal.

For IMS to recognize the NTO device, you must do both of the following:

Procedure

  1. Define the NTO device to IMS during IMS system definition using the PU keyword in the TERMINAL macro. This keyword specifies the actual hardware that this NTO device represents.
  2. Enter a /START DC command from the IMS master terminal.

IMS initiates a session with an NTO device when one of the following occurs:

  • You enter the LOGON APPLID(nnnnnnnn) command at the NTO terminal.
  • You enter an /OPNDST command (for nonswitched devices only) from the IMS master terminal.
  • The VTAM® network operator issues a VARY command with the LOGON= keyword (for nonswitched devices only).

The NTO device receives a DFS3650I message when session initiation has completed successfully.