Telnet Options

Overview

JET 3270 supports several 3270 model types. The terminal type, including model type, emulated is negotiated between JET 3270 and TN3270 server, as specified in RFC 1091 "Telnet Terminal-Type Option". The preferred terminal type is a user preference.

The terminal types supported by JET 3270 and the corresonding model types and alternate screen sizes are as follows:

When JET 3270 connects to a TN3270E server it forwards an LU resource name to the server (as specified in RFC 2355 "TN3270 Enhancements"). Using the LU resource name the server selects an LU name to assign to the session. The LU resource name may be an LU name or the name of a pool of terminal LUs. If the LU resource name is an LU name JET 3270 is requesting that specific LU be assigned. The server will select it if it is not currenlty in use. If the LU resource is the name of a pool then JET 3270 is requesting any one of the LU names associated with the pool. The server will dynamically select an unused one.

The LU resource name is a user preference. This is useful if the host has a set of LUs defined to it with specific characteristics that you want to use. For example, some LUs may be defined that are associated with printers on the host network. If you specify one of these LUs as your LU resource name, your host programmes can print to the associated printer for that LU.

Details

Applet parameter name: terminal_type
Group: Telnet Options
Label on Change Preference Set screen: Terminal Model
Value type: Terminal Type
Allowed values: IBM-3278-5-E, IBM-3278-4-E, IBM-3278-3-E, IBM-3278-2-E
Default value: IBM-3278-2-E
Description
The preferred terminal type.

Applet parameter name: start_connection
Group: Telnet Options
Label on Change Preference Set screen: Start Connection Automatically
Value type: Boolean
Allowed values: yes, no, true, false
Default value: yes
Description
Whether JET 3270 automatically initiate a connection to the host when it first starts and when a new terminal window is created.

Applet parameter name: prompt_host
Group: Telnet Options
Label on Change Preference Set screen: Prompt for Hostname
Value type: Echo
Allowed values: yes, no, true, false
Default value: yes
Description
Whether JET 3270 when automatically initiating a connection prompts the user to enter a hostname and port. This preference is only relevant if Start Connection Automatically is yes. On the Change Prefence Set screen if Start Connection Automatically is not selected then Prompt for Hostname checkbox is disabled.