This appendix provides information on 3270 configuration parameters so you can edit the configuration file to change emulator settings if you are using an ASCII terminal. Observe these guidelines when entering a configuration parameter:
Enter parameter names in UPPERCASE letters.
Do not include any spaces in the parameter definition. Be certain there are no spaces on either side of the equal sign (=).
Express numbers in decimal notation, except for 5080_ADDRESS.
Parameters in the configuration files preceded by a pound sign (#) are ignored (commented) until they are uncommented by removing the # character. Use commenting to activate or deactivate parameters instead of actually removing and reentering them.
The IRIS 3270 Emulator operates in several modes, as SNA, TCP, or 5080. The operational mode is determined by the LINK = [SNA, TCP, 5080] parameter in the /var/opt/3270/lib/t3279rc.$LOGNAME configuration file, where $LOGNAME is your login ID. You must have this file on the system running the IRIS 3270 Emulator for the software to function properly. To create a new configuration file, copy /var/opt/3270/lib/t3279rc.default and rename the default extension to your login ID name.
The sections that follow address the parameters that must be changed to establish one of these particular configurations: SNA, TCP, or 5080 link type, and Silicon Graphics IRISXFR file transfer support.
This section describes the /var/opt/3270/lib/t3279rc.$LOGNAME configuration file parameters. Some parameters are specific to particular link modes or file transfer operations.
This parameter specifies the Silicon Graphics host interface to which the 3270 emulator is connected.
| SNA | The IRIS 3270 Emulator is attached to an IBM host via the IRIS SNA SERVER gateway. An IBM control unit is not needed. The workstation running the IRIS 3270 Emulator may be connected to the SNA SERVER gateway through Ethernet. | |
| TCP | The IRIS 3270 Emulator is attached via Ethernet to an IBM host. | |
| 5080 | The IRIS 3270 Emulator is attached to an IBM host via the IRIS Channel Adapter. This mode emulates an IBM 3270 terminal session using the IRIS Channel Adapter. |
CHAR_SET=[FRENCH, GERMAN, ITALIAN, KATAKANA, PORTUGUESE, SPANISH, SWEDISH, UK_ENGLISH, US_ENGLISH]
This parameter defines the national character set used for keyboard input and display. There is no default character set.
This parameter defines the point size of window characters. Keep in mind that the font size changes the size of the emulation window.
For example, if you are using a 1024x1280 IRIS graphics terminal, models 2, 3, 4, and 5 fit on the screen with point size 9; models 2, 3, and 4 fit on the screen with point size 11; models 2 and 3 fit on the screen with point size 13; and model 2 fits on the screen with point size 15.
If you are using a 768x1024 IRIS graphics terminal, models 2, 3, and 4 fit on the screen with point sizes 9 and 11.
TRACE=[0,1]
This parameter turns the 3270 Trace option on and off. The values are:
| 0 | This is the default value. No trace is generated when trace=zero. | |
| 1 | Records the 3270 Presentation Space (PS), the status line, keyboard input, Silicon Graphics Message Mode data, and IBM structured fields. |
CURSOR_TYPE=[0,1]
This parameter determines the style of cursor. The values are:
| 0 | Block cursor | |
| 1 | Underline cursor (default) |
These parameters are used only with SNA link types.
These parameters are used only with TCP link types.
TCP_HOST=hostname or IP_address
This parameter can be the TCP name for the IBM host or the IP address.
TCP_PORT=portnumber
This parameter is the TCP port number for 3270 full-screen emulation on the IBM host. The default port number is 23.
These parameters are used only with 5080 link types.
5080_GATEWAY=hostname
This parameter specifies the 5080 host name of the 5080 gateway workstation.
5080_ADDRESS=0-0xffff
This parameter determines the channel address for the 3270 session, if specified.
To emulate an SNA 3270 terminal, you must define these parameters:
LINK=SNA CHAR_SET=[FRENCH, GERMAN, ITALIAN, KATAKANA, PORTUGUESE, SPANISH, SWEDISH, UK_ENGLISH,US_ENGLISH] SNA_GATEWAY=hostname POINT_SIZE=[9, 11, 13 15] TRACE=[0,1] |
To emulate a TCP 3270 terminal, you must define these parameters:
LINK=TCP CHAR_SET=[FRENCH, GERMAN, ITALIAN, KATAKANA, PORTUGUESE, SPANISH, SWEDISH, UK_ENGLISH, US_ENGLISH] TCP_HOST=hostname TCP_PORT=portnumber TCP_MODEL=[2, 3, 4, 5] POINT_SIZE=[9, 11, 13, 15] TRACE=[0,1] |