Use the DBCSTRANSFORM parameter statement to configure Telnet linemode to support 3270 SBCS or DBCS ASCII-EBCDIC transformations. The DBCSTRANSFORM statement specifies that Telnet should load the 3270 DBCS transform module, TNDBCSTM, at initialization. If the NODBCSTRANSFORM statement is specified, standard linemode translation is performed.
Telnet is initialized with the value NODBCSTRANSFORM. DBCSTRANSFORM and NODBCSTRANSFORM can be coded in TELNETPARMS or PARMSGROUP. See Rules for Telnet parameter statements and security parameters for more information about the hierarchy of parameter values.
The TNDBCSTM module must be in a data set in the system search list. You can find the module in the installation data set, SEZALOAD. If you are using the 3270 DBCS transform mode, the TCP/IP address space might require additional virtual storage. The TNDBCSCN, TNDBCSXL, and TNDBCSER DD statements must be provided in the started procedure's JCL when DBCSTRANSFORM is specified. See the linemode operation information in z/OS Communications Server: IP Configuration Guide for details about their usage.
Transform is supported only on a single port. To use transform on a different port, the port using transform must be stopped using VARY TCPIP,,T,STOP. Then an OBEYFILE command can be used to process a new Telnet profile, which defines transform support on another port.
If DBCSTRANSFORM is coded in multiple parameter blocks, the last port identified as DBCSTRANSFORM is the DBCSTRANSFORM port. The maximum number of transform connections is 250.
Syntax
>>-+-----------------+----------------------------------------->< +-NODBCSTRANSFORM-+ '-DBCSTRANSFORM---'
Parameters
This statement has no parameters.