RSys              (Any)

DESCRIPTION
The "RSys" is the name of the remote system connection for any given entry.
Specifically, "RSys" refers to the following for different Sun MTPScan Screen 
entries:

DCT Remote: where a remote transient data queue resides
ISC       : name of a connection entry
TCT       : system that contains the "Termid" that started a Transaction Route
TST       : where a remote temporary storage queue resides
PCT       : name of the remote system where the transaction resides
VSAM      : name of the remote system where the "Dataset" resides


VALUES
A system name with a maximum of 4 characters. 


INTERPRETATION
"RSys" refers to the actual definition of the connection that is in the System 
Entries portion of the Sun MTP Terminal Control Table (TCT). The ISC Screen shows
the definition details of each connection. 


CONCLUSIONS
Programmers may parameterize an EXEC CICS command with "RSys". When executing 
an EXEC CICS command, Sun MTP checks to see if the SYSID parameter is coded on 
the command. If present, the command is shipped to the remote system identified 
by "RSys". If the parameter is not coded or the value is the same as the SysID 
defined in the Sun MTP System Initialization Table (SIT), Sun MTP searches the 
resource table to check if the resource has been defined as remote. If, by any 
of these routes, Sun MTP determines that the command should be shipped to a 
remote system, Sun MTP searches the TCT System Entries for a match between the 
"RSys" parameter and the SYSID passed either from the EXEC CICS command or from 
the resource table.

If Sun MTP cannot find a match between the "RSys" datapoint and the SYSID, the
system generates a SYSIDERR as an exception response. If a match is found, 
Sun MTP uses the corresponding "Partner" and "Mode" (as seen on the ISC Screen)
to parameterize an LU6.2 Allocate command to initiate an intersystem 
communication (ISC) request.
