When Component Integration Services is enabled, you can choose between the site
handler or Component Integration Services to handle outbound remote procedure calls
(RPCs).
Site Handler and Outbound RPCs
Within an SAP ASE, outgoing RPCs are transmitted by means of a site handler, which multiplexes multiple requests through a single physical connection to a remote server.
Text Parameters for RPCs
SAP ASE can send large chunks of data in a single remote procedure call.
Text Parameter Support for XJS/390
Because of the ability to forward large blocks of text as RPC parameters, Component Integration Services can interact with IBM mainframes using XJS/390. XJS/390 scripts (JavaScript-like syntax) stored within SAP ASE tables (or files accessible via proxy tables), and forwarded to the mainframe using an RPC.