TS/MP System Management Manual (G06.24+, H06.03+)
Introduction to NonStop TS/MP System 
Management
NonStop TS/MP System Management Manual—541819-001
1-12
Personal Computers and Workstations
Personal Computers and Workstations
Personal computers (PCs) and workstations can access the PATHMON environment 
using the RSC product. 
RSC enables client-server computing by supporting a variety of hardware and software 
configurations and communications protocols for PCs and workstations. In addition to 
delegating some processing normally performed by the NonStop system to the PC, 
RSC allows you to take advantage of the graphical user interfaces (GUIs)—pull-down 
menus, icons, dialog boxes, and online help—that are available on the PC.
For more information about the RSC product, see the 
Remote Server Call (RSC) 
Installation and Management Guide
. 
External TCPs
An external TCP is a TCP running outside of your PATHMON environment. The 
external TCP is controlled by another PATHMON process, but it can communicate with 
processes within your PATHMON environment. The system manager who configures 
a PATHMON environment determines how many (if any) external TCPs can 
communicate with the PATHMON environment.
Remember that the term “external TCP” is relative to your point of view: a TCP that 
runs in another PATHMON environment is external to your environment, but it is local 
to that other environment. In the other environment, that TCP is exactly like any other 
local TCP. Information about defining and managing TCPs is covered in the 
Pathway/iTS System Management Manual
.
Intelligent Devices
Intelligent devices—such as automated teller machines (ATMs), workstations, and bar-
code readers—can access server classes through SCREEN COBOL requester 
programs and the TCP, a process supported under the Pathway/iTS product. 
This access route is possible when the intelligent device support (IDS) facility, which is 
part of the TCP, is used. By delegating some processing to the intelligent device, IDS 
makes better use of the device’s processing ability and reduces the workload of the 
NonStop system.
SNA Devices
Requests from SNA devices can be handled by SNAX High-Level Support 
(SNAX/HLS), which allows NonStop application programs to communicate with SNA 
devices and host software. Using SNAX/HLS, NonStop applications can:
•
Access IBM host software products (such as CICS and IMS) for distributed 
transaction processing
•
Communicate with intelligent SNA controllers such as the IBM 3600 or 4700 
Financial Subsystems, or the IBM 3650 Retail Subsystem










