User's Manual Part 3

SYSTEM MODE
Verifying Terminal Status
38 OMNI 3600 REFERENCE MANUAL
software to the terminal, upload software from one terminal to another, and
perform diagnostics over a telephone line.
This chapter contains descriptions on how to perform local system mode
operations. For information performing remote operations, such as downloads,
refer to Chapter 4.
Verifying
Terminal
Status
The Omni 3600 terminal you are working with may or may not have an application
program running on it. After you have set up the terminal (Chapter 1) and the
terminal is turned on, use the following guidelines to verify terminal status
regarding software and current operating mode:
• If no application program is loaded into terminal RAM or flash, the message
DOWNLOAD NEEDED appears on the display. From this point, press F2 and F4
to enter system mode and perform the required download.
• If an application program is loaded into terminal RAM or flash, an application-
specific application prompt appears. The application is running and the
terminal is in normal mode. If all installation steps are complete, the terminal
can process transactions.
Entering
System Mode
To prevent the unauthorized use of system mode menus, the Omni 3600 terminal
firmware requires a system password each time you enter system mode. The
default, factory set system password is “Z66831.” Use the following key sequence
to enter this password:
1 ALPHA ALPHA 6 6 8 3 1
[↵]
After entering the correct password, the terminal enters system mode and
displays the first system mode main menu,
SYS MODE MENU 1. You can now toggle
through all seven system mode main menus.
File Groups
The Omni 3600 operating system implements a file system in volatile, battery-
backed RAM and non-volatile flash memory. Files are assigned to one of 15
groups for access control. Groups are similar to directories on a computer in that
different applications can be stored in separate file groups, just like different
computer applications can be stored in separate directories. Groups are referred
to as Group n or GIDn throughout this manual.
Each group is protected by a separate password, and each has a separates
CONFIG.SYS file. The following rules apply to the Omni 3600 file group system:
NOTE
It is recommended to enter system mode only on system startup or terminal
restart.
If you enter system mode while an application is running, system mode suspends
the application and takes control of the display and keyboard. The application idles
in the background, but no longer accepts user inputs. You cannot return to the
application during that session, only after a restart. In addition, an application
running in the background may deny access to certain system mode functions.