STAT-4, STAT-8, AND STAT-24
22
3.9 Starting the Configuration Session
3.9.1 U
SING THE
S
TAT
M
UX
C
ONFIGURATION
P
ROGRAM
The stat mux configuration program is used to configure the stat mux for operation in your particular system.
The configuration programs for the Stat-4, Stat-8, and Stat-24 are similar, except for the number of
sub-channels. You can run the configuration program on any standard CRT terminal, connected to any
sub-channel port. It’s a simple menu-driven program that guides you through the various configuration steps:
1. At each step, a screen that shows all available selections appears, and when applicable, also shows the
current selections.
2. The mux uses a standard selection procedure throughout: the available options are marked with numbers;
indicate your selection by typing the option number.
3. To leave the current screen, type
Q
. This returns you to the previous screen.
The program checks your entries and does not accept invalid entries. For example, if the program expects a
numerical entry in a certain range, but you press a key outside this range, the program ignores your entry and
waits for a valid response. After a valid response is provided, it is immediately executed by the local stat mux. As
you will see later, when you prepare the configuration for the remote stat mux, three different stages are used:
preparing for configuration, transferring to remote stat mux, and activating transferred configuration.
When changing parameters related to the communication format of the sub-channel used to configure the stat
mux, you must immediately change terminal communication format as well. However, if you make a mistake
and lose communication with the stat mux, you can always quit the configuration program and start again from
the default configuration. (Set the INIT/NOR jumper to INIT; see
Section 3.3
for instructions).
You can always stop the configuration session at any point, by pressing the
ESC
(ape) key of the terminal;
however, any changes you make before you press the
ESC
key remain in effect.
3.9.2 P
REPARING FOR
C
ONFIGURATION
S
ESSION
1. Turn the stat mux on and establish communication with the remote stat mux.
2. Select one of the terminals connected to stat mux sub-channels as a command (configuration) terminal,
or connect a CRT terminal to one of the stat mux ports.
3. When a new terminal is connected to the stat mux sub-channel selected as the command port, program
the communication parameters of this terminal according to those of the selected stat mux port (factory
setting is 9600 bps, 8 data bits, 1 stop bit, no parity bit).
3.9.3 S
TARTING THE
C
ONFIGURATION
P
ROGRAM
The configuration program requires you to enter a password before proceeding any further. If you enter an
incorrect password, the stat mux immediately returns to normal operation, and you must start again the
configuration session.
