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AST RESEARCH, INC. TECHNICAL BULLETIN #TB-0344 11/19/87
AST-5250/ASYNC DIALUP INSTALLATION
This technical bulletin is written as a guide for installation
of the AST-5250/Async Dialup.
I. THINGS TO CHECK BEFORE RUNNING CLUSTER EMULATION
A. On the master async dialup, bring up emulation for the
session that will be used by the slave. This can be
done by defining the sessions under STATION in the
CFG5251 program as a regular DISPLAY (not CLUSTER
DISPLAY) and running KERNEL and APS without ACLU5251.
This will verify that the session is available and
correctly configured on the host.
II. SETTING UP THE ASYNC DIALUP
A. Master Async Dialup: CFG5251 program configuration
1. Type CFG5251.
2. Answer YES to Master Async Dialup question.
3. Go into STATION.
a. Define sessions to be used by the master as
DISPLAYs or PRINTERs under the STATION option.
b. Define sessions to be distributed to slaves as
CLUSTER
Give unique SESSION NAMEs for each CLUSTER session
that will be distributed. Make a note of these names
and their corresponding sessions numbers.
4. Go into CLUSTER: Configure async dialup interface.
a. COMPORT configurations. These settings depend on
how the slave device is set. The most common
settings are:
BAUD=9600 for COM LINE=DEDICATED, or
BAUD=(speed of modem) for COM LINE=DIALUP
DATA=8
STOP=1
PARITY=NONE
REMOTE DEVICE=device type of slave, either PC,
ASCII24 or ASCII25 (ASCII refers to "dumb-
terminals").
COM LINE=DIALUP for slaves using modems to
communicate to master.
COM LINE=DEDICATED for slaves using RS-232C
cables to communicate to master (must be null-
modem cables).
The following only applies if REMOTE DEVICE=ASCII24
or ASCII25:
XON/XOFF=XON/XOFF setting of ASCII terminal
SESSION NAME=NONE
b. DIRECTORY settings. Enter a directory NAME for each
slave that will be using this session and port. For
example enter Alf for the NAME of directory listing
0. Alf must also be entered in the slave for
directory listing 0 if it will be using this session
and is attached to this port. Up to 19 directory
listings may be defined.
c. INITIALIZE option. If a modem will be used to
remotely dial into this master async dialup, an
initialization string must be entered here.
Modem String
Hayes compatible 1200 baud ATE0Q0S0=1
Hayes compatible 2400 baud ATE0Q0S0=1&C1&D2
Microcom compatible ATE0Q0S0=1&C1&D2\J0
The purpose of this string is to set the modem into
auto-answer mode, inhibit command echo, enable
result codes back to the terminal, and set the modem
to be in direct mode with a set baud rate speed.
d. The EBCIDIC, ASCII, and TERMINAL options do not have
to be changed.
5. SAVE configurations and QUIT.
6. In DOS type KERNEL, ACLU5251 and then APS. These
commands could also be put in a batch file.
B. Slave Async Dialup: CFG5251S program configuration
1. Type CFG5251S.
2. Answer NO to all initial questions.
3. Go into HARDWARE.
a. COMPORT configurations. All settings in this
selection: BAUD, DATA, STOP, PARITY, COM_PORT,
DEVICE, and COMLINE must be the same as the master
configurations for this particular port.
b. DIRECTORY configurations. Each directory NAME must
match the name on the master directory. For
example, if Alf was entered for the NAME of
directory listing 0 on the master then Alf must also
be entered for directory listing 0 on this slave.
If slave will be a DIALUP device (remote emulation,
using modems) the PHONE NUMBER of the master must
also be entered, remember to start the number with
the ATDT dial command.
c. INITIALIZE option. If a modem will be used to
remotely dial into the master cluster, an
initialization string must be entered here.
Modem String
Hayes compatible 1200 baud ATE0Q0S0=1
Hayes compatible 2400 baud ATE0Q0S0=1&C1&D2
Microcom compatible ATE0Q0S0=1&C1&D2\J0
The purpose of this string is to set the modem into
autoanswer mode, inhibit command echo, enable result
codes back to the terminal, and set the modem to be
in direct mode with a set baud rate speed.
4. Go into the STATION option.
a. Define all sessions to be used by this slave PC as
DISPLAYs or PRINTERs.
Ensure the session numbers and corresponding SESSION
NAMEs match the master cluster definitions, the name
is case dependent.
5. SAVE configurations and QUIT.
6. In DOS type KERNELSL and then APS. These commands
could also be put in a batch file.