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AST RESEARCH, INC. TECHNICAL BULLETIN #TB-0345 11/19/87
AST-5250/CLUSTER INSTALLATION
This technical bulletin is written as a guide for installation
of the AST-5250/Cluster.
I. THINGS TO CHECK BEFORE RUNNING CLUSTER EMULATION
A. On the master cluster bring up emulation for all the
sessions that will be used for the cluster. This can be
done by defining the sessions as Non-CLUSTER, under
STATION in the CFG5251 program, and running KERNEL and
APS without CLU5251. This will verify that those
sessions are available and correctly configured on the
host.
B. Correctly install the Cluster Adapter Board. Ensure the
hardware settings (IRQ, I/O address) do not conflict
with other devices in the computer.
1. Switch Bank 1 (SW1) and Switch Bank 2 (SW2), the IRQ
switch settings, must be set to use a unique IRQ.
2. Switch Bank 3 (SW3) settings. SW3 3 must be on and
SW3 4 must be off. Settings for SW3 1 and SW3 2
depend on the type of computer used:
a. If a PC, PC compatible, AT or AT compatible
(80286) is used:
- Set SW3 1 off and 2 on for I/O address 2BF.
- Set SW3 1 off and 2 off for I/O address 1BF.
b. If an XT or XT compatible computer is used:
- Set SW3 1 off and 2 off for I/O address 1BF.
II. SETTING UP THE CLUSTER
A. Master Cluster: CFG5251 program configuration
1. Type CFG5251.
2. Answer YES to Master Cluster 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 DISPLAYs or CLUSTER PRINTERs.
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
a. Enter the IRQ and I/O Address of the Cluster board
under their appropriate options - INTERRUPT and
I/O_ADR respectively.
b. Configure each individual port. These must be set
for all ports being used (maximum of 4 ports).
c. 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, as specified in the AST-5250/
Cluster User's Manual (part number 000428-001,
section A.3, page A-6).
The following applies only if REMOTE DEVICE=ASCII24
or ASCII25:
XON/XOFF=XON/XOFF setting of ASCII terminal
SESSION NAME=NONE
d. 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.
e. INITIALIZE option. If a modem will be used to
remotely dial into this 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.
f. The EBCIDIC, ASCII, and TERMINAL options do not have
to be changed.
5. SAVE configurations and QUIT.
6. In DOS type KERNEL, CLU5251 and then APS. These
commands could also be put in a batch file.
B. Slave Cluster: 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.