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AST RESEARCH, INC. TECHNICAL BULLETIN #0704 09-06-91
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AST 5251/12 REMOTE GATEWAY INSTALLATION
PURPOSE: To remotely attach multiple network nodes to an IBM mini (IBM
System 34, 36, 38 and AS/400) while only installing one
emulation card.
REASON: Cost effective way to have multiple nodes access emulation
while only having one emulation card and additional gateway
software.
HARDWARE
REQUIREMENTS: AST 5251/12 (CC-432 Adapter) Emulation Package. A NETBIOS
Compatible Local Area Network already installed and
operational. Synchronous Modems (NOT HAYES COMPATIBLE)
SOFTWARE
REQUIREMENTS: 5251/12 Emulation Version 4.30 (part number 910408-001,
910408-002 and 910408-003). 5250 Gateway Option Version 4.30
(part number 910411-001)
NOTE: Versions of both 5251/12 Emulation Software and 5250
Gateway Software may be updated in the future.
HARDWARE
SET UP: AST 5251/12 Adapter IRQ=2; I/O=300-30F (DEFAULT)
The above settings are factory default. If a conflict arises
with other hardware in the PC, the user should consult with
the conflicting hardware's reference manual for the settings
and change the AST hardware and software, or vice versa, in
order to resolve the conflict.
For installing and connecting the two Synchronous Modems
please refer to the Modem Manual, the AST 5251/12 User's
Manual (part number 000427-001A) and the AST CC-432 User's
Manual (part number 000140-001E) for more information.
Note: This document assumes that the user is qualified to
establish a successful Modem connection with the IBM
Host.
INSTALLATION: The Master PC contains the AST CC-432 Synchronous
Communications Adapter, the 5251/12 Emulation program, the
5250GATE.EXE program which is attached to the network. The
Slave PC contains the KERNELGW.EXE program which is attached
to the network.
A. MASTER PC CONFIGURATION
1. Type the following at the DOS prompt for the directory that
contains the AST 5251/12 Emulation Software:
C:\AST> CFG5251 [Enter]
This assumes that the subdirectory name is AST and is located on
the C: Drive.
2. Answer (n)o for MASTER CLUSTER.
3. Answer (n)o for ASYNC DIAL UP.
4. Answer (y)es for MASTER GATEWAY.
5. Answer (n)o for QUICK START.
6. From the AST 5251/12 Configuration Program (CFG5251.EXE) menu,
highlight EDIT and press [Enter].
7. Answer (y)es to modify the configuration file, AST5251.CFG.
8. The EDIT 5250 CONFIGURATION menu will appear with the
following options:
HARDWARE KEYBOARD STATION SECURITY VDISK CUSTOMIZE
CLUSTER GATEWAY QUIT
9. Highlight HARDWARE and press [Enter]. These options will
appear:
HARDWARE DSP_ADAPTER QUIT
10. Select HARDWARE again. This is the HARDWARE selection. All
the options in this section pertain to how the emulation
adapter and communication line is configured.
IRQ BPS NRZI I/O_ADR TRACE SDLC QUIT
11. The BPS, NRZI, TRACE and SDLC options are not set from AST
(default factory settings). The user must set each option
accordingly.
12. The BPS option pertains to the baud rate of the Synchronous
Modem that the user is connecting to the AST CC-432 (AST
5251/12) Communications Adapter. Under this option the
following list will appear and the user should select the
correct rate:
1200 2400 3600 4800 6000 7200 8000 9600 QUIT
13. The NRZI option is host (IBM System 34, 36, 38 or AS/400)
controlled. This is IBM's error correction detection system.
It is either ON or OFF. The user must verify this parameter
with the host's system operator.
14. Under the TRACE option these options will be displayed:
NONE SNA SDLC QUIT
Note: It is recommended that the TRACE option be used as this
is a good trouble shooting tool. With this option
selected the user will observe a fixed set of numbers
followed by incremental numbers on the bottom left and
right hand corners of the display during emulation.
The numbers on the left bottom corner indicate that the
AST package is receiving data from the Modem and the
numbers on the right bottom corner indicate that the
AST adapter is transmitting data to the Modem.
If there are no numbers at either corner then it
indicates that the Modem is not communicating with the
AST CC-432 Adapter. Several probable causes for this
occurring are as follows:
A. Bad or wrong type of cable connecting the Modem to the AST
CC-432 Adapter. User could be using a standard
asynchronous null Modem RS-232 cable that does not have
pin 15 (transmit clock) and pin 17 (receive clock)
connected.
B. IRQ or I/O_ADR conflict between other hardware in the PC
with the AST Adapters.
C. Memory resident (TSR) programs such as; fixed disk
organizers, menu programs, keyboard macro programs, and
etc., that may conflict with the AST 5251/12 Software.
D. The NRZI option does not match between the host and AST
5251/12 Emulation.
15. Highlight SDLC and press [Enter]. This is the controller
station address configured at the host (IBM System 34, 36, 38
or AS/400) site. The user must verify this parameter with the
host's system operator. It is a hexidecimal value and ranges
from 01 through FE. Enter the appropriate value and press
[Enter].
16. Press the ESC key and then highlight DSP_ADAPTER and press
[Enter]. Highlight DSP_ADAPTER on the next screen and press
[Enter]. Next highlight the type of display adapter you are
using and press [Enter]. Example: "Color".
17. Press ESC until you return to the EDIT 5250 CONFIGURATION
menu. Highlight STATION and press [Enter], the following list
will appear:
0 2 3 4 5 6 7 8 9 QUIT
18. Station Address 0 will always be configured as a 5251/12
display type. This cannot be changed. Station Address 1 is
reserved for SNA and is not available. The address scheme for
the AST 5251/12 Station Addresses and the IBM Host Addresses
are as follows:
STATION option (AST) 0 2 3 4 5 6 7 8 9
Ports on IBM 0 1 2 3 4 5 6 7 8
Respectively for an IBM 5251/12 (what AST is emulating) remote
controller where all device codes are configured for
workstation address 0. Page 3-12 of the AST 5251/12 User's
Manual (AST part number 000427-001) displays this scheme in
more detail.
19. Highlight STATION Address 2 and press [Enter]. These options
will appear:
DISPLAY PRINTER CLUS_DISPLAY CLUS_PRINTER
GATE_DISPLAY GATE_PRINTER QUIT
20. Highlight GATE_DISPLAY and press [Enter].
21. Highlight 5251/11 (can also select 5291-1 or 5292-1 but will
use a 5251/11 for this example) and press [Enter]. Press the
ESC key when asked to "enter new session name for station
address 2". For this configuration, session names will not be
used.
22. Repeat steps 19 through 21 as many times as needed to
configure all the station addresses that will be given to the
Gateway. In this example a total of seven sessions are
configured. Make sure that the number of sessions configured
on the AST 5251/12 software matches the number that the IBM
host will be allocating to the Gateway.
23. Highlight the other addresses and select the appropriate
DEVICE TYPE and press [Enter]. Configure the station
addresses as follow:
ADDRESS 0 - 5251/12 DISPLAY IBM-API: OFF
ADDRESS 2 - 5251-1* GATE DISPLAY (NO SESSION NAME)
ADDRESS 3 - 5251-1* GATE DISPLAY (NO SESSION NAME)
ADDRESS 4 - 5251-1* GATE DISPLAY (NO SESSION NAME)
ADDRESS 5 - 5251-1* GATE DISPLAY (NO SESSION NAME)
ADDRESS 6 - 5251-1* GATE DISPLAY (NO SESSION NAME)
ADDRESS 7 - 5251-1* GATE DISPLAY (NO SESSION NAME)
*The type of display can vary depending on what the host is
configured for. The other device types that can be emulated
by the AST 5251/12 software or the 5291-1 and the 5292-1.
Note: This sample is configured so the Slave PCs will be
assigned an address/session on a first-come first-serve
basis which is called "session bidding".
24. When all the required addresses are selected press ESC until
you reach the AST 5250 CONFIGURATION PROGRAM menu. Now save
the MASTER/PASSTHROUGH configuration settings and exit to DOS.
25. Highlight SAVE and press [Enter].
26. The program will ask "Save configuration file: AST5251.CFG
(Y/N)?" Respond "yes" and press [Enter].
This concludes the configuration of the MASTER PC.
B. SLAVE PC CONFIGURATION
You can use one configuration file for all the network node SLAVES
provided that all the Slaves have the same type of display. The
slave software when executed will look at the master configuration
software to see what gateway displays are available.
1. Type the following at the DOS prompt for the directory that
contains the AST 5250 Gateway Software:
C:\GATE\CFG5251G [Enter]
This assumes that the software is located in a subdirectory
named GATE which is on the C: Drive.
2. Answer (n)o for QUICK START
3. From the AST 5250 CONFIGURATION PROGRAM menu, highlight EDIT
and press [Enter].
4. Answer (y)es to modify the configuration file, AST5251G.CFG.
5. The EDIT 5250 CONFIGURATION menu will appear with the
following options:
HARDWARE KEYBOARD STATION SECURITY VDISK CUSTOMIZE
CLUSTER GATEWAY QUIT
6. Highlight HARDWARE and press [Enter]. Highlight DSP_ADAPTER
and press [Enter]. Highlight DSP_ADAPTER again and press
[Enter]. Select the appropriate display adapter for this
particular SLAVE PC (Mono or Color).
NOTE: If the Slaves on the network have various types of
displays (i.e., monochrome and color), different
configuration files (AST5251G.CFG) will need to be
created to match each type of display.
7. Press the ESC key until you return to the EDIT 5250
CONFIGURATION menu. Highlight STATION and press [Enter].
8. STATION ADDRESS 0 is already configured for you.
ADDRESS 0 - 5251/11* DISPLAY IBM-API: OFF
(NO SESSION NAME)
*The device type can also be a 5291-1 or a 5292-1.
For this setup you do not need to delete or reconfigure.
Address 0 on the MASTER PC is taken by the 5251/12 Controller
so this SLAVE PC configuration would then go to the next
available session on the MASTER PC which would be address 2.
Note: We are setting this up for "session bidding", therefore
we do not need to configure the exact station address
for the slave. When the slave software is executed, it
looks at the master configuration to see which gateway
display is available. This is called session bidding.
This is how all the slave configurations should be set
up for session bidding.
9. Press the ESC key until you return to the AST 5250
CONFIGURATION menu. The user will now save the SLAVE PC
configuration settings and exit to DOS.
10. Highlight SAVE and press [Enter].
11. The program will ask "Save configuration file: AST5251G.CFG
(Y/N)?" Respond (y)es and press [Enter].
12. Highlight QUIT and press [Enter].
13. Repeat Steps 1 through 12 at each SLAVE PC as needed.
This concludes the configuration procedure for the SLAVE PC.
C. ENHANCED KEYBOARD CONFIGURATION
If you have an Enhanced Keyboard (Function Keys located across the
top), you need to run an additional configuration program. Without
running emulation, insert the AST5251/12 Terminal Emulation
Diskette 2 of 3.
1. Type: A:[Enter]
2. Type: ASTKBD [Enter]
3. Use your down arrow key to highlight the COUNTRY selection.
4. Use your left arrow key to highlight the UNITED STATES as
country type.
5. Use your down arrow key to highlight the KEYBOARD selection.
6. Use your left arrow key to highlight the ENHANCED-LIKE for the
keyboard type.
7. Use the down arrow key to go to the PROCEED option and press
[Enter].
8. Type the drive letter and subdirectory where the KERNEL.EXE
file is located for the MASTER PC or where the KERNELGW.EXE
file is located for the SLAVE PC
9. Use your down arrow key to get to the EXIT TO DOS option and
press [Enter].
This should be done for each machine that has the enhanced
keyboard.
D. STEPS FOR PROPER EXECUTION
The following steps will show the proper sequence of loading the
emulation and gateway programs:
1. MASTER PC
A. Load your network programs.
B. Load NETBIOS.
C. Execute KERNEL.EXE.
D. Execute GATE5251.EXE.
E. Execute APS.EXE.
2. SLAVE PC
A. Load your network programs.
B. Load NETBIOS.
C. Execute KERNELGW.EXE.
D. Execute APS.EXE.