Bay Technical Associates 5218H Manuale utente
OWNER'S MANUAL
H-SERIES
MULTIPORT
CONTROLLERS
525H
528H
529H
5218H
BayTech publication #U140E043-04
Thank you for selecting a BayTech multiport controller.
The data provided in this Owner's Manual explains the various ways
you can operate your unit and configure it to your own computer
system. We suggest that you read this manual carefully before
attempting to install your multiport controller and that you place
special emphasis on correct cabling and configuration. If you have
any problems with your installation, please contact a BayTech
applications engineer for assistance.
BayTech also manufactures data communications devices that
provide buffered and non-buffered peripheral sharing. If you would
like information on any of these models, please contact BayTech
Sales/Service.
We welcome any comments you may have about our multiports. And
we hope that you will continue to look to BayTech for your data
communications needs.
NOTE: The information contained in this document is subject to
change without notice.
Copyright 1993 by Bay Technical Associates, Inc.
IBM PC, IBM PC/AT, IBM PC/XT are products of International
Business Machines Corporation.
All products or company names are trademarks of their respective
holders.
TABLE OF CONTENTS
1 GENERAL INFORMATION........................................................................ 1
2 SPECIFICATIONS ..................................................................................... 4
3 INSTALLATION.......................................................................................... 6
3.1 UNPACKING ................................................................................ 6
3.2 UTILITY SOFTWARE DISKETTE................................................ 6
3.3 POWER........................................................................................ 7
3.4 FACTORY DEFAULTS................................................................. 8
4 CABLING.................................................................................................... 9
5 OPERATION............................................................................................ 11
5.1 USER-PROGRAMMABLE OPERATIONS ................................. 11
5.1.1 THE SERIAL PORT CONFIGURATION....................... 11
5.1.2 THE MESSAGE TERMINATING CHARACTER........... 12
5.1.3 SET DATA BLOCK LENGTH........................................ 12
5.1.4 THE CONTROL CHARACTER..................................... 12
5.1.5 THE MODES OF OPERATION..................................... 13
5.1.5.1 MODE OF OPERATION 1............................... 13
5.1.5.2 MODE OF OPERATION 2............................... 13
5.1.5.3 MODE OF OPERATION 3............................... 14
5.1.5.4 MODE OF OPERATION 4............................... 14
5.1.5.5 MODE OF OPERATION 5............................... 14
5.1.5.6 MODE OF OPERATION 6............................... 15
5.2 OPERATING IN THE DIFFERENT MODES............................... 15
5.2.1 OPERATING IN MODE 1.............................................. 16
5.2.2 OPERATING IN MODE 2.............................................. 17
5.2.3 OPERATING IN MODE 3.............................................. 18
5.2.4 OPERATING IN MODE 4.............................................. 18
5.2.5 OPERATING IN MODE 5.............................................. 19
5.2.6 OPERATING IN MODE 6.............................................. 19
5.3 BINARY MODE........................................................................... 20
5.4 BREAK CONDITION .................................................................. 20
5.5 DATA FLOW CONTROL............................................................ 21
5.5.1 525H AND 529H ........................................................... 21
5.5.2 528H AND 5218H ......................................................... 23
6 CONFIGURATION ................................................................................... 25
6.1 MAIN CONFIGURATION MENU................................................ 25
6.2 STATUS...................................................................................... 26
6.3 SET SERIAL PORT CONFIGURATION..................................... 27
6.4 SET MESSAGE TERMINATE CHARACTER............................. 29
6.5 SET DATA BLOCK LENGTH ..................................................... 30
6.6 SET CONTROL CHARACTER................................................... 31
6.7 SET MODE OF OPERATION..................................................... 32
6.8 EXIT............................................................................................ 32
6.9 NON-VERBOSE MODE ............................................................. 33
7 MAINTENANCE....................................................................................... 36
7.1 RETURNS TO THE FACTORY.................................................. 36
7.2 REPACKING FOR SHIPPING.................................................... 36
8 TECHNICAL SUPPORT........................................................................... 37
9 FEDERAL COMMUNICATIONS COMMISSION RADIO FREQUENCY
INTERFACE STATEMENT...................................................................... 38
APPENDIX A
TROUBLESHOOTING ............................................................................. 39
APPENDIX B
INDEX ...................................................................................................... 44
The BayTech H-Series multiport controllers are flexible, multi-function
data acquisition and control units that provide cost effective data
communications for applications that require control of multiple
peripherals from a single host computer. Designed with flexibility in
mind, the H-Series controllers can be programmed to provide full
duplex communication between host and peripheral or can provide
real-time data acquisition from remote peripherals. In a typical
application, the host port may be connected to such devices as bar
code readers, cash registers, fire alarms, numerical machines,
modems, plotters, printers, security systems, and terminals.
The host computer system may individually select up to seventeen
peripheral devices and send data to the selected device. The 525H
interfaces four peripheral devices to a single host device, the 528H
and 529H interface eight peripherals, and the 5218H interfaces
seventeen peripherals. All H-Series models will simultaneously
multiplex incoming data from peripheral devices to be transmitted to
the host system. The method of data transmission from the
peripheral devices to the host system is dependent upon the mode of
operation.
The H-Series models feature six user-selectable modes of operation.
The six modes of operation are:
Mode 1 Full Duplex Communication - Allows a single host
computer to switch between a maximum of seventeen
peripheral devices. Provides bidirectional data transfer
between the host computer and the selected peripheral
device. Data received from non-selected peripheral
devices is stored in a buffer until the port is selected.
Mode 2 All messages from all ports - Provides automatic
multiplexing of all messages from all peripheral devices.
Data is buffered until a terminating character is received
or until the buffer fills. The messages are then sent to
the host device preceded by a port identification code.
2
Mode 3 Single message from all ports - Same as Mode 2,
except that a single message from all peripheral devices
is sent to the host device upon request.
Mode 4 All messages from selected port - Same as Mode 2,
but with specific port selection.
Mode 5 Single message from selected port - Same as Mode
3, but with specific port selection.
Mode 6 Time division multiplexing - Provides automatic
multiplexing of data from peripheral devices by
continuously scanning all ports to check for characters in
the receive buffers. If a receive buffer contains data, it
is transmitted through the host port in data blocks with
each data block preceded by a port identification code.
Transmission continues until the buffer is empty or until
a user-specified data block length has been transmitted.
In addition to the modes of operation, you may select the serial port
configuration (baud rate, word size, stop bits, parity and XON/XOFF),
the message terminate character, the data block length, and the
control character. These configuration changes are accomplished by
entering the menu-driven configuration mode. Changes are saved in
non-volatile memory. The H-Series models will translate between
peripheral devices of different configurations.
Figure 1
below shows six applications, one for each mode of
operation.
Figure 1
4
INTERFACE: EIA-232C (CCITT V.24), -12v mark, +12v
space. Optional EIA-422A (Option 17) and current loop
(Option 12).
TRANSMISSION: Asynchronous.
FACTORY POWER-UP DEFAULT CONFIGURATIONS:
Baud rate: 9600.
Word size: 8 bits.
Parity: None.
Stop bits: 1.
XON/XOFF: Disabled.
Control character: Control-T (14 Hex).
Data block length: 32 characters.
Terminating character: Carriage Return (0D Hex).
Mode of operation: Mode 1 - Port expansion/sharing.
USER-PROGRAMMABLE CONFIGURATIONS:
Easy to configure using on-screen menus through the
host port. Choices are saved in non-volatile memory to
become the new power-up default configuration.
Baud rate: 110, 135, 300, 600, 1200, 2400, 4800,
9600. 19200 is available on the 525H only.
Other rates optional.
Word size: 5, 6, 7 or 8 bits.
Parity: Even, odd or none.
Stop bits: 1, 1 1/2 or 2.
XON/XOFF: Enabled or disabled.
Control character: Any code from 00 Hex to 7F Hex.
Terminate character: Any code from 00 Hex to
7F Hex.
Data block length: 1 to 250 characters.
Mode of operation: 1 through 6.
BUFFER SIZE: 525H/529H - 3.7K Rx/256 byte Tx per port
standard; the 525H optionally available with 7.7K Rx/256
byte Tx per port.
528H/5218H - 256-byte Rx/256-byte Tx per port.
POWER: 525H - 115 VAC, 50/60 Hz, maximum .2A.;
optional 230 VAC, 50/60 Hz, maximum .1A;
528H/529H/5218H -115 VAC, 50/60 Hz., maximum
.3A.; optional 230 VAC, 50/60 Hz., maximum .2A.
ENVIRONMENT: 0 degrees to 50 degrees C temperature;
5% to 95% humidity.
DIMENSIONS: 525H - 8 x 7 1/2 x 2 1/4 inches;
528H/529H - 10 1/8 x 8 x 3 inches;
5218H - 16 3/4 x 10 1/8 x 3 1/2 10 inches.
WEIGHT: 525H - 3 lbs.; 528H/529H - 5 lbs.,
5218H - 9 1/2 lbs.
INDICATORS: 1 green power LED; red port connection
status LEDs.
CONNECTORS: DB-25 female DCE ports; any combination
of DTE (male) DCE (female) ports optional.
HANDSHAKING: CTS/DTR; selectable XON/XOFF.
UL AND CSA LISTED
MOUNTING: Desk-top standard; rack-mount accessories
optional.
WARRANTY: One full year.
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