Quatech | SSP-300 | User`s manual | Quatech SSP-300 User`s manual

SSP-200/300
Single Channel RS-422/485 PCMCIA
Asynchronous Adapter
for PCMCIA Card Standard compatible machines
User's Manual
INTERFACE CARDS FOR IBM PC/AT AND PS/2
QUATECH, INC.
662 Wolf Ledges Parkway
Akron, Ohio 44311
TEL: (330) 434-3154
FAX: (330) 434-1409
www.quatech.com
Warranty Information
Quatech Inc. warrants the
SSP-200/300
to be free of defects for one (5) year from the date of purchase.
Quatech Inc. will repair or replace any adapter that fails to perform under normal operating conditions and
in accordance with the procedures outlined in this document during the warranty period. Any damage that
results from improper installation, operation, or general misuse voids all warranty rights.
The authors have taken due care in the preparation of this document and any associated software
program(s). In no event will Quatech Inc. be liable for damages of any kind, incidental or consequential, in
regard to or arising out of the performance or form of the materials presented herein and in the program(s)
accompanying this document. No representation is made regarding the suitability of this product for any
particular purpose.
Quatech Inc. reserves the right to edit or append to this document or the product(s) to which it refers at any
time and without notice.
Please complete the following information and retain for your records. Have this information available
when requesting warranty service.
Date of purchase:
Model Number:
SSP-200/300
Product Description:
Single Channel Asynchronous RS-422/485
Communications PCMCIA Adapter
Serial Number:
i
Quatech, Inc.
Declaration of Conformity
Manufacturer's Name:
Quatech, Inc.
Manufacturer's Address:
662 Wolf Ledges Parkway
Akron, OH 44311 (USA)
Application of Council Directive:
89/336/EEC
Standards to which
Conformity is Declared:
* EN50081-1
(EN55022)
* EN50082-1
(IEC 801-2, IEC 801-3, & IEC 801-4)
Type of Equipment:
Information Technology Equipment
Equipment Class:
Commercial, Residential, & Light
Industrial
Product Name:
PCMCIA Card
Model Number :
SSP-200/300
SSP-200/300 (Rev. I and later) User's Manual
ii
Table of Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
DOS/Windows 3.x . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
SSP-200/300 Client Driver for DOS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Client Driver Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Command Line Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Common Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
SSP-200/300 Enabler for DOS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Command Line Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Common Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
Windows 95/98/Millennium (ME) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Installing a SSP-200/300 Under Windows 95/98/ME . . . . . . . . . . . . . . . . . . . . . . . . 3-2
SSP-200/300 Resource Settings in Windows 95/98/ME . . . . . . . . . . . . . . . . . . . . . . 3-2
Viewing Resource Settings with Device Manager . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Changing Resource Settings with Device Manager . . . . . . . . . . . . . . . . . . . . . . . 3-3
Frequently Asked Questions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Windows 2000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Installing a SSP-200/300 Under Windows 2000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
SSP-200/300 Resource Settings in Windows 2000 . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Viewing Resource Settings with Device Manager . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Changing Resource Settings with Device Manager . . . . . . . . . . . . . . . . . . . . . . . 4-7
Windows NT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Installing SSP-200/300 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Hardware Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Auxiliary Channel Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Auxiliary Channel: RTS-CTS Handshaking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Auxiliary Channel: Handshaking Disabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Half Duplex Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Termination Resistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
External Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2
iii
Quatech, Inc.
1. Introduction
The SSP-200/300 is a single channel RS-422/RS-485 asynchronous serial adapter for
systems equipped with PCMCIA Type II and/or Type III expansion sockets. The
SSP-200/300 is a PCMCIA Type II (5 mm) card and is PCMCIA PC Card Standard
Specification 2.1 compliant.
The SSP-200/300's serial port is implemented using a 16C750 Universal Asynchronous
Receiver/Transmitter (UART), which is the recommended communications interface
for multitasking environments and with applications involving high data transfer rates.
PCMCIA Card
Cable Assembly
Standard D-9 Female
Figure 1. SSP-200/300 Card and Cable Assembly
The SSP-200/300provides four differential signal pairs (two input and two output):
TxD, RxD, AUXOUT, and AUXIN. TxD and RxD are always present at the connector.
The AUXOUT and AUXIN signals can be used to support RTS/CTS handshaking,
external clocking, or external signal loopback. The default configuration is RTS/CTS
handshaking, with RTS transmitted through AUXOUT and CTS received through
AUXIN. The role of AUXOUT and AUXIN can be set when the SSP-200/300 is
configured.
The SSP-200/300 may be configured to operate in either the Full Duplex or Half Duplex
mode; the SSP-200/300 may be configured so that the output drivers are always
enabled, RTS or DTR enable the output drivers, or the output drivers are automatically
enabled only when data is being transmitted. See the Hardware Information section
for details on these topics.
Introduction
1-1
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2-1
SSP-200/300 (Rev. I and later) User's Manual
2. DOS/Windows 3.x
Two configuration software programs are provided with the SSP-200/300: a Client
Driver, and a card Enabler. Both of these programs are executed from DOS (before
entering Windows) and allow operation of the SSP-200/300 in both the DOS and
Windows 3.x environments. For optimal operation, however, the Client Driver is the
preferred method of installation and configuration. The table below highlights the
differences between these programs.
Client Driver (recommended)
File type: DOS device driver
Enabler
File type: DOS executable
Interfaces to PCMCIA Card and
Socket Services software
(PCMCIA host adapter
independent)
Interfaces directly to Intel
82365SL and other PCIC
compatible PCMCIA host
adapters
Allows automatic
configuration of SSP-200/300
adapters upon insertion (Hot
Swapping)
Does not support automatic
configuration of adapters upon
insertion (Hot Swapping)
Requires PCMCIA Card and
Socket Services software
Does not require PCMCIA
Card and Socket Services
software
Figure 0. Client Driver versus Enabler for DOS/Windows 3.x.
Card and Socket Services software is commercially available from several vendors for
most desktop and laptop PCs. If you are unsure whether Card and Socket Services
software is currently installed on your system, install the SSP-200/300 Client Driver as
discussed in following section. When loaded, the Client Driver will display an error
message if Card and Socket Services software is not detected.
DOS/Windows 3.x
2-2
2.1 SSP-200/300 Client Driver for DOS
In order to use the SSP-200/300 Client Driver, the system must be configured with Card
and Socket Services software. Card and Socket Services software is not provided with
the SSP-200/300 but is available from Quatech.
IMPORTANT:
Some versions of Card and Socket Services dated before
1993 do not support general purpose I/O cards. If after
careful installation of the Client Driver the adapter does
not configure or operate properly, an updated version of
Card and Socket Services may be required.
2.1.1 Client Driver Installation
The following procedure is used to install the SSP-200/300Client Driver:
1. Copy the Client Driver from the SSP-200/300 distribution diskette onto the
system's hard drive.
2. Using an ASCII text editor, open the system's CONFIG.SYS file located in the
root directory of the boot drive.
3. Locate the line(s) in the CONFIG.SYS file where the Card and Socket Services
software is installed.
4. AFTER the line(s) installing the Card and Socket Services software, add the
following line to the CONFIG.SYS file:
DEVICE
=
drive:\path\
SSP231CL.SYS options
where options are the SSP-200/300 Client
Driver command line options discussed on the following pages.
5. Save the CONFIG.SYS file and exit the text editor.
6. Insert the SSP-200/300 into one of the system's PCMCIA slots.
NOTE: Since the SSP-200/300 Client Driver supports "Hot Swapping", it is not
necessary to have the SSP-200/300 installed when booting the system. By
inserting the card before booting, however, the Client Driver will report the
adapter configuration during the boot process thereby verifying the changes
made to the CONFIG.SYS.
7. Reboot the system and note the message displayed when the SSP-200/300
Client Driver is loaded. If the Client Driver reports an "invalid command line
option", correct the entry in the CONFIG.SYS file and reboot the system
again. If the Client Driver reports "Card and Socket Services not found", a
2-3
SSP-200/300 (Rev. I and later) User's Manual
version of Card and Socket Services must be installed on the system or the
SSP-200/300 Enabler program must be used to configure the adapter. If the
Client Driver reports the desired adapter configuration, the installation
process is complete and the SSP-200/300 may be removed and/ or inserted
from the system as desired. On each insertion into the PCMCIA socket, the
SSP-200/300 will be automatically reconfigured according to the command
line options.
2.1.2 Command Line Options
The SSP-200/300 Client Driver accepts up to eight command line arguments from the
user to determine the configuration of theSSP-200/300. If any arguments are provided,
the Client Driver will attempt to configure any SSP-200/300s with the options specified
in the order they are entered on the command line. Each argument must be enclosed in
parenthesis and must be separated from other arguments by a space on the command
line. Within each argument, any or all of the following parameters may be specified
using a comma (no spaces) to separate each parameter:
Baddress
specifies a the base I/O address of the SSP-200/300in hexadecimal. This
address must reside on an even 8-byte boundary. If this option is omitted, a
base address will be assigned by Card and Socket Services.
Iirq
specifies the interrupt level (IRQ) of the SSP-200/300in decimal. irq must be
one of the following values: 3, 4, 5, 7, 9, 10, 11, 12, 14, 15, or 0 if no IRQ is
desired. If this option is omitted, an interrupt level will be assigned by Card
and Socket Services.
Ssocket
specifies which PCMCIA socket the SSP-200/300must be inserted into for
this configuration argument to be used. socket must be in the range 0 - 15. If
this option is omitted, the configuration argument will apply to SSP-200/300
s inserted into any socket.
Odriver
specifies RS-422/485 output driver enable option for the SSP-200/300 port.
The SSP-200/300’s port may be configured for either full duplex or half
duplex operation with this option. If this option is omitted, the default
setting is the RS-422/485 port is configured for full duplex operation with
the RS-422/485 output drivers always enabled. In half duplex mode, the
RS-422/485 transmitter may be enabled and disabled via the RTS (request to
send) or DTR (data terminal ready) signals. Both RTS and DTR are
controlled through the Modem Control Register of the 16750. See the
Hardware Information section for more information.
DOS/Windows 3.x
2-4
Option
o0
o1
o2
o3
Port Output Driver
Always Enabled
DTR Controlled
RTS Controlled
Auto-Toggle
Figure 0. DOS Client Output Enable Options.
H
instructs the client driver to enable the RTS-CTS modem control handshake
on the RS-422/485 port. When modem control handshaking in enabled, the
16C750 UART’s RTS and CTS signals are connected to the RS-422/485
auxiliary channel. The auxiliary channel may then be used for handshaking
between the SSP-200/300’s port and a peripheral device. When modem
control handshaking is disabled, the RTS and CTS signals from the 16C750
UART are looped back to each other. If this option is omitted, the default
setting is RTS-CTS modem control handshake disabled. See the Hardware
Information section for more information.
2.1.2.1 Example 1
DEVICE = C:\SSP-200\ SSP231CL.SYS
In example 1, no command line arguments are specified. The Client Driver will
configure a SSP-200/300 inserted into any socket with a base address and IRQ assigned
by Card and Socket Services. The SSP-200/300 RS-422/485 output drivers will always
be enabled, and RTS-CTS modem control handshaking will be disabled.
2.1.2.2 Example 2
DEVICE = C:\SSP-200\SSP231CL.SYS (b290,i11)
In example 2, a single command line argument is provided. The Client Driver will
attempt to configure a SSP-200/300 inserted into any socket with a base address of
290H and IRQ 11. If address 290H or IRQ 11 is unavailable, the SSP-200/300 will not be
configured. If the Client Driver can successfully configure the SSP-200/300unit, the
RS-422/485 output drivers will always be enabled, and RTS-CTS modem control
handshaking will be disabled.
2-5
SSP-200/300 (Rev. I and later) User's Manual
2.1.2.3 Example 3
DEVICE = C:\SSP-200\SSP231CL.SYS(s0,b300,i5,o2)
In example 3, a single command line argument is provided. The Client Driver will
attempt to configure a SSP-200/300 inserted into socket 0 with a base address of 300H
and IRQ 5. If address 300H or IRQ 5 is unavailable, the SSP-200/300 will not be
configured. In addition, if aSSP-200/300 is inserted into any other socket, it will not be
configured. If the Client Driver can successfully configure the SSP-200/300, the
RS-422/485 output drivers will be enabled and disabled via the RTS signal, and
RTS-CTS modem control handshaking will be disabled.
2.1.2.4 Example 4
DEVICE = C:\SSP-200\SSP231CL.SYS(i5,h,b300)
In example 4, a single command line argument is provided. Because the parameter
order is not significant, the Client Driver will attempt to configure a SSP-200/300
inserted into any socket with a base address of 300H and IRQ 5. If address 300H or IRQ
5 is unavailable, the SSP-200/300 will not be configured. If the Client Driver can
successfully configure the SSP-200/300, the RS-422/485 output drivers will always be
enabled, and RTS-CTS modem control handshaking will be enabled on the RS-422/485
port’s auxiliary channel.
2.1.2.5 Example 5
DEVICE = C:\SSP-200\SSP231CL.SYS (b300,i5) (i10) ( )
In example 5, three command line arguments are provided. The Client Driver will first
attempt to configure a SSP-200/300 inserted into any socket with a base address of
300H and IRQ 5. If address 300H or IRQ 5 is unavailable, the Client Driver will
proceed to the second command line argument and attempt to configure the card with a
base address assigned by Card and Socket Services and IRQ 10. If IRQ 10 is also
unavailable, the Client Driver will proceed to the third command line argument and
attempt to configure the SSP-200/300 with a base address and an IRQ assigned by Card
and Socket Services. If the Client Driver can successfully configure the SSP-200/300, the
RS-422/485 output drivers for will always be enabled, and RTS-CTS modem control
handshaking will be disabled.
DOS/Windows 3.x
2-6
2.1.2.6 Example 6
DEVICE = C:\SSP-200\SSP231CL.SYS (b300,i5) ( ) (i10)
In example 6, the three command line arguments of example 5 have been rearranged.
The Client Driver will first attempt to configure a SSP-200/300 inserted into any socket
with a base address of 300H and IRQ 5. If address 300H or IRQ 5 is unavailable, the
Client Driver will proceed to the second command line argument and attempt to
configure the card with a base address and IRQ assigned by Card and Socket Services.
Since the second command line argument includes all available address and IRQ
resources, the third command line argument will never be reached by the Client Driver.
It is the user's responsibility to place the command line arguments in a logical order.
2.1.2.7 Example 7
DEVICE = C:\SSP-200\SSP231CL.SYS (s0,b300,i5) (s1,b340,i10)
The type of configuration shown in example 7 may be desirable in systems where more
than one SSP-200/300 is to be installed. In this example, the Client Driver will attempt
to configure a SSP-200/300 inserted into socket 0 with a base address of 300H and IRQ
5. If the SSP-200/300 is inserted into socket 1, the Client Driver will attempt to
configure it with base address 340H and IRQ 10. This allows the user to force the
SSP-200/300's address and IRQ settings to be socket specific which may simplify cable
connections and software development. As in the previous examples, however, if the
requested address or interrupt resources are not available, the SSP-200/300 will not be
configured.
2.1.3 Common Problems
Generic Client Drivers:
Many Card and Socket Services packages include a generic client driver (or
SuperClient) which configures standard I/O devices. If one of these generic client
drivers is installed, it may configure the SSP-200/300 causing the SSP-200/300 client
driver to fail installation. In these cases, the user should do one of the following:
1. Modify the operation of the generic client driver to disable the configuration
of modem/serial port cards. Consult the Card and Socket Services
documentation for availability and details of this feature.
2. Place the SSP-200/300 client driver before the generic client driver in the
CONFIG.SYS.
2-7
SSP-200/300 (Rev. I and later) User's Manual
Available Resources:
One function of the Card and Socket Services software is to track which system
resources (memory addresses, I/O addresses, IRQs, etc.) are available for assignment
to inserted PCMCIA cards. Sometimes, however, the Card Services software assumes
or incorrectly determines that a particular resource is used when it is actually available.
Most Card and Socket Services generate a resource table in a file (typically in the form
of an .INI file) which the user can modify to adjust the available system resources.
Consult the Card and Socket Services documentation for availability and details of this
feature.
Multiple Configuration Attempts:
Some Card and Socket Services have a setting which aborts the configuration process
after a single configuration failure (such as a request for an unavailable resource). The
user should change this setting to allow for multiple configuration attempts. Consult
the Card and Socket Services documentation for availability and details of this feature.
Older Versions of Card and Socket Services:
Some versions of Card and Socket Services dated before 1993 do not support general
purpose I/O cards. If after careful installation of the Client Driver the SSP-200/300
does not configure or operate properly, an updated version of Card and Socket Services
may be required. Card and Socket Services software is available from Quatech.
2.2 SSP-200/300 Enabler for DOS
For systems that are not operating PCMCIA Card and Socket Services software, the
SSP-200/300 DOS Enabler may be used to enable and configure the adapter. This
Enabler, SSP231EN.EXE, will operate on any DOS system using an Intel 82365SL or
PCIC compatible PCMCIA host adapter including the Cirrus Logic CL-PD6710 /6720,
the VLSI VL82C146, and the Vadem VG-365 among others.
IMPORTANT:
In order to use the SSP-200/300 Enabler for DOS, the system
MUST NOT be configured with Card and Socket Services
software. If a Card and Socket Services software is installed,
the SSP-200/300 Enabler may interfere with its operation
and with the device(s) it controls.
DOS/Windows 3.x
2-8
The SSP-200/300 Enabler does not support automatic configuration of adapters upon
insertion, more commonly referred to as "Hot Swapping". This means the adapter must
be installed in one of the system's PCMCIA sockets before executing SSP231EN.EXE. If
more than one adapter is installed in a system, the Enabler must be executed separately
for each adapter. Furthermore, SSP231EN.EXE should be executed to release the
resources used by the adapter before it is removed from the PCMCIA socket. Since
PCMCIA adapters do not retain their configuration after removal, any adapter that is
removed from the system must be reconfigured with the Enabler after re-inserting it
into a PCMCIA socket.
IMPORTANT:
The Enabler requires a region of high DOS memory when
configuring a SSP-200/300. This region is 1000H bytes (4KB)
long and by default begins at address D0000H (the default
address may be changed using the "W" option). If a memory
manager such as EMM386, QEMM, or 386Max is installed on
the system, this region of DOS memory must be excluded from
the memory manager's control. Consult the documentation
provided with the memory manager software for instructions
on how to exclude this memory region.
2.2.1 Command Line Options
To configure a SSP-200/300 in the system, the Enabler requires one command line
argument from the user to determine the configuration of the card. This argument must
be enclosed in parenthesis and within the argument, any or all of the following
parameters may be specified using a comma (no spaces) to separate each parameter:
Ssocket
specifies which PCMCIA socket the SSP-200/300 must be inserted into for
this configuration argument to be used. socket must be in the range 0 - 15.
This option is required if the 'R' option is not used.
Baddress
specifies the base I/O address of the SSP-200/300 in hexadecimal. This
address must reside on an even 8-byte boundary. This option is required if
the 'R' option is not used.
Iirq
specifies the interrupt level (IRQ) of the SSP-200/300 in decimal. irq must be
one of the following values: 3, 4, 5, 7, 9, 10, 11, 12, 14, 15, or 0 if no IRQ is
desired. This option is required if the 'R' option is not used.
2-9
SSP-200/300 (Rev. I and later) User's Manual
Waddress specifies the base address of the memory window required to configure the
SSP-200/300. Set address = D0 for a memory window at segment D000,
address = D8 for a memory window at segment D800, etc. Valid settings for
address are C8, CC, D0, D4, D8, and DC. If this option is omitted, a memory
window at segment D000 will be used.
Odriver
specifies RS-422/485 output driver enable option for theSSP-200/300. The
SSP-200/300’s port may be configured for either full duplex or half duplex
operation with this option. If this option is omitted, the default setting is the
RS-422/485 port is configured for full duplex operation with the RS-422/485
output drivers always enabled. In half duplex mode, the RS-422/485
transmitter may be enabled and disabled via the RTS (request to send) or
DTR (data terminal ready) signals. Both RTS and DTR are controlled
through the Modem Control Register of the 16750. See the Hardware
Information section for more information.
Option
o0
o1
o2
o3
Output Driver
Always Enabled
DTR Controlled
RTS Controlled
Auto-toggle
Figure 0. DOS Enabler Output Enable Options.
H
instructs the enabler to enable the RTS-CTS modem control handshake on
the RS-422/485 port. When modem control handshaking in enabled, the
16C750 UART’s RTS and CTS signals are connected to the RS-422/485
auxiliary channel. The auxiliary channel may then be used for handshaking
between the SSP-200/300’s RS-422/485 port and a peripheral device. When
modem control handshaking is disabled, the RTS and CTS signals from the
16C750 UART are looped back to each other. If this option is omitted, the
default setting is RTS-CTS modem control handshake disabled. See the
Hardware Information section for more information .
Before removing a SSP-200/300 from its PCMCIA socket, the Enabler should be
executed to free the system resources allocated when the card was installed. For this
operation the Enabler provides on additional command line option:
R
instructs the enabler to release the resources previously allocated to the
SSP-200/300. When the 'R' option is used, any settings specified by the 'B',
'I', 'O', and 'H' options are ignored.
DOS/Windows 3.x
2-10
2.2.1.1 Example 1
SSP231EN.EXE
In example 1, no command line argument is specified. The Enabler will report an error
and display the proper usage of the command.
2.2.1.2 Example 2
SSP231EN.EXE (s0,b300,i5)
In example 2, the Enabler will configure the SSP-200/300 in socket 0 with a base
address of 300H and IRQ 5 using a configuration memory window at segment D000.
The SSP-200/300 unit's RS-422/485 output drivers will always be enabled, and
RTS-CTS modem control handshaking will be disabled.
2.2.1.3 Example 3
SSP231EN.EXE (i10,h,b340,s1)
In example 3, the Enabler will configure the SSP-200/300 in socket 1 with a base
address of 340H and IRQ 10 using a configuration memory window at segment D000.
The SSP-200/300's RS-422/485 output drivers will always be enabled, and RTS-CTS
modem control handshaking will be enabled on the RS-422/485 auxiliary channel.
2.2.1.4 Example 4
SSP231EN.EXE (s0,b300,i3,wd8)
In example 4, the Enabler will configure the SSP-200/300 in socket 0 with a base
address of 300H and IRQ 3 using a configuration memory window at segment D800.
The SSP-200/300's RS-422/485 output drivers will always be enabled, and RTS-CTS
modem control handshaking will be disabled.
2.2.1.5 Example 5
SSP231EN.EXE (o1,i5,b340,s1)
In example 2, the Enabler will configure the SSP-200/300 in socket 1 with a base
address of 340H and IRQ 5 using a configuration memory window at segment D000.
The SSP-200/300's RS-422/485 output drivers will be enabled and disabled via the DTR
signal, and RTS-CTS modem control handshaking will be disabled
2-11
SSP-200/300 (Rev. I and later) User's Manual
2.2.1.6 Example 6
SSP231EN.EXE (s0,b300,i5,r)
In example 6, the Enabler will release the configuration used by the SSP-200/300 in
socket 0 using a configuration memory window at segment D000. The base address
and IRQ parameters are ignored and may be omitted.
2.2.1.7 Example 7
SSP231EN.EXE (s1,r,wcc)
In example 7, the Enabler will release the configuration used by the SSP-200/300 in
socket 1 using a configuration memory window at segment CC00.
2.2.2 Common Problems
Memory Range Exclusion:
The Enabler requires a region of high DOS memory when configuring aSSP-200/300.
This region is 1000H bytes (4KB) long and by default begins at address D0000H (the
default address may be changed using the "W" option). If a memory manager such as
EMM386, QEMM, or 386Max is installed on the system, this region of DOS memory
must be excluded from the memory manager's control. Consult the documentation
provided with the memory manager software for instructions on how to exclude this
memory region.
Furthermore, some systems use the high memory area for BIOS shadowing to improve
overall system performance. In order for the Enabler to operate, any BIOS shadowing
must be disabled in the address range specified for the configuration window. BIOS
shadowing can usually be disabled through the system's CMOS setup utility.
Socket Numbers:
The Enabler requires the SSP-200/300's socket number to be specified on the command
line and the SSP-200/300 must be inserted into the socket before the Enabler is invoked.
Some vendors number their sockets from 1 to N while other vendors number their
sockets from 0 to N-1. For theSSP-200/300 Enabler, the lowest socket number in the
system is designated socket 0.
Card and Socket Services Software:
In order to use the SSP-200/300 Enabler for DOS, the system MUST NOT be configured
with Card and Socket Services software. If a Card and Socket Services software is
installed, the Enabler may interfere with its operation and with the device(s) it controls.
DOS/Windows 3.x
2-12
For systems configured with Card and Socket Services, the SSP-200/300 Client Driver is
the recommended method of configuration.
2-13
SSP-200/300 (Rev. I and later) User's Manual
3. Windows 95/98/Millennium (ME)
To allow easy configuration of the SSP-200/300, an Windows 95/98/ME "INF"
configuration file has been written for the hardware. It supports the AUXIN/AUXOUT
options and the RS-422/485 output driver enable options for full and half duplex
operation.
3.1 Installing a SSP-200/300 Under Windows 95/98/ME
1. Insert the SSP-200/300 into any available PC Card socket.
2. The first time a new PC Card type is installed the New Hardware Found
window opens. After this first installation Windows 95/98/ME will
automatically detect and configure the card. If the New Hardware Found
window does not open, then skip to the next section, “SSP-200/300 Resource
Settings".
3. The New Hardware Found window provides several options to configure
the SSP-200/300 card. Click the "Search for the best driver for your device"
option button. Click "NEXT" to continue.
4. An "Install from Disk" dialog box should appear. Insert the Quatech COM
CD file, select the correct drive letter and path, and click "OK". Windows
95/98/ME will browse the path for the aforementioned files.
5. During the installation process, it may be required to supply the computer
with the Windows 95/98/ME CD or installation CDs. Insert the CD and click
"OK".
The SSP-200/300 PC Card should now be configured. With the default
configuration, the SSP-200/300's interrupt status register will be enabled, the
16C750 UART’s scratchpad register will be disabled, the RS-422/485 output
drivers will always be enabled, and RTS-CTS modem control handshaking will be
enabled. In the future, Windows 95/98/ME will automatically recognize and
configure the SSP-200/300 in this default configuration.
3.2 SSP-200/300 Resource Settings in Windows 95/98/ME
Windows 95/98/ME maintains a registry of all known hardware installed within the
computer. Inside this hardware registry Windows 95/98/ME keeps track of all the
computer's resources, such as base I/O addresses, IRQ levels, and DMA channels. In
the case of a PC Card (PCMCIA) type board, Windows 95/98/ME configures the new
Windows 95/98/Millennium (ME)
3-1
hardware using free resources it finds within the hardware registry, and updates the
registry automatically.
To view and/or edit hardware devices in Windows 95/98/ME use the system Device
Manager. To access Device Manager double click the System icon in the Windows
95/98/ME control panel, or click the My Computer icon on the Windows 95/98/ME
desktop with the right mouse button and select Properties from the pull down menu.
Consult Windows 95/98/ME on-line help for details on the use of the Device Manager.
3.2.1Viewing Resource Settings with Device Manager
1. Start the Windows 95/98/ME Device Manager.
2. Double click on the hardware class Quatech Comm Adapters to list hardware
devices in the class.
3. The SSP-200/300 “parent device” belongs to this hardware class. The device
name for the SSP-200/300 is Quatech SSP-200/300: RS-422/RS-485 Serial Port
PC Card.
4. Open the Properties dialog for the SSP-200/300 device, then click the
Resources tab to view the Input/Output Range and Interrupt Request
resource allocations.
5. Double click the hardware class Ports (Com and LPT). The Quatech
Communications Port listed in this class is a “child device” of the
SSP-200/300 “parent device.”
6. Open the Properties dialog for the COM port, then click the Resources tab to
view the Input/Output Range and Interrupt Request resource allocations.
These will match those of the “parent device.”
7. Record the COM Port device name (COM1, COM2, etc.) for the SSP-200/300.
This name is required by a Windows 95/98/ME application when accessing a
particular port.
3.2.2Changing Resource Settings with Device Manager
1. Start the Windows 95/98/ME Device Manager.
2. Double click on the hardware class Quatech Comm Adapters to list hardware
devices in the class.
3. The SSP-200/300 “parent device” belongs to this hardware class. The device
name for the SSP-200/300 is Quatech SSP-200/300: RS-422/RS-485 Serial Port
PC Card.
3-2
SSP-200/300 (Rev. I and later) User's Manual
4. Open the Properties dialog for the SSP-200/300 device, then click the
Resources tab to view the Input/Output Range and Interrupt Request
resource allocations.
5. Several predefined Basic Configurations have been included for the
SSP-200/300 (see Figure 5. SSP-200/300 Basic Configuration Table). The
Basic Configurations provide many combinations of the operating modes
and options listed below. See the Hardware Information section of this
manual for complete descriptions.
? RS-422/485 output drivers enable option: The SSP-200/300’s ports may be
configured for either full duplex or half duplex operation with this option.
The default setting is the RS-422/485 ports are configured for full duplex
operation with the RS-422/485 output drivers always enabled. In half duplex
mode, the RS-422/485 transmitter may be enabled and disabled via the RTS
(request to send) or DTR (data terminal ready) signals, or set to enable only
when data is being transmitted (auto-toggle). Both RTS and DTR are
controlled through the Modem Control Register of the 16750.
When the Use Automatic Settings check box is enabled Windows 95/98/ME
will attempt to configure the SSP-200/300 in the order listed in the Basic
Configurations table.
Basic
Configuration
0000*
0001*
0002*
0003*
0004
0005
0006
0007
0008
0009
000A
000B
000C
000D
000E
000F
0010
0011
0012
0013
0014
Auxiliary
Connections**
Loopback
Loopback
Loopback
Loopback
Loopback
Loopback
Loopback
Loopback
Loopback
Handshaking
Clocking
Loopback
Loopback
Loopback
Handshaking
Clocking
Handshaking
Clocking
Handshaking
Clocking
Handshaking
Windows 95/98/Millennium (ME)
I/O Range***
3F8-3FF
2F8-2FF
3E8-3EF
2E8-2EF
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
RS-422/485
Output Drivers
Always Enabled
Always Enabled
Always Enabled
Always Enabled
Always Enabled
Always Enabled
Auto Toggle
RTS Controlled
DTR Controlled
Always Enabled
Always Enabled
Auto Toggle
RTS Controlled
DTR Controlled
Always Enabled
Always Enabled
Auto Toggle
Auto Toggle
RTS Controlled
RTS Controlled
DTR Controlled
Clock
Speed
Normal
Normal
Normal
Normal
Normal
8x
Normal
Normal
Normal
Normal
Normal
8x
8x
8x
8x
8x
Normal
Normal
Normal
Normal
Normal
Scratch
Pad/ ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
3-3
0015
0016
0017
0018
0019
001A
001B
001C
001D
001E
001F
0020
0021
0022
0023
0024
0025
0026
0027
0028
0029
002A
002B
002C
002D
002E
002F
0030
0031
0032
0033
Clocking
Handshaking
Clocking
Handshaking
Clocking
Handshaking
Clocking
Loopback
Loopback
Loopback
Loopback
Loopback
Handshaking
Clocking
Loopback
Loopback
Loopback
Handshaking
Clocking
Handshaking
Clocking
Handshaking
Clocking
Handshaking
Clocking
Handshaking
Clocking
Handshaking
Clocking
Handshaking
Clocking
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
DTR Controlled
Auto Toggle
Auto Toggle
RTS Controlled
RTS Controlled
DTR Controlled
DTR Controlled
Always Enabled
Always Enabled
Auto Toggle
RTS Controlled
DTR Controlled
Always Enabled
Always Enabled
Auto Toggle
RTS Controlled
DTR Controlled
Always Enabled
Always Enabled
Auto Toggle
Auto Toggle
RTS Controlled
RTS Controlled
DTR Controlled
DTR Controlled
Auto Toggle
Auto Toggle
RTS Controlled
RTS Controlled
DTR Controlled
DTR Controlled
Normal
8x
8x
8x
8x
8x
8x
Normal
8x
Normal
Normal
Normal
Normal
Normal
8x
8x
8x
8x
8x
Normal
Normal
Normal
Normal
Normal
Normal
8x
8x
8x
8x
8x
8x
ISR
ISR
ISR
ISR
ISR
ISR
ISR
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
* Indicates “COM” mode addressing. Addresses 3F8, 2F8, 3E8, and 2E8 are the standard
addresses for COM1, COM2, COM3, and COM4, respectively. Windows 95/98/ME enumerates
any COM port at a non-standard address starting with COM5.
** Handshaking indicates RTS routed to AUXOUT, AUXIN routed to CTS, and TCLK routed to
RCLK. Loopback indicates RTS routed to CTS, AUXIN routed to AUXOUT, and TCLK routed to
RCLK. Clocking indicates RTS routed to CTS, AUXIN routed to RCLK, and TCLK routed to
AUXOUT.
*** Any indicates variable value; this value may or may not be user selectable depending on
platform.
6. Select a Basic Configurations that displays "No conflicts" in the bottom
display region titled Conflicting Device List from the drop down list. Some
applications may not be able to access ports higher than COM4. To use the
3-4
SSP-200/300 (Rev. I and later) User's Manual
SSP-200/300 PCMCIA serial ports with these applications you might be
forced to remove other serial communications devices from your system
7. To modify the Interrupt Request setting click the resource name and click the
Change Setting button. An Edit Resource window will open up. Inside this
window click on the up/down arrows to the right of the Interrupt Request
value. This scrolls you through all of the allowable resources for your
hardware. Pay attention to the conflict information at the bottom of the
window. Do not select a value that causes a conflict with any other installed
hardware.
8. If any changes have been made to the SSP-200/300’s configuration the card
will automatically be reconfigured to the new resources specified. Any time
a PCMCIA card of this type is inserted Windows 95/98/ME will attempt to
configure the card at these resource settings. Click the Use Automatic
Settings box to reset this card type for automatic configuration.
3.3 Frequently Asked Questions
Basic Configuration List Not Available:
A problem noted on some systems is after a basic configuration has been manually
selected the basic configurations list for the SSP-200/300 is no longer available. The
solution to this problem is to check the “Use Automatic Settings” box and allow
Windows 95/98/ME to reconfigure the SSP-200/300 card. The basic configurations list
should once again be visible.
Base I/O Address Resource Modification Not Allowed:
The SSP-200/300 is configured to allow only a fixed number of base I/O addresses. To
change the I/O address resources for the SSP-200/300 select another “Basic
Configuration.” Refer to the Basic Configurations table for a list of the availabe I/O
address resources for the SSP-200/300
Windows 95/98/Millennium (ME)
3-5
This page intentionally left blank.
4-1
SSP-200/300 (Rev. I and later) User's Manual
4 Windows 2000
To allow easy configuration of the SSP-200/300, an Windows 2000 "INF" configuration
file has been written for the hardware. This configuration file supports the SSP-200/300
in both addressing modes: block mode and “com” mode. Additionally, the RTS-CTS
modem control handshake option and the RS-422/485 output driver enable option for
full and half duplex operation is supported.
4.1 Installing a SSP-200/300 Under Windows 2000.
1. Insert the Quatech COM CD into an available CD-ROM.
2. Insert the SSP-200/300 into any available PC Card socket.
3. You woll be promted to search for the correct driver. Choose the drive where
the Quatech COM CD is located and select ‘Brwose’ from the ‘Files Needed ‘
windows.
Windows 2000
4-2
4. Double click ‘Serial Port Adapters’
5. Double click ‘Drivers’
4-3
SSP-200/300 (Rev. I and later) User's Manual
6. Double click on ‘Windows 2000, XP, for PCI, PCMCIA, ISA’
7. Click on ‘qserbrd’ and select open
Windows 2000
4-4
8. Select ‘OK’ at the ‘Files Needed’ window\
9. The same process as above in steps 1-9 will apply for the next file ‘qserpt.inf’.
In step 7 be sure to choose ‘qserpt.inf’ and select ‘Open’.
4.2 SSP-200/300 Resource Settings in Windows 2000
Windows 2000 maintains a registry of all known hardware installed within the
computer. Inside this hardware registry Windows 2000 keeps track of all the
computer's resources, such as base I/O addresses, IRQ levels, and DMA channels. In
the case of a PC Card (PCMCIA) type board, Windows 2000 configures the new
hardware using free resources it finds within the hardware registry, and updates the
registry automatically.
To view and/or edit hardware devices in Windows 2000 use the system Device
Manager.
To access Device Manager double click the System icon in the Windows 2000 control panel, or click
the My Computer icon on the Windows 2000 desktop with the right mouse button and select
Properties from the pull down menu. Click on the Hardware tab then click on the Device Manager.
Consult Windows 2000 on-line help for details on the use of the Device Manager
Windows 2000 handles the SSP-200/300 as a "parent/child device".
v The SSP-200/300 is the "parent device" and is listed under the hardware class
Quatech Multiport Serial Devices in the device manager.
v The serial port is a "child device" of the "parent device" SSP-200/300 (Quatech
PCMCIA Serial Port). There is 1 child COM port for the SSP-200/300 (Quatech
4-5
SSP-200/300 (Rev. I and later) User's Manual
PCMCIA Serial Port) which is listed under the hardware class Ports (COM &
LPT).
Windows 2000
4-6
4.2.1 Viewing Resource Settings with Device Manager
1. Start the Windows 2000 Device Manager.
2. Double click on the hardware class Quatech Multiport Serial Devices to list
hardware devices in the class.
3. The SSP-200/300 “parent device” belongs to this hardware class. The device
name for the SSP-200/300 is Quatech SSP-200/300 PCMCIA RS-422/RS-485
Serial Adapter.
4. Open the Properties dialog for the SSP-200/300 device, then click the
Resources tab to view the Input/Output Range and Interrupt Request
resource allocations. Examine and remember the Input/Output Range, then
close the properties window.
5. Double click the hardware class Ports (Com and LPT). The Quatech
PCMCIA Serial Port listed in this class is the “child device” of the
SSP-200/300 “parent device.”
4-7
SSP-200/300 (Rev. I and later) User's Manual
6. Use the COM Port device names (COM5, COM6, etc.) to access any of the
particular serial ports on the SSP-200/300. This name is required by a
Windows 2000 application when accessing a particular port.
4.2.2 Changing Resource Settings with Device Manager
1. Start the Windows 2000 Device Manager.
2. Double click on the hardware class Quatech Multiport Serial Devices to list
hardware devices in the class.
3. The SSP-200/300 “parent device” belongs to this hardware class. The device
name for the SSP-200/300 is Quatech SSP-200/300 PCMCIA RS-422/RS-485
Serial Adapter.
4. Open the Properties dialog for the SSP-200/300 device, then click the
Advanced tab to view the clock rate settings.
Windows 2000
4-8
4-9
SSP-200/300 (Rev. I and later) User's Manual
Clock Mode
Auto
X1
X2
X4
X8
Data Rate Multiplier
Max bps
Description
Auto clock mode enables applications to request
any baud rate up to 921,600. The hardware
921,600
drivers will select the correct clock multiplier
based on the baud rate requested
The X1 clock mode mimics a standard COM port.
The hardware drivers lock the clock to the
115,200
standard rate. The port will run at the baud rate
requested by the application.
The X2 clock mode locks the ports hardware
clock at double the standard rate. The baud rate
the port runs at will always be double the rate
230,400
requested by the applications. This mode is
useful for legacy applicattions which cannot
request baud rates over 115,200
The X4 clock mode locks the ports hardware
clock at four times the standard rate. The baud
rate the port runs at will always be four times the
460,800
rate requested by the application. This mode is
useful for legacy applications which cannot
request baud rates over 115.200.
The X8 clock mode locks the ports hardware
clock at eight times the standard rate. The baud
rate the port runs at will always be eight times the
921,600
rate requested by the application. This mode is
useful for legacy applications which cannot
request baud rates over 115.200.
5. Click the RS-422/485 tab to view the transmitter enable and connector pinout
options.
Windows 2000
4-10
4-11
SSP-200/300 (Rev. I and later) User's Manual
RS-422/485 Connector Setup
RTS routed to CTS, AUXIN routed
to AUXOUT, and TCLK routed to
Loopback All
RCLK. Used when external
handshaking or clocking signals are
not available.
RTS routed to AUXOUT, AUXIN
routed to CTS, and TCLK routed to
Modem Control
RCLK. Used when RTS/CTS
handshaking is required.
RTS routed to CTS, AUXIN routed
to RCLK, and TCLK routed to
AUXOUT. Used to connect ports
Clocks
transmitting at different baud rates.
In order to function, all ports must
have and use this feature.
Receive Control
Receivers are always enabled. In a
Half Duplex mode, you will receive
Always Receive
what you transmit (sometimes
called echo).
Receivers are only enabled when
not transmitting. In a Half Duplex
When NOT Tranmitting
mode, you will not receive what
you transmit.
RS-422/485 Duplex Mode
Transmitters and receivers are
always enabled; ports can send and
Full Duplex
receive simultaneously. Used in
four-wire communication.
RTS is set to enable the transmitters.
Half Duplex using RTS
Used in two-wire communication.
DTR is set to enable the transmitters.
Half Duplex using DTR
Used in two-wire communication
Hardware automatically enables the
transmitters when transmitting.
Transmitters will turn off three
Auto Toggle
bit-times after the last stop bit of the
last character, regardless of baud
rate. Used in two-wire
communication.
Windows 2000
4-12
6. Click the Resources tab to view the Input/Output Range and Interrupt
Request resource allocations. If options that are not available on the
preceding pages are required, a different basic configuration will have to be
selected. To do this, de-select the Use Automatic Settings box and choose the
basic configuration that corresponds to the set of options required.
Basic
Configuration
0000*
0001*
0002*
0003*
0004
0005
0006
0007
0008
0009
0010
0011
4-13
Auxiliary
Connections**
Loopback
Loopback
Loopback
Loopback
Loopback
Loopback
Loopback
Loopback
Loopback
Handshaking
Clocking
Loopback
I/O Range***
3F8-3FF
2F8-2FF
3E8-3EF
2E8-2EF
Any
Any
Any
Any
Any
Any
Any
Any
RS-422/485
Output Drivers
Always Enabled
Always Enabled
Always Enabled
Always Enabled
Always Enabled
Always Enabled
Auto Toggle
RTS Controlled
DTR Controlled
Always Enabled
Always Enabled
Auto Toggle
Clock
Speed
Normal
Normal
Normal
Normal
Normal
8x
Normal
Normal
Normal
Normal
Normal
8x
Scratch
Pad/ ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
SSP-200/300 (Rev. I and later) User's Manual
0012
0013
0014
0015
0016
0017
0018
0019
0020
0021
0022
0023
0024
0025
0026
0027
0028
0029
0030
0031
0032
0033
0034
0035
0036
0037
0038
0039
0040
0041
0042
0043
0044
0045
0046
0047
0048
0049
0050
0051
0052
Loopback
Loopback
Handshaking
Clocking
Handshaking
Clocking
Handshaking
Clocking
Handshaking
Clocking
Handshaking
Clocking
Handshaking
Clocking
Handshaking
Clocking
Loopback
Loopback
Loopback
Loopback
Loopback
Handshaking
Clocking
Loopback
Loopback
Loopback
Handshaking
Clocking
Handshaking
Clocking
Handshaking
Clocking
Handshaking
Clocking
Handshaking
Clocking
Handshaking
Clocking
Handshaking
Clocking
Loopback
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Memory
Mapped
RTS Controlled
DTR Controlled
Always Enabled
Always Enabled
Auto Toggle
Auto Toggle
RTS Controlled
RTS Controlled
DTR Controlled
DTR Controlled
Auto Toggle
Auto Toggle
RTS Controlled
RTS Controlled
DTR Controlled
DTR Controlled
Always Enabled
Always Enabled
Auto Toggle
RTS Controlled
DTR Controlled
Always Enabled
Always Enabled
Auto Toggle
RTS Controlled
DTR Controlled
Always Enabled
Always Enabled
Auto Toggle
Auto Toggle
RTS Controlled
RTS Controlled
DTR Controlled
DTR Controlled
Auto Toggle
Auto Toggle
RTS Controlled
RTS Controlled
DTR Controlled
DTR Controlled
Always Enabled
8x
8x
8x
8x
Normal
Normal
Normal
Normal
Normal
Normal
8x
8x
8x
8x
8x
8x
Normal
8x
Normal
Normal
Normal
Normal
Normal
8x
8x
8x
8x
8x
Normal
Normal
Normal
Normal
Normal
Normal
8x
8x
8x
8x
8x
8x
1x
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
ISR
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
Scratch Pad
* Indicates “COM” mode addressing. Addresses 3F8, 2F8, 3E8, and 2E8 are the standard
addresses for COM1, COM2, COM3, and COM4, respectively. Windows 95/98/ME enumerates
any COM port at a non-standard address starting with COM5.
Windows 2000
4-14
** Handshaking indicates RTS routed to AUXOUT, AUXIN routed to CTS, and TCLK routed to
RCLK. Loopback indicates RTS routed to CTS, AUXIN routed to AUXOUT, and TCLK routed to
RCLK. Clocking indicates RTS routed to CTS, AUXIN routed to RCLK, and TCLK routed to
AUXOUT.
*** Any indicates variable value; this value may or may not be user selectable depending on
platform.
7. Select a Basic Configuration that displays "No conflicts" in the bottom
display region titled Conflicting Device List from the drop down list.
8. Windows 2000 should have chosen an available Interrupt Request setting
automatically when the I/O address range was configured by a Basic
Configuration selection. This default Interrupt Request setting should not
need changed as long as "No conflicts" is displayed in the bottom display
region titled Conflicting Device List. If you are satisfied with Windows 2000
selection then skip the next step.
9. To modify the Interrupt Request setting click the resource name and click the
Change Setting button. An Edit Resource window will open up. Inside this
window click on the up/down arrows to the right of the Interrupt Request
value. This scrolls you through all of the allowable resources for your
hardware. Pay attention to the conflict information at the bottom of the
window. Do not select a value that causes a conflict with any other installed
hardware.
10. If any changes have been made to the SSP-200/300’s configuration the card
will automatically be reconfigured to the new resources specified. Any time
a PCMCIA card of this type is inserted Windows 2000 will attempt to
configure the card at these resource settings. Click the Use Automatic
Settings box to reset this card type for automatic configuration
4-15
SSP-200/300 (Rev. I and later) User's Manual
5 Windows NT
5.1 Installing SSP-200/300
To allow easy configuration of the SSP-200/300 the Quatech Device Manager for
Windows NT has been written for the hardware. This configuration utility supports the
SSP-200/300 only in block addressing mode.
To begin the installation, open Windows Explorer and search for the ‘Setup.exe’
command to install the Quatech Device Manager. <See following Windows Explorer
figure.> (D:\Serial Port Adapters\Drivers\Windows NT 4.0 for PCI, PCMCIA,ISA).
Once the installation is complete an icon will be placed on the desktop.
Windows NT Explorer
Windows NT
5-1
1. Locate and double click the Quatech Device Manager icon on the desktop
Device Manager Icon on Desktop
5-2
SSP-200/300 (Rev. I and later) User's Manual
2. Click the ‘Add’ button at the bottom of the Quatech Device Manager Window
3. Follow the steps for the ‘Add Quatech Hardware Wizard’.
Windows NT
5-3
4. Complete the final steps of the installation, shut down Windows NT and then
insert the PCMCIA Card and re-boot the computer.
Additional help is available online
The SSP-200/300 PC Card should now be configured. In the future, Windows NT will
automatically recognize and configure the SSP-200/300.
Note: Windows NT does not support ‘Plug and Play’ for PCMCIA cards. The PCMCIA
Card must be inserted prior to starting Windows NT and can not be removed and
reinserted while Windows NT is running.
5-4
SSP-200/300 (Rev. I and later) User's Manual
6. Hardware Information
6.1 Auxiliary Channel Configuration
An auxiliary channel is provided which allows for handshaking between the
SSP-200/300 port and a peripheral device. This auxiliary channel may be configured in
one of two ways:
v RTS-CTS handshake enabled.
v handshaking is disabled.
6.1.1 Auxiliary Channel: RTS-CTS Handshaking.
The RTS-CTS handshake may be enabled so that RTS (request to send) is the auxiliary
output signal on AUX OUT+ (pin 1) and AUX OUT- (pin 6). Similarly, CTS (clear to
send) is the auxiliary input signal on AUX IN+ (pin 5) and AUX IN- (pin 9). This
configuration is shown below.
16C750
UART
RS-422/485
Drivers/Receivers
DATA OUT
TXD
Driver
DATA IN
RXD
Receiver
AUX OUT
-RTS
Driver
-CTS
Receiver
AUX IN
+
+
+
+
-
Figure 0. Auxiliary Channel RTS-CTS Handshaking
Hardware Information
6-1
6.1.2 Auxiliary Channel: Handshaking Disabled.
The SSP-200/300 ports may be configured so that the RTS-CTS handshake is disabled.
This is the default configuration. In this configuration, RTS and CTS from the 16C750
UART will be looped back to each other. In addition, the auxiliary output and input
signals will be looped back to each other. This configuration is shown below:
16C550
UART
RS-422/485
Drivers/Receivers
DATA OUT
TXD
Driver
RXD
Receiver
-RTS
Driver
DATA IN
AUX OUT
AUX IN
-CTS
Receiver
+
+
+
+
-
Figure 0. Auxiliary Channel Handshaking Disabled
6-2
SSP-200/300 (Rev. I and later) User's Manual
6.2 Half Duplex Operation
The SSP-200/300’s ports may be configured for either full duplex or half duplex
operation. By default, the RS-422/485 ports are configured for full duplex operation
with the RS-422/485 output drivers always enabled.
In half duplex mode, the RS-422/485 transmitter may be enabled and disabled via the
RTS (request to send) or DTR (data terminal ready) signals. Both RTS and DTR are
controlled through the Modem Control Register of the 16750.
3 Options:
Data Out
Half Duplex
+
RS-422/485
Driver
-
-RTS
-DTR
MUX
16C550
Active Low
Output Enable
Aux Out
Full Duplex
RS-422/485
Driver
+
-
NOTE: One of these three options must be selected via
software configuration. Full duplex operation is
the default mode.
Figure 0. RS-422/485 Driver Enable Options
If RTS is selected as the signal to enable the output drivers, setting 'bit 1' of the Modem
Control Register (to logic '1') will enable the output drivers and clearing 'bit 1' of the
Modem Control Register (to logic '0') will force the outputs into a high impedance state.
Similarly, if DTR is chosen as the signal to enable the output drivers setting 'bit 0' of the
Modem Control Register (to logic '1') will enable the output drivers and clearing 'bit 0'
of the Modem Control Register (to logic '0') will force the outputs into a high
impedance state.
Hardware Information
6-3
Selection of half duplex mode operation is dependent upon the configuration software
and/or the operating system used. Each of these, however, ultimately control the half
duplex mode by accessing the PCMCIA Configuration Register on the SSP-200/300.
CAUTION:
When operating in half duplex mode, the transmitter output
drivers must be disabled before receiving any information.
Failure to do so will result in two output drivers being
connected together which may cause damage to the adapter,
the computer, and/or the peripheral equipment.
6-4
SSP-200/300 (Rev. I and later) User's Manual
6.3 Termination Resistors
No termination resistors are provided on the SSP-200/300 ports. Both output and input
signals are connected only to the external connector. Any termination which is required
must be added externally.
RS-422/485 Receiver
RXD+
+
Rt
-
RXD-
RS-422/485 Receiver
AUXIN+
+
Rt
-
AUXIN-
Recommended Termination Resistor Values
RS-422
100 ohm 1/2W resistor
RS-485
60 ohms total resistance
(120 ohms at each end)
Figure 0. RS-422/485 Termination
Hardware Information
6-5
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7-1
SSP-200/300 (Rev. I and later) User's Manual
7. External Connections
An adapter cable is included with the SSP-200/300 to convert the 9-pin PCMCIA output
connector into a standard D-9 female connector, data terminal equipment (DTE), as
shown in the figures below.
Standard D-9
(Female)
Figure 0. SSP-200/300 Adapter Cable.
AUXOUT+
1
DATAOUT+
2
GND
3
DATAIN+
4
AUXIN+
5
6
AUXOUT-
7
DATAOUT-
8
DATAIN -
9
AUXIN -
D-9 Female Connector
Figure 0. RS-422/485 Signal Assignment.
External Connections
7-2
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8-1
SSP-200/300 (Rev. I and later) User's Manual
8. Specifications
Bus Interface
PCMCIA
PC Card Standard 2.1 compliant
Physical Dimensions
Type II PCMCIA card (5mm)
Maximum Baud Rate
921.6K
Power Requirements
30 mA (maximum)
+5 volts
Connector
Adapter to standard female D-9
Specifications
20 mA (typical)
8-2
SSP-200/300
User's Manual
Revision 3.11
May 2002
Quatech, Inc.
P/N 940-0075-311
SSP-200/300 (Rev. I and later) User's Manual
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