Lava Computer Computer Hardware MOKO L75 2 User Manual

LavaPort-Quad  
Installation Manual  
LAVA COMPUTERS  
QUAD SERIAL PCI  
MADE  
IN  
PN MOKO S-1  
MADE IN JAPAN  
CANADA  
0255351  
P.N. MOKO L75.2  
Rev. B00  
Contents  
Quick Install  
4
5
Installing the LavaPort-Quad Hardware  
Windows Installation  
6
6
· Windows Driver Installation  
· Changing Port Numbers (Com 3/4/5 etc.)  
· Setting LavaPort Data Rates  
· Setting LavaPort FIFO Control  
· Flow Control  
11  
13  
15  
17  
19  
· Lava Modem Speed Set - for 230.4 kbps  
Windows NT 4.0 Installation  
· Nt4 Driver Installation  
· High Speed Data Rates  
21  
21  
23  
Note: Instructions for installing the LavaPort-Quad  
under DOS or Windows 3.x may be found in the  
ReadMe file in the Win3.11 subdirectory of  
your LavaPort-Quad diskette.  
3
Quick Install  
Windows95/98  
1. With the power off, insert the LavaPort-Quad card into any free PCI  
slot.  
2. Launch Windows - new hardware will be found.  
3. When prompted, insert the LavaPort-Quad installation diskette and  
select the fileLava.infin either the root or the Win95 subdirectory.  
(If the diskette is not found you may have to manually type  
“A:\WIN95\”).  
4. After Windows has booted, Click the Start button, then Settings,  
Control Panel, System, Device Manager, Ports.The LavaPort-Quad  
ports will be listed as four of your Com Ports. ClickPropertiesto  
change the default settings as desired.  
5. If desired, install the Lava Com Port Redirect and Lava Modem Speed  
Set utilities to change the Com numbers of your ports, and to  
automate modem speed settings.  
4
Hardware Installation  
1. Before opening the casing of your computer, make sure that all  
power is off.  
2. Locate an unused PCI slot and insert the LavaPort-Quad into it.  
Ensure that it is well seated.  
3. Screw the metal backplane of the LavaPort-Quad board to your PC’s  
casing and replace the machine’s cover.  
4. Connect your modem cable to the whichever port on the LavaPort-  
Quad that you would like to use first and turn the PC on.  
5
Windows Installation  
Windows Driver Installation  
Note: Make sure that you are installing the correct LavaPort-Quad  
drivers for the appropriate operating system.  
DO NOT install NT or Windows 3.x drivers under other  
versions of Windows  
1. With the power turned off, insert the LavaPort-Quad card into any  
free PCI slot in your PC. Make sure the card is well seated. Insert the  
bracket with Ports 3 and 4 into a free slot. If you must detach the  
cables from the card to do so, be sure to re-install the cables back  
onto the card with the red wire corresponding to the1on the  
board.Turn your PC on and start Windows.  
2. Windows will automatically detect the LavaPort-Quad as a new PCI  
Serial Controller and ask you to insert the Lava Installation Diskette.  
The installation files are located in either the root or the Win95  
subdirectory of this disk. On some PC’s you may have to manually  
type A:\WIN95 when prompted for the Lava Installation Diskette.  
3. After the necessary files have been copied,Windows will complete  
the full installation of the  
. During this process, two  
LavaPort-Quad  
LavaPort-Quad Parents will be created in Device Manager under  
Multi-Function Adapters, and four child ports will be created under  
Control Panel | System | Device Manager | Ports.  
6
4. The LavaPort-Quad hardware appears in Device Manager in two  
places: under the Multi-function Adapters tree and as part of the  
Ports tree. Please note that any changes to the Resources (I/O  
Address & IRQ) used by any one of the four ports on the Lava  
Quattro-PCI must be made through the Resources page of the  
appropriate LavaPort-Quad PARENT - not through the individual  
Ports pages.  
Modifying I/O Address and IRQ Resources is NOT recommended.  
7
5. Click on Ports and select one of the ports listed under the heading  
LavaPort PCI.  
6. Click Properties.The following screen will appear:  
8
7. Click the Resources tab. A screen similar to the following  
will appear:  
Note: Do not be alarmed if Windows reports  
an I/O Range or IRQ conflict between the LavaPort-Quad  
and some other device in your PC.The LavaPort-Quad is a  
fully compliant PCI device, and therefore allows for the  
sharing of IRQ and I/O Resouces between devices.  
9
The LavaPort-Quad hardware appears in Device Manager in two places:  
under the Multi-function Adapters tree and as part of the Ports tree.  
Please note that the Resources (I/O Address & IRQ) used by the  
LavaPort-Quad can only be modified through the LavaPort Parent  
device - listed under Multi-function Adapters.  
Modifying I/O Address and IRQ Resources is NOT recommended.  
If you wish to change the Com number of either one of the ports on the  
LavaPort-Quad (e.g. Assign Port 1 to be Com 3 instead of the default  
Com 6), please use the Lava Com Port Redirector Utility.This program  
will allow you to change the numbering of your ports without changing  
I/O address resources.  
Interrupt Resources may be modified for the LavaPort Parent device (see  
Device Manager - Multi-function Adapters), but not for individual ports  
because all four ports on the LavaPort-Quad share one IRQ. Please note  
that interrupt changes require a reboot to take effect.  
10  
Changing the Com numbering of your Ports  
Unless you already have more than 4 Com Ports installed in your PC,  
Windows will by default configure the LavaPort-Quad ports as Com5  
through Com8. If you wish to change the Com number of any one of  
these ports (e.g. Assign Port A to be Com 3), please use the Lava Com  
Port Redirector Utility included in theUtils“ subdirectory of your Lava  
Installation Diskette.This may be necessary because some  
communications applications programs do not recognize Port  
designations beyond Com 4.The Lava Com Port Redirect utility will  
allow you to change the Com numbering of your ports without  
changing I/O address resources.  
To install the Lava Port Redirect utility on your hard drive, insert the  
LavaPort diskette into your floppy drive, click Start, Run and type  
A:\Utils\Setup.  
11  
12  
Setting LavaPort Data Rates in Windows  
The data rate of the LavaPort may be set using the Bits per Second pull  
down menu.  
Please note that this menu will also appear when setting thePort  
Propertiesin any communications application, and may have to be set  
independently of your Control Panel settings. Control Panel settings  
may not necessarily be linked to those of your Communications  
Application. For example, Port speeds in Dial-Up Networking are  
controlled independently of speed settings in Device Manager.  
For optimum performance, always verify that your LavaPort is set to the  
maximum speed supported by your modem, and that both speed  
settings are the same in every application.  
Please note that the setting of Communications Port Data Rates is often  
the most confusing of tasks encountered by modem users. For this  
reason, Lava has included the Lava Modem Speed Set utility in the Utils  
subdirectory of your LavaPort diskette. Lava strongly recommends using  
this utility for all LavaPort-to-modem connections.  
13  
14  
Setting LavaPort FIFO Control in Windows  
15  
Each of the LavaPort-Quad’s four ports incorporates a 64-byte FIFO (first-  
in-first-out) buffer.  
The FIFO control tabs set the buffertriggerlevels.When the buffer is  
filled to its trigger level with the selected number of bytes, the CPU will  
be interrupted and asked to either reload the buffer (for transmission),  
or retrieve data from the buffer (for reception).  
Most efficient data transmission occurs when the CPU is interrupted  
infrequently. For each interrupt, the CPU can then service the buffer with  
larger data blocks: during transmission, it can place a large burst of data  
into the buffer, and during reception it can retrieve a large block from  
the buffer and then continue multi-tasking.  
Ideally therefore, Receive triggers should be set as high as possible and  
Transmit triggers as low as possible.  
However, if the Transmit trigger levels are set too low, or Receive triggers  
too high, and the CPU is busy when an interrupt is called by the  
LavaPort, a short period of inactivity may occur between the port and  
the modem.This will reduce effective transmission/reception speeds.  
Optimum buffer settings are dependent on your modem speed, your  
CPU speed, and the amount of multi-tasking that occurs while online.  
For a fast modem and fast CPU performing few multi-tasking functions,  
set transmit triggers low and receive triggers high. If multi-tasking while  
online, set transmit triggers higher and receive triggers lower.  
16  
Setting LavaPort Flow Control in Windows  
Flow Control refers to the type of signaling that is used between the  
modem and the LavaPort.  
If you are connecting the LavaPort to a modem or ISDN terminal  
adapter, use the default setting of Hardware (RTS/CTS) flow control.  
Software Flow Control (Xon/Xoff) is used only for connecting the  
LavaPort to a non-modem serial device (e.g. Using a null-modem cable  
to connect to another Com Port).  
17  
18  
Lava Modem Speed Set for Windows  
The LavaPort-Quad supports data rates up to 460.8 kbps, including  
115.2 kbps and 230.4 kbps. However, not all modems support Com Port  
rates above 115.2 kbps.  
If your modem does not support higher data rates and you select a  
higher data rate in the LavaPort Properties,Windows will automatically  
default to the slowest supported rate in the chain.  
Some modems do support higher data rates but require special settings  
(AT Commands) and INF files for configuration. Lava has included a  
software utility calledLava Modem Speed Setwhich automates these  
functions and allows for easy speed reconfiguration.This utility may be  
found in the Utils subdirectory of your LavaPort diskette, and is  
constantly being updated to support more modems. Please check the  
To install the Lava Modem Speed Set utility on your hard drive, insert the  
LavaPort diskette into your floppy drive, click Start, Run and type  
A:\Utils\Setup.  
19  
20  
Windows NT 4.0 Installation  
Note: Make sure that you are installing the correct LavaPort-Quad  
drivers for the appropriate operating system.  
DO NOT install drivers for other Windows versions  
under Windows NT  
Windows NT Driver Installation  
1. Once the LavaPort-Quad is installed in your PC, turn on your  
computer and start NT.  
2. Place the LavaPort-Quad installation diskette into your floppy drive  
and select Run from the Start Menu.When prompted type:  
A:\NT4.0\Setup.  
3. After the necessary files have been copied, select My Computer and  
start Control Panel. A new icon will appear calledLavaPort.This  
applet should now be used to configure ALL Com Ports in your PC -  
not just LavaPorts.  
21  
Please note that Com 1 may not appear in this applet if you have your  
mouse attached to Com 1.  
22  
Setting a 230.4 kbps Data Rate  
The LavaPort-Quad supports data rates up to 460.8 kbps, including  
115.2 kbps and 230.4 kbps. However, not all modems support Com Port  
rates above 115.2 kbps.  
If your modem does not support higher data rates and you select a  
higher data rate in the LavaPort-Quad Properties,Windows will  
automatically default to the slowest supported rate in the chain.  
Some modems do support higher data rates but require special settings  
(AT Commands) and setup files for configuration. Contact your modem  
manufacturer for details.  
NOTE: Lava’s technical support department has tested the LavaPort-  
Quad with several modems, and we have posted instructions on  
configuring such modems for higher speed data rates on our web site.  
Please check www.lavalink.com,Tech Support, FAQ for details.  
23  
Lava  
Technical Support  
9:00 am to 5:30 pm Monday to Friday (Eastern Time)  
Tel: +416 674-5942  
Fax: + 416 674-8262  
Lava Computer MFG Inc.  
This device complies with part 15 of the FCC Rules. Operation is subject  
to the following conditions: (1) This device may not cause harmful interference,  
and (2) this device must accept any interference received, including interference  
that may cause undesired operation.  
Lava Computer MFG Inc. 908 Niagara Falls Blvd. #629. North Tonawanda NY 14120-2060  

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