Moxa Technologies 1220 User Manual

NPort 1220/1240 USB-to-Serial Hub  
User’s Manual  
Third Edition, November 2005  
Moxa Technologies Co., Ltd.  
Tel:  
+886-2-8919-1230  
Fax: +886-2-8919-1231  
MOXA Technical Support  
Worldwide:  
The Americas  
Table of Contents  
Overview.................................................................................................1-2  
Package Checklist..................................................................................1-2  
Product Features....................................................................................1-2  
Panel Layout...........................................................................................1-5  
Dimensions.............................................................................................1-6  
DIP Switch Settings................................................................................1-7  
Installing the Driver.................................................................................2-2  
Overview.................................................................................................3-2  
Utilities ....................................................................................................3-2  
1
Chapter  
1
Introduction  
Welcome to MOXA NPort 1220/1240 USB-to-Serial Hub. NPort 1220 provides 2 RS-422/485  
serial ports and NPort 1240 provides 4 RS-232 serial ports.  
The following topics are covered in this chapter:  
Overview  
Package Checklist  
Product Features  
Product Specifications  
 
NPort 1200/1240 User’s Manual  
Introduction  
Overview  
NPort 1200 Series USB to serial servers provide an extremely convenient means of connecting  
serial devices to a PC. In fact, you don’t even need to power-down the PC. Just install the software  
that comes with the product, and then connect your serial devices directly to the NPort.  
NPort 1200 Series products are compliant with both USB 1.0 and 1.1 specifications, are  
compatible with USB 2.0, and meet the 12 Mbps full speed requirement.  
More and more peripherals are connected by the Ethernet or USB interface. The problem is how to  
integrate these different interfaces. Today’s solution is to connect all devices using the open  
standard Ethernet and USB. The total cost of ownership is reduced, not only in short term  
hardware investment, but also in long term management and integrating cost.  
The NPort 1200 Series supports both bus power and external power via an adapter. Bus power is  
adapted for laptop or workstation connections that support 500 mA output for USB devices.  
External power is adapted for those USB hubs that can only output 100 mA of current.  
Package Checklist  
MOXA NPort 1220/1240 products are shipped with the following items:  
Standard Accessories  
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1 NPort 1240 4-port USB to RS-232 HUB, or NPort 1220 2-port USB to RS-422/485 Hub  
NPort 1200 Series Document & Software CD  
NPort 1220/1240 Quick Installation Guide  
Product Warranty Booklet  
Optional Accessories  
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DK-35A  
CB-USBAMB-1M  
DIN-Rail Mounting Kit (35 mm)  
USB A type to B type Cable, 1m  
NOTE: Notify your sales representative if any of the above items is missing or damaged.  
Product Features  
NPort 1240 Series products enjoy the following features:  
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Expand to 4 RS-232 ports (NPort 1240) or 2 RS-422/485 ports (NPort 1220) through USB  
Hot plug and play  
No additional I/O or IRQ required  
RS-232 (NPort 1240) and RS-422/485 (NPort 1220) speed up to 115.2 Kbps  
Supports USB 1.1, full rate speed up to 12 Mbps  
Built-in 16 KV ESD Surge Protection  
Supports Windows 98/ME/2000/XP drivers  
Supports both bus power and external power  
NPort 1220/1220I: Supports 4-wire RS-422/485 and 2-wire RS-485 applications  
NPort 1220I: Supports 2 KV Isolation Protection  
1-2  
 
NPort 1200/1240 User’s Manual  
Introduction  
Product Specifications  
NPort 1240  
USB  
Compliant with USB 1.1, 1.0  
USB 2.0 backwards compatible  
Connector  
USB type B  
Speed  
Full speed 12 Mbps  
Serial  
No. of Ports  
Interface  
4
RS-232: TxD, RxD, RTS, CTS, DTR, DSR, GND  
Connector  
DB9 Male  
FIFO  
64 bytes  
Serial line protection  
16 KV ESD for all signals  
Serial Communication Parameters  
Parity  
None, Even, Odd  
Data bits  
Stop bit  
Flow Control  
Speed  
7, 8  
1, 2  
ADDC (Auto Data Direction Control)  
600 to 115.2 Kbps  
Power Requirements  
Power Input  
12 to 48 VDC (External) or 5 VDC (Bus power)  
BUS: 172 mA @ 5 VDC  
Power Consumption  
Ext. PWR: 117 mA @ 12 VDC  
Mechanical Specifications  
Material  
ABS  
Gross Weight  
220±5 g (0.48 lb)  
Environmental  
Operating Temperature  
Storage Temperature  
Operating Humidity  
0 to 55°C (32 to 131°F)  
-20 to 85°C (-4 to 185°F)  
5 to 95% RH  
Agency Approvals  
EMC  
FCC (class B), CE (Class B)  
UL, CUL, TÜV  
Safety  
Warranty  
5 years  
1-3  
 
NPort 1200/1240 User’s Manual  
Introduction  
NPort 1220  
USB  
Compliant with USB 1.1, 1.0  
USB 2.0 backwards compatible  
Connector  
USB type B  
Speed  
Full speed 12 Mbps  
Serial  
No. of Ports  
Interface  
2
4-wire RS-422: TxD+/-, RxD+/-, GND  
4-wire RS-485: TxD+/-, RxD+/-, GND  
2-wire RS-485: Data+/-, Data+/-, GND  
Terminal Block  
Connector  
FIFO  
64 bytes  
Serial line protection  
16 KV ESD for all signals  
Serial Communication Parameters  
Parity  
None, Even, Odd  
Data bits  
Stop bit  
Flow Control  
Speed  
7, 8  
1, 2  
ADDC (Auto Data Direction Control)  
600 to 115.2 Kbps  
Power Requirements  
Power Input  
12 to 48 VDC (external) or 5 VDC (Bus power)  
BUS: 140 mA @ 5 VDC  
Power Consumption  
Ext. PWR: 306 mA @ 12 VDC  
Mechanical Specifications  
Material  
ABS  
Gross Weight  
215±5 g (0.48 lb)  
Environmental  
Operating Temperature  
Storage Temperature  
Operating Humidity  
0 to 55°C (32 to 131°F)  
-20 to 85°C (-4 to 185°F)  
5 to 95% RH  
Agency Approvals  
EMC  
FCC (class B), CE (Class B)  
UL, CUL, TÜV  
Safety  
Warranty  
5 years  
1-4  
 
NPort 1200/1240 User’s Manual  
Introduction  
Panel Layout  
Å NPort 1240 Top Panel  
Å NPort 1220 Top Panel  
Å NPort 1240  
serial interfaces  
Å NPort 1220  
serial interfaces  
1-5  
 
NPort 1200/1240 User’s Manual  
Introduction  
Dimensions  
Å NPort 1240  
Å NPort 1220  
1-6  
 
NPort 1200/1240 User’s Manual  
Introduction  
DIP Switch Settings  
1-7  
 
2
Chapter  
2
Driver Installation  
This chapter includes information about installing the driver for NPort 1220/1240. We present the  
installation procedure for both Windows 98 and Windows 2000 (the procedure for Windows XP is  
essentially the same as for Windows 2000):  
Installing the Driver  
Checking the Installation  
Comfiguring the Ports  
¾ Windows 98  
¾ Windows 2000/XP  
Panel Layout  
Uninstalling the Driver  
For best results, we recommend that you install the USB driver for NPort 1220/1240 before  
connecting the product to your computer’s USB port.  
NOTE  
To do this, insert the software CD (included in the NPort 1220/1240 package) into your  
computer’s CD drive, and click on Install Software.  
 
NPort 1200/1240 User’s Manual  
Driver Installation  
Installing the Driver  
1. Connect NPort 1220/1240’s USB Port to your computer’s USB port. Make sure NPort  
1220/1240 and your computer is properly connected.  
2. After you connect NPort 1220/1240 to your computer, a Found New Hardware window will  
automatically open.  
3. When the Found New Hardware Wizard starts up, click Next to continue installing the USB  
driver.  
4. The setup program will prompt you with an Install Hardaware Device Drivers window.  
Select Search for a suitable driver for my device (recommended), and then click Next.  
2-2  
 
NPort 1200/1240 User’s Manual  
Driver Installation  
5. A window will open asking you where you want to locate the driver files. Check Specify a  
location box, .and then click Next.  
6. A window will open asking you to insert the installation disk. Insert the installation disk into  
your CD drive,and then click Browse to locate the installation file.  
2-3  
NPort 1200/1240 User’s Manual  
Driver Installation  
7. Select klsibus.inf, and then click OPEN.  
8. Click OK to continue.  
2-4  
NPort 1200/1240 User’s Manual  
Driver Installation  
9. A window will open showing the Driver Files Search Results. Click Next to install the  
driver.  
10. When the Completing the Found New Hardware Wizard window opens, click Finish to  
close the wizard.  
2-5  
NPort 1200/1240 User’s Manual  
Driver Installation  
11. A welcome message will appear. Click Next to continue installing Moxa [Port 1].  
12. A window will open asking you to insert the installation disk. Insert the installation disk into  
your CD drive, and then click Browse to locate the installation file. Select klsiw2k.inf and  
then click OPEN. Click OK to continue.  
2-6  
NPort 1200/1240 User’s Manual  
Driver Installation  
13. A window will open showing the Driver Files Search Results. Click Next to install the  
driver.  
14. When Completing the Found New Hardware Wizard window opens, click Finish to close  
this wizard.  
2-7  
NPort 1200/1240 User’s Manual  
Driver Installation  
If you wish to install the driver using “Install Driver” program, you will need to follow the  
instructions below.  
NOTE  
1. Insert the software CD (included in the NPort 1220/1240 package) into your computer’s CD  
drive, and then click on Install Software.  
2. When the Install Driver window opens, click on Install to install the driver files in the default  
folder (C:\Program Files\Moxa USB to Serial\drivers), or click on Browse to select a different  
folder.  
3. Click OK to complete the installation.  
4. Connect NPort 1220/1240’s USB port to your computer’s USB port. NPort 1220/1240’s serial  
ports will be installed automatically.  
2-8  
NPort 1200/1240 User’s Manual  
Driver Installation  
Checking the Installation  
You can check the installation of NPort 1220/1240 under your computer’s Device Manager  
window. You should check under both Ports (COM & LPT) and Universal Serial Bus  
controllers.  
Windows 98  
Windows 2000/XP  
To double check that the driver and port installation is correct, unplug the NPort 1220/1240 from  
your computer’s USB portwhile the Device Manager window is open. The MOXA listings under  
both Ports (COM & LPT) and Universal Serial Bus Controllers should disappear. Then replug  
NPort 1220/1240 into your computer’s USB port, and the MOXA listings should reappear.  
NOTE  
2-9  
 
NPort 1200/1240 User’s Manual  
Driver Installation  
Configuring the Ports  
Port configuration for NPort 1220/1240 differs slightly between Windows 98 and Windows  
2000/XP. To modify the configuration for a particular port, double click on the listing for that port  
under Ports (COM & LPT) in the Device Manager window.  
Windows 98  
Click on the Port Settings tab to change the Bits per second (data transmission speed), Data bits,  
Parity, Stop bits, and Flow control.  
Click on Advanced… to open the Advanced Port Settings to modify FIFO buffer settings.  
Under Windows 98, you will not be able to change the COM port number for NPort 1220/1240’s  
serial ports. You will need to use the default COM port number assigned by the OS after the ports  
are installed.  
NOTE  
2-10  
 
NPort 1200/1240 User’s Manual  
Driver Installation  
Windows 2000/XP  
The figures shown here were created under Windows 2000. The procedure for Windows XP is  
essentially the same.  
Click on the Port Settings tab to change the Bits per second (data transmission speed), Data bits,  
Parity, Stop bits, and Flow control.  
Click on Advanced… to open the Advanced Port Settings to modify FIFO buffer settings. You  
may also select a new COM port number using the drop-down list located next to COM Port  
Number.  
Under Windows 2000/XP, you can select a new COM Port Number on the Advanced Settings for  
COMx window.  
NOTE  
2-11  
 
NPort 1200/1240 User’s Manual  
Driver Installation  
Uninstalling the Driver  
To uninstall the driver, open the Device Manger window, and simply delete the NPort 1220/1240  
ports under Ports (COM&LPT).  
If you used the Install Driver program discussed at the beginning of this chapter, you can make  
use of the Uninstall Driver program to remove the driver files from the directory in which they  
were installed, and uninstall NPort 1220/1240’s ports.  
NOTE  
1.  
Click on Uninstall to start the uninstallation procedure.  
2.  
3.  
Click OK.  
Click on Yes to restart your computer.  
2-12  
 
3
Chapter  
3
Serial Programming Tools  
Moxa supports a class of easy to use, yet powerful serial programming libraries and  
communication troubleshooting utilities under Windows NT/2000/XP and Windows 95/98. Use  
these MOXA Serial Programming Tools to decrease your software development time.  
In the following sections, we describe the installation of the library, and the utilities supported for  
various programming platforms.  
This chapter includes the following sections:  
Overview  
PComm Installation  
PComm Programming Library  
Utilities  
Terminal Emulator  
 
NPort 1200/1240 User’s Manual  
Serial Programming Tools  
Overview  
PComm, a professional serial comm tool for PCs, is a software package that runs under Windows  
NT/2000/XP and Windows 95/98. PComm provides:  
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A powerful serial communication library for easy programming in the most popular  
programming languages. The serial communication library is useful for developing  
applications for data communications, remote access, data acquisition, and industrial control  
under Windows NT/2000/XP or Windows 95/98. It is a simpler solution compared to the  
more complex Windows Win32 COMM API.  
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Useful utilities such as diagnostic, monitor, and terminal emulator.  
Illustrative sample programs.  
PComm Installation  
To install PComm, run \Setup.exe from the diskette enclosed in the package. Please note that the  
PComm diagnostic and monitor utilities are for MOXA products only; these two utilities will not  
work with other manufacturers products.  
After PComm is successfully installed, click on Start Æ Program Files Æ PComm Lite to select  
a list of utilities and documents.  
PComm Programming Library  
The serial communication library assists you in developing serial communications programs for  
any COM port that complies with Microsoft Win32 API. It facilitates the implementation of  
multi-process and multi-thread serial communication programs and hence remarkably reduces  
development time.  
This serial communication library provides a complete function library and sample programs for  
Visual C++, Visual Basic, and Delphi. To view detailed function descriptions and sample  
programs, click on Start Æ Program Æ PComm Lite Æ PComm Lib Help Æ PComm Porting  
Notes or PComm Programming Guide, or refer to the sample programs in the PComm directory.  
Utilities  
In this section, we give brief descriptions of each utility. For more information about these utilities,  
see the on-line help from the software diskette.  
3-2  
 
NPort 1200/1240 User’s Manual  
Serial Programming Tools  
Terminal Emulator  
Terminal Emulator can be used to connect to various ports to see if data transmission is  
functioning correctly. Terminal Emulator features multi-windows, and supports VT100 and ANSI  
terminal types. You can transfer data interactively, send patterns periodically, and transfer files  
using ASCII, XMODEM, YMODEM, ZMODEM, and KERMIT protocols.  
To run Terminal Emulator, click on Start Æ Program Æ PComm Lite Æ Terminal Emulator.  
3-3  
 
A
Appendix  
A
Technical Reference  
In this appendix, we cover the following topics.  
Win32 API Function Compatible List  
¾ Windows 98  
¾ Windows 2000/XP  
General Technical Reference  
 
NPort 1200/1240 User’s Manual  
Technical Refernece  
Win32 API Function Compatible List  
Windows 98  
Test function  
Test Flag  
PURGE_TXABORT  
PURGE_RXABORT  
1. PurgeComm  
2. ClearCommBreak()  
3. SetCommBreak()  
4. ClearCommError  
cbInQue  
cbOutQue  
5. EscapeCommFunction  
SETDTR  
SETRTS  
SETXON  
SETXOFF  
SETBREAK,CLRBREAK  
EV_BREAK  
EV_CTS  
6. GetCommMask  
EV_DSR  
EV_ERR  
EV_RING  
EV_RLSD  
EV_RXCHAR  
EV_RXFLAG  
EV_TXEMPTY  
7. GetCommModemStatus()  
8. SetCommMask  
EV_CTS  
EV_DSR  
EV_RLSD  
EV_RXCHAR  
EV_RXFLAG  
EV_TXEMPTY  
BaudRate  
10. SetCommState  
Parity, ByteSize, StopBits,fParity  
ErrorChar,fErrorChar  
fNull  
fRtsControl=RTS_CONTROL_DISABLE  
fRtsControl=RTS_CONTROL_ENABLE  
fDtrControl=DTR_CONTROL_DISABLE  
fDtrControl=DTR_CONTROL_ENABLE  
FDsrSensitivity=TRUE  
11.SetCommTimeouts  
13. HWFlowContrl()  
ReadIntervalTimeout  
WriteTotalTimeoutMultiplier  
WriteTotalTimeoutConstant  
dcb.fRtsControl=RTS_CONTROL_HANDSHAK  
A-2  
 
NPort 1200/1240 User’s Manual  
Technical Refernece  
E
14. CloseHandle()  
15. ReadFile()  
Windows 2000/XP  
Test function  
Test Flag  
1. PurgeComm  
PURGE_TXABORT  
PURGE_RXABORT  
PURGE_TXCLEAR  
2. ClearCommBreak()  
3. SetCommBreak()  
4. ClearCommError  
CE_BREAK  
CE_RXPARITY  
CE_FRAME  
CE_RXOVER  
fCtsHold  
fDsrHold  
fXoffHold  
cbInQue  
cbOutQue  
5. EscapeCommFunction  
6. GetCommMask  
SETDTR  
SETRTS  
SETXON  
SETXOFF  
SETBREAK,CLRBREAK  
EV_CTS  
EV_DSR  
EV_RING  
EV_RLSD  
EV_RXCHAR  
EV_RXFLAG  
EV_TXEMPTY  
8. GetCommModemStatus()  
9. SetCommMask  
EV_CTS  
EV_DSR  
EV_RLSD  
EV_RXCHAR  
EV_RXFLAG  
EV_TXEMPTY  
EV_TXEMPTY  
BaudRate  
10. SetCommState  
Parity, ByteSize, StopBits,fParity  
ErrorChar,fErrorChar  
fNull  
A-3  
 
NPort 1200/1240 User’s Manual  
Technical Refernece  
fRtsControl=RTS_CONTROL_DISABLE  
fRtsControl=RTS_CONTROL_ENABLE  
fDtrControl=DTR_CONTROL_DISABLE  
fDtrControl=DTR_CONTROL_ENABLE  
FDsrSensitivity=TRUE  
11.SetCommTimeouts  
ReadIntervalTimeout  
ReadTotalTimeoutMultiplier  
ReadTotalTimeoutConstant  
WriteTotalTimeoutMultiplier  
WriteTotalTimeoutConstant  
12. HWFlowContrl()  
13. ReadFile()  
dcb.fRtsControl=RTS_CONTROL_HANDSHAK  
E
General Technical Reference  
Question 1  
Why does the port stop responding when I use a program to fast open/close the port? On the other  
hand, if I just do a normal port open/close, the port will stop responding after about 100 times. In a  
related problem, if I use the port on a dial-up network, the port will sometimes stop responding, or  
when I add a new modem under Windows XP, the port will be dead the first time I use the modem.  
Answer 1  
For all of these problems, simply unplug and then re-plug NPort 1220/1240 from the computer’s  
USb port.  
Question 2  
NPort 1220/1240 currently supports baud rates from 600 bps to 115200 bps. However, if I set an  
invalid baud rate, such as 300 bps, the driver does not return an error.  
Answer 2  
This problem stems from the fact that some Windows operating systems do not alert the user to the  
baud rate limits of connected devices.  
Question 3  
Why is it that when I use NPort 1220/1240 under Windows XP, the OS loading is sometimes  
around 45%?  
Answer 3  
This problem is a common characteristic that appears when using USB devices under Windows  
XP.  
A-4  
 
NPort 1200/1240 User’s Manual  
Technical Refernece  
Question 4  
When I install NPort 1220/1240 under Windows 2000/XP, the COM port number is assigned by  
which USB slot I use to connect to my computer. What happens if I change the USB slot?  
Answer 4  
The port number will change. Keep in mind that the port number is automatically assigned by the  
OS.  
Question 5  
Under Windows 2000, it seems that the more USB ports I install (e.g., close to 25 or 30 ports), the  
port throughput drops to around 1%. How do I get around this problem?  
Answer 5  
We recommend limiting to 16 ports the number of USB ports installed under Windows 2000.  
A-5  
B
Appendix  
B
Service Information  
This appendix shows you how to contact Moxa for information about this and other products, and  
how to report problems.  
In this appendix, we cover the following topics.  
MOXA Internet Services  
Problem Report Form  
Product Return Procedure  
 
NPort 1200/1240 User’s Manual  
Service Information  
MOXA Internet Services  
Customer satisfaction is our number one concern, and to ensure that customers receive the full  
benefit of our products, Moxa Internet Services has been set up to provide technical support, driver  
updates, product information, and user’s manual updates.  
The following services are provided  
E-mail for technical support................................[email protected]  
World Wide Web (WWW) Site for product information:  
.............................http://www.moxa.com  
.............................http://www.moxa.com.tw  
or  
B-2  
 
NPort 1200/1240 User’s Manual  
Service Information  
Problem Report Form  
MOXA NPort 1220/1240  
Customer name:  
Company:  
Tel:  
Fax:  
Email:  
Date:  
1. Moxa Product: NPort 1220  
NPort 1240  
2. Serial Number: _________________  
Problem Description: Please describe the symptoms of the problem as clearly as possible, including any error  
messages you see. A clearly written description of the problem will allow us to reproduce the symptoms, and  
expedite the repair of your product.  
B-3  
 
NPort 1200/1240 User’s Manual  
Service Information  
Product Return Procedure  
For product repair, exchange, or refund, the customer must:  



Provide evidence of original purchase.  
Obtain a Product Return Agreement (PRA) from the sales representative or dealer.  
Fill out the Problem Report Form (PRF). Include as much detail as possible for a shorter  
product repair time.  

Carefully pack the product in an anti-static package, and send it, pre-paid, to the dealer. The  
PRA should be visible on the outside of the package, and include a description of the problem,  
along with the return address and telephone number of a technical contact.  
B-4  
 

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