NPort Server Lite
Hardware Installation Guide
for DE-301/331 & DE-302/304/332/334
Second Edition, Dec 2002
Moxa Technologies Co., Ltd.
Tel: +866-2-8919-1230
Fax: +886-2-8919-1231
MOXA Internet Services
Customer satisfaction is our number one concern. 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:
address: [email protected]
Latest drivers and documents:
address: http://www.moxa.com
or
World Wide Web (WWW) site for product information:
address: http://www.moxa.com
or
Table of Contents
1. Introduction.......................................................................1-1
Features...................................................................................... 1-2
Product Specifications ................................................................ 1-2
Package Checklist...................................................................... 1-3
Front/Top/Rear/Bottom/Right Panel Views................................. 1-4
2. Connecting the Hardware ................................................2-1
Choosing a Location................................................................... 2-1
Desktop................................................................................. 2-1
Wall or Cabinet...................................................................... 2-2
DIN Rail................................................................................. 2-3
Network Connection ................................................................... 2-5
Power Connection ...................................................................... 2-6
Serial Connection ....................................................................... 2-6
3. Using the Built-In LCD Panel to Configure
NPort Server Lite ..............................................................3-1
4. Troubleshooting ...............................................................4-1
Installation and Configuration Troubleshooting .......................... 4-1
Programming Problems.............................................................. 4-5
A. Cable Pinouts.................................................................. A-1
B. Declaration of Conformity .............................................. B-1
1
1 Introduction
Welcome to Moxa NPort Server Lite, an Industrial Serial Device Server that
greatly enhances the ability of a Windows 95/98/Me/NT/2000/XP host to control
multiple serial devices over a TCP/IP based Ethernet network.
This chapter is an introduction to NPort Server Lite and includes the following:
❑
❑
❑
❑
Features
Product Specifications
Package Checklist
Front/Top/Rear/Bottom/Right Panel Views
NPort Server Lite provides a data communications solution for connecting
Windows hosts to multiple asynchronous RS-232 (models DE-301/302/304) or
RS-422/485 (models DE-331/332/334) serial ports through a TCP/IP network.
Each model has one (DE-301/331), two (DE-302/332), or four (DE-304/334)
asynchronous serial port connections on one side, and one 10/100 Mbps Ethernet
connection on the other, allowing any device that supports the asynchronous
communications protocol to attach to a network. NPort Server Lite works like an
add-on multiport serial board to the Windows host, but with one major
advantage—the TCP/IP network. Since the Windows host communicates with
the COM ports on NPort Server Lite over a TCP/IP network, you are able to
control asynchronous serial devices from virtually anywhere in the world.
Although it connects through the virtual link of the Ethernet, the ports on NPort
Server Lite are recognized as Real COM ports by the Windows operating system.
NPort Server Lite provides both the basic transmit/receive data functions, as well
as RTS, CTS, DTR, DSR, and DCD control signals.
NPort Server Lite can be used with your existing applications that support serial
communication. It also comes with a utility program providing a simple
step-by-step installation procedure, and a maintenance wizard that gives you
easy access to your asynchronous devices.
1-1
Features
❑
❑
❑
❑
❑
Auto-detecting 10/100 Mbps Ethernet
1/2/4 port RS-232/422/485 serial interface
LCD IP address display and configuration
Built-in Ethernet and TCP/IP protocol
Supports Driver, TCP Server, TCP Client, UDP Server/Client, and Pair
Connection (only for DE-301/331) operation modes
Ports on multiport units can be individually configured with different
operation modes
❑
❑
❑
❑
Supports Windows Real COM drivers and Linux real tty drivers
Automatic network connection recovery
Suitable for both desktop and DIN-Rail installation
Product Specifications
Hardware
Processor
16 bit CPU
I/O controller:
DE-301/331
DE-302/332
DE-304/334
16C550C or compatible × 1
16C550C or compatible × 2
16C550C or compatible × 4
Memory
512 KB
Connector type
Male DB9
Interface
LAN
Auto-detecting 100Base-TX (10/100 Mbps)
Serial
No. of ports
Signals:
RS-232 or RS-422/485
1/2/4
RS-232
RS-422
RS-485
TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
TxD+/-, RxD+/-, RTS+/-, CTS+/-, GND
Data+/-, GND
Performance
Speed
50 bps – 230.4 Kbps
Max. No. of ports
256 (per Windows NT/2000/XP host)
128 (per Windows 95/98 host)
1-2
Configuration
Parity
Data bits
None, even, odd, space, mark
5, 6, 7, 8
Stop bits
1, 1.5, 2
OS Support
Windows XP, Windows 2000, Windows NT, Windows 95/98/Me, UnixWare
SVR4.2, UnixWare7 SVR5, SCO Open Server, SCO UNIX, Linux real tty for
2.0.36 and above, 2.2.x, 2.4.x (Intel x86 running TCP/IP)
Power and Environment
Power Requirements
Operating Temp.
Operating Humidity
Storage Temp.
9 – 30 VDC, 1.05A/9V
0 – 55℃
5 – 95% RH
-20 – 85℃
Dimensions
155 × 105 × 33 mm (W × D × H)
15 KV ESD for serial ports
1.5 KV for Ethernet
FCC, CE, UL, CUL, TÜV
Surge Protection
Magnetic Isolation
Regulatory Approvals
Note: If you need a product with optical isolation, MOXA Transio A53, a smart
RS-232 to RS-422/485 bi-directional converter, can be used with NPort
Server Lite to provide up to 2 KV of optical isolation.
Package Checklist
❑
❑
❑
❑
❑
❑
One NPort Server Lite
NPort Server Lite Hardware Installation Guide
NPort Family Software Installation Guide
Cross-over 10/100 Mbps Ethernet cable
Power Adaptor (110V or 230V)
Windows 95/98/Me/NT/2000/XP drivers (on CD)
Optional Accessories
❑
❑
A52: Smart RS-232 to RS-422/485 Bi-Directional Converter
A53: Smart RS-232 to RS-422/485 Bi-Directional Converter;
supports optical isolation protection (2 KV)
Metal attachment plates and screws
❑
1-3
Front/Top/Rear/Bottom/Right Panel Views
1. Male DB9 serial ports
Note: Models DE-301/331 have
only one port, and models
DE-302/332 have only two ports.
2. PWR LED
3. LINK LED
4. TRAFFIC LED
5. LCD display panel
Note: Before retrieving an IP
address from the
DHCP/BOOTP server, NPort
will display “DHCP/BOOTP fail”
every 1 second.
6. Input buttons for LCD display
panel configuration
7. Reset button—press
continuously for
a. 3 sec to erase password
After 3 sec, release the
reset button at this time to
erase password.
8. 100BaseTx Ethernet port
9. Power input
10. Rubber base pads
11. Attachment plate screw holes
12. Heat dissipation orifices
1-4
2
2 Connecting the Hardware
Now that you have been introduced to NPort Server Lite's features and
specifications, it’s time to set up the hardware. We cover the following topics in
this chapter:
❑
Choosing a Location
•
•
•
Desktop
Wall or Cabinet
DIN Rail
❑
❑
❑
Network Connection
Power Connection
Serial Connection
Choosing a Location
There are three placement options available. NPort Server Lite can be:
•
•
•
placed on a desktop,
fixed to a wall or inside a cabinet, or
fixed to a 35-mm DIN Rail.
Desktop
One option is to place NPort Server Lite on a clean, flat, well-ventilated desktop.
There are four rubber pads attached to the bottom of the server, and we
recommend leaving sufficient room between NPort Server Lite and neighboring
equipment to create enough clearance for air to circulate.
You should also remember not to put anything on top of NPort Server Lite, since
this could damage the internal components and obscure the server’s LCD panel.
2-1
Wall or Cabinet
The two metal brackets included with NPort Server Lite can be used to attach the
server to a wall, or the inside of a cabinet. Using three screws per bracket, first
attach the brackets to the bottom of the server (Fig. 2-1a). Next, use two screws
per bracket to attach the server to a wall or cabinet (Fig. 2-1b).
Figure 2-1a. NPort Server Lite—Wall Mounting Brackets (bottom
view)
Figure 2-1b. NPort Server Lite—Wall Mounting Brackets (top view)
2-2
DIN Rail
NPort Server Lite can also be mounted on a standard 35-mm DIN Rail. First, use
two screws to attach each of the two DIN Rail brackets to the metal attachment
plates (Figs. 2-2a, b).
Figure 2-2a. DIN Rail Mounting Brackets—Inner Placement
Figure 2-2b. DIN Rail Mounting Brackets—Outer Placement
Since the screw heads are beveled, and the holes in the plate are countersunk, the
tops of the screws will be flush with the metal plates. This allows the metal
plates (now with the DIN Rail brackets attached) to be screwed to the bottom of
the server. Use three screws to attach the metal plate to the bottom of NPort
Server Lite, with the orientation as shown in Fig. 2-3a or Fig. 2-3b.
2-3
Figure 2-3a. Din Rail Mounting Brackets—Inner Placement
Figure 2-3b. Din Rail Mounting Brackets—Outer Placement
2-4
The next step is to attach NPort Server Lite to the Din Rail.
STEP 1: Insert the top of the DIN Rail STEP 2: Push the bottom of NPort
into slot A of the DIN Rail
mount.
Server Lite so that the bottom
of the DIN Rail snaps into
slot B of the DIN Rail mount.
To remove NPort Server Lite from the DIN Rail, simply reverse Steps 2 and 3
above by grasping the bottom of the NPort Express device server with both
hands, and then using your fingers to pull down slightly on the DIN Rail mounts
at slot B. This releases the bottom of the DIN Rail from the DIN Rail mount.
Network Connection
There are two ways to use the 10/100BaseT Ethernet jack located on NPort
Server Lite’s rear panel.
1. For many of the applications using NPort Server Lite, you will simply plug
one end of your Ethernet cable into the 10/100BaseT jack, and the other end
into the hub connected to your network. In this case, use a standard
straight-through Ethernet cable.
2. In some cases, such as when configuring drivers and software, you will find
it convenient to hook NPort Server Lite directly to your computer’s Ethernet
card. To do this you will need to use a cross-over Ethernet cable, such as the
one supplied with your server.
2-5
Power Connection
Take the following steps to connect NPort Server Lite’s power adaptor.
1. Connect the power adaptor’s DC plug into NPort Server Lite’s “DC-IN”
jack.
2. Connect the power adaptor to an electrical outlet.
Note that there is no on/off switch. The device server automatically turns on
when plugged into the outlet.
If the device server is working properly, the LCD panel back light will glow
for a few seconds before shutting off, and the green PWR LED will also
light up, indicating that the device server is receiving power. The LCD panel
should look similar to the figure shown in Chapter 1.
Serial Connection
The model of NPort Server Lite that you purchased has either one (models
DE-301/331), two (models DE-302/332), or four (models DE-304/334) male
DB9 serial ports on the front panel. Depending on your serial device and serial
interfaces, there are two connection options:
1. For an RS-232 port, you may use a DB9 to DB9 cable to connect your serial
device to NPort Server Lite. Simply plug one end of the cable into one of the
ports on the front panel of the server, and plug the other end into your serial
device’s serial port.
2. Refer to Appendix A for details of NPort Server Lite’s DB9 pinouts, and
then make your own cable.
2-6
3
3 Using the Built-In LCD Panel
to Configure NPort Server Lite
In this chapter, we explain how to use the four buttons on NPort Server Lite’s top
panel to operate the LCD display.
Basic Operation
If the server is working properly, the LCD panel will display a yellow color for a
few seconds, after which it turns green. The green PWR LED will also light up,
indicating that the server is receiving power. You will see a display similar to:
N
1
P
9
6
2
1
.
4
1
0
6
5
8
S
1
N
2
:
7
6
.
1
2
4
5
0
4
5
.
This is where
•
•
•
NP61405
61405
192.168.127.254
is the server’s name
is the server’s serial number
is the server’s IP address
There are four buttons on NPort Server Lite’s top panel of. Going from left to
right, the buttons are:
Button Name
Action
menu
activates the main menu, or returns to a lower level
MENU
scrolls up through a list of items shown on the LCD
panel’s second line
up cursor
ꢀ
scrolls down through a list of items shown on the LCD
panel’s second line
selects the option listed on the LCD panel’s second line
down cursor
select
ꢁ
SEL
3-1
The buttons are manipulated in a manner similar to the way a modern cellular
phone operates. As you move through the various functions and setting options,
note that the top line shows the current menu or submenu name, and the bottom
line shows the submenu name or menu item which is activated by pressing the
SEL button.
Detailed Menu Options
The best way to explain all of NPort Server Lite’s LCD functions is to refer to
the tree graph shown in Fig. 3-1. There are three main levels—1, 2, and 3—with
each level represented by a separate column.
The first thing to remember is that the MENU button is used to move back and
forth between the LCD panel’s default screen, and main menu screen:
N
1
P
9
6
2
1
.
4
1
0
6
5
8
S
1
N
2
:
7
6
.
1
2
4
5
0
4
5
H
.
M
S
A
E
I
R
N
V
M
R
E
N
S
U
E
E
T
T
I
N
G
↓
In addition, you only need to remember to:
•
•
Use the SEL button to move up one level (i.e., left to right on the tree graph)
Use the MENU button to move down one level (i.e., right to left on the tree
graph)
•
Use the cursor keys, ꢀ and ꢁ, to scroll between the various options within
a level (i.e., up and down on the tree graph).
As you use the buttons to operate the LCD display, you will notice that with
very few exceptions, moving up one level causes the bottom line of the
display to move to the top line of the display. You will also notice that the
bottom three options in level 2, and all of the options in level 3 have either a
C or D attached.
The meaning is as follows:
•
C = configurable
I.e., you are allowed to change the setting of this option
•
D = display only
I.e., the setting for this option is displayed, but it cannot be changed
(this does NOT necessarily mean that the number doesn’t change; only
3-2
that you can’t change it)
Figure 3-1: Tree Graph Displaying LCD Menu Options
3-3
The part of the LCD operation that still requires some explanation is how to edit
the configurable options. In fact, you will only encounter two types of
configurable options.
The first type involves entering numbers, such as IP addresses, Netmasks, etc. In
this case, you change the number one digit at a time. The up cursor (ꢀ) is used
to decrease the highlighted digit, the down cursor (ꢁ) is used to increase the
highlighted digit, and the SEL button is used to move to the next digit. When the
last digit has been changed, pressing SEL simply enters the number into NPort
Server Lite’s memory.
The second type of configurable option is when there are only a small number of
options from which to choose (although only one option will be visible at a time).
Consider the PARITY attribute under PORT SETTING as an example. Follow
the tree graph to arrive at the following PARITY screen. The first option, NONE,
is displayed, with a down arrow all the way to the right. This is an indication that
there are other options from which to choose.
P
N
A
O
R
N
I
E
T
Y
↓
Press the down cursor button once to see EVEN as the second option.
P
E
A
V
R
E
I
N
T
Y
↑
↓
Press the down cursor button again to see ODD as the third option.
P
O
A
D
R
D
I
T
Y
↑
↓
Press the down cursor button again to see Mark as the fourth option.
P
M
A
a
R
r
I
k
T
Y
↑
↓
Press the down cursor button yet again to see the last option, Space.
P
S
A
p
R
a
I
c
T
e
Y
↑
To choose the desired option, press the select button when the option is showing
on the screen.
3-4
4
4 Troubleshooting
This chapter explains how to solve some problems you could encounter while
using NPort Server Lite. If you still have problems after reading this chapter,
contact your dealer, or e-mail Moxa for help. You may also use the "Problem
Report Form" at the end of this manual to notify your dealer that you require
prompt technical support.
We cover the following topics.
❑
❑
Installation and Configuration Troubleshooting
Programming Problems
Installation and Configuration
Troubleshooting
ꢀ A particular host PC is used to install an NPort Server Lite device server in
Single Host mode, but after working successfully for an extended period of
time, the same host PC is unable to access the NPort Server Lite device
server.
When a host PC is used to install an NPort Server Lite device server in
Single Host mode, two things happen: (1) NPort Server Lite’s Single Host
Mode driver is installed on the host PC, and (2) the host PC’s IP address is
automatically entered into NPort Sever Lite’s access control table. For
security reasons, and to simplify operation, Single-Host Mode allows only
one host IP to be entered into its access control table. Furthermore, the only
way to change the access control IP address is to reinstall the driver. The
important point is that this reinstallation can be done by either the original
host, or a different host. If a different host installs the same NPort Server
Lite device server in Single Host mode, then the original host will no longer
be able to access the device server’s serial port.
4-1
To prevent this problem, be sure to set a password while installing NPort
Server Lite in Single Host mode. If a password is set, then only someone
who knows the password will be able to reinstall the NPort Server Lite
driver (either from the original or a different host).
If you would like your NPort Server Lite to allow access to more than one
host, first uninstall the Single Host Mode driver, and then reinstall the driver
in Custom Mode.
ꢀ Why am I unable to change NPort Server Lite’s IP address and other
properties?
Two situations could give rise to this problem.
1. Incorrect Password—If you type the wrong password while running
NPort Server Lite Manager, the Manager program will not allow you to
change NPort Server Lite’s IP address and other properties. Only the
administrator, which by definition is anyone who knows the password,
has the right to modify the server’s configuration.
Keep in mind that even when two or more hosts are given access to a
server’s serial ports, it is still possible to protect access to the server’s
administrative functions by setting up a password. Consequently, if you
need to change some configuration settings, but you do not know the
password, you will have to ask the administrator for help. If you are the
administrator, but forget the password, you can erase the current
password by pressing the RESET button on NPort Server Lite’s back
panel for three seconds.
2. Incorrect Operation Mode—You will not be able to change the device
server’s IP address if you are installing NPort Server Lite under Single
Host Mode. Setting up the installation procedure in this way makes the
Single-Host Mode configuration procedure very similar to installing a
traditional multiport serial board. Under Single Host Mode, users are
only allowed to modify the device server's name and password. This is
because Single Host users are not sharing their NPort Server Lite with
other hosts. If you need to modify other properties, access NPort Server
Lite via Telnet, or run the setup program and change to another
operation mode.
ꢀ I would like to allow one or more hosts to access an NPort Server Lite
device server, but I am unable to open the Access Control page.
Check the NPort Manager operation mode. If the currently installed
operation mode is Single-Host Mode, reinstall it as Custom Mode.
4-2
ꢀ Why does NPort Server Lite Manager indicate an “Unauthorized” status for
some of the NPort Server Lite device server’s ports?
This means that NPort Server Lite’s Access Control list does not associate
your host’s IP address with those ports. This situation can come about in one
of two ways:
1. Your Windows machine is just one of the hosts sharing the ports on the
selected device server, and you did not input the device server’s
password while installing NPort Server Lite.
2. You installed NPort Server Lite at a local site, with no access problems,
but later move the device server to a remote site and connect through a
WAN. Due to this different network connection, your host’s IP address
might have changed, and as a result, your host’s IP address is no longer
on the device server’s Access Control List.
To solve this problem:
1. Determine your NPort Server Lite’s current IP address. You can read
the IP address directly from the LCD display on NPort Server Lite’s top
panel.
2. Ask the administrator to add the current IP address to NPort Server
Lite’s Access Control list.
ꢀ Why does NPort Server Lite Manager show a question mark (?) on top of a
server icon, making it impossible to enter server properties?
This means that the host cannot find the server. Here are some steps you can
take to recover from this problem:
If the host and server are in the same location:
1. Make sure NPort Server Lite’s power cable is plugged in, and the server
is receiving power.
2. Check that the server’s network connector is plugged in properly.
3. Make sure your computer is properly connected to the network.
4-3
Double click on the server icon that has the question mark (?) on top. This
will cause NPort Server Lite Manager to reconnect with the server.
If the server is at a remote site:
1. Make sure the network connection to the remote site is okay. If no route
can be established to the remote device server, and you are connecting
through the Internet, you may need to wait until the route is
reestablished.
2. If the route is okay, try typing
ping [server-IP-address]
from your Windows host, where [server-IP-address] is the
device server’s IP address. If the device server cannot be pinged, you
will need to ask someone at the remote site to check if the power is on,
and make sure the connection is okay. After that, double click on the
device server icon that has the question mark (?) on top. This will cause
NPort Server Lite Manager to reconnect with the device server.
If the problem is still not fixed, contact Moxa technical support for further
information.
ꢀ After rebooting my Windows host, why does one of my NPort Server Lite
device servers not appear when running NPort Server Lite Manager?
The problem might be that you have a DHCP server on your network. Since
DHCP servers can assign IP addresses to hosts connected to the network, the
IP address for either the host or NPort Server Lite might have changed. To
recover from this problem, you should:
1. Ask the administrator of your DHCP server to assign a dedicated IP
address to both your Windows host and to NPort Server Lite.
2. Make sure your NPort Server Lite Manager operating mode is set to
Custom.
3. Change the IP address of the server to the dedicated IP address assigned
by your DHCP administrator.
4. Change the IP address of your Windows host to the dedicated IP
address assigned by your DHCP administrator.
5. Modify the Security list to include your Windows host.Save the
Configuration.
4-4
Programming Problems
ꢀ Why do the Win32 COMM API functions return fail, or the PComm Pro
library functions return the fail code “SIO_WIN32 FAIL”?
The fail code for the COMM API functions implies something different than
the fail code received from the standard COM driver. For example, you get
the fail code when the network connected to the device server is unreachable,
or the device server is offline. If the network connection is through the
Internet, the network could be unreachable if Internet traffic is jammed. This
does not mean you have a defective device server. To recover from this type
of error, you can modify your program so that the port is automatically
closed and then re-opened.
You should also check the following to make sure that the problem is only
with the TCP/IP network:
1. If the device server is off-line, turn it on and plug it into the network.
You may test if the route to NPort Server Lite is reachable by typing
Ping [NPort-Server-Lite-IP-address]
If a route to the device server cannot be established, check your host’s
routing table and the device server's routing table.
To solve this problem, programs should:
1. Try to re-open the port if the fail code is returned during the open (i.e.,
sio_open) session.
2. If the fail code returns while writing data, reading data, changing settings,
etc., you should close the file handler, and then try to reopen the port.
4-5
A
A.Cable Pinouts
A-1
A-2
B
B.Declaration of Conformity
Manufacturer’s Name:
Moxa Technologies Co., Ltd.
Manufacturer’s Address: Fl.4, No.135, Lane 235, Pao-Chiao Rd.,
Shing Tien City, Taipei, Taiwan, R.O.C.
declares that the product:
Product Name:
NPort Server Lite
Model Numbers:
DE-301, DE-302,
DE-304, DE-331, DE-332, DE-334
conforms to the following standards:
EMC:
EN55022:1994 class A
EN61000-3-2:1995 class A
EN61000-3-3:1995
EN55082-1:1997
EN61000-4-2:1995
Contact Discharge 4kV
Air Discharge 8kV
EN61000-4-3:1995
EN61000-4-4:1995
AC/DC Power supply 1kV
Data/Signal lines 5kV
EN61000-4-5:1995
AC/DC Line to Line 1kV
AC/DC Line to Earth 2kV
EN61000-4-6:1995
EN61000-4-8:1993
EN61000-4-11:1994
3A/m at 50Hz
B-1
Problem Report Form
NPort Server Lite
Customer name:
Company:
Tel:
Fax:
E-mail:
Date:
1. Moxa Product:
ꢀ DE-301 (1 RS-232 port)
ꢀ DE-302 (2 RS-232 ports)
ꢀ DE-304 (4 RS-232 ports)
ꢀ DE-331 (1 RS-422/485 port)
ꢀ DE-332 (2 RS-422/485 ports)
ꢀ DE-334 (4 RS-422/485 ports)
2. Interface: ꢀ RS-232 ꢀ RS-422 ꢀ RS-485 (ADDC) ꢀ RS-485 (by RTS)
3. Operation Mode:
ꢀ Host Based Mode
ꢀ UDP Server/Client
ꢀ TCP Server
ꢀ Pair Connection (DE-301/331)
ꢀ TCP Client
4. Serial Number: ___________
5. NPort Lite Firmware Version: ________________
6. NPort Lite Manager Version: ________________
7. PC Host: Make _________
8. CPU: Speed _____ MHz
Model _________
Make ______ Model ____
9. Ethernet Card: ꢀ ISA Card Make:
ꢀ PCI Card Make:
10. Your Installation Type: ꢀ Single Host ꢀ Custom
11. Problem Description: Please describe the symptoms as clearly as possible,
including any error messages you see, since we may need to follow your
description to reproduce the symptoms.
Revision History
Document Edition
Revision Date
Revision Details
2nd
December 1, 2002
1. Moxa FTP site changed to
Moxa website (Moxa
Internet Services page).
2. Added a note about
retrieving an IP address
from the DHCP/BOOTP
server. (p. 1-4)
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.
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