Sena NEMO10 User manual

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NEMO10 / NEMO10-SK
User Guide
Version 1.4.1
2006-11-15

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User Guide for the NEMO10/NEMO10-SK
Version 1.4.1
Firmware version 1.4.X
Printed in Korea
Copyright
Copyright 2002~2006, Sena Technologies, Inc. All rights reserved.
Sena Technologies reserves the right to make changes and improvements to its product without
providing notice.
Trademark
HelloDevice™is a trademark of Sena Technologies, Inc.
Windows® is a registered trademark of Microsoft Corporation.
Ethernet® is a registered trademark of XEROX Corporation.
Notice to Users
When a system failure may cause serious consequences, protecting life and property against such
consequences with a backup system or safety device is essential. The user agrees that protection
against consequences resulting from system failure is the user's responsibility.
This device is not approved for life-support or medical systems.
Changes or modifications to this device not explicitly approved by Sena Technologies will void the
user's authority to operate this device.
Technical Support
Sena Technologies, Inc.
210 Yangjae-dong, Seocho-gu
Seoul 137-130, Korea
Tel: [phone]
Fax: [phone]
E-Mail: [e-mail]
Website: http://www.sena.com

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Table of Contents
1: Introduction 5
1.1 Overview .....................................................................................................................................5
1.2 Package Check List ....................................................................................................................6
1.3 NEMO10 Product Specification...................................................................................................6
1.4 Terminologies and Acronyms ......................................................................................................7
2: Getting Started 9
2.1 Board layout and connectors ......................................................................................................9
2.1.1 The NEMO10 module .......................................................................................................9
2.1.2 Test bed........................................................................................................................... 11
2.2 Connecting the Hardware .........................................................................................................14
2.2.1 Install the NEMO10 onto the test bed.............................................................................15
2.2.2 Connecting the Power.....................................................................................................15
2.2.3 Connecting to the Network..............................................................................................15
2.2.4 Connecting to the Device................................................................................................16
2.3. Accessing Console Port ...........................................................................................................17
2.3.1 Using Serial Console ......................................................................................................17
2.3.2 Using Remote Console ...................................................................................................18
2.4 Command Usage ......................................................................................................................19
2.4.1 ‘set’Command ................................................................................................................20
2.4.2 ‘get’Command................................................................................................................22
2.4.3 ‘help’Command..............................................................................................................23
2.4.4 ‘factorydefault’Command ...............................................................................................24
2.4.5 ‘save’Command .............................................................................................................24
2.4.6 ‘exit’Command ...............................................................................................................25
2.4.7 ‘reboot’Command...........................................................................................................25
3: IP Address Configuration 26
3.1 Static IP .....................................................................................................................................27
3.1.1 Overview .........................................................................................................................27
3.1.2 Static IP Configuration ....................................................................................................27
3.2 DHCP ........................................................................................................................................28
3.2.1 Overview .........................................................................................................................28
3.2.2 DHCP Configuration .......................................................................................................29
3.3 PPPoE.......................................................................................................................................29
3.3.1 Overview .........................................................................................................................29

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3.3.2 PPPoE Configuration......................................................................................................29
3.4 IP Filtering .................................................................................................................................30
4. Host Mode Configuration 31
4.1 TCP Server Mode Operations ...................................................................................................33
4.1.1 Overview .........................................................................................................................33
4.1.2 TCP Server Mode Configuration.....................................................................................35
4.2 TCP Client Mode Operations ....................................................................................................36
4.2.1 Overview .........................................................................................................................36
4.2.2 TCP Client Mode Configuration ......................................................................................38
4.3 TCP Server/Client Mode Operations.........................................................................................38
4.3.1 Overview .........................................................................................................................38
4.3.2 TCP Server/Client Mode Configuration...........................................................................40
5: Serial Port Configuration 41
6: System Administration 44
Appendix A: Connections 45
A.1 Ethernet Pin outs ......................................................................................................................45
A.2 Serial Port Pin Outs ..................................................................................................................45
A.3 Ethernet Wiring Diagram ..........................................................................................................46
A.4 Serial Wiring Diagram ...............................................................................................................46
A.5 NEMO10-SK Schematic Diagram.............................................................................................47
Appendix B: Well-known Port Numbers 48
Appendix C: Troubleshooting 49
C.1 Power/LED Status Troubleshooting..........................................................................................49
C.2 Serial Console Troubleshooting................................................................................................49
C.3 Remote Console Troubleshooting ............................................................................................49
C.4 IP Address Troubleshooting......................................................................................................50
C.5 DHCP Troubleshooting.............................................................................................................50
C.6 TCP Server Mode Operation Troubleshooting .........................................................................50
C.7 Serial Communication Troubleshooting....................................................................................51

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1: Introduction
1.1 Overview
The NEMO10 allows you to network-enable a variety of serial devices that were not originally
designed to have network-capability. This capability brings the advantages of remote management
and data accessibility to thousands of serial devices over the network.
The NEMO10 is DIL (Dual-In-Line) package, cost-effective single-port serial-Ethernet communication
module. The NEMO10 supports RS232 serial communication allowing virtually any asynchronous
serial device to be accessed over a network. Its compact size enables users to easily develop their
network-enabled device by simple on-board installation. For easier evaluation, the NEMO10-SK, the
starter’s kit is provided. In the NEMO10-SK, there are several additional items for evaluation, such as
carrier board for testing the NEMO10 module, CD-ROM for the software and the power-supply.
As for the Internet connectivity, the NEMO10 supports open network protocols such as TCP/IP
allowing serial devices to be accessed over broadband network or conventional LAN (Local Area
Network) environment.
The NEMO10 provides the management console using Telnet and serial console port under the
password protection support. And the NEMO10 also provides the management function using the
HelloDevice Manager Software Utility.
The NEMO10 was designed to accommodate the unique requirements of the Retail POS, Security,
Automation and Medical marketplaces.
Parts of this manual assume the knowledge on concepts of the Internetworking protocols and serial
communications. If you are not familiar with these concepts, please refer to the standards or the
documentation on each subject.

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1.2 Package Check List
NEMO10
NEMO10 DIL module
NEMO10-SK
- NEMO10 DIL module
- Carrier board for the NEMO10
- 110V or 230V Power supply adapter
- Ethernet CAT5 cable
- Serial console/data cable
- CD-ROM for the Users manual and software such as HelloDevice Manager and Serial/IPTM
1.3 NEMO10 Product Specification
Processor
80C51 8-bit microprocessor
Hardware
Memory
32KB SRAM, 64KB EEPROM
Built-in UART
Serial speeds 1200bps to 115.2kbps
Flow Control: None, Hardware RTS/CTS
Serial Interface
Signals: Rx, Tx, RTS, CTS, DTR, DSR, GND
10 Base-T Ethernet interfaceNetwork Interfaces Supports static and dynamic IP address
Protocols ARP, IP/ICMP, TCP, Telnet, DHCP client, PPPoE
Security User ID & Password
Telnet or serial console port or HelloDevice ManagerManagement Full-featured system status display
External interface 24-pin external interface
Serial interface
Ethernet interface
LED interface
Switch interface
Power supply interface
Others
Supply voltage
5VDC +/- 10%
Power
Supply current
60mA @ 5VDC
Environmental Operating temperature: 0 ~ 50 oC
Storage temperature: -20 ~ 66 oC
Humidity : 90% (Non-condensing)
Physical
properties Dimension 45 mm L (1.8 in.) * 45 mm W (1.8 in.) * 18.5 mm H (0.7 in.)

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Warranty 1-year limited warranty
1.4 Terminologies and Acronyms
The Internetworking related terminologies used frequently in this manual are defined clearly to help
your better understanding of the NEMO10.
MAC address
On a local area network or other network, the MAC (Media Access Control) address is the computer's
unique hardware number. (On an Ethernet LAN, it's the same as your Ethernet address.)
It is a unique 12-digit hardware number, which is composed of 6-digit OUI (Organization Unique
Identifier) number and 6-digit hardware identifier number. The NEMO10 has the MAC address of 00-
01-95-xx-xx-xx, which is labeled on the bottom side of the external box.
Host
A user’s computer connected to the network
In Internet protocol specifications, the term "host" means any computer that has full two-way access to
other computers on the Internet. A host has a specific "local or host number" that, together with the
network number, forms its unique IP address.
Session
A series of interactions between two communication end points that occur during the span of a single
connection
Typically, one end point requests a connection with another specified end point and if that end point
replies agreeing to the connection, the end points take turns exchanging commands and data ("talking
to each other"). The session begins when the connection is established at both ends and terminates
when the connection is ended.
Client/Server
Client/server describes the relationship between two computer programs in which one program, the
client, makes a service request from another program, the server, which fulfills the request.
A server is a computer program that provides services to other computer programs in the same or
other computers, whereas a client is the requesting program or user in a client/server relationship. For
example, the user of a Web browser is effectively making client requests for pages from servers all
over the Web. The browser itself is a client in its relationship with the computer that is getting and
returning the requested HTML file. The computer handling the request and sending back the HTML file
is a server.

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Table 1-1 Acronym Table
ISP Internet Service Provider
PC Personal Computer
NIC Network Interface Card
MAC Media Access Control
LAN Local Area Network
UTP Unshielded Twisted Pair
ADSL Asymmetric Digital Subscriber Line
ARP Address Resolution Protocol
IP Internet Protocol
ICMP Internet Control Message Protocol
UDP User Datagram Protocol
TCP Transmission Control Protocol
DHCP Dynamic Host Configuration Protocol
SMTP Simple Mail Transfer Protocol
FTP File Transfer Protocol
PPP Point-To-Point Protocol
PPPoE Point-To-Point Protocol over Ethernet
HTTP HyperText Transfer Protocol
DNS Domain Name Service
SNMP Simple Network Management Protocol
UART Universal Asynchronous Receiver/Transmitter
Bps Bits per second (baud rate)
DCE Data Communications Equipment
DTE Data Terminal Equipment
CTS Clear to Send
DSR Data Set Ready
DTR Data Terminal Ready
RTS Request To Send

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2: Getting Started
This chapter describes how to set up and configure the NEMO10 in the first place by using the test
bed included in the NEMO10-SK.
-2.1 Board layout and connectors explains the board layout for the NEMO10 and the test bed for
it and the connectors.
-2.2 Connecting the Hardware describes how to connect the power, the network, and the serial
device to the NEMO10.
-2.3 Accessing Console Port describes how to access the console port using a serial console at a
local site or telnet console at a remote site.
-2.4 Command Usages described how to use command set of the NEMO10 to configure and
view parameter values and status.
Following items are pre-required to get started.
- One DC power adapter (included in the NEMO10-SK package).
- One serial console cable for configuration (included in the NEMO10-SK package).
- One PC with Network Interface Card (hereafter, NIC) and/or one RS232 serial port.
- Terminal emulation program running on the PC
- One Ethernet CAT5 cable
2.1 Board layout and connectors
2.1.1 The NEMO10 module
The NEMO10 is a DIL (Dual-In-Line) package module for on-board installation. It provides the external
interface pins for power, switch, LED, UART and the RJ45 connector for Ethernet. The pin-out of the
NEMO10 is described in the Table 2-1. Figure 2-1 shows the layout of the NEMO10.

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Table 2-1 Pin-out for the NEMO10 external interface
Pin NO. Description
1 GND
2 Reset(High Active)
3 N.C
4 N.C
5 LED (Ethernet Link/Collision)
6 Ethernet Tx-
7 Ethernet Tx+
8 Ethernet Rx+
9 Ethernet Rx-
10 Vcc
11 LED (Ready)
12 LED (Ethernet Act)
13 Vcc
14 Console/Data switch
(High: Data, Low: Console)
15 Serial DSR
16 Serial CTS
17 Serial DTR
18 Serial RTS
19 Serial Rx
20 Serial Tx
21 Factory Reset switch (Low Active)
22 GND
23 LED (Serial Tx)
24 LED (Serial Rx)
(45 mm x 45 mm x 18.5 mm, 24 pin DIL package, 2.54 mm pitch)

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Figure 2-1. Layout and dimension of the NEMO10
2.1.2 Test bed
The NEMO10-SK includes a test bed (carrier board) that provides serial connections to the NEMO10
DIL module. The test bed contains 10-Base-T RJ45, LEDs, a voltage regulator, a power supply circuit,
TTL to RS-232, RS232 to TTL conversion hardware, RS232 DB9 connector, a factory reset switch,
console/data switch. The test bed allows the engineers to immediately begin developing and testing
software applications for the NEMO10, rather than delaying the process until the hardware interface
for their product is complete. Table 2-2 shows the pin assignment of the test bed, and Table 2-3 shows

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the LED description of the board. The test bed has seven LED indicator lamps for status display. Four
lamps indicate the statuses of 10 Base-T Ethernet Rx, Tx, Collision/Link and Act. Next lamp indicates
statuses of receive and transmit of the serial port for data communication. Next two lamps indicate the
system ready status and the system power-on status.
For the installation, users will have to plug in the NEMO10 module to the test bed considering the
interface pin direction. Figure 2-2 is a picture representing the dimensional factors and the layout of
the test bed, whereas the Figure 2-3 is the one that shows the picture of the NEMO10-SK after the
installation of the NEMO10 and the test bed.
Table 2-2 Pin-out for the NEMO10 test bed interface
Table 2-3 LEDs on the test bed
Pin NO. Description
1 GND
2 Reset (High Active)
3 LED (Ethernet Tx)
4 LED (Ethernet Rx)
5 LED (Ethernet Link/Collision)
6 Ethernet Tx-
7 Ethernet Tx+
8 Ethernet Rx+
9 Ethernet Rx-
10 Vcc
11 LED (Ready)
12 LED (Ethernet Act)
13 Vcc
14 Console/Data switch
(High: Data, Low: Console)
15 Serial DSR
16 Serial CTS
17 Serial DTR
18 Serial RTS
19 Serial Rx
20 Serial Tx
21 Factory Reset switch
(Low Active)
22 GND
23 LED (Serial Tx)
24 LED (Serial Rx)
LED NO. Description
1 Power
2 Ethernet Act
3 Ethernet Link
4 Serial Rx/Tx (2-color)
5 Ready

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Figure 2-2. Board layout and dimension of the test bed

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Figure 2-3. Picture of the NEMO10 test bed and the NEMO10-SK after the installation
2.2 Connecting the Hardware
This section describes how to install the NEMO10 onto the test bed and how to connect the test bed to
the serial device for the first time test.
- Plug the NEMO10 module to the test bed
- Connect the power to the test bed
- Connect the Ethernet cable between the test bed and Ethernet hub or switch
- Connect the serial data cable between the test bed and a serial device

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2.2.1 Install the NEMO10 onto the test bed
Plug the NEMO10 module onto the test bed. Refer to the Figure 2-4 for the installation.
Figure 2-4. Installation of theNEMO10 module to the test bed
2.2.2 Connecting the Power
Connect the power jack to the power jack of the test bed using DC power adapter included in the
package. If the power is properly supplied, the [Power] LED of the test bed will maintain solid red.
Figure 2-5. Connecting the power to the test bed
2.2.3 Connecting to the Network
Connect the one end of the Ethernet cable to the 10Base-T port o the test bed and the other to the
Ethernet network. If the cable is properly hooked up, the NEMO10 will have a valid connection to the
Ethernet network by indicating:
- [Link] LED of the test bed maintains solid green
- [Collision/Act] LED continuously blinks to indicate the incoming/outgoing Ethernet packets
If any of the above does not happen, the NEMO10 test bed is not properly connected to the Ethernet
network.

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Figure 2-6. Connecting a network cable to thetest bed
2.2.4 Connecting to the Device
Connect the serial data cable between the test bed and the serial device. If necessary, supply the
power to the serial device attached to the NEMO10 test bed.
Figure 2-7. Connecting a serial device to the NEMO10

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2.3. Accessing Console Port
There are two ways to access console port of the NEMO10 depending on whether the user is located
at a local site or a remote site.
- Serial console:
Local users can connect directly to the serial console port of the NEMO10 using serial
console/data cable (null-modem cable). The serial port of the NEMO10 is used as the console
port as well as the data port. To use the serial port as the console port, slide Data/Console switch
on the test bed to the Console side.
- Remote console:
Remote users can make a telnet connection to the remote console port (port 23) of the NEMO10
via TCP/IP network.
Both methods require the user to log into the NEMO10 in order to continue.
2.3.1 Using Serial Console
1) Connect the one end of the serial console cable to the DB9 serial port of the NEMO10 test
bed.
Figure 2-8. Connecting a serial console cable to the NEMO10 test bed
2) Connect the other end of the cable to the serial port of user’s computer.
3) Slide Data/Console switch (SW2) on the NEMO10 test bed to Console side.
SW
2
Figure 2-9. Data/Console switch of the NEMO10

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4) Run a terminal emulator program such as HyperTerminal. Set up the serial configuration
parameters of the terminal emulation program as follows:
9600 Baud rate, Data bits 8, Parity None, Stop bits 1, Hardware flow control
5) Press [ENTER] key.
6) Type the user name and password to log into the NEMO10. A factory default setting of the
user name and password are both admin.
7) If the user logged into the NEMO10 successfully, command prompt screen will appear on the
computer as shown in Figure 2-10.
login: admin
password: *****
Type 'help' to get command usages
> help
set group par1 [par2 ...] + <CR>
- group = 'ip','host','serial' or 'admin'
- par1 ... = configuration parameters. Use * to keep a parameter's value
get [group] + <CR>
- group = 'ip','host','serial','admin' or 'status'
- If group is specified, shows settings of the group.
- If group is omitted, shows settings of all groups.
factorydefault [option] + <CR>
- if option is omitted, all parameters are set with factory default values.
- if option='-ip',
all parameters except IP settings are set with factory default values.
help [group] + <CR>
- If group is omitted, shows this screen.
- If group is specified, shows 'set' command usage of the group.
save + <CR>
- Save changes
exit + <CR>
- Exit without rebooting the device
reboot + <CR>
- Exit and reboot the device
>Figure 2-10. The NEMO10 console screen
From the command prompt screen, users can set, get and save configuration parameter values using
‘set’, ‘get’and ‘save’command. Users also can exit the console or reboot the device using ‘exit” and
‘reboot’command. The usage of the commands can be found using ‘help’command. For command
usages description, please refer to section 2.4 Command usage.
2.3.2 Using Remote Console
The NEMO10 provides remote console feature via telnet as well as serial console so that users can
access the NEMO10 at remote site for configuration and monitoring purpose. The IP address of the
NEMO10 must be known before users can access the remote console port. The port number for the
remote console is 23, which is a TCP port number assigned for Telnet.

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Only one user can log into the remote console or serial console at a time. If the serial console is
established while a remote console is established, current remote console will be halted and no more
remote console will be established until serial console is finished.
To access remote console of the NEMO10, please use the step as follows:
1) Run a telnet program or a program that supports telnet functions such as TeraTerm-Pro or
HyperTerminal. The target IP address and the port number should be those of the NEMO10.
If required, specify the port number as 23. Type the following command in the command line
interface of your computer.
telnet 192.168.1.254
Or run a telnet program with parameters as follows.
Figure 2-11. Telnet program set up example
2) The user has to log into the NEMO10. Type the user name and password. A factory default
setting of the user name and password are both admin.
3) If the user logged into the NEMO10 successfully, the same command prompt screen as the
one of serial console will be displayed. The user can set, get, save configuration parameters
and exit console, reboot the device as like the serial console.
4) If serial console or the other remote consoles are connected already, new console will not be
established at all.
2.4 Command Usage
The NEMO10 provides several simple commands for configuration and control of the NEMO10. Table
2-4 summarizes command set which NEMO10 supports.

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Table 2-4 NEMO10 command set summary
Command Description Result
set group par1 [par2 ...] + <CR> Set configuration parameters
- group = 'ip', 'host', 'serial' or 'admin'
- par1 ... = configuration parameters. Use * to
keep a parameter's value
If success,
“OK”+ <CR> + <LF>
If error
“ERROR”+ <CR> + <LF>
get [group] + <CR> Get configuration parameter values
- group = 'ip', 'host', 'serial','admin' or 'status'
- If group is specified, shows settings of the
group.
- If group is omitted, shows settings of all groups.
Parameter value display
help [group] +<CR> Shows command usage screen.
- If group is omitted, shows help screen.
- If group is specified, shows 'set' command
usage of the group.
Help message display
factorydefault [option] + <CR> Restore factory default values
- if option is omitted, all parameters are set with
factory default values.
- if option='-ip', all parameters except IP settings
are set with factory default values.
If success,
“OK”+ <CR> + <LF>
If error
“ERROR”+ <CR> + <LF>
save + <CR> Save changes If success,
“OK”+ <CR> + <LF>
If error
“ERROR”+ <CR> + <LF>
exit + <CR> Exit without rebooting the device (changes are
not applied) If success, “OK”+ <CR> + <LF>
If error
“ERROR”+ <CR> + <LF>
reboot + <CR> Exit and reboot the device None
2.4.1 ‘set’Command
With ‘set’command, users can configure parameter values of the NEMO10 for each environment.
Basic ‘set’command usage is as follows:
set group par1 [par2 ...] + <CR>
where,
group = 'ip','host','serial' or 'admin'
par1 par2 ... = configuration parameters. Use * to keep a parameter's value
The ‘group’is the category where the parameters should be entered. For example, if users want to set
parameters related to the IP configuration, use set command as shown in the Figure 2-12.