1. One-Stop Solution in Device Networking
SENA
One-Stop Solution in Device Networking
HelloDevice Super series
SS100/110/400/800
Dec, 2004

2. Contents Overview Configuration Ways Text-based Interface
Web-based Interface
Features
Operation Modes
TCP/UDP Multiple Remote Hosts
Security
PC Card Support
Data Logging
Event Handling
SNMP
Dynamic Domain Name
Customization Support
Case Studies
Door Access Application (Customized)
Medical Application (Customized)
Bridge Monitoring System

3. Overview (1) Linux-based Open platform (kernel 2.4.2)
Supports 1/4/8 serial port (RS232/422/485)
1 PCMCIA slot
ATA flash memory, LAN/WLAN, PSTN/CDMA Modem
Flexible host mode mode
TCP/UDP single/multi-session support
Primary/Secondary host support
Powerful Security
Industry-standard encryption support
SSL v3, and TLS v1
Encryption algorithm support
3DES, and RC4
Flexible customization
Linux CLI with development environment
Source file add/modify/compile/link in 1MB user space
Web customization

4. Overview (2) Connections Remote Host Host (SS) Device
Any device with serial interface
RS-232
RS-422
RS-485
LAN
Wireless (802.11b)
PSTN
Mobile (CDMA)

5. Text-based Interface Web-based Interface
Configuration Ways
Text-based Interface
Web-based Interface

6. Text-based Interface System Console Telnet (port 23) or SSH (port 22)
Privileges
Admin user can access and edit configuration parameters.
Root user can have full control on SS via CLI, in addition to access and configuration rights.

7. Web-based Interface
Web-based interface using web browsers such as IE, Netscape and Opera

8. Features Operation Modes TCP/UDP Multiple Remote Hosts Security
PC Card Support
Data Logging and Event Handling
SNMP
Dynamic Domain Name
Customization Support

9. Various operation modes
Remote host
TCP/UDP
device
TCP/UDP socket
Remote host
modem emulation
DTE
TCP socket
Dial-in/out mode
Remote host
modem
TCP socket
modem
DTE

10. TCP/UDP Multicasting Overview Configuration Connection
Application Diagram
Application Areas

11. Overview
SS supports an enhancement transmission method "TCP/UDP multicasting", which transmits serial device data to multiple hosts simultaneously.
Max. 32 hosts (incoming+outgoing) per one port allowed.
Max. 16 outgoing connections (registered remote hosts) per one port allowed
Each registered TCP host can have a backup host
UDP host mode does not support backup host since there is no way to check status of primary remote host.
Multicasting feature is very useful in application areas where user needs to transmit a message to several display signboard devices simultaneously.

12. Configuration Access the SS web interface
Choose Serial port --> Configuration --> Port # --> Remote host configuration

13. Connection

14. Application Diagram

15. Application Areas
Applications which require Multiple data transmission include:
LED Signboard,
Electronic Metering,
Any customer requiring Multiple data transmission.

16. Security SSL Encryption: Overview SSL Encryption: Configuration
SSL Encryption: Connection
Other Security Features
Application Areas

17. SSL Encryption: Overview
SSL creates a secure connection between a client and a server, over which any amount of data can be sent securely.
By setting the cryptography method as one of SSLv2, SSLv3, SSLv3 rollback to v2 or TLSv1, the Super Series can communicate with other device supporting SSL/TLS cryptography method in encrypted sessions.
SSL configuration settings are available only when the host mode is set to TCP or Modem Emulation mode.
SSL works by using a private key to encrypt data that's transferred over the SSL connection.

18. SSL Encryption: Configuration
Access the SS web interface
Choose Serial port --> Configuration --> Port # --> Host mode configuration
Choose Serial port --> Configuration --> Port # --> Cryptography configuration

19. SSL Encryption: Connection
Run SSL or TLS client application
openssl s_client –connect :6001 –ssl3

20. Other Security Features
Serial data encryption
3DES, RC4
Static Key encryption
Secured Web interface
HTTPS
IP filtering
serial port based IP filtering
box based IP filtering
Secured file uploading
SCP

21. Application Areas
Applications which require more secure communications include:
Financial,
Retail/POS,
Government,
Medical, and
Any customer requiring enhanced security to protect sensitive information.

22. PC Card Support Overview CF Memory card configuration
Modem card configuration
LAN card configuration
WLAN card configuration

23. Overview
PC card types that can be added to the SS include a serial modem, compact-flash card, wireless LAN card, and a network LAN card.

24. CF Memory card configuration
Access the SS web interface
Choose PC Card --> Configuration

25. Modem card configuration
Access the SS web interface
Choose PC Card --> Configuration

26. LAN card configuration
Access the SS web interface
Choose PC Card --> Configuration

27. WLAN card configuration
Access the SS web interface
Choose PC Card --> Configuration

28. Data Logging and Event Handling
Overview
Data Logging Configuration
Data Event Handling Configuration
Data Event Handling Test

29. Overview
The SS can capture all system and port data, and save it into a log file. This buffer can be viewed from the web, saved to memory, or saved to a Flash Card, syslog server or NFS server.
System logs track events such as logins, authentication failures, system configuration changes, and more.
Port logs document the data flow through the SS serial ports.
In addition, the SS can be configured for system alerts and notifications. It can send messages when an alarm message is detected in the serial port data.
The SS uses SMTP for sending notifications and SNMP for trap alerts.

30. Data Logging Configuration
Access the SS web interface
Choose Serial port --> Configuration --> Port # --> Port logging

31. Data Event Handling Configuration
Access the SS web interface
Choose Serial port --> Configuration --> Port # --> Port logging

32. Data Event Handling Test
Event Handling via SNMP browser and SMTP

33. Overview Configuration Connection
SNMP
Overview
Configuration
Connection

34. Overview
SS supports SNMP that provides status and performance of connected serial devices through their Ethernet connections.
Applications such as NMS or an SNMP browser can exchange information with the SS.
The SS supports SNMP authentication, Login, and Link up traps.
The SS supports both versions 1 and 2 of the SNMP protocol and delivers the System and Port alerts as traps.

35. Configuration Access the SS web interface
Choose Network --> SNMP configuration

36. Connection
Authentication, Login, and Link up traps in Kiwi SNMP browser

37. Overview Configuration and Connection
Dynamic Domain Name
Overview
Configuration and Connection

38. Overview
Dynamic DNS Protocol enables users to access the SS via a domain name for floating IP environments such as DSL line and DHCP.
To use this service, users must set-up an account in Dynamic DNS Network Services and add domain name, user name and password on the SS DDNS configuration page.
Whenever user reboots the SS in floating IP environments, it sends updated IP address to Dynamic DNS Network Services.

39. Configuration and Connection
Access the SS web interface
Choose Network --> Dynamic DNS configuration
Access the SS web interface and use domain name
For e.g., ismdemo.dyndns.biz

40. Customization Support
Overview
User Web Customization - HTML pages
User Web Customization – CGI & Java pages
Serial Filter Application

41. Overview Web customization options Plain HTML files CGI written in C
User application implementation
Filter applications in C
Other applications in C or shell scripts
To quickly develop custom applications that run on the HelloDevice Super Series, SDK (Software Development Kit) is needed.
SS SDK is a 256MB CF card composed of executable binaries (including gcc), header files, and library files.
Executable binaries run on SS (MPC855T Linux)
Header files and Library files are compatible with SS platform
With SS SDK, users can compile their own C/C++ source code to run on SS without installing cross-compile utilities on their PC.

42. User Web Customization - HTML pages (1/3)
Preparation
If you are using Windows, using SCP (secure copy protocol) client tools for Windows will be handy for file transfer from/to SS
Winscp (GUI)
Install as other applications
Pscp (command line interface)
Download
Copy pscp.exe into C:\Windows directory

43. User Web Customization - HTML pages (2/3)
Running User HTML file
Prepare index.html file and other related files (e.g. index.html and webtest.swf)
Just copy the files to SS, /usr2/usrweb directory using SCP tools (e.g. winscp) and it will work!

44. User Web Customization - HTML pages (3/3)
Browsing SS User Web Pages

45. User Web Customization – CGI & Java pages (1/3)
Preparation: Recognizing SDK Card
After recognition, SDK is mounted on /mnt/flash/ directory
editconf
Welcome to SS-110 configuration page …
IP mode: DHCP IP address:
Select menu:
1. Network configuration
<Enter> Refresh
---> 3
PC Card configuration
Currently configured PC card: (none)
1. Change card configuration
2. Stop the card service to disable or remove card
3. Probe a new card
<ESC> Back, <Enter> Refresh
Do you want to probe a new pc card? (y/n): y
A new PC card is discovered.
PC Card configuration
Currently configured PC card: ATA/IDE fixed disk card
Model: SanDisk SDP 5/3 0.6
Size: 257 MB
File system: ext2 …
--->
Welcome to SS-110 configuration page
Select menu:
1. Network configuration
6. Exit without saving
7. Exit and apply changes
8. Exit and reboot
<Enter> Refresh
---> 7
Are you sure to save changes? (y/n): y
Saving..
Configuration is saved successfully
Are you sure to apply changes? (y/n): y
Applying
Configuration is applied successfully

46. User Web Customization – CGI & Java pages (2/3)
Compiling and Copying files
Make working directory such as /mnt/flash/work
Copy cgi source file (e.g. ex.c) into the working directory
Compile *.c file with the option of “–L/mnt/flash/lib” (Library path)
Copy *.cgi binary file to /usr2/cgi-bin/ directory
Copy index.html that has CGI link in it to /usr2/usrweb/ directory

47. User Web Customization – CGI & Java pages (3/3)
Sample CGI Source file and Output
cat ex.c
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
main(int argc, int *argv[]) {
printf("Content-type: text/html\n\n");
printf("<html>");
printf("<body bgcolor=\"#0000C0\">");
printf("<b><font color=\"#FF0000\">This is a sample CGI page</font></b>\
n");
printf("</body>");
printf("</html>\n");
fflush(stdout); }
gcc -o ex.cgi ex.c -L/mnt/flash/lib
cp ex.cgi /usr2/cgi-bin/

48. Serial Filter Application (1/4)
SS Serial Filter Structure
Users just need to write filter application only to customize serial port application rather than writing whole source code
Typical situation for serial application customization:
Add/remove protocol header
Periodically check serial device

49. Serial Filter Application (2/4)
Sample file
Location = /mnt/flash/sample/filter
periodic_filter.c
Periodic query of the serial device application might start from here
empty_filter.c
Do nothing. Adding/removing header application might start from here

50. Serial Filter Application (3/4)
How to
Log into the SS (Telnet or SSH)
Copy sample file from SDK to working directory (e.g. /mnt/flash/work)
Compile source file (Be careful with compile options) gcc -o myfilter myfilter.c -L/mnt/flash/lib –lpthread
Copy compiled binary to /usr2 directory
Specify filter application and arguments using configuration web or menu configuration

51. Serial Filter Application (4/4)
Sample Filter and Output
cp /mnt/flash/sample/filter/periodic_filter.c ./myfilter.c
gcc -o myfilter myfilter.c -L/mnt/flash/lib -lpthread
cp myfilter /usr2
editconf …
Serial port configuration - Port #1 --> Filter application
Select menu:
1. Filter application path name: /bin/ss.filter
2. Filter application arguments:
<ESC> Back, <Enter> Refresh
---> 1
Enter a filter application full path name(ex: /bin/filter)
---> /usr2/myfilter
1. Filter application path name: /usr2/myfilter
---> 2
Enter filter application arguments
---> 'You will see this msg every 1 sec' 1

52. Case Studies Door Access Application (Customized)
Medical Application (Customized)
Bridge Monitoring System

53. Door Access Application (Customized)

54. Door Access Application (Customized)
Target Device : RF-ID Card Reader
Application Details:
Customer has added a user customized filtering program that transmits only needed serial-based RF's to the management station through the SS110.
As a result, the time that is required to process visitor’s door access requests has been dramatically minimized.
Why SS instead of the PS?
Fast response required  Local protocol parser application is required on the SS to reduce the network traffic

55. Bridge Monitoring System
SS110
System Architecture

56. Bridge Monitoring System
Target Device : Gage length deformation sensors on a Railway Bridge
Application Details:
Long gage length deformation sensors (GPS) that are installed throughout a railway bridge to gain actionable information from the bridge
Why SS110?
Powerful logging capability (Syslog server)
Wireless LAN thru PCMCIA slot

57. Medical Application Target Device: Medical Monitoring Device
Application Details:
Serial based medical devices are connected to Ethernet using the SS400/800
Medical devices are reset remotely by sending “serial-break” signal thru the SS
“Serial-break” feature is implemented using the SS customization feature

58. Contact SENA SENA Technologies, Inc. info@sena.com
Phone:
Fax:
Web Address:
210 Yangjae-dong Seocho-gu
Seoul , South Korea