Sollae Systems EZL-410 User manual

EZL-410 User‟s Manual
Version 1.5
Sollae Systems Inc.

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To all residents of the European Union
Important environmental information about this product
This symbol on this unit or the package indicates that disposal of this unit after its
lifecycle could harm the environment. Do not dispose of the unit as unsorted municipal
waste; it should be brought to a specialized company for recycling. It is your responsibility to
return this unit to your local recycling service. Respect your local environmental regulation. If in
doubt, contact your local waste disposal authorities.

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-Table of Content -
1. OVERVIEW.....................................................................................................................- 5 -
1.1. OVERVIEW ......................................................................................................................- 5-
1.2. COMPONENTS..................................................................................................................- 6-
1.3. SPECIFICATIONS ..............................................................................................................- 6-
1.3.1. Dimension .....................................................................................................................- 7 -
1.3.2. Pin Configuration..........................................................................................................- 8 -
1.3.3. Application Circuit......................................................................................................- 10 -
1.3.4. Network Interface.........................................................................................................- 11 -
1.3.5. Serial Interface.............................................................................................................- 11 -
2. INSTALLATION AND TEST.......................................................................................- 12 -
2.1. INSTALLATION METHOD................................................................................................- 12 -
2.1.1. Checking the Communication Environment................................................................- 12 -
2.1.2. Connecting to the Network..........................................................................................- 13 -
2.1.3. Configuring the Environmental Variables...................................................................- 13 -
2.2. TEST..............................................................................................................................- 13 -
2.2.1. Changing PC IP Address............................................................................................. - 13 -
2.2.2. Installing EZL-410......................................................................................................- 13 -
2.2.3. Connecting to Serial Port of PC.................................................................................. - 13 -
2.2.4. Communication Test....................................................................................................- 14 -
3. CONFIGURING ENVIRONMENTALVARIABLES................................................- 15 -
3.1. CONFIGURATION WITH EZCFGMP...................................................................................- 15 -
3.1.1. Local Search................................................................................................................- 15 -
3.1.2. Remote Search............................................................................................................. - 16 -
3.1.3. The differences between LOCAL SEARCH and REMOTE SEARCH.......................... - 17 -
3.1.4. Configuring with ezcfgmp ...........................................................................................- 18 -
3.2. CONFIGURATION BY CONSOLE ......................................................................................- 22 -
3.2.1. Entering the Console of EZL-410................................................................................- 22 -
3.2.2. Menu Structure............................................................................................................ - 23 -
4. THE OPERATION MODE OF EZL-410....................................................................- 25 -
4.1. NORMAL COMMUNICATION MODE ...............................................................................- 25 -
4.2. ISP MODE .....................................................................................................................- 25 -
5. NORMAL COMMUNICATION MODE ....................................................................- 28 -

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5.1. T2S...............................................................................................................................- 28 -
5.1.1. Communication ...........................................................................................................- 28 -
5.1.2. Connection Termination and Keep-Alive Function.....................................................- 28 -
5.2. ATC..............................................................................................................................- 29 -
5.3. COD .............................................................................................................................- 30 -
5.3.1. Communication ...........................................................................................................- 30 -
5.3.2. Connection Termination and Keep-Alive Function.....................................................- 30 -
5.3.3. Reconnection............................................................................................................... - 30 -
5.4. U2S...............................................................................................................................- 31 -
6. ATC MODE....................................................................................................................- 32 -
6.1. OVERVIEW ....................................................................................................................- 32 -
6.1.1. AT command format.................................................................................................... - 32 -
6.2. BASIC AT COMMAND SET (EXAMPLE:ATA,ATD ETC.)................................................- 32 -
6.3. EXTENDED AT COMMANDS (EXAMPLE:AT+PLIP ETC.)...............................................- 33 -
6.4. ON-LINE STATE AND COMMAND STATE .........................................................................- 33 -
6.4.1. Changing On-line State to Command State.................................................................- 33 -
6.4.2. Changing Command State to On-line State................................................................. - 33 -
6.5. EXAMPLE OF TCP CONNECTION ...................................................................................- 34 -
6.5.1. Example of Active Connection .................................................................................... - 34 -
6.5.2. Example of passive Connection...................................................................................- 34 -
6.6. EXAMPLE OF TCP DISCONNECTION ..............................................................................- 34 -
6.6.1. Example of active disconnection................................................................................. - 34 -
6.6.2. Example of passive disconnection...............................................................................- 35 -
7. TECHNICAL SUPPORT, WARRANTY, AND NOTES ON OPERATION.............- 36 -
7.1. TECHNICAL SUPPORT....................................................................................................- 36 -
7.2. WARRANTY ..................................................................................................................- 36 -
7.2.1. Refund .........................................................................................................................- 36 -
7.2.2. Free Repair Services...................................................................................................- 36 -
7.2.3. Charged Repair Services.............................................................................................- 36 -
7.2.4. Notes on Operation .....................................................................................................- 36 -
8. ORDERING INFORMATION.....................................................................................- 38 -
9. REVISION HISTORY..................................................................................................- 39 -

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1. Overview
1.1. Overview
Along with the development of the Internet, the demand for data communication
functions has increased recently. Data communication over the Internet requires using
TCP/IP, the Internet communication protocol. That is to say, in order to connect a
system to the Internet, TCP/IP protocol must be implemented. It is possible to
implement TCP/IP by directly implementing the protocol, porting public TCP/IP, or
using Operating System (OS). However, all these methods impose burdens on the
developer in time, cost, and technology.
ezTCP series, a Serial ↔ TCP/IP protocol converter product group of Sollae Systems,
enables you to use TCP/IP communication (the Internet communication) function simply
by “connecting the cable to a serial port”. ezTCP sends data from the serial port to the
Internet network after TCP/IP processing, and vice versa.
EZL-410 in ezTCP product group is a product that provides TCP/IP communication
through wired or wireless LAN. In other words, like other ezTCP products, EZL-410
sends data from the serial port to the wired or wireless LAN after TCP/IP processing and
vice versa.
EZL-410 has 4 serial ports therefore it provides TCP/IP function to 4 serial devices.
It provides not only DHCP but also PPPoE, so that it can be applied to the cable network
and the xDSL network.
As EZL-410 provides SSL security function, it can be used in a system that requires a
high level of security.
It is a modular type and 3.3V power is required.

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1.2. Components
EZL-410 Body
EZL-410 EVB (option)
5V Power Adapter (Option)
RS232C cable for PC connection (Option)
1.3. Specifications
Power
Input Voltage
3.3V (±10%)
Current
300mA typical
Dimension
70mm x 50mm x 9mm
Weight
About 18g
Interface
Serial
2x12 2.0mm pitch header
Network
2x12 2.0mm pitch header
(10/100Base-TX )
Serial Port
3.3V TTL (600bps ~ 115200 bps)
Network
10/100Base-TX
Protocols
TCP, UDP, IP, ICMP, ARP, DHCP, PPPoE, SSL
Communicati
on Mode
T2S
TCP Server Mode
COD
TCP Client Mode
ATC
TCP Server/Client Mode
(AT command emulation)
U2S
UDP
Utilities
ezcfgmp
Configuration Utility via LAN
ezTerm
Socket Test Program
Hotflash
Firmware download utility via TFTP
You can download free utilities and firmware from http://www.eztcp.com.

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1.3.1. Dimension
EZL-410 is a modular type and it has two 2mm pitch 2x12 male headers (JP1, JP2).

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1.3.2. Pin Configuration
JP1
Num
Name
I/O
Descriptions
1
VCC_33
PWR
3.3V Power
2
VCC_33
PWR
3.3V Power
3
RESET#
I
Reset (Active Low)
4
ISP#
I
Low: Firmware download mode when EZL-410 boots up
High: Normal mode (Internally pull-up)
5
GND
GND
Ground
6
GND
GND
Ground
7
RXD1
I
Receive Data from Serial Port 1 (COM1)
8
TXD1
O
Transmit Data to Serial Port 1 (COM1)
9
CTS1
I
Clear To Send 1 (COM1)
10
RTS1
O
Request To Send 1 (COM1)
11
RXD2
I
Receive Data from Serial Port 2 (COM2)
12
TXD2
O
Transmit Data to Serial Port 2 (COM2)
13
CTS2
I
Clear To Send 2 (COM2)
14
RTS2
O
Request To Send 2 (COM2)
15
RXD3
I
Receive Data from Serial Port 3 (COM3)
16
TXD3
O
Transmit Data to Serial Port 3 (COM3)
17
CTS3
I
Clear To Send 3 (COM3)
18
RTS3
O
Request To Send 3 (COM3)
19
RXD4
I
Receive Data from Serial Port 4 (COM4)
20
TXD4
O
Transmit Data to Serial Port 4 (COM4)
21
CTS4
I
Clear To Send 4 (COM4)
22
RTS4
O
Request To Send 4 (COM4)
23
GND
GND
Ground
24
GND
GND
Ground

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JP2
Num
Name
I/O
Descriptions
1
GND
GND
Ground
2
GND
GND
Ground
3
TPTX+
O
Ethernet Out+
4
TPTX-
O
Ethernet Out-
5
GND
GND
Ground
6
GND
GND
Ground
7
TPRX+
I
Ethernet In+
8
TPRX-
I
Ethernet In-
9
GND
GND
Ground
10
GND
GND
Ground
11
RUN LED
O
Status of EZL-410 LED (Active Low)
12
PWFBOUT
O
Should be connected as example
13
LINK_LED
O
Ethernet LINK(Active Low)
14
FDPLX_LED
O
Full duplex LED (Active High)
15
10M/ACT_LED
O
10M activity LED (Active High)
16
100M/ACT_LED
O
100M activity LED (Active High)
17
STS1
O
Status 1
(Low when TCP connected to serial 1 port )
18
STS2
O
Status 2
(Low when TCP connected to serial 2 port )
19
STS3
O
Status 3
(Low when TCP connected to serial 3 port )
20
STS4
O
Status 4
(Low when TCP connected to serial 4 port )
21
C_RXD
I
Debugging Console (Factory use only)
22
C_TXD
O
Debugging Console (Factory use only)
23
VCC_33
PWR
3.3V Power
24
VCC_33
PWR
3.3V Power

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1.3.3. Application Circuit
VCC_33
TPRX-
STS3
RTS2
STS1
RTS1
VCC_33 VCC_33
R10 330
TPTX-
LAN
R4 49.9S
TPRX-
D1
LED 12
D6
LED 12
TXD4 C_TXD
LEDs
ISP
VCC_33VCC_33
LINK_LED
D9
LED
1 2
FDPLX_LED
D5
LED 12
R8 330
STS2
PWFBOUT
TPTX+
CON1 P02-102-11A9
1 2 3 7 8 6 4 5
9 10 11 12
TD+ TD- TCT RD+ RD- RCT NC NC
CH_GND1 CH_GND2
HOLE1 HOLE2
JP1 HEADER 12X2 1 2 3 4 5 6 7 8 910 11 12 13 14 15 16 17 18 19 20 21 22 23 24
RXD3
TXD1
TPTX+
R9 330
EZL-410 APP 1.0 EZL-410 APPLICATION
A4
1 1
목요일
, 6
월
01, 2006
Title Size Document Number Rev Date: Sheet of
R6 330
RXD1 RXD2
RTS3
R1 330
STS4
TXD3
LINK_LED
TPTX-
R7 330
VCC_33
STS4
R2 330
C_RXD
RESET
RTS4
100M/ACT_LED
D2
LED 12
VCC_33
CTS3
FDPLX_LED
R11 330
JP2 HEADER 12X2 1 2 3 4 5 6 7 8 910 11 12 13 14 15 16 17 18 19 20 21 22 23 24
R3 330
D8
LED
1 2
RXD4
STS3
PWFBOUT
CTS1
R5 49.9S
STS2
D3
LED 12
VCC_33
ISP
VCC_33
RUN_LED
TPRX+
D4
LED 12
D7
LED
1 2
100M/ACT_LED ISP
VCC_33
CTS4
VCC_33
EZL-410
10M/ACT_LED
TPRX+
ISP
TXD2
CTS2
C21
100NFS
JP3
HEADER 3
1 2 3
RUN_LED
10M/ACT_LED
ISP
STS1

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1.3.4. Network Interface
EZL-410 senses the network speed (100M bps or 10M bps). And it senses 1:1 Ethernet
cable and cross over cable automatically (auto MDI/MDIX).
EZL-410 requires simple circuit for Ethernet interface. Refer to 1.3.3.
All Ethernet devices have its hardware address (MAC address). EZL-410 also has a
hardware address. The address is set in our factory.
1.3.5. Serial Interface
EZL-410 supports 4 serial ports. The serial port of EZL-410 is 3.3V level. To
communicate with 5V device or RS232, additional circuits are required.
User can set IP addresses to each serial port separately or set an IP address for all serial
ports.

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2. Installation and Test
2.1. Installation Method
You can install EZL-410 in the following steps.
Title
Item
Sub-item
Description
1.
Checking the
communication
environment
Check items
Network environment
3.1.4.
Serial port settings
3.1.4.
Application program to be
used
4.
2.
Connecting to the
network
Check method
Check if LINK LED is
ON.
1.3.4.
3.
Configuring the
environmental
variables
Configuration
method
Set by ezcfgmp, a utility
program for configuration
through the network.
3.1.
Setting in console
3.2.
By arp
(Temporarily set IP
address only)
Configuration
items
IP address related items
3.1.4.
Serial port related items
3.1.4.
Communication mode
(Decided depending on
application program)
5.
4. Application to the field
2.1.1. Checking the Communication Environment
Before installing EZL-410, check the network environment where EZL-410 is to be
installed, including the followings matters:
IP address environment (local IP, subnet mask, gateway, etc.)
Serial port type of the equipment to which EZL-410 is going to be connected
(RS232)
Serial port items of the equipment to which EZL-410 is going to be connected
(baud rate, data bit, parity, stop bit)
Application program protocol to be used (TCP/UDP, server/client, SSL, etc.)
For application program protocol to be used, see “5. Normal Communication
Mode”.

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2.1.2. Connecting to the Network
Connect EZL-410 to a hub that user want to connect.
2.1.3. Configuring the Environmental Variables
When network connection is completed, configure the environmental variables such as
IP address related items, serial port related items, and communication mode related
items by ezcfgmp or console.
For environmental variable configuration, see “3. Configuring Environmental
Variables.”
2.2. Test
You can perform test EZL-410 according to the following orders. The test method
described here is based on the assumption that the IP address of the PC is set to 10.1.0.2
and user uses an EZL-410-EVB that is an evaluation board for EZL-410.
2.2.1. Changing PC IPAddress
You can change the IP address of your PC as follows:
IP Address
10.1.0.2
Subnet Mask
255.0.0.0
Gateway IP Address
0.0.0.0
2.2.2. Installing EZL-410
Connect the EZL-410 with the PC through the crossed LAN cable. (When connecting
through a hub, use a one-to-one cable for this connection.) If Link LED of the LAN is on,
the connection is OK.
2.2.3. Connecting to Serial Port of PC
Connect the EZL-410 with the PC through the RS232 cable. And run a serial
communication utility –for example: Hyper Terminal or Tera Term Pro. And set the
configuration of the utility to [19200bps, 8 data bits, 1 stop bit, no flow-control] as same
as configuration values of EZL-410.
Then the preparation of test is completed.

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2.2.4. Communication Test
When the preparation for serial communication is finished, enter the following in the
DOS window on your PC, to connect to TCP through Telnet program.
"Telnet 10.1.0.1 1470"
Enter “123”on the Telnet window, and "123" will appear on the serial communication
utility. Enter “ABC”on the serial communication utility, and “ABC”will appear on the
Telnet window. Otherwise, communication test fails.

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3. Configuring Environmental Variables
3.1. Configuration with ezcfgmp
The Ezcfgmp is configuration utility of EZL-410 via the network. There are two
methods of communication for EZL-410 –LOCAL SERACH and REMOTE SERACH.
The LOCAL SEARCH method searches EZL-410 in the local network with UDP local
broadcast. And the REMOTE SEARCH method searches EZL-410 in any network with
IP address if the network is connected to the user‟s network.
3.1.1. Local Search
The LOCAL SEARCH method use UDP local broadcast with MAC address. So its
benefit is that user can search EZL-410 although the user doesn‟t know the IP address of
EZL-410. For LOCAL SEARCH, user should select [LOCAL] radio button and press
[Search EZL-400 Series]. Then the ezcfgmp searches all EZL-410es in the local network.
The found EZL-410es appear in the [Search List] window in form of its MAC address.

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If user clicks the MAC address of among the EZL-410es and press [Read] button, the
main windows will be appeared.
It is impossible to search EZL-410 outside of the network (router).
3.1.2. Remote Search
The REMOTE SEARCH method searches EZL-410 with the IP address. The [Remote
Search] item should be activated for this method.
For the REMOTE SEARCH, user should select the [REMOTE] radio button in the
initial window and input an IP address and press [Search EZL-400 Series], then the
ezcfgmp searches EZL-410 with the IP address.

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The found EZL-410 is appeared in the [Search List] window. If the user double-clicks
the IP address or presses [Read] button, the main window is appeared.
When it doesn‟t work because of firewall, the user should open UDP 50005 port,
because the REMOTE SEARCH of the ezcfgmp uses UDP 50005 port.
3.1.3. The differences between LOCAL SEARCH and REMOTE
SEARCH
The following table shows the differences between LOCAL SEARCH and REMOTE
SEARCH.
LOCAL SEARCH
REMOTE SEARCH
Communication
Method
UDP broadcast
UDP Unicast
Limitation
Inner local network
All regions connected with
networks
Differentiation
MAC Address
IPAddress
UDP Port Number
Random
50005
Advantage
Possible Searching and
Configuration although user
doesn‟t know the IP address
Possible Searching and
Configuration if the network
is connected
Defect
It can be used in the local
network
1. User should know the IP
address
2. Firewall problems can be
occurred

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3.1.4. Configuring with ezcfgmp
The following is the main window of the ezcfgmp. User can configure the EZL-410 in
the main window more easily.
MAC Address
It is the MAC address of EZL-410. This value is set in the factory and it cannot be
altered.
Unique IPAddress
EZL-410 can use one IP address for four COM ports or the IP addresses can be set to
each COM ports differently. This option is for that EZL-410 uses only one IP address.
The [Multi IP] option is for whether EZL-410 user only one IP address or not.

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Subnet Mask
This item is for subnet mask of the network.
Gateway IPAddress
This item is for the gateway‟s IP address of the network.
Multi IP
If this option is set as [Yes], each COM ports can have their own IP addresses. The IP
addresses of each COM ports are configured in the [Local IP Address]. In this time, user
should set its IP addresses as same subnet mask.
IPv4 Type
User can select IP address types –static IP, DHCP, and PPPoE.
IPv6 Type
It is reserved.
EAPoL
It is reserved.
Password
Password is used for that user configures EZL-410 with ezcfgmp or logins via telnet
client. If EZL-410 is set with a password, user should input the password in this item to
configure the EZL-410.
For changing the password, use [Change PWD].
ARP
Whether to set IP address using ARP protocol. When this option is enabled, EZL-410
uses the destination IP address of the first packet coming to its MAC address as its own
IP address temporarily.
TELNET
Only when this option is enabled, you can log in Telnet, to control or monitor EZL-410
through the console.

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HTTP
It is reserved.
SSL
This option shows whether SSL is enabled or not. But it can‟t be set with ezcfgmp but
console with “env ext”.
REMOTE Search
To enable a REMOTE SEARCH function, enable this option.
MUX Type
This option is for setting the communication mode of EZL-410 among T2S, ATC, COD,
and U2S.
Local IPAddress
If EZL-410 is set as multi IP address, this item is for the IP address of each COM ports.
Each IP addresses should be in a same subnet.
Local Port
It defines local ports of each COM ports.
Peer IPAddress
It defines peer IP addresses of each COM ports.
Peer Port
It defines peer port of each COM ports.
Timeout
When EZL-410 operates as TCP such as T2S, COD and ATC, connection is closed if
data communication is not continued as long as the time set to this item unless this is set
to 0 (unit: second)
Baud Rate
It defines the speed of each COM ports.