SIIG ID-DS0211-S1 Quick Installation Manual

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Introducing the Serial Device Server

The Serial Device Server-Dual Port allows to connect a serial
device to a Local Area Network (LAN) or Wide Area
Network (WAN).

Features and Benefits

• Convert serial device (RS-232, RS-422, RS-485) data/
signal into the TCP/IP package data/signal and
send them out with the Ethernet DataStream; or
convert the TCP/IP package data/signal into serial
device data/signal

• Support DHCP client mode, simplifying network
address configuration and management

• Support 10/100 Mbps Ethernet, auto-detected

• ARM-7 Series can be configured as network server
or network client. In the client mode, it can be
installed in network which is protected by NAT
router or firewall, without the need of a real IP
address

• Protected by setup password to prevent intruders

Serial Number Sticker

For future product return or exchange, this serial number
is required. Please keep it for your reference.

04-0483A

Serial Device Server­ Dual Port

Quick Installation Guide

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Overview

Serial Device Server-Dual Port is designed to make your
serial devices Internet ready instantly. ARM-7 Series of
Serial Device Server-Dual Port makes them the ideal choice
for connecting your RS-232 or RS-422/485 serial devices—
such as PLCs, meters, and sensors to an IP-based Ethernet
LAN, making it possible for your software to access serial
devices anywhere and anytime over a local LAN or the
Internet.

ARM-7 Series converter ensures the compatibility of
network software that uses a standard network API
(Winsock or BSD Sockets) by providing TCP Server Mode,
TCP Client Mode, and UDP Mode. ARM-7 Series’ Virtual
COM driver, software that works with COM port can be
set up to work over a TCP/IP network in no time. This
excellent feature preserves your software investment
and lets you enjoy the benefits of networking your serial
devices instantly.

ARM-7 Series converter supports manual configuration
via the handy web browser console and many protocols
including TCP, IP, UDP, HTTP, DHCP, ICMP, and ARP.
It is the best solution to network your serial devices.

Figure 1: Block Diagram

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Low-cost devices usually are equipped with low speed
processors and limited memories. In reality, they are
neither having the capability nor practicality to manage
complicated network TCP/IP protocols. ARM-7 Series is
a low cost while providing high performance network
solution by converting data stream between network
TCP/IP and popular serial port signals. In stead of
processing TCP/IP packets directly, devices need only
deal with those interface signals, which greatly simplifies
the complexity of TCP/IP network in linkage.

System Requirements

• Pentium II or equivalent PC

• Windows 2000 and above

Package Contents

• Serial Device Server-Dual Port

• Power Adapter and software CD

• Quick Installation Guide

Layout

Figure 2: Layout

Reset ButtonRS-422/485 Terminator

DC-In
Power Outlet

LAN

Serial Port
RS-232

Serial Port
RS-485/RS-422

LED Indicators

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Power Supply

The Serial Device Server-Dual Port is powered by a single
9V DC, 500mA (inner positive/outer negative) power
adapter. Connect the power line to the power outlet at the
left side of Serial Device Server-Dual Port and plug the
adapter into a reliable power outlet. If the power is
properly supplied, the SYS red color LED will blink
every second.

LAN Port

The network connection is standard RJ45. Simply connect
it to your network switch or Hub. When the connection is
made, the LAN LED indicator will light up. When data
traffic occurs on the network, red Tx & Rx LED indicator
will blink during data transferring and receiving.

Serial Port of RS-232/RS-422/RS-485

Connect the serial data cable between the converter and
the serial device. Follow the setup procedure to configure
the parameters of the converter.

LED Indicators

• SYS Red LED: Power indicated (when the power is
on the LED will flash every second )

• Rx Green LED: Network signal receiving indicated
(when receive any signal form network the LED will
flash)

• Tx Red LED: Network transmitting indicated (when
transmit any signal to network the LED will flash)

• LAN LED: On-line indicated (when converter link
to LAN the LED will be on) 100M- Green 10M- Red
LED

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Reset Button

Press the Reset button then turn on the power. Wait for
3 seconds. The converter will reset to factory default.

Terminator

There is terminator resistor built in. If the switch 1 & 2 are
set in ON position , 120 Ohm resistor is connected between
the signals.

RS 232 Writing Architecture

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RS-422/RS-485 Wiring Architecture

When you finish the steps mentioned above and the LED
indicators are as shown, the converter is installed correctly.
You can use the setup tool ETM.exe to set the IP Address.

To proceed with the advanced parameters setup, please
use a web browser (IE or Netscape) to continue the
detailed settings.

Converter Configuration

Initial IP Configuration

When setting up your converter for the first time, the first
thing you should d configure the IP address. This section
introduces the method to configure the device server IP
address. For more details about network settings, see
Web Console Configuration in next sub section.

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Device Management Utility

Device Management Utility named ETM.exe which is an
executable program in Windows environment. ETM
Setup Tool is used to detect and setup the installed
converters. It uses UDP broadcast packets to query and
configure converters on the network.

When you activate the tool, it will detect the existence of
the installed converters and display the converters status
such as IP address, Subnet Mask, MAC Address, and
Device ID, see Figure 3 on the next paage.

If your computer OS is Windows XP, WINDOWS
Firewall function is activated and ETM.exe will not detect
the converter’s IP address, therefore, you have to
temporarily disable WINDOWS Firewall function. After
finishing the parameters settings, you can restart
WINDOWS Firewall function.

Due to the nature of broadcast UDP packets, ETM has
following characteristics:

• Broadcast packets aren’t limited by subnet. Even if
the IP address of the converters and the computer
running ETM do not belong to the same subnet, it
still works fine.

• Broadcast packets can not pass routers. ETM can
only be used to monitor devices with computer
running ETM in the same segment of local area
network

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Figure 3

Menu View

Click View , then Refresh or F5 key to refresh the status.
ETM will send another query to get updated information,
see Figure 4.

Click View, then Exit or Alt+4 to exit the program, see

Figure 4.

Note: Always run Refresh after data change.

Figure 4

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Menu Config
Click Config, then IP Address, see Figure 5.

Figure 5

Press ENTER or select IP Address in the Config menu,
a dialog will be shown see Figure 6.

Note : Because ETM uses broadcast UDP packets,
for the sake of security, it allows configuration only
when device setup password is empty.

Figure 6