Ntron ESERV-11T User manual

ESERV-11T and ESERV-12T
Ethernet to Serial Servers
User Manual

Table of Contents
ii ESERV-1xT (Rev. 1210)
INTRODUCTION .................................................................................................................................... 1
About ESERV-1xT Serial Servers ............................................................................................................................. 1
ESERV-1xT Serial Server Model Numbering............................................................................................................ 1
ESERV-1xT Serial Server Features........................................................................................................................... 2
N-TRON Ethernet Serial Server Configuration Software......................................................................................... 2
ESERV-1XT SERIAL SERVER HARDWARE...................................................................................... 3
Package Checklist .................................................................................................................................................. 3
ESERV-1xT Serial Server Enclosures and Mounting ................................................................................................ 3
LED Indicators(ESERV-1xT) ..................................................................................................................................... 3
Link LED...................................................................................................................................................................4
Ready LED ................................................................................................................................................................4
Serial Port LEDs ........................................................................................................................................................4
Mode Switch ......................................................................................................................................................... 4
Ethernet Connector ..............................................................................................................................................5
Port Connectors.................................................................................................................................................... 5
Power Connector .................................................................................................................................................. 6
Mounting Hardware............................................................................................................................................. 7
SERIAL SERVER SETUP AND CONNECTIONS ....................................................................... 8
Connecting the Power Supply .............................................................................................................................. 8
Connecting ESERV-1xT Serial Servers to Serial Devices ................................................................................... 8
Connecting the ESERV-11T......................................................................................................................................9
Connecting the ESERV-12T ......................................................................................................................................10
Connecting ESERV-1xT Serial Servers to a Network ....................................................................................... 10
Network Connection (10BaseT/100BaseTX) ..........................................................................................................10
Fiber Optic Connection ............................................................................................................................................10
ESERV-1xT Serial Server Configuration Connections ..................................................................................... 10
Configuring the ESERV-1xT Serial Server via the Network Connection ...............................................................10
Configuring the ESERV-1xT Serial Server via the Serial Port (Console Mode) ....................................................12

Table of Contents
iii ESERV-1xT (Rev. 1210)
ESERV-1xT Serial Server Operational Connections......................................................................................... 13
Using ESERV-1xT Serial Servers in Direct IP Mode .............................................................................................13
Using ESERV-1xT Serial Servers in Virtual COM Port Mode ...............................................................................14
Using ESERV-1xT Serial Servers in Paired Mode..................................................................................................15
Initiating a Hardware Reset on the Serial Server .............................................................................................. 16
Reloading Factory Defaults................................................................................................................................ 17
DESCRIPTION OF SERIAL SERVER PROPERTIES .............................................................18
Baud Rate ........................................................................................................................................................... 18
Character Count................................................................................................................................................. 18
Configuration Files............................................................................................................................................. 18
Data/Parity/Stop................................................................................................................................................. 18
Default Gateway ................................................................................................................................................. 18
Delimiter 1, Delimiter 2 and Delimiter Removal ............................................................................................... 19
Delimiter 1...............................................................................................................................................................19
Delimiter 2...............................................................................................................................................................19
Delimiter Removal ..................................................................................................................................................19
How Delimiters Work..............................................................................................................................................19
DHCP.................................................................................................................................................................. 20
Firmware Version .............................................................................................................................................. 20
Flow Control....................................................................................................................................................... 20
Forced Transmit................................................................................................................................................. 20
Hardware Version .............................................................................................................................................. 20
Inter-character Timeout..................................................................................................................................... 20
IP Address .......................................................................................................................................................... 21
Link Status ......................................................................................................................................................... 23
MAC Address ..................................................................................................................................................... 23
Model .................................................................................................................................................................. 23
Network Protocols .............................................................................................................................................. 23

Table of Contents
iv ESERV-1xT (Rev. 1210)
Network Watchdog............................................................................................................................................. 23
Paired Mode ....................................................................................................................................................... 23
Password............................................................................................................................................................. 23
Serial Interface Modes ....................................................................................................................................... 24
Serial Server Name............................................................................................................................................. 24
Server Serial Port Number................................................................................................................................. 24
Subnet Mask....................................................................................................................................................... 24
TCP (Transmission Control Protocol) ............................................................................................................... 25
UDP (User Datagram Protocol) ......................................................................................................................... 25
VCOM (Virtual COM Port)............................................................................................................................... 25
UPGRADING THE SERIAL SERVER FIRMWARE ................................................................26
Uploading the Firmware to the Serial Server .................................................................................................... 26
DIAGNOSTICS .....................................................................................................................................27
Testing a Serial Server Connection .................................................................................................................... 27
Testing a Virtual COM Port .............................................................................................................................. 28
APPENDIX A: DEFAULT SERVER SETTINGS........................................................................30
APPENDIX B: PRODUCT SPECIFICATIONS...........................................................................32
General Specifications ...........................................................................................................................................32
Controls, Indicators and Connector Specifications ............................................................................................34
Serial Interface Specifications ..............................................................................................................................35
Fiber Interface Specifications ...............................................................................................................................36
Network Specifications..........................................................................................................................................37
APPENDIX C: DIMENSIONAL DIAGRAMS .............................................................................39
APPENDIX D: CONNECTOR PINOUTS......................................................................................41
ESERV-11T Serial Port Pinouts.............................................................................................................................. 41

Table of Contents
v ESERV-1xT (Rev. 1210)
ESERV-12T Serial Port Pinouts.............................................................................................................................. 43
Standard Ethernet Cable RJ-45 Pin-out ................................................................................................................ 44
N-TRON LIMITED WARRANTY ........................................................................................................49

Introduction ESERV-1xT Serial Servers
1 ESERV-1xT (Rev. 1210)
INTRODUCTION
Thank you for purchasing an N-TRON product! This product has been manufactured to the
highest standards of quality and performance to ensure your complete satisfaction.
Figure 1. An ESERV-12T Serial Server
ABOUT ESERV-1XT SERIAL SERVERS
ESERV-1xT Serial Servers connect serial devices (RS-232, RS-422 or RS-485) to Ethernet
networks, allowing the serial device to become a node on the network. The serial ports can
be accessed over a LAN/WAN using Direct IP Mode, Virtual COM Port, or Paired Mode
connections. ESERV-1xT Serial Servers are available with 10BaseT /100BaseTX copper or
multimode fiber media options.
ESERV-1xT Serial Servers are built for use in industrial environments, featuring an IP30
approved slim line DIN rail mountable case. They operate from a range of DC power supply
voltages and feature pluggable terminal block power connectors.
ESERV-1XT SERIAL SERVER MODEL NUMBERING
ESERV-1xT Serial Servers are available with one or two serial connections. Network
connection options include 10BaseT/100BaseTX copper or mulitmode fiber. The following
diagram shows the model numbering scheme:

Introduction ESERV-1xT Serial Servers
2 ESERV-1xT (Rev. 1210)
Model Number
Features
ESERV-11T
1PORT, DB9, ESS, DIN, CU ETHERNET
ESERV-11T-ST
1PORT, DB9, ESS, DIN, FIBER, MULTIMODE, ST
ESERV-12T
2PORT, TB, ESS, DIN, CU ETHERNET
ESERV-12T-ST
2 PORT, TB, ESS, DIN, FIBER, MULTIMODE, ST
ESERV-1XT SERIAL SERVER FEATURES
One or two active serial port options (ESERV-11T/ESERV-12T)
All ports are software selectable as RS-232, RS-422 or RS-485 2- and 4-wire
Configuration can be done via network or direct serial connection
Slim line DIN rail mountable case
Accepts DC power over a wide voltage range
10/100 Mbps Ethernet with Auto Selection
LAN and WAN Communications
TCP Client or Server, or UDP operation - configurable
Virtual COM port and Paired Mode capabilities
Firmware Upload for future revisions/upgrades
Software Support - Windows 2000/2003 Server/XP/Vista
Configuration of Ethernet and serial port settings using N-TRON Serial Server Configuration Software.
N-TRON ETHERNET SERIAL SERVER CONFIGURATION SOFTWARE
N-TRON Ethernet Serial Server configuration software enables you to find connected serial servers, configure
them, upgrade serial server firmware, and save/load configuration files. It features a graphical user interface (GUI)
that is convenient and easy to use. The software also makes it easy to add and remove virtual COM ports on your
computer.

Hardware ESERV-1xT Serial Servers
3 ESERV-1xT (Rev. 1210)
ESERV-1XT SERIAL SERVER HARDWARE
ESERV-1xT Serial Servers are enclosed in DIN rail mountable enclosures and feature LED indicators, power,
Ethernet and serial connectors and a recessed Mode switch.
PACKAGE CHECKLIST
ESERV-1xT Serial Servers are shipped with the following items included:
ESERV-1xT Serial Server Module
Quick Start Guide
CD with User Manual, Quick Start Guide and firmware
ESERV-1XT SERIAL SERVER ENCLOSURES AND MOUNTING
All ESERV-1xT Serial Server models are built into similar enclosures. Modules are DIN rail mountable.
Front View of the ESERV-12T Serial Server
LED INDICATORS(ESERV -1XT)
ESERV-1xT Serial Servers have three LED indicators: a Link LED, a Ready LED and two Serial Port LEDs.
Figure 2. LEDs on 1 and 2 Port Serial Servers

Hardware ESERV-1xT Serial Servers
4 ESERV-1xT (Rev. 1210)
LINK LED
The Link LED illuminates (green) if the Ethernet connection is operating in 100BaseTX mode. The LED is off if the
mode is 10BaseT. When the LED is blinking it indicates that there is data traffic on the Ethernet link.
READY LED
The Ready LED (green) blinks once per second if the system is operating correctly. If the LED is off, it indicates the
system is not operating correctly.
SERIAL PORT LEDS
ESERV-11T serial servers feature one serial port. ESER-12T serial servers feature two serial ports. Each serial port
has an associated LED. Serial Port LEDs blink (green) when data is being transmitted or received on the serial port.
When the LED is On it indicates the serial port is open.
MODE SWITCH
A recessed momentary reset switch is located on the top of the enclosure. To activate the switch, insert a small
plastic tool through the hole in the enclosure and press lightly.
Figure 3. Top View of the Serial Server
The Mode switch can be used to:
Initiate a Hardware Reset
Enter Console Mode
Reload factory defaults
Note: Refer to Section 3. Serial Server Setup and Connections for more information on
using the Mode switch.

Hardware ESERV-1xT Serial Servers
5 ESERV-1xT (Rev. 1210)
ETHERNET CONNECTOR
Serial server models using 10BaseT/100BaseTX network connections use an RJ45 receptacle. The serial server is
connected to a standard Ethernet network drop using a straight-through RJ45 (male) Ethernet cable.
Figure 4. Ethernet Connector
Note: Refer to Appendix D for connection pin-outs.
Fiber Optic Connectors
Serial server models using multimode fiber Optic network connections use ST style connectors.
Figure 5. ST Fiber Optic Cable Connector
PORT CONNECTORS
ESERV-1xT Serial Servers use three serial port connector configurations, depending on the model:
ESERV-11T serial servers feature one serial port and use a DB-9M connector for RS-232 and a five-position
removable terminal block for RS-422 and RS-485 connections.
ESERV-12T serial servers feature two serial ports, both using five-position removable terminal blocks for RS-
232, RS-422 and RS-485 connections.