Technical data

Introduction
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VLINX ESR90x Industrial Ethernet Serial Servers allow connection of RS-
232, RS-422 or RS-485 devices to an Ethernet network. The serial ports can
be accessed over a LAN/WAN using
Direct IP Mode, Virtual COM Port, or
Paired Mode connections. The 10/100 Mbps Ethernet connection auto-
selects 10BaseT or 100BaseTX and indicates the type of connection with a
bi-color link light. ESR90x 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 AC or DC power supply voltages, support
redundant DC power and feature terminal block power connectors.
Figure 1. VLINX ESR90x Ethernet Serial Servers
Features
• Multi-interface serial ports
o The ESR901 features one multi-interface serial port and the
choice of standard DB-9M or removable terminal block
connections (switch selectable)
o The ESR902 features two multi-interface serial ports
o The ESR904 features four multi-interface serial ports
Manual Documentation Number ESR90x-1705m Chapter 1 1
B&B Electronics Mfg Co Inc – 707 Dayton Rd - Ottawa IL 61350 - Ph 815-433-5100 - Fax [phone] – www.bb-elec.com
B&B Electronics Ltd – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph [phone] – Fax [phone] – www.bb-europe.com
Introduction
o All ports are software selectable as RS-232, RS-422, RS-485
full duplex or RS-485 half duplex interfaces
o For all models Port 1 is software, or DIP switch selectable for
Console Mode operation (configuration via direct serial
connection)
• Slim line DIN rail mountable case
• Accepts AC or DC power over a wide volt range
• Redundant DC power supply input
• 10/100 Mbps Ethernet with Auto Selection
• LAN and WAN Communications
• TCP or UDP Client or Server operation - configurable
• Software Support - Windows 98/ME/2000/XP or NT 4.0
• Firmware Upload for future revisions/upgrades
• Configuration of Ethernet and serial port settings can be accomplished
using any of four methods:
o VLINX ESP Manager Software for Windows allows
configuration via a network connection or directly from the
Ethernet port of a computer (using an Ethernet crossover cable).
o
Web Server allows configuration via the network using a web
browser.
o
Telnet allows configuration via the network by accessing the
setup configuration menu.
o
Console Mode allows configuration through an RS-232 serial
port in using a VT100 Terminal Emulation program and an RS-
232 crossover cable.
• Virtual COM Driver Software for Windows - installs virtual COM
ports, viewable in the Windows Device Manager under
Ports (COM &
LPT)
. Virtual COM port provides access to any of the ports on the Serial
Server, like any other serial port (legacy, PCI, USB or PCMCIA) on the
computer. Any program running on the computer and using Windows-
based COM ports can access the serial devices attached to the Serial
Server. The LAN becomes transparent to the serial device and the
software running on the PC.
• Heart Beat Connection - selectable protocol ensures reliable
communications in Virtual COM Port or Paired Connection modes. This
feature restores the connections if communications are temporarily lost
at either end due to loss of power or the Ethernet connection.
2 Chapter 1 Manual Documentation Number: ESR90x-1705m
B&B Electronics Mfg Co Inc – 707 Dayton Rd - Ottawa IL 61350 - Ph 815-433-5100 - Fax [phone] – www.bb-elec.com
B&B Electronics Ltd – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph [phone] – Fax [phone] – www.bb-europe.com