B&B Electronics ESR901W485, ESR904W ESR90xW Startup Procedure, Ieee 802.11g, Package Checklist

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Introduction

IEEE 802.11g

IEEE 802.11g standard specifies a WLAN that operates on the 2.4 GHz band at data rates up to 54 Mbps, but is backward compatible with the earlier 802.11b standard (which operates at up to 11 Mbps). Systems can incorporate 802.11b and 802.11g equipment and they will interoperate. However, when connected into the same network the 802.11g equipment will operate at the 11 Mbps limitation of the 802.11b equipment.

For media access, 802.11 wireless networks use CSMA/CA, a scheme in which a station that intends to transmit ‘listens’ for traffic on the radio carrier frequency and sends data packets if the frequency is clear. If the receiving station receives the packet intact it sends an acknowledgement (ACK) to confirm the packet has been received. If the transmitting station does not receive an ACK it assumes a collision occurred and transmits again after a random delay period.

Communications distances vary depending on the type and thickness of material around an 802.11g node. The transmitter power output, the type of antenna used and the amount of attenuation through materials also affects the useable range. Electromagnetic noise, reflections, the amount of network traffic, other radio devices operating in the same frequency band also affect range and overall performance. In an infrastructure network the number of access points and their coverage pattern also affect how well the system operates. Typically an 802.11 device operating indoors will have a range from 100 feet minimum to about 300 feet maximum. Outdoors, some products, using high gain antennae may achieve line-of-sight ranges of five miles or more.

Security is a significant concern for WLAN users. Whether security threats originate intentionally or unintentionally, wireless systems are more susceptible than wired systems. Vlinx ESR90xW offer several security options including WEP (Wired Equivalent Privacy), LEAP (Lightweight Extensible Authentication Protocol) and others.

Documentation Number: ESR90xW-4905m

Chapter 1

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Introduction

ESR90xW Startup Procedure

Setup and configuration of your Vlinx ESR90xW wireless serial server is fast, straightforward and simple. You have several options from which to choose. The following procedure outlines an easy way to get your server set up and operational.

1. Package Checklist

To begin, check to see that you have everything you will require. The contents of your ESR90xW package should include:

•One Vlinx ESR901W232, ESR901W485, ESR902W or ESR904W Wireless Serial Server

•One SMA antenna

•One Operation Manual

•One Quick Start Guide

•One CD containing

oDevice Detection software

o Serial-IP Virtual COM Port Software o the Operation Manual (in pdf format) o the Quick Start Guide (in pdf format)

2.Hardware Setup

1.Connect the antenna to your ESR90xW

2.Connect a standard Ethernet (CAT5/RJ-45 straight through) cable from the PC network adapter to the ESR90xW Configuration Port

3.Connect 24 VAC or 12 to 30 VDC power to the ESR90xW

4.Connect the serial port on the ESR90xW to the serial port on your serial device. This is optional during the initial configuration steps but will be required for operation.

For RS-232 operation, your ESR90xW is configured as a DTE and uses a DB- 9M connector. Use a straight through RS-232 cable if your serial device is configured as a DCE. If your serial device is configured as a DTE you will have to use a null modem (crossover) cable.

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Chapter 1

Documentation Number: ESR90xW-4905m

B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104 – www.bb-elec.com

B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104 – www.bb-elec.com

B&B Electronics Ltd – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445 – www.bb-europe.com

B&B Electronics Ltd – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445 – www.bb-europe.com

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Contents ESR901W232, ESR901W485 ESR902W, ESR904W Vlinx Wireless Serial ServersEuropean Headquarters International HeadquartersDocumentation Number ESR90xW-4905m Table of Contents Introduction About Your Vlinx ESR90xW Wireless Serial ServerDirect IP Mode FeaturesWireless Network Configurations Wireless Networking BasicsVirtual COM Mode Serial Tunneling ModeIeee 802.11g ESR90xW Startup ProcedurePackage Checklist Hardware SetupOperation Power UpSet Up PC ConfigurationHardware Features Package ChecklistVlinx ESR90xW Hardware Serial Port Connectors Connections for Server ConfigurationConfiguration Port Connector Antenna ConnectorOther Hardware Connections Connection via the Wireless LANConfiguring Communications Modes and Protocols Device Configuration via Web ConsoleAccessing the Web Browser Configuring the Serial PortManaging Users Accounts Configuring Network PropertiesConfiguring Wireless Properties Wireless Output Power Security Method WEP o LeapVlinx Web Console Users Using Device Status InformationPolling Strings Adjusting the Behavior of Device Communication PortsTimeouts Using Multiple ConditionsDevice Discovery and Virtual COM Ports Vcom Port SetupDevice Detection Utility Product Specifications TCP Default Server PropertiesVlinx ESR90xW Dimensional Diagrams Server Name Serial Number PasswordDimensional Diagram of the Vlinx 902W DB-9M RS-232 DB-9 Pin-outs for RS-232 and RS-232/422/485 ConnectionsRS-422 RS-485 Pin +12 VDC to 30 VDC RX+ RJ-45 Pin-out for Configuration Port ConnectionRJ-45 Pin Signal Wire Color TX+Declaration of Conformity Declaration of Conformity

VLINX WIRELESS SERIAL SERVER, ESR901W232, ESR904W, ESR901W485, ESR902W specifications

B&B Electronics has made significant strides in the realm of wireless communication technology with its series of products designed for reliable, high-performance connectivity. Among their offerings, the ESR902W, ESR901W485, ESR904W, and ESR901W232 stand out as essential tools for businesses looking to enhance their serial device communication capabilities. Each model comes with unique features tailored to different applications, ensuring versatile solutions for various industrial settings.

The ESR902W is a robust wireless serial server that converts RS-232 serial data into a 2.4GHz wireless radio connection. This device supports a broad range of serial data rates and can maintain reliable connections up to 1,200 feet in line-of-sight conditions. With its simple setup and compatibility with numerous protocols, the ESR902W is ideal for remote monitoring and control applications where conventional wired communication is impractical.

The ESR901W485 version takes things a step further by offering support for RS-485 serial connections. This model is particularly beneficial in environments with multiple devices and longer distance needs. Its multi-drop capability allows for the connection of up to 32 devices on a single network, providing a seamless way to manage extensive operations. Like the ESR902W, it also features a robust wireless link that enhances flexibility and reduces installation costs.

The ESR904W offers unmatched performance with its four serial port capabilities, making it suitable for applications requiring simultaneous connections to multiple devices. This model is known for its network scalability, allowing users to easily integrate additional devices without sacrificing performance. It seamlessly handles complex communication tasks in industries ranging from manufacturing to transportation.

Finally, the ESR901W232 model focuses on delivering reliable RS-232 connectivity. With built-in security features such as AES encryption and an accessible web interface for monitoring, this wireless serial server is optimized for secure data transmission, making it perfect for sensitive applications that demand high security.

The VLINX Wireless Serial Server technology underpins these devices. Utilizing various wireless protocols, including Wi-Fi and Zigbee, these servers offer a range of communication options based on application requirements. With features such as robust packet handling, automatic data buffering, and user-friendly configuration interfaces, B&B Electronics ensures that their products deliver reliable and efficient communication solutions suited for diverse industrial landscapes. Overall, these wireless serial servers are valuable components for organizations seeking to modernize their data communication infrastructure while enhancing operational efficiency.
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