Vlinx ESR90xW Hardware

Connectors

Configuration Port Connector

One standard RJ-45 receptacle that allows the serial server to be connected to personal computer for programming, troubleshooting and device configuration. A standard straight-through RJ-45 (male) Ethernet cable can be used for this purpose. (This port is not intended to connect directly to an Ethernet network.)

Antenna Connector

The antenna connector is a reverse SMA connector.

(An omni-directional antenna is supplied with ESR90xW wireless serial servers. All ESR90xW serial servers are FCC-certified when the supplied antenna is used.)

Serial Port Connector(s)

ESR901W232: One DB-9M connector

ESR901W485: One five-terminal removable terminal block

ESR902W: Two DB-9M connectors

oPort 1: RS-232

oPort 2: software selectable for RS-232, RS-422 or RS-485

ESR904W: Four DB-9M connectors

oPorts 1 & 3: RS-232

oPorts 2 & 4: software selectable for RS-232, RS-422 or RS- 485

Power Connector

The power connector is a removable terminal block with four terminals. From top to bottom the terminals are:

 

Terminal

Terminal

Connect to

Description

 

 

 

Number

Name

 

 

 

 

 

 

 

 

1

AC In

One side of AC power supply (if AC

 

 

 

 

 

power used)

24 VAC

 

 

 

 

 

 

 

 

2

AC In

Other side of AC power supply (if

 

 

 

 

 

 

 

 

AC power used)

 

 

 

 

 

 

 

 

 

 

1

 

Negative side of DC power supply

Internally, the chassis ground of the

 

 

 

 

DC GND

(if DC power used)

 

 

 

 

Server is connected to this terminal.

 

 

 

 

 

 

 

 

 

 

 

2

DC power

Positive side of DC power supply (if

+12VDC to 30 VDC

 

 

 

 

supply

DC power used)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Documentation Number: ESR90xW-4905m

Chapter 2

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Vlinx ESR90xW Hardware

RS-485 Receiver Biasing

Vlinx ESR90xW wireless serial servers provide built-in receiver biasing on RS-485 ports (includes the 902W485 port, 902W Port 2 and 904W Ports 2 and 4). The Data(+) line is pulled up to 3.3V supply using a 4.7 kΩ resistor and the Data(-) line is pulled down to ground, also using a 4.7 kΩ resistor.

RS-422/485 Terminating

If a terminating resistor is deemed necessary, for RS-422 operation typically a 120 Ω resistor would be connected across the Receive Data(+) and Receive Data(-) lines. For RS-485 operation the resistor would be connected across the Data(+) and Data(-) lines.

For more information on Receiver Biasing and RS-422/485 Terminating access the

B&B Electronics RS-422/485 Application Note available at www.bb-elec.com)

Connections for Server Configuration

Vlinx ESR90xW Wireless Serial Servers can be configured via:

A wired connection to a RJ-45 Ethernet connector on the ESR90xW front panel.

The wireless network

The wired connection is recommended for configuration, especially when configuring wireless settings, to ensure communication is not lost while changing settings.

Figure 6. Wired Connection for Configuration

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Chapter 2

Documentation Number: ESR90xW-4905m

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

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

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

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

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B&B Electronics ESR904W, ESR901W232 Connections for Server Configuration, Configuration Port Connector, Antenna Connector

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.