B&B Electronics ESP902E, ESP901E manual Serial Server DB-9 Pin-outs in RS-232 Mode

Page 41

RS-232 Connections

APPENDIX A: RS-232 CONNECTIONS

Serial Server DB-9 Pin-outs in RS-232 Mode

 

 

 

 

RS-232

DTE

RS-232

DB-9M

Signal Name

 

 

Pin

Carrier Detect

In

DCD

1

Receive Data

In

RXD

2

Transmit Data

Out

TXD

3

Data Terminal Ready

Out

DTR

4

Signal Ground

---

GND

5

Data Set Ready

In

DSR

6

Request To Send

Out

RTS

7

Clear To Send

In

CTS

8

Ring Indicator

In

RI

9

Figure 60. RS-232 Connections in a DB-9 Connector

Manual Documentation Number: ESP901-902-3704

Appendix A

71

RS-232 Connections

RS-232 Straight-through Cable Connections

In the RS-232 mode, the Serial Server’s ports are configured as DTEs like a computer. If the device connected to the Serial Server is configured as a DCE use a straight through cable wired as shown below:

RS-232 Signal Names

 

DB-9

Connections

DB-9

Signal

 

 

 

Pin#

 

Pin#

 

Carrier Detect

 

CD

1

 

1

CD

Receive Data

 

RD

2

 

2

RD

Transmit Data

 

TD

3

 

3

TD

Data Terminal Ready

 

DTR

4

 

4

DTR

Signal Ground/Common

 

GND

5

 

5

GND

Data Set Ready

 

DSR

6

 

6

DSR

Request to Send

 

RTS

7

 

7

RTS

Clear to Send

 

CTS

8

 

8

CTS

Ring Indicator

 

RI

9

 

9

RI

Figure 61. Straight-through DB-9 to DB-9 RS-232 Serial Cable

RS-232 Crossover (null modem) Cable Connections

When connecting to a PC or another DTE device, use a crossover cable (also called a null modem cable).

RS-232 Signal Names

 

DB-9

Connections DB-9 Signal

 

 

Pin#

Pin#

 

Carrier Detect

CD

1

1

CD

Receive Data

RD

2

2

RD

Transmit Data

TD

3

3

TD

Data Terminal Ready

DTR

4

4

DTR

Signal Ground/Common

GND

5

5

GND

Data Set Ready

DSR

6

6

DSR

Request to Send

RTS

7

7

RTS

Clear to Send

CTS

8

8

CTS

Ring Indicator

RI

9

9

RI

Figure 62.Crossover DB-9 to DB-9 RS-232 Serial Cable

72

Appendix A

Manual Documentation Number: ESP901-902-3704

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 Pk – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445

www.bb-europe.com

B&B Electronics Ltd – Westlink Commercial Pk – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445

www.bb-europe.com

Image 41
Contents Multi-Interface Ethernet Serial Servers International Headquarters Manual Documentation Number ESP901-902-3704m Table of Contents Using Console Mode Introduction FeaturesVirtual COM Mode Direct IP ModePaired Mode Communication ModesSoftware Installation Hardware SetupSerial Server Configuration Serial Server Quick Start GuideCheck Communications Install Virtual COM Ports on PCMaking the Hardware Connections Package ChecklistESP901/ESP902 Connections, Indicators and Reset Switch Serial Ports DIP SwitchesSerial Server/Port Operational Modes Upgrade Mode Console ModeRS-232 Mode RS-422 ModeDTE Serial Server Serial Port Connector Pin-outsSoftware Installation Installing the Vlinx ESP SoftwareAutomatic Installation Manual InstallationOpening the ESP Manager Updating an Existing InstallationSoftware Setup Using ESP ManagerHardware Setup Menus Software OverviewServer Icons Pane Search for ServersSerial Server / Virtual COM Lists Status BarSearch Vlinx ESP Dialogue Box Configure Server PropertiesRestarting Dialogue Box Password Configuring the Serial Server PropertiesDescription of the Server Properties Server NameNetmask IP AddressGateway MAC AddressTCP Alive Timeout Serial TimeoutConnection Mode Flow ControlUpdate/Save Serial Port ModePort Status TCP/UDP PortFollowing dialogue box will appear Web Server Virtual COM Port Installation Installing Virtual COM PortsWindows Logo Testing Window Matching the Serial Server and Virtual COM Port SettingsVlinx ESP COM3 Properties Window Removing the Virtual COM port with ESP Manager Removing the Virtual COM Port using Device ManagerRemoving Virtual COM Ports Control Panel Window Downloading the Firmware Upgrading the Serial Server FirmwareUpgrading Via ESP Manager Preparing the SoftwareNavigating the Configuration Menus Using Console ModeConsole Mode Setup Saving and Restarting the Configuration Using a PasswordSetting Server Properties Using the WEB ServerWeb Server Operation Navigating the Configuration Menu Using TelnetConfiguration Using Telnet Telnet Configuration Screens ESP901 and ESP902 Technical DataDhcp RS-232 Crossover null modem Cable Connections Serial Server DB-9 Pin-outs in RS-232 ModeRS-232 Straight-through Cable Connections RS-232 DTE Loopback Connections RS-232 Crossover DB-9 to DB-25 Conversion ConnectionsAppendix B RS-422 Connections Serial Server DB-9 Pin-outs in RS-422 ModeLoopback Connections for RS-422 Appendix C RS-485 Connections Serial Server DB-9 Pin-out in RS-485 ModeCrossover Ethernet Cable RJ-45 Pin-out Standard Ethernet Cable RJ-45 Pin-outElectronics September

ESP902E, ESP902, ESP901E specifications

B&B Electronics offers a series of industrial-grade Ethernet serial servers known as the ESP901E, ESP902, and ESP902E. These devices are specifically designed to connect serial devices to an Ethernet network seamlessly, enabling effective communication and data transfer across various applications.

The ESP901E is engineered for single serial port applications, providing an easy and effective way to connect a serial device to a network. It supports various serial communication protocols, including RS-232, RS-422, and RS-485, making it versatile for a range of devices. One of its standout features is the ability to support 10/100 Mbps Ethernet connectivity, ensuring a reliable and high-speed network connection. Additionally, the ESP901E supports various network protocols, including TCP/IP and UDP, allowing users to integrate the device easily into their existing network infrastructure.

Moving to the ESP902, this model provides dual serial port capabilities, making it ideal for applications requiring the connection of multiple devices. Like the ESP901E, it supports common serial interfaces and offers the same 10/100 Mbps Ethernet connectivity. This flexibility enables it to cater to more complex systems where multiple serial devices need to be integrated into a single network environment. Furthermore, the ESP902 is equipped with features such as automatic baud rate detection, making configuration straightforward and reducing installation time.

The ESP902E enhances the capabilities of the ESP902 with additional features such as enhanced security protocols. It includes support for SSL and SSH, ensuring secure data transmission across the network. This added security layer is crucial for applications that handle sensitive information or require secure communication channels. The ESP902E maintains the user-friendly nature of its predecessors while integrating more advanced features suitable for modern industrial applications.

All three models boast rugged designs suitable for harsh environments, making them perfect for industrial applications without compromising performance. With an extensive operating temperature range and robust housing, these devices can withstand the rigors of factory floors and outdoor installations.

Overall, the ESP901E, ESP902, and ESP902E from B&B Electronics collectively serve to bridge the gap between serial communications and Ethernet networks, supporting various industrial applications while ensuring seamless integration, versatility, and security. Whether for simple single-port connections or more complex multi-port setups, these devices are designed to meet diverse connectivity needs with efficiency and reliability.