Chapter 3: Hardware Configuration

Power Connector

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

Table 3-1. Power connector.

Terminal

Connect to

Description

 

 

 

Negative side of DC power supply (if DC

power used).

GND

Also connect negative side of backup DC power supply (if used).

Internally, the chassis ground of the serial server is connected to this terminal.

AC in

One side of AC power supply (if AC power

used)

 

 

 

 

The other side of AC power supply (if AC

 

power used)

Either AC or DC power can be used to power serial servers. The power supply voltages can range from 9 VDC to 48 VDC or 8 VAC to 24 VAC.

AC/DC+ in

OR

 

 

Positive side of DC power supply (if DC

 

 

power used)

 

 

 

 

Backup DC+ in

Positive side of backup DC power supply

Backup power must be DC voltage and can be any voltage between 9 VDC and

48 VDC.

 

 

 

 

 

3.2 Serial Server/Port Operational Modes

Using the Serial Server Manager, Web Server, or Telnet, the Serial Server can be put into Console Mode, Default Mode, or Upgrade Mode. The serial ports can be configured for RS-232, RS-422, RS-485H (half-duplex), or RS-485F (full-duplex) operation. The server also can be put into Console Mode by placing the Run/Console switch in the Console position.

3.2.1 Default Mode

When Default Mode is selected and the server properties are Updated (Saved), all the configuration settings return to their default values.

NOTE: Refer to Chapter 6 for details on Serial Server Configuration settings. See Chapter 1 for Serial Server default parameters.

3.2.2 Console Mode

In Console Mode, the Configuration Menu can be accessed from a PC by connecting its RS-232 serial port to the 1-Port Industrial Serial Server serial port or 2- or 4-Port Industrial Serial Server Serial Port 1. Since the computer is a DTE device and the serial ports are configured as DTEs (with DB9 M connectors), a null-modem crossover cable must be used.

In Console Mode, the default serial port settings are: 9600 baud, 8 data bits, no parity, and 1 stop bit. From Windows, HyperTerminal with VT100 terminal emulation can be used for Console Mode configuration.

NOTE: Refer to Chapter 10 for details on Console Mode.

3.2.3 Upgrade Mode

In Upgrade Mode, firmware can be uploaded from a PC via its serial port to the 1-Port Industrial Serial Server serial port or the 2-port or 4-Port Industrial Serial Server Serial Port 1. Upgrading also can be done via the network connection, using the Serial Server Manager software and a virtual COM port.

NOTE: Refer to Chapter 9 for details on Upgrade Mode.

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Black Box LES402A, LES404A, LES401A manual Serial Server/Port Operational Modes, Default Mode, Console Mode, Upgrade Mode

LES402A, LES401A, LES404A, 1-, 2-, and 4-Port Industrial Ethernet Serial Servers specifications

The Black Box LES402A, LES404A, and LES401A are robust industrial Ethernet serial servers designed to facilitate seamless communication between serial devices and Ethernet networks. These devices come in various configurations, including 1-port, 2-port, and 4-port options, making them suitable for a wide range of applications.

One of the primary features of the Black Box LES series is their ability to convert asynchronous serial data into a TCP/IP format. This functionality allows legacy devices to be integrated into modern Ethernet networks, providing businesses with a cost-effective solution to modernizing their infrastructure without replacing existing equipment. The devices support various serial protocols, including RS-232, RS-422, and RS-485, ensuring compatibility with numerous devices.

Each server in this series is equipped with advanced features such as selectable baud rates, which range from 300 to 921,600 bps, catering to the needs of diverse serial peripherals. Additionally, the LES402A, LES404A, and LES401A include an easy-to-use web-based management interface that simplifies configuration and monitoring. Users can quickly set up parameters, manage connections, and perform diagnostics, all from a centralized interface.

Robustness and reliability are crucial for industrial applications, and the Black Box LES series does not disappoint. Built to withstand harsh environments, these devices feature a rugged metal housing that protects against dust, moisture, and other environmental factors. Additionally, they come with Ethernet port support for Auto-MDIX, simplifying cable connections by automatically detecting and adjusting the port configuration.

Security is another significant consideration. The Black Box LES servers include features such as SSL and SSH support that secure data transmission between devices, making them suitable for sensitive applications. Furthermore, the devices support SNMP for network management, allowing for remote monitoring and management.

In summary, the Black Box LES402A, LES404A, and LES401A series of Industrial Ethernet Serial Servers are designed to bridge the gap between legacy serial devices and modern Ethernet networks. With their robust construction, varied port options, and advanced features, these devices enhance connectivity and streamline operations in demanding industrial environments. Their flexible configuration and security protocols make them a reliable choice for organizations looking to integrate their legacy systems into contemporary networks.