Features

»Control remote serial equipment across your Ethernet network.

»Slim-line DIN rail box is IP30 rated for use in dirty environments.

»Support RS-232, RS-422, and RS-485 serial interfaces.

»Support multiple client sessions.

»4-screw power connector enables daisychaining of AC or DC power to multiple servers.

»Ideal for industrial equipment such as PLCs, drives, motor controls, and process analyzers.

LES402A

OVERVIEW

Whether serial devices are on the factory floor or in a remote location, you can now control them across your Ethernet network with BLACK BOX® Industrial Ethernet Serial Servers. Just connect the serial port of your device to the server, and then connect the server to your LAN and monitor equipment as if there were a direct serial connection. Industrial Ethernet Serial Servers work across any IP network—you can even access remote equipment via the Internet.

The servers support RS-232, RS-422 and RS-485 half- and full- duplex operation with software selectable interfaces.

The included software enables easy server management, configuration, and monitoring and supports up to eight individual client sessions. UDP mode enables you to multicast to and from multiple IP addresses.

The servers are housed in rugged metal cases, are IP30 rated, and are DIN rail mountable. They feature terminal block power connectors for industrial installations. Redundant, wide-range AC/DC power keeps applications up and running.

The servers feature autosensing 10-/100-Mbps Ethernet ports. Password security prevents unauthorized access.

Technically Speaking

Serial servers.

A serial server is a hardware device that enables you to connect serial devices across a network.

The primary advantage of serial servers is that they save you the cost of running separate RS-232 devices. By using a network, you can connect serial devices even over very long distances—as far as your network stretches. It’s even possible to connect serial devices across the Internet. A serial server connects the remote serial device to the network, and

then another serial server somewhere else on the network connects to the other serial device.

Serial servers act as virtual serial ports by providing the appropriate connectors for serial data and also by grouping serial data in both directions into Ethernet TCP/IP packets.

This conversion enables you to connect serial devices across Ethernet without the need for software changes.

Because serial servers send data across a network, security is a consideration. If your network is isolated, you can get

by with an inexpensive terminal server that has few or no security functions. But if you’re using a terminal server to make network connections across a network that’s also an Internet subnet, you should look for a terminal server that offers extensive security features.

T e c h S P e c s

Hardware Data Rate — LAN: 10/100 Mbps; Async Serial: 110 bps to 230 kbps

Management — VlinxManager, Web server, serial console, TelnetOperation — Half- and full-duplex

Protocols — RS-232; TCP, IP, ARP, DHCP, Telnet, HTTP, UDP, ICMP RS-232 Leads Supported — TX, RX, RTS, CTS, DTR, DSR, DCD, GND RS-422 Leads Supported — TX+, TX-, RX+, RX-, RTS+, RTS-, CTS+, CTS-,

GND

RS-485H Leads Supported — DATA+, DATA-, GND 

RS-485F Leads Supported — TX+, TX-, RX+, RX-, GND

Speed — Network: 10BASE-T, 100BASE-TX: 10/100 Mbps, autosensing; Serial: 110 bps to 230.4 kbps

Temperature Rating — Operating: 14 to 176°F (-10 to +80°C); Storage: -4 to +185°F (-20 to +85°C)

CE Approval — Yes

Interface — RS-232, RS-422, RS-485

Connectors — Serial: (1), (2), or (4) DB9 M, DTE configuration; LES401A also has (1) terminal block;

Ethernet: (1) RJ-45;

Power: (1) 4-screw terminal block

Indicators — LEDs: Per Unit: (1) Power, (1) Link, (1) Ready; Per Port: (1) TX, (1) RX

Power — Works with an 8 VAC–24 VAC or 9 VDC–48 VDC power supply (not included);

Input Connector Type: Terminal Block: GND, AC in, AC/DC+ in, Backup DC+ in;

Power Consumption: LES401A: 320 mA @ 12 VDC; LES402A: 340 mA @ 12 VDC;

LES404A: 360 mA @ 12 VDC

Size — LES401A–LES402A: 1.75"H x 6.1"W x 4.1"D (4.5 x 15.5 x 10.5 cm);

LES404A: 1.75"H x 7.1"W x 4.1"D (4.56 x 18 x 10.5 cm)  Weight — LES401A–LES402A: 3 lb. (1.4 kg);

LES404A: 3.2 lb. (1.5 kg)

Item

Code

Industrial Ethernet Serial Servers

LES401A

1-Port

2-Port

LES402A

4-Port

LES404A

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05/12/2010

#26589

724-746-5500

blackbox.com

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Black Box LES401A, LES402A, LES404A, 26589 manual Technically Speaking, Overview, C h S P e c s, Features, Gnd

26589, LES402A, LES401A, LES404A 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.