Ethernet Bridge EtherBridge-R

Features
Description
Specifications

General
Indicators (front panel)
Controls
Lan Connection
Data Port
Physical/Electrical

Application

Download the UserManual

How To Order

FEATURES

• No configuration, easy setup mode
• Learning, ethernet bridge
• Ethernet to serial bridging
• Protocol independent
• No routing configuration required.… ever
• 10/100BaseT Ethernet interface
• Available with optional 2nd independent WAN port
• RS-232/422/485 interface at 230.4 Kbps
• RS-422/485 Optical isolated version available
• Ideal companion to spread spectrum wireless modems
• Advanced Management allows SNMP, web browser, telnet, or terminal management

DESCRIPTION

Ethernet bridging is also available on the second WAN port, which is ideal for higher density host sites or daisy chaining bridges, commonly used for SCADA applications.

The EtherSeries Bridge is 100% protocol independent. It will bridge TCP/IP, AppleTalk, DecNet, NetBEUI, or any protocol that can be transported over ethernet. This makes the asynchronous Ethernet Bridge easy to set up. No configuration is necessary.

The asynchronous EtherSeries Bridge transfers data over the bridge only if it is destined for an ethernet address (MAC layer address) on the other side of the bridge. Traffic is filtered, much the same way an ethernet switch filters ethernet traffic, to maximize available bandwidth. Unless advanced management is required, no IP address is involved and there is no set-up other than matching serial port speeds. Advanced management allows SNMP, web browser, and telnet based management of the bridge.

The Ethernet bridge learns the addresses quickly. This allows, for example, a technician to be working at one end of the bridge with a laptop computer, then move the laptop to the other side, with no need to reset the bridge. The bridge learns within a few packet times that the computer and its ethernet address moved to the other side of the bridge.

For low traffic LAN bridge locations, this can be deployed as a dial-up bridge. As an ethernet client bridge, the LAN bridge would dial into a host ethernet bridge location upon command. This is the ideal way for bridging ethernet at remote sites that don't justify full time connections.

The EtherSeries bridge is much easier to use than a router. There is no IP address that must be set up in the bridge. There is no subnet mask to setup. There is no destination IP address to setup. You just plug it in and use the network. Popular in the early 90's, bridging technology was often abandoned as communication equipment hardware grew to offer routing capability. However, using a router for small networks adds tremendous complexity, overhead, and requires knowledge of protocols and IP subnetting. In addition, there are many non-routable protocols in use. The availability of an inexpensive ethernet LAN bridge now brings back those economies and simplicity for LAN connections that typically use fewer than several hundred computers.

SPECIFICATIONS

General

• Management Methods
  • Any web browser
  • Telnet Menu Interface
  • Direct Connection Menu Interface
• SNMP (get and trap) functionality included
• RS-232 serial port, DTE interface
• DE-9 (PC 9-pin) RS-232 male serial DTE (terminal interface) port
• Configurable as RS-422/485 (4-wire, RS-485 two-wire available with multi-drop firmware)
• Serial speeds from 300 bps to 230,000 bps
• RJ45 10 BaseT and 100BaseT ethernet, autoselected
• Management via telnet command line interface, the serial port, or any web browser
• Available in point-to-point (standard) and multi-point versions (free option)

Indicators

Link and Activity LEDs

Controls

WAN Port

Interface: RS-232, V.24, RS-422/485(4 wire, RS-485 2 wire available with multi-drop firmware) with speeds up to 230,000 bps asynchronous Connector: DE-9P RS-232 (commonly known as a DB-9 PC connector)

LAN Connection

• 1 LB
• -40 to +70 C, <95% non-condensing RH
• 5mm x 78mm x 28 mm (W x H x D) 2.5 in x 3.25 in x 1.25 in (approximate)
• 5-30 volt DC (external power supplies available for 110 VAC, 220 VAC, 48VDC, 125VDC and others)
• 350ma @ 5 VDC, 200ma @ 12 VDC

Application

Point-to-Point

Point-to-Multipoint

• Bridging ethernet segments
• Bridging LANs with wireless connections
• Connecting SCADA host computers to RTUs
• Bridging LANs using low speed connections

Downloads

How to Order

Data Comm for Business Inc. 2949 County Road 1000 E Dewey, Il 61840	Voice: 217-897-6600 Toll Free: 800-4-DCB-NET Toll Free: 800-432-2638	Email: Contact Page Web: www.dcbnet.com Fax: 217-897-8023
All DCB web pages copyright ©1995- Data Comm for Business, All rights reserved. EtherPath®, EtherSeries®, EtherPoll®, EtherBridge® and EtherModem® are Registered Trademarks of Data Comm for Business, Inc.