Westermo DDW-142, Руководство пользователя

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3. Product Description
3.1. Product Description
The Wolverine DDW-142/242-12VDC-BP with bypass relay allows effective Ethernet
networks to be created over long distances up to 15 km (9.3 mi) at data rates up to 15.3
Mbit/s on a single twisted pair cable. By using two pairs “bonded” this rate can be doubled
up to 30.6 Mbit/s. The integral switch allows two Ethernet devices to be attached and an
RS-232 port allows for a legacy piece of equipment to be incorporated into the IP network.
The operating system (WeOS) in DDW-142/242-12VDC-BP can deliver unique
functionality for this class of product. It is developed for industrial networking solutions and
contains amazing serial connectivity capability – from being able to simulate an old AT
modem, convert Modbus RTU to TCP or encapsulate serial data into an IP packet.
DDW-142/242-12VDC-BP is incredibly flexible and easy to use. A basic point-to-point or
multidrop network can be created without the need for any kind of configuration.
Resiliency in multidrop networks is created by the inbuilt bypass relay that will shorten the
SHDSL interfaces in case of power loss of the product.
If a product is bypassed, the line will be re-negotiated between the products connected to
both sides of the bypassed product.
Power
failure
Unit bypassed
Figure 3. Bypassed product
DDW-142/242-12VDC-BP 9