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3

Ethernet Adapter

SPA-ZC 402

Features 

• Enables IEC 61850 connectivity for IEDs 

with a fibre optic SPA bus.

• Auxiliary power supply

• Disturbance recorder file upload via 

IEC 61850

• Easy-to-use configuration tool for the 

IEC 61850 data mapping

• Communication over SPA/TCP

• Communication over Modbus/TCP

Application

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Fig. 1

Conceptual picture of a typical system setup

Introduction

Using the SPA-ZC 402, an Intelligent Elec-

tronic Device (IED) with a fibre optic SPA 
bus can be connected to the Ethernet based 

IEC 61850-8-1 station bus.

IEC 61850 is the new  standard for substation 

communication. Additionally to being a com-

munication standard, it also supports general 
substation automation functions as well as the 

engineering process.

SPA-ZC 402 also enables ethernet access to 

an IED using the SPA over TCP/IP and Mod-

bus over TCP/IP.

The SPA-ZC 402 acts as a communication 

adapter between the SPA bus and the IEC 
61850-8-1 station bus. The SPA-ZC 402 

maps the SPA protocol interface to the IEC 
61850-8-1 standard. This enables connecting 

products with optical SPA interface to IEC 

61850 based networks in both new and retro-
fit installations. 

More information on how to physically con-
nect the device can be found in the chapter 5 

of the Installation and Commissioning man-

ual. SPA-ZC 402 programming is described 
in the Installation and commissioning man-

ual, chapter 6, Engineering.

As a prerequisite, you should understand the 

communication properties of the IED that is 

to be connected to Ethernet adapter. This 
information is available in the manual for the 

protection IED in question.

REF 542plus

COM600

1MRS755479

Issued: 08.12.2004
Status: Updated
Version: E/20.05.2009
Data subject to change without notice

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