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IEC07000183-1-en.vsdx
IEC07000183 V1 EN-US
Figure 61: Multiterminal line with five line ends (master-slave)
5.3
Fibre-optic communication interfaces with C37.94
protocol
GUID-93D69EE3-2ECA-4229-83D9-23182B4517AC v1
GUID-5A4E9F96-C38E-486D-A77B-F292FD31B1F9 v1
The line differential protection IED can be configured with fibre-optic interfaces according to
C37.94 protocol.
Three different types of LDCM modules are available:
•
Short range (SR): multi-mode fibre-optic 50/125 μm or 62.5/125 μm with 2-3 km to
telecommunication equipment (820 nm). Can also be used for back-to-back applications.
•
Medium-range (MR): single-mode fibre-optic 9/125 μm for back-to-back applications with
< 80 km distances (1310 nm).
•
.Long range (LR): single-mode fibre-optic 9/125 μm for back-to-back applications with <
110 km distances (1550 nm)
ST
ST
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IEC07000087-3-en.vsdx
1
2
IEC07000087 V3 EN-US
Figure 62: SR-LDCM layout with two PCI connectors and one I/O ST type connector
1MRK 505 382-UEN E
Section 5
Communication set-up
Communication set-up, 670/650 series
63
Application Guide
© Copyright 2017 ABB. All rights reserved
Summary of Contents for Relion 670 series
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