Overview - Siemens SWT 3000 Equipment Manual

Digital Line Equipment

9.1 Overview

9.1 Overview
The digital line interfaces LID-1 and LID-2 of the SWT 3000 system are implemented on the DLE module. These
interfaces enable the transmission of the protection commands via a digital network (SDH/PDH). The data for
the remote maintenance and the service channel interfaces and the system-internal control information are
transmitted additionally.
The DLE module is designed as a self-contained PC board connected electrically to the PU4 via a ribbon cable
and mechanically via spacer sleeves. All external interfaces are routed via the PU4 module.
The following hardware interfaces are available for each LID:
•
X.21 (64 Kbps)
•
G703.1 (64 Kbps)
•
G703.6 (2 Mbps)
LID-1 can be operated alone or jointly with the LID-2 (multipath transmission) on the DLE. With multipath
transmission, different line interfaces can be used for LID-1 and LID-2.
NOTE
i
i
Up to 2 line interfaces at the same time are possible. Only one of them can be analog.
LIA (CLE) + LID-1
LIA (CLE) + LID-2
LIA (CLE) + FOM-2
FOM-1 + FOM-2
FOM-1 + LID-2
LID-1 + LID-2
332 Smart Communication, SWT 3000 Teleprotection, Equipment Manual
C53000-G6040-C605-1, Edition 03.2020