System information

FCD 901 48
Issue R2A, 07.2009
XMP1 Release 5.5 System Description
Design of the EoSDH Expansion
Page 4-2 Proprietary Information Aastra
4.2 Design of the EoSDH Expansion
The Ethernet expansion is implemented in the XMP1 system by means of
the following modules:
• EoSCU (Ethernet over SDH Core Unit)
• CU-E (Central Unit Expansion)
The Ethernet expansion of the XMP1 system is implemented by the EoSCU
module. This module occupies two card slots in the XMP1 subrack. The
CU-E sub-module is used as control module. It is mounted on the Central
Unit (62.7040.xxx.xx) of the node.
EoSCU (Ethernet over SDH Core Unit)
The EoSCU (Ethernet over SDH Core Unit) module is composed of the
SCU-BETH and SCU-EETH boards.
SFP modules (Small Form Facture Pluggable Modules) are used for the
optical STM-1/4 interfaces and the electrical STM-1 interface. These SFP
modules carry out the opto-electrical conversion of the interface signals.
The optical fibers are connected via LC plug connectors.
At the electrical STM-1 interface, the connection is set up using coaxial
(straight) 1.0/2.3 plug connectors.
SCU-EETH
Please refer to the SDH expansion, Section 4.2, Design of the EoSDH
Expansion .
Ethernet SDH Core Unit EoSCU
4 x Ethernet
SDH IF:
opt./electr.
6 x 2 Mbit/s
Clock
SFP