MINI-LINK TN R3 ETSI
3.3.2.4 Power
This block interfaces the Power bus and provides secondary voltages for the
unit. All plug-in units have a standard power module providing electronic soft
start and short circuit protection, filter function, low voltage protection, DC/DC
converter and a pre-charge function.
NPU3 has no connector for external power. For AMM 2p B the power is
distributed to the backplane at the left hand side of the AMM.
3.3.2.5 Node P rocessor
The Node Processor is the central processor of the NE, responsible for the
traffic and control functions listed in Section 3.3.1 on page 20.
3.3.2.6 Line Interface
This block provides the E1 line interfaces for external connection.
3.3.2.7 Ethernet
This block provides a 10/100BASE-T connection to site LAN and 10/100BASE-T
traffic in Ethernet bridge applications. The Ethernet traffic is mapped on nxE1,
where n16, using one inverse multiplexer.
An IP telephone can be connected to the Ethernet interface, enabling service
personnel to make calls to other sites. This digital Engineering Order Wire
(EOW) solution utilizes VoIP in the IP DCN. For more information on EOW for
MINI-LINK, see MINI-LINK Engineering Order Wire Feature Description.
See Section 3.6 on page 31 for more information on Ethernet traffic.
3.3.2.8 O&M
This block provides the LCT connection to the NPU using a USB interface. The
equipment is accessed using a local IP address.
3.3.2.9 User I/O
This block handles the User Out ports on the NPU3 and the User In and User
Out ports on the NPU1 B, see Section 6.1.3 on page 108.
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/1555-CSH 109 32/1-V1 Uen B 2007-09-14
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