Ericsson MINI-LINK TN R3 ETSI Technical Description page 27

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There are also some specific functions associated with each NPU type as
summarized below.
NPU1 B
NPU2
NPU3
3.3.2 Functional Blocks
This section describes the internal and external functions of the NPUs, based
on the block diagrams in Figure 25 on page 22, Figure 26 on page 22 and
Figure 27 on page 23.
4/1555-CSH 109 32/1-V1 Uen B 2007-09-14
System control and supervision
IP router for DCN handling
SNMP Master Agent
Ethernet interface for connection to a site LAN
Storage and administration of inventory and configuration data
USB interface for LCT connection
• 2x(4xE1) for traffic connections
• Three User Input ports
• Three User Output ports
• 1x(4xE1) for traffic connections
• Filters the external power and distributes the internal power
• The Ethernet interface can be used for Ethernet bridge
applications
• 1x(4xE1) for traffic connections
• Two User Output ports
Basic Node
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