MINI-LINK TN R3 ETSI
6.7 Data Communication Network (DCN)
This section covers the DCN functions provided by MINI-LINK TN R3.
The MINI-LINK DC N Guideline ETSI gives recommendations on DCN
implementation, covering the different MINI-LINK product families.
6.7.1 IP Services
The following standard external IP network services are supported:
• All clocks, used for example for time stamping alarms and events, can be
synchronized with a Network Time Protocol (NTP) server.
• File Transfer Protocol (FTP) is used as a file transfer mechanism for
software upgrade, and for backup and restore of system configuration.
• Domain Name System (DNS) enables the use of host names.
• Dynamic Host Configuration Protocol (DHCP) is used to allocate IP
addresses in the DCN. The NE has a DHCP relay agent for serving other
equipment on the site LAN.
NTP
FTP
DCN
DNS
DHCP
MINI-LINK TN
LCT
Site LAN
7853
07/NPU
06
05
04
03
02
08/FAU2
01/PFU3
00/PFU3
LTU 155e
MMU2 B 4-34
SMU2
LTU 155e/o
LTU 16x2
PFU3
PFU3
FAU2
NPU1 B
Figure 88 IP services
6.7.2 DCN Interfaces
MINI-LINK TN R3 provides an IP based DCN for transport of its O&M data.
Each NE has an IP router for handling of the DCN traffic. A number of different
alternatives to connect and transport DCN traffic are supported. This diversity of
DCN interfaces provides the operator with a variety of options when deploying
a DCN. Figure 89 on page 115 illustrates the different options, including ways
of connecting to the equipment for DCN configuration.
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