Application Example With Otn (Open Transport Network) - Siemens DMS8000 Applications And Planning Manual

5.2.3

Application example with OTN (Open Transport Network)

Siemens Building Technologies
Fire & Security Products
OTN (Open Transport Network) from Siemens Atea is an optical fibre based transmis-
sion system for voice, data, LAN, and video information. This system allows intercon-
nection of electronic equipment found in complex, basically industrial installations
through one single network, irrespective of the distances to be bridged.
Today, OTN is probably the most powerful multiplexer for large, private environments
with mixed communication needs such as railways, metros, light rails, mines, airports,
pipelines, and so on.
OTN is exactly what its name implies:
–
OPEN
It can handle nearly all existing physical interface standards, but also very spe-
cific communication protocols in special environments via its interface cards.
–
TRANSPORT
It carries different types of information (such as voice, data, LAN, and video)
completely transparently throughout the network, and does so with high availabil-
ity.
–
NETWORK
It is based on fibre optic technology in a future-proof network infrastructure,
spanning any distance.
An OTN network is built up with nodes that are interconnected by a dual fibre optic
ring. A network consists of up to 250 nodes.
Each node is mounted in a 19" rack and is equipped with network cards, interface
cards, and one or more power supply modules. The network cards provide communi-
cation between the optical rings and the interface cards.
On both rings, consecutive TDM (Time Division Multiplexing) frames circulate in oppo-
site directions. These frames provide communication between the nodes.
Fig. 38 OTN network node
The OTN system offers a capacity of 150 Mbps (OTN-150), 600 Mbps (OTN-600) and
2.5 Gbps (OTN-2500). It can be deployed in networks covering distances from a few
hundred meters up to 2000 km. The distance between two consecutive OTN nodes in
the network depends on the fibre characteristics and the type of optical transceivers
used (from 2 km with multimode fibre up to 95 km with G.652/G.653 fibre).
DMS8000_Application_Specification_&_Planning_MP4.10_A6V10063710_a_en
NK8000 Network planning
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