Xsight Systems FODE6MWR User Manual
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Chapter 4 Data Communication Network (LAN) Requirements
4.1 Communication Network Overview
The SDUs connect to the central computer system via a TCP/IP LAN connection based on standard technologies
such as copper or fiber. Xsight recommends using self healing rings (a daisy chain is also acceptable, although less
reliable). The advantage of a self healing ring is that while in normal use, traffic is dispatched in the direction of
the shortest path towards the server, in the event of the loss of a link, or of an entire station, the two nearest
surviving stations "loop back" their ends of the ring. In this way, traffic can still travel to all surviving parts of the
ring, even if it has to travel "the long way round".
Alternative options include splitting the power and network into two rings each with independent power sources.
The SDUs are alternately connected to each of the two power sources so that if one power source completely
fails, the runway will continue being monitored by the SDUs that are powered by the working power source (with
a distance of 120/100 meters between SDUs instead of 60/50 meters). Another possibility is to create two
separate rings, one on each side of the runway, so that no cable duct crossing the runway is necessary (See Figure
7 below).
11 Haavoda St., Bellers House,
Rosh-Haayin, Israel 48017
Tel: +972-3-9102562 Fax: +972-3-9030590
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One Post Office Square, 30th Floor,
Boston, Massachusetts 02109
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Figure 7: Communication network – A ring on each side of the runway
11 Haavoda St., Bellers House,
Rosh-Haayin, Israel 48017
Tel: +972-3-9102562 Fax: +972-3-9030590
www.xsightsys.com
One Post Office Square, 30th Floor,
Boston, Massachusetts 02109
Tel.781-330-8466 US-sales@xsightsys.com
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Figure 8: Communication network - interlaced topology
4.2 Switch and Cables
The communication switch is responsible for the following processes:
Converting between SM (Single Mode) and MM (Multi Mode).
Rebuilding a spanning tree of the network when an SDU in the chain is breaking the chain. When
the SDU is communicating again, for example after a maintenance action, the switch will re-build
the spanning tree.
The communication cable used to connect the SDUs on the runway to the communication switch is generally fiber
optic due to the long distance. Depending on the distance, either Single-Mode (SM) Fiber or Multi-Mode (MM)
fiber will be used. Between the SDUs, MM is normally used, while the SDU connector is Huber Suhner ODC4
outdoor connector.
www.xsightsys.com
11 Haavoda St., Bellers House,
Rosh-Haayin, Israel 48017
Tel: +972-3-9102562 Fax: +972-3-9030590
One Post Office Square, 30th Floor,
Boston, Massachusetts 02109
Tel.781-330-8466 US-sales@xsightsys.com
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4.3 Connection from the Field to the ACC Server
A field patch panel is used at the point where both runway loops meet to connect the field with the ACC. The field
patch panel collects the data from the runway units and transfers it to the ACC. It includes active equipment such
as switches and transmission equipment, and passive equipment such as splice boxes. Street cabinets are used for
hosting the field networking equipment and patch panels.
Figure 9: Field patch panel
11 Haavoda St., Bellers House,
Rosh-Haayin, Israel 48017
Tel: +972-3-9102562 Fax: +972-3-9030590
www.xsightsys.com
One Post Office Square, 30th Floor,
Boston, Massachusetts 02109
Tel.781-330-8466 US-sales@xsightsys.com
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Chapter 5 Upper Unit Components
The SDU upper unit combines a day/night Vision sensor with a FMCW W-band Radar sensor. The Radar sensor
provides complementary performance even when the Vision sensor has limitations during low visibility
conditions.
The SDU upper unit includes the following components:
Millimetric Wave Radar (MMWR) Head
Video Camera
NIR Illuminator
Laser Beam Line Pointer
Door and Windshield Wiper Control Unit
11 Haavoda St., Bellers House,
Rosh-Haayin, Israel 48017
Tel: +972-3-9102562 Fax: +972-3-9030590
www.xsightsys.com
One Post Office Square, 30th Floor,
Boston, Massachusetts 02109
Tel.781-330-8466 US-sales@xsightsys.com
Xsight
Systems
Xsight Proprietary Information / Secret Commercial Information
11 Haavoda St., Bellers House,
Rosh-Haayin, Israel 48017
Tel: +972-3-9102562 Fax: +972-3-9030590
Figure 10: SDU upper unit front view
www.xsightsys.com
One Post Office Square, 30th Floor,
Boston, Massachusetts 02109
Tel.781-330-8466 US-sales@xsightsys.com
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