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3.7
NETWORKING AND TRUNKING
Networking is an adopted term used to describe several MAXPRO-Net systems working
together sharing resources such as cameras, monitors, alarms, PTZ control, other
equipment control and general system status information. These networked systems
(called nodes) form a seamless single video environment to the operators controlling the
system. Cameras at one node are available for selection to monitors at the other nodes.
Alarms conditions detected by one node are broadcast to, and acted upon by the other
network nodes. Control of PTZ cameras, VCRs, lighting, doors and boom gates can be
achieved from any network system node. The networked video environment
automatically manages all of this.
Network Node can be connected to the MAXPRO-Net server in two ways:
1. Serial Connection: Where a single bi-directional RS-232 communications data
connection (between the nodes) is required to convey all selection, control and
status information.
2. Ethernet Port: Where two network nodes are connected through LAN. Ethernet
details should be configured in one among two network nodes using the Ethernet
Tab of SetMax Configurator.
Video trunk lines are used to automatically route camera (and VCR) video signals
between the network system nodes. MAXPRO-Net Supports Networking over LAN.
Trunk Lines
Video trunk lines are a single video circuit linked from the output channel (in one system
node) to a video input on the matrix of the other system node. It is used to dynamically
carry cameras (VCR and other devices) video signals. The network system node
requiring a camera would instruct the other node to place that cameras video signal onto
an available trunk line. The trunk line would then be switched to the monitor, displaying
the selected network camera. This is automatically managed.
The trunk lines are shared based on individual operator priority to minimize congestion.
Several trunk lines would generally be required between network nodes to facilitate the
maximum number of concurrent camera selection required. Generally this is a smaller
number than the total number of monitors using them. Trunk lines only need to be
implemented in the direction required.
The following schematic diagram shows how two small video systems (nodes #2, #3)
can be configured to provide camera (and VCR) signals and control to the main video
system (node #1) forming a three node video network.
Rev. B
3-16
HMXMC001013
31-Mar-06
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