FLIR PT-602CZ Installation Manual page 37

2 Basic Operation and Configuration
The parameters in the Video Settings section will have a significant impact on the quality and
bandwidth requirements of the video stream. In general it is recommended that the default values are
used initially, and then individual parameters can be modified and tested incrementally to determine if
the bandwidth and quality requirements are met.
Caution!
Adjustments to these settings should only be made by someone trained with thermal cameras
and a thorough understanding of how the various settings affect the image.
Haphazard changes can lead to image problems including a complete loss of video.
The default RTP Settings for connecting to an IP video stream
from the PT-602CZ are shown in the illustration. The RTP Port
and the Stream Name are used when establishing a session
from a client.
Given the camera IP address of 192.168.250.116, the complete
connection string for each of the video stream is as follows:
VIDEO 0 - rtsp://192.168.250.116:554/ch0
VIDEO 1 - rtsp://192.168.250.116:554/ch1
VIDEO 2 - rtsp://192.168.250.116:554/ch2
VIDEO 3 - rtsp://192.168.250.116:554/ch3
In some networks, the RTP/RTSP traffic is carried (tunneled)
over Hypertext Transfer Protocol (HTTP) as that may allow the
traffic to cross network boundaries and firewalls. While this
method involves more overhead due to encapsulation, it may be
necessary for clients to access the video streams when HTTP
proxies are used.
By default, the video streams from the camera are sent using
unicast packets rather than multicast. This means a given
packet of IP video will be sent separately to each client that has
that video stream open. Therefore each additional client will
cause the bandwidth to increase and cause more overhead on
the system in comparison to multicast.
With Multicast enabled, new fields are shown, Destination
Network and Destination Port, as well as TTL (time-to-live). If
more than one camera is providing multicast streams on the
network, be sure to configure each stream with a unique
multicast Destination Network IP address and Destination Port
combination.
The time-to-live field controls the ability of IP packets to
traverse network or router boundaries. A value of 1 restricts the
stream to the same subnet. Values greater than 1 allow ever
increasing access between networks.
With Multicast enabled, video packets are shared by streaming clients, so additional clients do not
cause bandwidth to increase as dramatically. If the video streams are used by more than one client/
location, it may be wise to use multicast for more efficient bandwidth usage.
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