TelVue AdCaster - Manual (Page 4)

Chapter 1
Getting Started
1.1 What is the AdCaster?
The AdCaster is a SCTE30 compliant ad server that can be connected to a
splicer to serve long and short form advertising. The AdCaster connects to the
splicer over TCP port 5168 (by default). The splicer receives a main feed which
contains SCTE35 embedded markers. These markers tell the splicer when it
is okay to replace the main feed content (usually ad spots) with local content
(figure 1.1). The splicer then communicates with the AdCaster via the TCP
connection and requests content to play over the main feed. The AdCaster then
delivers the requested content. A successful transaction between the splicer and
the AdCaster will result in a seamless replacement of the main ad with the local
ad (figure 1.2).
Figure 1.1: The AdCaster communicates with the splicer waiting for a CUE
message.
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