Cisco Headend Digital Broadband Delivery System Manuale Di Manutenzione
Appendix A
FCC Test Requirements
148
4004455 Rev G
11.61 Tests of EAS Procedures
Cable System Size
EAS Requirements
Small Cable System Requirements Under
Option B
Option B
Cable systems with fewer
than 5,000 subscribers
per headend must comply
with either option A or
option B
Option A
Provide National Level EAS
Message on all programmed
channels, including the
required testing.
Option B
Install EAS equipment that is
capable of providing:
1 The Audio Alert
1 The Audio Alert
Messages on all
programmed channels.
2 Video Interrupt on all
channels.
3 Audio and Video EAS
Messages on one
programmed channel.
Video
Interruptions
Must include a statement
telling listeners on which
channel the EAS video and
audio message is displayed.
Must flash a blank or black
Must flash a blank or black
television screen
simultaneously with, and of
the same duration, as the
EAS message.
Cable systems with 5,000
to 10,000 subscribers per
headend
Install EAS equipment that is
capable of providing Audio
and Video EAS Messages on
all programmed channels.
Cable systems with
10,000 or more
subscribers per headend
Install EAS equipment that is
capable of providing Audio
and Video EAS Messages on
all programmed channels.
EAS Designation
EAS instructions vary for each particular designation. Cable systems are designated
as either participating or non-participating sources. Most cable systems have elected
to participate in EAS and are designated as Participating National (PN) sources.
However, cable systems that elect not to participate in the national level EAS must
hold an FCC authorization letter. Nonparticipating systems are designated as Non-
Participating National (NN) sources.
as either participating or non-participating sources. Most cable systems have elected
to participate in EAS and are designated as Participating National (PN) sources.
However, cable systems that elect not to participate in the national level EAS must
hold an FCC authorization letter. Nonparticipating systems are designated as Non-
Participating National (NN) sources.
The EAS transmissions of national, state, and local emergencies by PN sources are
intended for direct public reception. (47 C.F.R. Section 11.18(e)). All systems,
including NN sources, are required to install and test EAS equipment. Upon
activation of the national level EAS, NN sources are required to broadcast the EAS
codes, Attention Signal, and the sign-off announcement in this handbook (Cable
Emergency Alert System Procedures - 2007, an FCC publication), and then stop
operating until the end of message code is received. (47 C.F.R. Section 11.18(f))
intended for direct public reception. (47 C.F.R. Section 11.18(e)). All systems,
including NN sources, are required to install and test EAS equipment. Upon
activation of the national level EAS, NN sources are required to broadcast the EAS
codes, Attention Signal, and the sign-off announcement in this handbook (Cable
Emergency Alert System Procedures - 2007, an FCC publication), and then stop
operating until the end of message code is received. (47 C.F.R. Section 11.18(f))