Controlling alarm output
You can control Alarm output.
To use this function, you need to make Alarm output
active in the Trigger menu of the Administrator menu
Click Alarm output1 or Alarm output2 on the
The alarm output is switched by clicking.
The alarm output mode can be selected from
Toggle or Timer of Alarm output 1, 2 (page 71) in
the Trigger menu.
• For the connection of peripheral devices to the alarm
output of the I/O port, see the supplied Installation
• The number of alarm outputs varies by model.
The number of selectable alarm output terminals is as
Playing an audio file stored in the
You can play an audio file previously stored in the
system using the SNC audio upload tool.
To use this function, you need to make Voice alert1,
Voice alert2 and Voice alert3 active in the Trigger menu
of the Administrator menu (page 71).
Click Voice alert1, Voice alert2 or Voice alert3 on
the Trigger panel.
Playback of the selected audio file starts and the
playback sound is output from the speaker
connected to the system.
• This operation is not available on the SNT-EP104 or
• Voice alert configuration is only available for CH1 on
You can select TCP or UDP as the communication port
for video/audio data.
This function can be used when Mode (video codec
mode) is set to MPEG4 or H.264 and the ActiveX
Viewer is used.
• The function may not operate correctly if you use
personal firewall software or antivirus software on
your computer. In that case, disable the software or
select the TCP mode.
• If you are using Windows XP Service Pack 2 or later,
or Windows Vista, disable "Windows Firewall." For
details, see "Configuring Windows Firewall" in
"When using Windows XP Service Pack 2 or later" on
page 9, or "Configuring Windows Firewall" in "When
using Windows Vista" on page 11.
Select TCP, UDP (Unicast) or UDP (Multicast)
from the Connection drop-down list in the Others
TCP: This is normally selected.
When TCP is selected as the communication port,
HTTP communication is adopted for video/audio
HTTP is the protocol used for reading the usual
In an environment capable of reading Web pages,
you can watch or listen to video/audio by selecting
the TCP port.
UDP (Unicast): When UDP (Unicast) is selected
as the communication port, RTP (Real-time
Transport Protocol) is adopted for video/audio
communications. Since RTP is the protocol for
running video/audio data, the video/audio playback
is smoother than when TCP (HTTP) is selected. If
a firewall is installed between the system and the
computer, or depending on the network
environment, video/audio may not play back
properly when UDP (Unicast) is selected. In this
case, select TCP.
Switching TCP/UDP Transmission Mode