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SNC EP520/EP521/EP550/EP580/ER520/ER521/ER550/ER580/ER585/ER585H/ZP550/ZR550
Operating the Camera
Switching Transmission Mode
22
Controlling alarm output 1
You can control Alarm output 1.
To use this function, you need to make Alarm output 1
active in the Trigger menu of the Administrator menu
(page 80).
1
Click Alarm output1 on the Trigger panel.
The alarm output is switched by clicking.
The alarm output mode can be selected from
Togg le or Timer of Alarm output 1 (page 80) in
the Trigger menu.
Tip
For the connection of peripheral devices to the alarm
output of the I/O port, see the supplied Installation
Manual.
Controlling the Day/Night function
You can set the Day/Night function to On (night mode)
and Off (day mode).
To use this function, you need to make Day/Night active
in the Trigger menu of the Administrator menu
(page 80).
1
Click Day/Night on the Trigger panel.
Each click switches the Day/Night function
alternately between On (night mode) and Off (day
mode).
Note
If Day/Night mode in the Trigger-Day/Night menu
(page 80) is set to Auto, you cannot control the Day/
Night function by clicking Day/Night.
Playing an audio file stored in the
camera
You can play an audio file previously stored in the
camera 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 80).
1
Click Voice alert1, Voice alert2 or Voi ce al er t3 on
the Trigger panel.
Playback of the selected audio file starts and the
playback sound is output from the speaker
connected to the camera.
Switching Transmission
Mode
You can change the transmission mode 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.
Note
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.
1
Select TCP, Unicast or Multicast from the
Connection drop-down list in the Others panel.
TCP: This is normally selected.
When TCP is selected, HTTP communication is
adopted for video/audio communications. HTTP is
the protocol used for reading the usual Web page.
In an environment capable of reading Web pages,
you can watch or listen to video/audio by selecting
the TCP port.
Unicast: When Unicast is selected, 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 camera and the
computer, or depending on the network
environment, video/audio may not play back
properly when Unicast is selected. In this case,
select TCP.
Multicast: This protocol is selectable when
Multicast streaming (page 42) is On. When
Multicast is selected, RTP (Real-time Transport
Protocol) and UDP multicast techniques are
adopted for video/audio transmission. By selecting
it, the network transmission load of the camera can
be reduced. If a router that does not correspond to a
multicast or firewall is installed between the
camera and the computer, video/audio may not play
back properly. In this case, select TCP or Unicast.
Note
When connecting via a proxy server, neither Unicast
nor Multicast can be selected.
22


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