Alarm Functions - Sony SNC-DF40P Specification

Features
Network Security Features
Adaptive Rate Control
To meet Quality of Service (QoS) requirements over a
network, the SNC-DF Series provides an adaptive rate control
function. This automatically varies the bit rate of audio and
video data to meet changing network conditions and selects
the most appropriate frame rates while also helping to prevent
audio and video breakup.
Multicasting Capability
The SNC-DF Series has a built-in multicasting capability that
enables efficient video and audio streaming to a large number
of users.
Simultaneous Access
Up to 20 (JPEG mode)/10 (MPEG-4 mode) users can
simultaneously access any of the SNC-DF Series cameras
and monitor images separately.
Network Security Features
Access to the SNC-DF Series can be restricted to one or more
groups of selected users. Up to ten different groups can be
established by defining an IP address range for each group. In
addition, user names and passwords can be assigned to
allow three levels of access. The administrator has complete
access/control of the cameras while the other two levels of
access can be set to limit user privileges to functions such as
viewing, trigger control, etc.

Alarm Functions

Motion Detection/Alarm Trigger
The SNC-DF Series is equipped with a built-in motion
detection function that can generate an alarm through its
alarm-output port or trigger another device to perform a
variety of actions. The motion detection function uses vector
information to detect motion so that unwanted noise
components do not accidentally trigger the alarm. In addition,
the SNC-DF Series is equipped with a sensor-input port that
can receive a trigger from an external sensor.
Pre-/Post-Alarm Image Storage
With a built-in buffer memory, the SNC-DF Series can store
several seconds of pre-alarm and post-alarm still images
when an alarm is triggered by the motion detection function,
the alarm input, or both.
Image storage capacity
MPEG-4 image: Approx. 15 s* (pre-/post- 7.5 s)
* when the image size is 320 x 240 at a frame rate of 30 fps and a bit
rate of 512 kbps
JPEG image: Approx. 10 s* (pre-/post- 5 s)
* when the image size is 320 x 240 at a frame rate of 15 fps and the
image quality is set to Level 3
Image Transfer Using FTP/SMTP
All of the pre-/post-alarm images stored at the time of an
alarm event can be transferred to an FTP server for later
viewing. In addition, the still image captured at the time of an
alarm event can be sent to a designated e-mail address.
Analogue Composite Video Output
The SNC-DF Series is equipped with an analogue composite
video output, allowing camera images to be directly recorded
or monitored by connecting video equipment such as
time-lapse recorders, hard disk recorders, and monitors.
Rugged Design (SNC-DF70P)
The SNC-DF70P is specially designed to be used for outdoor
surveillance or indoors for vandal resistant applications.
The cameras are housed in a heavy-duty aluminium die-cast
enclosure with a durable polycarbonate viewing window.
These cameras comply with the IP66
against water and dust.
4
* Ingress Protection (IP) standard is a system for numerically classifying the
degree of protection provided by enclosures of electrical equipment against
solid objects and liquids. IP66 means there is no ingress of dust and the
equipment is protected against powerful water jets.
Power over Ethernet Operation
The SNC-DF40P/DF70P offers a choice of three different
power supplies. AC 24 V or DC 12 V can be supplied through
the standard power terminal. Power can also be supplied
via an Ethernet CAT5 cable from an IEEE 802.3af-compliant
power supply system allowing single cable operation.
AC 24V, DC 12 V, or PoE (Power over Ethernet) is
automatically selected according to the power supplied.
*4
standard for protection