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Remote Monitoring Solutions

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Video Networking Solutions >

VPort 251

Video

Video Compression: MJPEG or MPEG4 (ISO/IEC 14496-2)

Video Inputs: 1, BNC connector (1.0 Vpp, 75 ohms)

Video Outputs: Via Ethernet port (1.0 Vpp, 75 ohms)

NTSC/PAL: Auto-sensing or manual

Video Resolution and FPS (frames per second):

Full motion, 1-channel MJPEG/MPEG4 video encoder

VPort 251

Introduction

Compress analog video/audio signals into MJPEG/MPEG4 ›

video streams

Video stream up to 30 frames/sec at full D1 (720 x 480) resolution ›

2-way (1-in/1-out) audio supported ›

Transparent PTZ control for using legacy PTZ control panel or ›

keyboard

Loop-through power output for powering an analog camera ›

Free VPort SDK PLUS and 4-channel video surveillance software ›

The VPort 251 is a high performance, 1-channel video encoder with

compact form factor that is suitable for installation in a variety of

locations, including outdoor camera cabinets. To make installation

easier, the VPort 251 supports both panel mounting and DIN-Rail

mounting (with DK-35A accessory), and 1 loop-through power output

for powering an analog camera. In addition, the VPort 251 provides

up to full D1, full frame rate video performance (NTSC: 720 x 480 up

to 30 FPS; PAL: 720 x 576 up to 25 FPS) and supports both MJPEG

or MPEG4, making it especially well-suited for use with distributed

video surveillance systems, and a 2-way audio function is provided

for the convenience of real-time communication between system

administrators located at the central site, and engineers in the field.

Speciﬁ cations

NTSC PAL

Size Max. FPS Size Max. FPS

QVGA

320 x 240 30 320 x 288 25

CIF

352 x 240 30 352 x 288 25

VGA

640 x 480 30 640 x 576 25

4CIF

704 x 480 30 704 x 576 25

Full D1

720 x 480 30 720 x 576 25

GPIO

Digital Inputs: 1, max. 8 mA

• High: +13 to +30V

• Low: -30 to +3V

Relay Outputs: 1, max. 24 VDC @ 1 A

LED Indicators

STAT: Indicates if the system booted properly or not

VIDEO: Video input signal active

PTZ: PTZ control signal active

Power Requirements

Input Voltage: 12/24 VDC or 24 VAC input

Power Consumption: Approx. 7.5 W

Power Output: 2-pin terminal block connector for loop-through from

power input

Physical Characteristics

Housing: Metal

Dimensions: 88.2 x 106 x 50 mm (3.47 x 4.17 x 1.97 in)

Weight: 850 g

Installation: DIN-Rail mounting (with optional kit), wall mounting

Alarms

Video Motion Detection: Includes sensitivity tuning

Video Loss: Video loss alarm

Scheduling: Daily repeat timing schedule

Imaging: JPEG snapshots for pre/trigger/post alarm images

Email/FTP Messaging: Automatic transfer of stored images via

email or FTP with event-triggered actions

Custom Alarms: HTTP event servers for setting customized alarm

actions

Video Viewing:

• Adjustable image size and quality

• Timestamp and text overlay

Audio

Audio Inputs: 1 Line-in or MIC-in with 3.5 mm phone jack

Audio Outputs: 1 Line-out with 3.5 mm phone jack

Network

Protocols: TCP, UDP, HTTP, SMTP, FTP, Telnet, NTP, DNS, DHCP,

UPnP, RTP, RTSP, ICMP, IGMPv3, QoS, DDNS, SNMPv1/v2c/v3

Ethernet: 1 10/100BaseT(X) auto negotiating RJ45 port

Serial Port

PTZ Ports: 1, RS-232/422/485 (terminal block connector), max.

115.2 Kbps

Console Port: 1 RS-232 RJ45 port

The certiﬁ cation logos shown here apply to some or all of the products in this

section. For details, see “Regulatory Approvals” under “Speciﬁ cations” below.

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