D-Link DCS-2120 User Manual 2

Wireless Internet Camera

For Home & Small Office

Image/Sound Surveillance Through Internet & 802.11g Wireless LAN
View Live Video Streams From 3G Mobile Phone/PDA
Light-Sensitive Lens & Digital Zoom
Intruder Detection With Still Image Capture & E-Mail Notification
Easy Deployment With UPnP/DDNS Support

1

FEATURES

View Live Video Streams From
3G Mobile Phone
Local Access Through
Ethernet or 802.11g Wireless
LAN
Remote access through
Internet
Low Light Recording Ideal for
Night Time Use
4x Digital Zoom for Close-Up
Viewing
Software Provided to Control
Up to 16 Cameras
Motion Detection Triggered
Recording or Scheduled
Recording
Smart Playback
High Compression Ratio
Recording
Implemented for Intruder
Detection With Still Image
Capture & E-Mail Notification
Easy Deployment With UPnP &
DDNS Support, Web-Based
Configuration

1

4x digital zoom enlarges an image by magnifying the pixels

in a selected portion of the image by 4 times.

1

The DCS-2120 wireless Internet camera is a powerful surveillance system that features

802.11g wireless connection and the ability to view live video streams from a 3G mobile phone
or PDA. Designed as a standalone system complete with CPU and web server, advanced
features such as a light sensitive lens, digital zoom capability and powerful video/sound
surveillance and remote monitoring utility, and this camera presents a low-cost solution for
demanding home/office security needs.

Snapshot enables users to save images directly from a web browser to a computer's hard drive
without installing any additional software. With 0.5 lux light sensitivity, this camera is capable of
capturing video in rooms with minimal lighting. Images can be zoomed using the 4x digital zoom
feature. This camera allows users to monitor video and audio using an Internet browser from
any where in the world. Simple installation procedures, along with the built-in web-based
interface, offer easy integration to any network environments.

Users have the ability to view live video streams from a compatible 3G cell phone. The live
camera feed of the camera can be pulled from the 3G cellular network by using a compatible cell
phone or PDA with a 3G video player. From anywhere within the 3GPP service area, users are
offered a flexible and convenient way to remotely monitor a home or office in real time.

Instead of recording 24 hours a day, 7 days a week, images can be recorded to a computer hard
drive only when motions are detected. This saves disk space and eliminates the time wasted to
view unnecessary images. Playback consumes little time with triggered event browsing and fast
database searching.

Software is included to let users view up to 16 cameras on a single computer screen at one
central location. Images can be recorded manually or according to a pre-set schedule. Users
can set up automated e-mail alerts for sending through the Internet to be alarmed instantly of all
unusual happenings.

For effective surveillance in and around a building, this camera comes with a built-in high-speed

802.11g wireless network interface, allowing images to be transmitted at up to 54Mbps wireless
speed. In addition, a 10/100BASE-TX Ethernet port is also provided for convenient connection to
an Ethernet network or to a broadband Internet via a gateway router.

1

The camera adheres to the Universal Plug-n-Play specification, which allows computers running
Windows XP/ME to automatically recognize the camera and add it to the network. It can be
accessed and viewed from any network place as a device on the network. By signing up with
one of the many free Dynamic DNS services available on the web, users can assign an easy-to­remember name and domain to the camera (e.g. www.mycamera.myddns.com). This allows
them to remotely access the camera without having to remember the IP address, even if their
Internet Service Provider has changed it.

DCS-2120

Technical Specifications

Network Protocol Support Microphone

TCP/IP, RTSP, RTP, RTCP, HTTP, SMTP, FTP, NTP, DNS, DHCP, Directivity: omni-directional
UPnP, DDNS Frequency: 50 to 16000Hz

Connectivity

802.11g wireless LAN

802.3 10/100Mbps 10/100BAS-TX Ethernet supporting
NWay auto negotiation

Video Algorithm Support For 802.11b:
JPEG for still image
Enhanced video compression using MPEG4 Simple Profile

Video Resolution

Up to 30fps at 160x120
Up to 30fps at 176x144
Up to 30fps at 320x240
Up to 30fps at 640x480

Video Features

Adjustable image size and quality
Time stamp and text overlays
3 configurable motion detection windows
Flip & mirror

Video Bit Rate

20K to 4M

Camera Specifications

1/4-inch CMOS sensor

0.5 Lux @ f1.4
AGC/AWB/AES
Electronic shutter: 1/60 to 1/15000 secretary.
Standard fixed mount type lens 4mm, f2.0

o

62 field of view

Security

Administrator and user group protected
Password authentication
Wireless LAN security: 64/128-bit WEP and WPA-PSK
data encryption

Surveillance Software Functions

Remote management/control of up to 16 DCS-2120
cameras
Viewing of up to 16 cameras on one screen
Supports all management functions provided in
web interface
Scheduled motion triggered, or manual recording options

Audio

Sample rate: 16 to 128K (AAC), 4.75 to 12.2K (GSM-AMR)
Full duplex audio communication

S/N ratio: more than 60dB

Wireless Transmit Output Power

16dBm (typical)

Wireless Receive Sensitivity

(Typically @PER < 8% packet size 1024 @ 25 C +/- 5 C)
11Mbps (CCK): -80 dBm

5.5Mbps (CCK): -83 dBm
2Mbps (QPSK): -84 dBm
1Mbps (BPSK): -87 dBm
For 802.11g:
(Typically @PER < 8% packet size 1024 @ 25 C +/- 5 C)
54Mbps (OFDM): -65 dBm
48Mbps (OFDM): -66 dBm
36Mbps (OFDM): -70 dBm
24Mbps (OFDM): -72 dBm
18Mbps (OFDM): -77 dBm
12Mbps (OFDM): -79 dBm
9Mbps (OFDM): -81 dBm
6Mbps (OFDM): -82 dBm

Wireless Operating Range

Indoors: 100 meters
Outdoors: 300 meters

Viewing System Requirements

Operating System: Microsoft Windows XP, 2000, ME
Browser: Internet Explorer v.5.0 or above

Remote Management

Configuration accessible via web browser
Take snapshots and save to local hard drive via web browser

Surveillance

(Motion detection weekly schedule)
Upload snapshot via email
Upload snapshot via FTP

Supported PDA, Mobile Phones & Software

Handsets with 3GPP player
Packet Video Player 3.0
QuickTime 6.5
Real Player 10.5
Windows ME, 2000, XP

LEDs

2-color LED

Physical & Environmental

Power Input

Through 5V DC 2.0A external power adapter

Power Consumption

3.5 watts

Dimensions

26.8 (L) x 72.8 (W) x 115.2 (H) mm (camera only, excluding

oo

oo

1

antenna)

Weight

185 grams (camera, including antenna)

Operating Temperature

oo

0 to 50 C

Storage Temperature

oo

-30 to 75 C

Operating Humidity

5% to 95% non-condensing

Emission (EMI), Safety & Other Certifications

FCC
IC
CE
C-Tick

Radio

EN 300 328-2 (07-2000)

Safety

EN60950

Package Includes

DCS-2120 camera
External power adapter
Cat. 5 Ethernet cable
Quick Installation Guide
Master CD
Dipole antenna
Camera stand

1

Environmental factors may adversely affect range.

2

D-Link Worldwide Offices

U.S.A.
Canada
Europe (U. K.)
Germany
France
Netherlands
Belgium
Italy
Sweden
Denmark
Norway
Finland
Spain
Portugal
Czech Republic

Switzerland
Greece

TEL: [phone]
TEL: [phone]
TEL: [phone]
TEL: [phone]
TEL: [phone]
TEL: [phone]
TEL: [phone]
TEL: [phone]
TEL: [phone]
TEL: [phone]
TEL: [phone]
TEL: [phone]
TEL: [phone]
TEL: [phone]
TEL: [phone]

TEL: [phone]
TEL: [phone]

DCS-2120

FAX: [phone]
FAX: [phone]
FAX: [phone]
FAX: [phone]
FAX: [phone]
FAX: [phone]
FAX: [phone]
FAX: [phone]
FAX: [phone]
FAX: [phone]
FAX: [phone]
FAX: [phone]
FAX: [phone]

FAX: [phone]
FAX: [phone]

Luxemburg
Poland
Hungary
Singapore
Australia
India
Middle East (Dubai)
Turkey
Egypt
Israel
LatinAmerica
Brazil
South Africa
Russia
Japan
China
Taiwan
Headquarters

D-Link is a registered trademark and SecuriCam is a trademark of D-Link Corporation/D-Link System Inc. All other trademarks belong to their proprietors.

TEL: [phone]
TEL: [phone]
TEL: [phone]
TEL: [phone]
TEL: [phone]
TEL: [phone]
TEL: [phone]
TEL: [phone]
TEL: [phone]
TEL: [phone]
TEL: [phone]
TEL: [phone]
TEL: [phone]
TEL: [phone]
TEL: [phone]
TEL: [phone]
TEL: [phone]
TEL: [phone]

FAX: [phone]
FAX: [phone]
FAX: [phone]
FAX: [phone]
FAX: [phone]
FAX: [phone]
FAX: [phone]
FAX: [phone]
FAX: [phone]
FAX: [phone]
FAX: [phone]
FAX: [phone]
FAX: [phone]
FAX: [phone] #350
FAX: [phone]
FAX: [phone]
FAX: [phone]
FAX: [phone]

Specifications subject to change without prior notice.

Rev. 01 (Apr. 2006)