D-Link DCS-2100G Router Manual PDF (Setup & Configuration Guide)

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121

DCS-2100 User’s Manual

D-Link Systems, Inc.

Frequently Asked Questions

5 Can the Internet Camera be used outdoors?

The Internet Camera is not weatherproof. It needs to be equipped with a weatherproof

case to be used outdoors and it is not recommended.

1

What is an Internet Camera?

The Internet Camera is a stand-alone system connecting directly to an Ethernet or Fast

Ethernet network. It differs from a conventional PC Camera, the Internet Camera is an

all-in-one system with built-in CPU and Web-based solutions providing a low cost

solution that can transmit high quality video images for monitoring. The Internet Camera

can be managed remotely, accessed and controlled from any PC/Notebook over an

Intranet or the Internet from a Web browser.

2

What is the maxim

um n

umber of user

s that can be

allowed to access DCS-2100 simultaneously?

The maximum number of users that can log onto the Internet Camera at the same time

is 10. Please keep in mind the overall performance of the transmission speed will slow

down when many users are logged on.

3

What algorithm is used to compress the digital

image?

The Internet Camera utilizes H.263+ MPEG-4 Short Header Mode image compression

technology to provide high quality images.

4 Can I capture still images from the Internet Camera?

Yes you are able to capture still images with the snapshot function from the software

application CD supplied with the Internet Camera or with the snapshot function on the

Home page using an Internet browser.

Internet Camera Installation

Internet Camera Features

Page 122 / 138

122

DCS-2100 User’s Manual

D-Link Systems, Inc.

Frequently Asked Questions

6

When ph

ysicall

y connecting the Internet Camera to

a network what network cabling is required?

The Internet Camera uses Category 5 UTP cable allowing 10 Base-T and 100 Base-T

networking.

7 Can the Internet Camera be setup as a PC-cam on a

computer?

No, the

DCS-2100

Internet Camera is used only on an wireless 802.11g, Ethernet or

Fast Ethernet network. The D-Link DSB-C110, DSB-C310 can be used as a PC Camera

(Webcam).

8 Can the DCS-2100 be connected to the network if it

consists of only private IP addresses?

Yes, the Internet Camera can be connected to a LAN with private IP addresses.

9 Can the DCS-2100 be installed and work if a firewall

exists on the network?

If a firewall exists on the network, port 80 is open for ordinary data communication. The

DCS-2100

uses port 5001 for control and synchronization, port 5002 for streaming

audio and port 5003 for streaming video. These ports (or the ports you specify from the

Advanced

Tab in the Configuration screen if you change the default ports) need to be

opened on the firewall. Please refer to page 47 for more information.

10

Wh

y am I unab

le to access the DCS-2100 fr

om a

W

eb br

o

wser?

If a router or firewall is used on the network, the correct ports for the

DCS-2100

may not be configured on the router or firewall. To correct the problem, you

need to determine if the

DCS-2100

is behind a router or firewall and if the router or

firewall is properly configured for the ports the

DCS-2100

is using. Refer to page 37 for

help in opening the correct ports on a router or firewall for use with the

DCS-2100

.

Other possible problems might be due to the network cable. Try replacing your network

cable. Test the network interface of the product by connecting a local computer to the

unit, utilizing a Ethernet crossover cable. If the problem is not solved the Internet Camera

might be faulty.

Page 123 / 138

123

DCS-2100 User’s Manual

D-Link Systems, Inc.

Frequently Asked Questions

11

Wh

y does the Internet Camera w

ork locall

y b

ut not

externally?

This might be caused by

network firewall protection. The firewall may need to have

some settings changed in order for the Internet Camera to be accessible outside your

local LAN. Check with the Network Administrator for your network.

Make sure that the Internet Camera isn’t conflicting with any Web server you may have

running on your network.

The default router setting might be a possible reason. Check that the configuration of

the router settings allow the Internet Camera to be accessed outside your local LAN.

Please refer to page 37 for more information.

13

Wh

y does a series of br

oad ver

tical white lines

appear throughout the image?

It could be that the CMOS sensor has become overloaded when it has been exposed

to bright lights such as direct exposure to sunlight or halogen lights. Reposition the

Internet Camera into a more shaded area immediately as prolonged exposure to bright

lights will damage the CMOS sensor.

12 I connected the Internet Camera directly to a

computer with a cross-over cable Ethernet cable and

received the f

ollo

wing

Windo

ws err

or upon running

the Installation

Wizar

d:

This Windows error will occur if the Internet Camera is connected to a computer that is

not properly configured with a valid IP address. Turn off DHCP from the Network Settings

in Windows and configure the computer with a valid IP address or connect the camera

to a router with DHCP enabled.

This error can also occur if the

Installation Wizard

icon is clicked on more than once

from the setup wizard.

Page 124 / 138

124

DCS-2100 User’s Manual

D-Link Systems, Inc.

Frequently Asked Questions

14

The f

ocus on the Internet Camera is bad,

ho

w can I

correct it?

Adjust the Internet Camera focus manually as described in

Adjusting the Internet

Camera Focus

section (page 127).

15 Noisy ima

g

es occur

.

Ho

w can I solve the pr

ob

lem?

The video images might be noisy if the Internet Camera is used in a very low light

environment. To solve this issue you need more lighting.

16

The ima

g

es appear to be of poor quality

,

ho

w can I

improve the image quality?

Make sure that your computer’s display properties are set above 256 colors. Using 16

or 256 colors on your computer will produce dithering artifacts in the image, making the

image appear to be of poor quality.

The configuration on the Internet Camera image display is incorrect. Through the

Advanced > Image Setting

section of the Web management you need to adjust the

image related parameters

such as brightness, contrast, hue and power line frequency

for fluorescent light . Please refer to the

Advanced > Image Setting

section on Page

54 for detailed information.

Page 125 / 138

125

DCS-2100 User’s Manual

D-Link Systems, Inc.

Frequently Asked Questions

How to PING Your IP Address

The PING (Packet Internet Groper) command can determine whether a specific IP

address is accessible by sending a packet to the specific address and waiting for a

reply. It can also provide a very useful tool to confirm if the IP address conflicts with

Internet Camera over the network.

Follow the step-by-step procedure below to utilize the PING command but first you

must disconnect Internet Camera from the network.

1

Start a DOS window.

2

Type ping x.x.x.x, where x.x.x.x is the IP address of the Internet Camera.

The replies, as illustrated below, will help diagnose any connection problems.

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