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D-Link
DES-1008P
8-Port Desktop Switch With
4 PoE Ports
User Guide
UL Warning
a) Elevated Operating Ambient Temperature- If installed in a closed or
multi-unit rack assembly, the operating ambient temperature of the rack
environment may be greater than room ambient. Therefore, consideration
should be given to installing the equipment in an environment compatible
with the manufacturer's maximum rated ambient temperature (Tmra).
b) Reduced Air Flow- Installation of the equipment in a rack should be
such that the amount of air flow required for safe operation of the
equipment is not compromised.
c) Mechanical Loading- mounting of the equipment in the rack should be
such that a hazardous condition is not achieved due to uneven mechanical
loading.
d) Circuit Overloading- Consideration should be given to the connection of
the equipment to the supply circuit and the effect that overloading of circuits
might have on over current protection and supply wiring. Appropriate
consideration of equipment nameplate ratings should be used when
addressing this concern.
e) Reliable Earthing- Reliable earthing of rack-mounted equipment should
be maintained. Particular attention should be given to supply connections
other than direct connections to the branch circuit (e.g., use of power strips).
Ver. 1.00
TABLE OF CONTENTS
About This Guide................................................................................. 1
Purpose ............................................................................................ 1
Terms/Usage.................................................................................... 1
Introduction.......................................................................................... 2
Fast Ethernet Technology ................................................................ 2
Switching Technology ..................................................................... 3
Power over Ethernet (PoE) .............................................................. 4
Features............................................................................................ 4
Unpacking and Installation .................................................................. 5
Unpacking........................................................................................ 5
Installation ....................................................................................... 5
Connecting Network Cable.............................................................. 6
Identifying External Components ........................................................ 7
Front Panel....................................................................................... 7
Rear Panel........................................................................................ 7
Understanding LED Indicators ............................................................ 9
System LED..................................................................................... 9
POE status LEDs (Port 1 ~ Port 4)................................................... 9
Ethernet port status LEDs (Ports 1~8) ........................................... 10
PoE Rule ........................................................................................ 10
Technical Specifications.................................................................... 12
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ABOUT THIS GUIDE
Congratulations on your purchase of the D-Link DES-1008P, an 8-
Port 10/100Mbps Fast Ethernet Switch with 4-Port PoE. This Switch
integrates 100Mbps Fast Ethernet and 10Mbps Ethernet network
capabilities in a highly flexible package. Port-1 to Port-4 on the switch
support Power over Ethernet (PoE), meaning it will automatically
detect the presence of an IEEE 802.3af-compliant powered device (PD)
and provide power through the port. The switch provides up to 15.4 W
per PoE port and can be used to power WLAN access points, IP
phones, video cameras, and other PD devices. The Switch will
automatically detect the network appliance’s requirements, and will
supply the required power to each appliance accordingly.
Purpose
This guide discusses how to install your 8-Port 10/100Mbps Fast
Ethernet Switch with 4-Port PoE.
Terms/Usage
In this guide, the term “Switch” (first letter upper case) refers to your
8-Port 10/100Mbps Fast Ethernet Switch with 4-Port PoE and
“switch” (first letter lower case) refers to other Ethernet switches.
1
INTRODUCTION
This chapter describes the features of the D-Link DES-1008P Fast
Ethernet PoE Switch and some background information about Ethernet/Fast
Ethernet, Switching and Power over Ethernet technology.
Fast Ethernet Technology
The growing importance of LANs and the increasing complexity of
desktop computing applications are fueling the need for high performance
networks. A number of high-speed LAN technologies have been proposed
to provide greater bandwidth and improve client/server response times.
Among them, 100BASE-TX (Fast Ethernet) provides a non-disruptive,
smooth evolution from the current 10BASE-T technology.
100Mbps Fast Ethernet is a standard specified by the IEEE 802.3 LAN
committee. It is an extension of the 10Mbps Ethernet standard with the
ability to transmit and receive data at 100Mbps, while maintaining the
CSMA/CD Ethernet protocol. Since the 100Mbps Fast Ethernet is
compatible with all other 10Mbps Ethernet environments, it provides a
straightforward upgrade and takes advantage of the existing investment
in hardware, software, and personnel training.
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Switching Technology
Another approach to pushing beyond the limits of Ethernet technology
is the development of switching technology. A switch bridges Ethernet
packets at the MAC address level of the Ethernet protocol transmitting
among connected Ethernet or Fast Ethernet LAN segments.
Switching is a cost-effective way of increasing the total network capacity
available to users on a local area network. A switch increases capacity
and decreases network loading by dividing a local area network into
different segments, which don’t compete with each other for network
transmission capacity.
The switch acts as a high-speed selective bridge between the individual
segments. The switch, without interfering with any other segments,
automatically forwards traffic that needs to go from one segment to
another. By doing this the total network capacity is multiplied, while
still maintaining the same network cabling and adapter cards.
Switching LAN technology is a marked improvement over the previous
generation of network bridges, which were characterized by higher
latencies. Routers have also been used to segment local area networks,
but the cost of a router, the setup and maintenance required make
routers relatively impractical. Today switches are an ideal solution to
most kinds of local area network congestion problems.
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Power over Ethernet (PoE)
Power over Ethernet (PoE) integrates power and data onto one single
cabling infrastructure, eliminating the need to have AC power
available at all locations.
Power and Data is integrated onto the same cable, supporting category
5/5e up to 100 Meters. PoE will provide power to PoE compatible
devices, such as IP telephones, wireless LAN access points and IP
security cameras.
PoE is already widely adopted in the market, saving up to 50% of
overall installation costs by eliminating the need to install separate
electrical wiring and power outlets.
Features
‹ 8 ×10/100Mbps Auto-negotiation Fast Ethernet RJ45 ports with
4-port PoE function (port-1 ~ port-4)
‹ Compliant with 802.3af specification
‹ Supports PoE power up to 15.4W for PoE port
‹ Supports PoE power up to 56W for all PoE ports
‹ Supports PoE IEEE802.3af compliant Powered Device (PD)
‹ Each port supports auto MDI/MDIX, so there is no need to use
cross-over cables or an up-link port
‹ Full/half duplex transfer mode for each port
‹ Wire speed reception and transmission
‹ Up to 1K unicast addresses entities per device, self-learning, and
table aging
‹ 96KBytes packet buffer
‹ Supports IEEE 802.3x flow control for full-duplex mode ports
‹ Supports Back-pressure flow control for half-duplex mode ports
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UNPACKING AND INSTALLATION
This chapter provides unpacking and installation information for the
Switch.
Unpacking
Open the shipping cartons of the Switch and carefully unpack its
contents. The carton should contain the following items:
‹ One DES-1008P
‹ One DC power adapter
‹ Four rubber feet
‹ CD-ROM with Product Document
‹ Quick Installation Guide.
If any item is found missing or damaged, please contact your local
reseller for replacement.
Installation
The setup of the Switch can be performed using the following steps:
‹ The surface must support at least 1.5 Kg (3.5 lbs) for the Switch.
‹ The power outlet should be within 1.82 meters (6 feet) of the
Switch.
‹ Visually inspect the DC power jack and make sure that it is fully
secured to the power adapter.
‹ Make sure that there is proper heat dissipation from and
adequate ventilation around the Switch. Do not place heavy
objects on the Switch.
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Connecting Network Cable
The Switch support 8 10/100Mbps Ethernet ports and Port 1 ~ port 4
are PoE Enabled ports, these PoE port will automatically activate
when a compatible terminal is identified. The Switch will supply
power through the Ethernet port to the connected PoE powered device
(PD).
For legacy devices that are not compatible, the PoE port will not offer
power to this device. This feature allows users to freely and safely mix
legacy and Power over LAN compatible devices on their network.
The Switch supports 10Mbps Ethernet or 100Mbps Fast Ethernet and
it runs both in half and full duplex mode using two pair of Category 5
cable.
These RJ45 ports are Auto-MDI type port. The Switch can auto
negotiate to MDI-II or MDI-X type, so you can connect any RJ-45
cable regardless if it is a standard or crossover cable.
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IDENTIFYING EXTERNAL COMPONENTS
This chapter describes the front panel, rear panel, and LED indicators
of the Switch.
Front Panel
The figure below shows the front panels of the Switch.
Figure 1. Front panel
LED Indicator:
Comprehensive LED indicators display the status of the switch and
the network (see the LED Indicators chapter below).
Rear Panel
Figure 2. Rear panel
Ethernet Ports (Port 1~8):
These ports support network speeds of either 10Mbps or 100Mbps,
and can operate in half- and full- duplex transfer modes. These ports
also support automatic MDI/MDIX crossover detection, which gives
the Switch true, “plug and play” capabilities. Just connect any network
cable between the Switch and the device, and The Switch will
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automatically detect the settings of the device and adjust itself
accordingly.
PoE Ports (Port 1~4 only):
These ports are PoE Enabled ports, the PoE port will automatically
activate when a compatible terminal is identified. The Switch will
supply power through the Ethernet port to the connected PoE device.
For legacy devices that are not compatible, the PoE port will not offer
the power to this device. This feature allows users to freely and safely
mix legacy and PoE compatible devices on the network.
DC Power Jack: Power is supplied through an external DC power
adapter. Check the technical specification section for information
about the DC power input voltage.
Since the switch does not include a power switch, plugging its power
adapter into a power outlet will immediately power it on.
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UNDERSTANDING LED INDICATORS
The front panel LEDs provides instant status feedback, and helps
monitor and troubleshoot when needed.
Figure 3. LED indicators of the Switch
System LED
PWR: (Power Indicator)
On
: Power On
: Power Off
Off
PoE status LEDs (Port 1 ~ Port 4)
PoE Status:
When the PoE powered device (PD) is connected and the port supplies
power successfully.
Green
:
:
When the PoE port has failed, possibly due to:
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9
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PoE power circuit shortage
Power over current: over the power current of PD’s classification
Out of PoE voltage of 44 ~ 57 VDC output
Red
Off
: No PoE powered device (PD) connected.
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PoE MAX
At least 10W of PoE power is available to connect another PoE
device.
Off
:
When the power output to powered devices has reached or exceeded
Green
: the maximum power budget. No additional powered devices
connected will be powered.
Blinking
Green
Indicates at least 10W of PoE power is available again.
Ethernet port status LEDs (Ports 1~8)
10/100M Link/ACT:
When the 10M LED lights on, the respective port is successfully
connected to 10M Ethernet network. Otherwise, when the 10M LED is
blinking, the port is transmitting or receiving data on the Ethernet
network.
10M
:
:
When the 100M LED lights on, the respective port is successfully
connected to 100M Fast Ethernet network. Otherwise, when the 100M
LED is blinking, the port is transmitting or receiving data on the Fast
Ethernet network.
100M
Off
: No link.
PoE Rule
PoE Max: this function will help to protect the PoE Switch and to
stabilize the power transmitting to the powered device (PD).
If the system power usage is >= 46, the PoE MAX LED will turn on
and the system will not provide power to the additional PoE PD. This
is done to protect the PoE Switch itself and to stabilize the power
transmitting to the other PoE PDs plugged into the Switch.
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For example: There are PoE PDs connected to the PoE Switch and the
total power consumption is 48 watts. The system will reserve 8 watts
for a buffer and the PoE MAX LED will light up. Once there is
another PoE PD inserted, the system will not provide power to the
additional PoE PD.
Priority: This function will help protect the system when the system
power is overloaded. The system will disable the PoE function of
lower priority PoE ports to maintain the power to higher priority PoE
ports.
The total power resource for the system is 56W shared between the 4
PoE ports (maximum power for per port is 15.4W). If all PoE PDs
power consumption is over 56W, the system will automatically
arrange the priority of these ports. The lower port number will have
the higher priority and the higher port number will have a lower
priority (Highest priority: Port 1 > Port 2 > Port 3 > Port 4).
For example: In this PoE Switch, Port 2 is using 15 watts and Port 3,4
is using 15.4 watts, these two ports are using 45.8 watts total. If there
is an additional PoE PD inserted to Port 1 with 15.4 watts, the system
power resource is over current and the priority function will activate.
The priority will be applied to the lowest port number to highest port
number, so Port 1,3 will use 15.4 watts, Port 2 will use 15 watts, and
the system will cut off the power to Port 4 due to over current.
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TECHNICAL SPECIFICATIONS
General
Standards
IEEE 802.3 10BASE-T Ethernet
IEEE 802.3u 100BASE-TX Fast Ethernet
IEEE 802.3x Full Duplex Flow Control
IEEE 802.3af Power over Ethernet
Protocol
CSMA/CD
Data Transfer Rate
Ethernet: 10Mbps (half duplex), 20Mbps (full-duplex)
Fast Ethernet: 100Mbps (half duplex), 200Mbps (full-duplex)
Topology
Star
Network Cables
10BASET: 2-pair UTP Cat. 3, 4, 5; up to 100m
100BASE-TX: 2-pair UTP Cat. 5; up to 100m
4 × 10/100Mbps Auto-MDIX RJ45 ports with POE enabled (port 1 ~ port 4)
4 × 10/100Mbps Auto-MDIX RJ45 ports (port 5 ~ port 8)
Number of Ports
PoE Power on RJ-
45
Power+: ping 3 & ping 6
Power-: ping 1 & ping 2
Physical and Environmental
DC inputs
48VDC/1.45A
6.3 watts. (max. no PD device connected)
Power
Consumption
62.3 watts (max. with 56W PoE Device connected)
Temperature
Humidity
Dimensions
EMI:
Operating: 0° ~ 40° C, Storage: -10° ~ 70° C
Operating: 10% ~ 90%, Storage: 5% ~ 90%
171 x 98 x 29 mm
FCC Class B, CE Mark Class B, VCCI Class B
Safety:
cUL(UL60950), CB(IEC60950)
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Performance
RAM Buffer:
96K bytes per device
1K entries per device
Filtering Address Table:
Packet Filtering/Forwarding Rate:
10Mbps Ethernet: 14,880/pps
100Mbps Fast Ethernet: 148,800/pps
MAC Address Learning:
Transmits Method:
Automatic update
Store-and-forward
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