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D-Link Dss 8 Manual

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Page 11

 
8 
duplex (FDX) mode.  Otherwise, it is blinking when collisions are 
occurring on the respective port. 
100M Link/Activity, 10M Link/Activity 
(100M LINK/ACT(green), 
10LINK/ACT(amber)) 
This indicator lights green when the port is connected to a 100Mbps 
Fast Ethernet station, if the indicator blinking green will be 
transmission or received data on the 100Mbps network. Otherwise, if 
the indicator light amber when the port is connected to a 10Mbps 
Ethernet station, if the indicator blinking amber...

Page 12

 
9 
another hub or an Ethernet switch, you should use a crossover cable, 
or make the connection using the MDI-X jack (described below). 
♦
 Uplink Jack(s) (MDI-II): Use this jack to connect stations to the 
hub. This is an MDI-II (Medium-dependent Interface, straight-
wired) jack, which means you can connect the hub to a device with 
an MDI-X port using an ordinary straight-through cable, making a 
crossover cable unnecessary. 
 
 
  

Page 13

 
10 
CONNECTING THE DSS-8+ 
This chapter describes how to connect the DSS-8+ to your Fast 
Ethernet network.  In each of the following figures, the DSS-8+ is 
shown.  
PC to DSS-8+ 
A PC can be connected to DSS-8+ via a two-pair Category 3, 4, 5 
UTP/STP straight cable.  The PC (equipped with a RJ-45 10/100Mbps 
phone jack) can be connected to any of the 8 ports (1x - 8x).   
The LED indicators for PC connection depend on the LAN card’s 
capabilities. If LED indicators are not lit after making a proper...

Page 14

 
11 
A. 10BASE-T Hub  
For a 10BASE-T hub, the DSS-8+ LED indicators should light up as 
the following:  
“Full-Duplex/Collision” indicator is OFF. 
“100LINK/ACT,10LINK/ACT LED” indicator is light amber. 
B. 100BASE-TX Hub 
For a 100BASE-TX hub, the DSS-8+ LED indicators should light up 
as the following: 
“Full-Duplex/Collision” LED indicator is OFF.  
“100LINK/ACT,10LINK/ACT” LED indicator is light green. 
Hub without Uplink (MDI-II) port 
If a hub is not equipped with an uplink (MDI-II) port,...

Page 15

 
12 
A. Using straight cable  
When using straight cable, this is done from the uplink (MDI-II) port 
of the DSS-8+ (DSS-8+ A) to any of the 10Mbps or 100Mbps  (MDI-
X) port of the other switch (switch B) or other devices. 
B. Using crossover cable  
When using crossover cable, this is done from any (MDI-X) port of 
the DSS-8+ (DSS-8+ A) to any of the 10Mbps, 100Mbps  (MDI-X) 
port of the other switch (switch B) or other devices.  
1.  The “100LINK/ACT,10LINK/ACT” LED indicator light 
green for hookup...

Page 16

 
 
INSTRUCTIONS FOR USE OF STACKING BRACKETS 
First, make sure you have one pair of stacking brackets for each 
device. 
Next, slide one bracket onto each end of the device as shown in the 
diagram below. Be sure each bracket is positioned correctly. 
 
 
 
Note when clicking each bracket into place, the round feet on the 
bottom of the device will line up with the round holes on the bracket. 
The brackets are designed to fit snugly in place. Please do not force 
them. 
The brackets are now ready for...

Page 17

 
 
14 
RJ-45 PIN SPECIFICATION 
When connecting your DSS-8+ to another switch, a bridge or a hub, a 
modified crossover cable is necessary.  Please review these products 
for matching cable pin assignment. 
The following diagram and tables show the standard RJ-45 
receptacle/connector and their pin assignments for the switch-to-
network adapter card connection, and the straight / crossover cable for 
the DSS-8+-to-switch/hub/bridge connection. 
 
 
RJ-45 Connector pin assignment 
Contact Media Direct...

Page 18

 
 
15
 
  
 The standard RJ-45 receptacle/connector 
The following shows straight cable and crossover cable connection: 
 
 Straight cable for DSS-8+ (uplink MDI-II port) to switch/Hub or 
other devices connection 
 
 
 Crossover cable for DSS-8+ (MDI-X port) to switch/hub or other 
network devices (MDI-X port) connection 
 
 
 
  

Page 19

 
 
16
TECHNICAL SPECIFICATIONS 
 
General 
Standards  IEEE 802.3 10BASE-T Ethernet 
IEEE 802.3u 100BASE-TX Fast Ethernet 
ANSI/IEEE Std. 802.3 NWay Auto-negotiation 
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 (100 m), EIA/TIA- 568 
100-ohm STP (100 m) 
100BASE-TX: 2-pair UTP Cat. 5 (100 m), EIA/TIA-568 
100-ohm STP (100 m)...

Page 20

 
 
17
Physical and Environmental 
DC inputs  DC7.5V/1.5A 
Power 
Consumption  11.25 watts. (max.) 
Temperature 
Operating: 0° ~ 50° C, Storage: -10° ~ 70° C 
Humidity  Operating: 10% ~ 90%, Storage: 5% ~ 90% 
Dimensions  190 x116 x 32 mm (W x H x D) 
EMI:  FCC Class B, CE Mark B, VCCI-II  
Performance 
Transmissio
n Method: Store-and-forward 
RAM 
Buffer: 256KBytes  per device 
Filtering 
Address 
Table: 16K entries per device 
Packet 
Filtering/For
warding 
Rate: 10Mbps Ethernet: 14,880/pps 
100Mbps...
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