D-Link DES-1200M Manuale utente
DES-1200M
Fast Ethernet Switch System
User’s Guide
Rev. 03 (MAR. 2001)
6012-9830016
Printed In Taiwan
RECYCLABLE
ii
TABLE OF CONTENTS
TABLE OF CONTENTS..................................II
CHAPTER 1 INTRODUCTION ..................1
UNPACKING ...........................................................3
DEVICE DESCRIPTION, FEATURES AND
CAPABILITIES .................................................4
DES-1200M FRONT AND REAR PANELS......................4
DES-128 8 PORTS 10/100BASE-TX MODULE...............6
DES-121T GIGABIT 1000BASE-T SWITCH MODULE .....8
FD THE LED INDICATOR IS YELLOW WHEN THE PORT IS OPERATING
IN FULL-DUPLEX MODE. WHEN THE PORT IS OPERATING IN HALF-
DUPLEX MODE, THE LED INDICATOR IS NOT LIT......................9
DES-124F 4 PORTS 100BASE-FX FIBER MODULE ......10
DES-121G/GL 1000BASE-SX/LX FIBER MODULE.....12
CHAPTER 2 PLANNING YOUR
NETWORK.....................................................13
10BASE-T ETHERNET NETWORK GUIDELINES ............13
100BASE-TX FAST ETHERNET NETWORK GUIDELINES 13
100BASE-FX FAST ETHERNET NETWORK GUIDELINES 14
1000BASE-SX AND LX NETWORK GUIDELINE..........14
NETWORK PLANNING.............................................15
EXPANDED NETWORKS ..........................................15
iii
COLLAPSED BACKBONE LINK..................................17
FILESERVER LINK..................................................19
MULTI-PORT BRIDGE WITH HIGH-BANDWIDTH
BACKBONE ..........................................................20
CHAPTER 3 INSTALLATION..................22
CHOOSING A LOCATION .........................................22
SUPPLYING POWER................................................24
CONNECTING THE SWITCH ......................................24
CHAPTER 4. MODULE INSTALLATION
AND REMOVAL ...........................................25
HANDLING THE MODULES.......................................25
MODULE SETUP AND INSTALLATION.........................25
INSTALLING THE MODULES .....................................26
REMOVING THE MODULES ......................................27
APPENDIX A. TECHNICAL
SPECIFICATIONS..........................................28
COMPATIBILITY WITH ETHERNET STANDARDS:...........28
PHYSICAL CHARACTERISTICS:.................................29
APPENDIX B. PIN ASSIGNMENTS............30
1
CHAPTER 1 INTRODUCTION
DES-1200M are multi-speed network devices combining
Ethernet, Fast Ethernet and Gigabit Ethernet capabilities
in a single compact, rack-mountable cabinet. Combining
10Mbps Ethernet, 100Mbps Fast Ethernet and Gigabit
Ethernet interfaces in one unit allows these switches to
unclog existing LANs and provide a path to efficient,
high-speed networking.
DES-1200M is a combination of a 4-slot host cabinet
which accepts more than 15 different media modules. A
maximum configuration of 32 x 10/100Base-TX switched
ports can be achieved using 4 X 8 port 10/100Base-TX
modules. In the same way, a maximum configuration of
32×10/100Base-TX or 8/16/32 ×100Base-FX ports, or 4
x 1000Base-SX/LX can be accommodated in the host
cabling. Any of the above modules can be integrated to
give up to many different configurations.
Unpacking
Open the shipping cartons of DES-1200M and carefully
unpacks its contents. The carton should contain the
following items:
Figure 1-1. Package Contents
DES-1200M 4-Slot Fast Ethernet System
AC power cord
Rack mounting kit
Four Rubber feet
This User’s Guide
If any item is found missing or damaged, please contact
your local reseller for replacement.
3
DEVICE DESCRIPTION, FEATURES AND
CAPABILITIES
DES-1200M Front and Rear Panels
This section describes the features on the front and rear panels
of the DES-1200M unit.
Figure 1-2. Front Panel
Figure 1-3. Rear Panel
All LED status indicators are located on the FRONT panel of
the switches. They provide a real-time indication of system and
operational status. The ports for connections to other devices
and networks are also on the front panels, along with the
crossover switches. The following sections provide descriptions
of the LED indicators and ports.
4
5
LED Indicators Explanation
Power The red power indicator is illuminated when power is
provided to the switch and the switch is turned in the ON
position.
Link/Activity
Green Link/Activity indicators are illuminated when the
switch detects a connection to that port. The indicator
blinks when data is transmitted over the network
connected to that port.
When a port is not connected, the indicator is off.
Full Duplex/Col
Red Full Duplex/Col indicators are illuminated when that
port is in full duplex mode. The indicator is off when that
port is in half duplex mode.
When a collision occurs on the network connected to a
port, that Full Duplex/Col indicator blinks.
100Mbps Green 100Mbps indicators are illuminated when the port is
operating in 100Mbps mode. The indicator is off when the
port is operating in 10Mbps mode.
Power Port
The power port accepts the power plug.
Power Switch
The power switch, located on the rear panel, controls the power supply
DES-128 8 ports 10/100Base-TX Module
Figure 1-4. 8 port 10/100Base-TX Module
When installed into a DES-1200M, the DES-128 provides 8x
10/100Mbps Switch ports which can connect the DES-1200M to
a 10Mbps or 100Mbps hub or end station.
DES-128 8 Ports 10/100Base-TX Module Features
8x 10/100Base-TX N-Way Switch ports.
Conforms to IEEE 802.3 10Base-T and IEEE 802.3u
100Base-TX and IEEE 802.3x Ethernet Standards
Store and forward switch architecture for abnormal packet
filtering
Support for half and full duplex on all ports
Backplane up to 2.4Gbps
5M memory Buffer support
Automatic address learning with 4K address entry storage
Filtering and forwarding rate of 14,880~148,800 packets
per second
DIP Switch with Link Mode
The DES-128 8 port 10/100Base-TX module provides dip
6
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