DES-1200MEOL EOS

Modularized Switch

Tanımlama

4 Open Slots
The Switch comes with 4 open slots for installation of 4 modules.  You install the modules by sliding them into the slots.  Modules selectable include 10/100Mbps modules, Fast Ethernet fiber modules, Gigabit fiber modules and Gigabit copper modules.  All modules come with their own RAM buffers and diagnostic LEDs.
 
Up to 32 10/100Mbps Ports
You can install up to 4 10/100Mbps modules in the Switch to get up to 32 10/100Mbps ports. Each 10/100Mbps module comes with 8 10/100Mbps ports. All ports auto-sense and auto-negotiate the network speeds and full/half duplex. These ports can be used to connect to workstations and print servers, each having a dedicated bandwidth.  

Fast Ethernet Fiber Ports
The Fast Ethernet fiber module provides 4 fiber ports with SC connectors.  These ports support full/half duplex, transfer data at 100Mbps over the single-mode or multi-mode fiber cable.  They can be used to connect workstations or servers over the reliable, long-distance fiber cable.

Gigabit Fiber Ports
The Gigabit fiber module provides a 1000BASE-SX Gigabit fiber port supporting full duplex.  At 2000Mbps speed, this port can be used to connect to a Gigabit server to provide large, bottleneck-free bandwidth for simultaneous access by workstations.  You can also use this module to connect the switch to the company fiber backbone.
 
Gigabit Over Copper Twisted-pair
The Gigabit port provides an inexpensive alternative solution to fiber-optic.  Using your existing low-cost Cat. 5 copper twisted-pair wires as the transmission media, this port allows you to instantly upgrade your server to Gigabit capability without requiring you to install new, expensive fiber cables.
 
IEEE 802.3x Flow Control
All ports support Flow Control, allowing servers to directly connect to the Switch for fast, reliable data transfer.  At full duplex, this function provides high-speed data pipes to your servers with minimum data transfer loss. 

Genel Özellikler

Standards
- IEEE 802.3 10BASE-T Ethernet (twisted-pair copper)
- IEEE 802.3u 100BASE-TX Fast Ethernet (twisted-pair copper)
- IEEE 802.3u 100BASE-FX Fast Ethernet (fiber)
- IEEE 802.3z 1000BASE-SX Gigabit Ethernet (fiber)
- IEEE 802.3ab 1000BASE-T Gigabit Ethernet  (twisted-pair copper)
- ANSI/IEEE 802.3 NWay auto-negotiation
- IEEE 802.3x Flow Control
 
Protocol
CSMA/CD
     
Data Transfer Rates
- Ethernet: 
  10Mbps (half duplex)
  20Mbps (full duplex)
- Fast Ethernet:
  100Mbps (half duplex)
  200Mbps (full duplex)
- Gigabit Ethernet:
  2000Mbps (full duplex)
     
Topology
Star
 
Network Cables
- 10BASE-T:
  2-pair UTP Cat. 3, 4, 5 (100 m)
  EIA/TIA-586 100-ohm STP (100 m)
- 100BASE-TX, 1000BASE-T:
  UTP Cat. 5 (100 m max.)
  EIA/TIA-568 100-ohm STP (100m max.)
- 100BASE-FX:
  50, 62.5/125 micron multi-mode fiber-optics (2 km max.) 
  8, 9/125-micron single-mode fiber-optics (60 km max.) 
- 1000BASE-SX:
  50, 62.5/125 micron multi-mode fiber-optics (500 m max.) 
  10/125-micron single-mode fiber-optics (10 km max.) 
 
Full/half Duplex
- Full/half duplex for 10/100Mbps speeds
- Full duplex only for Gigabit speed
 
Media Interface Exchange
MDI-II/MDI-X auto-sensing
 
Twisted-pair Rx Reverse Polarity
Auto-correction

Switch Chassis Back plane Fabric
Up to 9.6Gbps forwarding rate
 
Transmission Method
Store-and-forward
     
MAC Address Table
12K entries per module
 
MAC Address Learning
 Automatic update
 
Packet Filtering/Forwarding Rates (half duplex)
- Ethernet: 14,880 pps per port
- Fast Ethernet: 148,810 pps per port
- Gigabit Ethernet: 1,488,100 pps per port
     
RAM Buffer
- DES-128, DES-124FX modules: 5MB per module
- DES-121T, DES-121G modules: 3MB per module 

Çözümler

Sipariş Bilgisi

Modular Switch 
DES-1200M
  Chassis (no modules)
 
Optional Modules
DES-128
    8 10/100Mbps ports
DES-124F   4 100BASE-FX Fast Ethernet fiber ports (SC connectors)
DES-121G  1 1000BASE-SX Gigabit fiber port (SC connector)
DES-121T    1 10/100/1000Mbps Gigabit copper port

Görseller

DES-1200M/B
View from the right

İndir

Destek Merkezi