7
1.3 Product Features
Physical Port
Model Name
Ports
Fiber Optical Interface
Copper
Optical
Mode
Distance
ISW-511
4 x
10/100BASE-TX
1 x
100BASE-FX
Multi-mode 2km
ISW-511T
ISW-511S15
Single-
mode
15km
ISW-511TS15
ISW-621
2 x
100BASE-FX
Multi-mode 2km
ISW-621T
ISW-621S15
Single-
mode
15km
ISW-621TS15
ISW-621TF
Multi /
Single
Mode
depending
on SFP
Module
Layer 2 Features
Complies with IEEE 802.3, IEEE 802.3u 10/100BASE-TX, 100BASE-FX
Supports auto-negotiation and 10/100Mbps half / full duplex mode
for each copper port
High performance store and forward architecture, broadcast storm
control, runt/CRC filtering eliminates erroneous packets to optimize
the network bandwidth
Prevents packet loss with back pressure (half-duplex) and IEEE
802.3x pause frame flow control (full-duplex)
Backplane (switching fabric):
ISW-511 / ISW-511T Series: 1Gbps
ISW-621 / ISW-621T Series: 1.2Gbps
Integrated address look-up engine, supporting 2K absolute MAC
addresses
1Mbit on-chip frame buffer on ISW-511 / ISW-621 Series and ISW-
511T / ISW621T Series
Automatic address learning and address aging
CSMA/CD Protocol
Summary of Contents for ISW-511 Series
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