1. Introduction
The 24-port Managed Gigabit Ethernet Switches are standard L2 switches that meets all IEEE 802.3/u/x/z
Gigabit, Fast Ethernet specifications. The switches have 20 10/100/1000Mbps copper ports and 4 combo ports
with copper and Gigabit SFP slots. The switches support console CLI, Telnet CLI, Web GUI and SNMP
interface for switch management. The network administrator can logon the switch to monitor and configure
port operating mode, Quality of Service, and powerful L2 switching functions such as VLAN, IGMP, RSTP etc.
In addition, the switches are also featured with security functions such as IEEE802.1x and ACL control to
make them suitable for office applications.
The switch is featured with the following switched ports and advantages in a 1U rack box:
20 10/100/1000Mbps Gigabit copper ports
4 combo ports - 10/100/1000Mbps copper & 1000Base-X SFP
Model Definition
Model Description
Management
Power
Input
KGS-2421-S
AC powered model
Managed
AC 100 ~ 240V
KGS-2421-D
DC powered model
Managed
DC +/-48V
Plug and Play
The switch is shipped with factory default configuration which behaves like an unmanaged Gigabit switch for
workgroup. It provides 24 10/100/1000Mbps copper ports for connections to Ethernet, Fast Ethernet, and
Gigabit Ethernet devices. With the featured auto-negotiation function, the switch can detect and configure the
connection speed and duplex automatically. The switch also provides auto MDI/MDI-X function, which can
detect the connected cable and switch the transmission wire pair and receiving pair automatically. This
auto-crossover function can simplify the type of network cables used.
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