C
HAPTER
1
| Introduction
Description of Hardware
– 17 –
ES-2024G/2024GP
S
WITCH
A
RCHITECTURE
These switches employ a wire-speed, non-blocking switching fabric. This
permits simultaneous wire-speed transport of multiple packets at low
latency on all ports. The switch also features full-duplex capability on all
ports, which effectively doubles the bandwidth of each connection.
The switches use store-and-forward switching to ensure maximum data
integrity. With store-and-forward switching, the entire packet must be
received into a buffer and checked for validity before being forwarded. This
prevents errors from being propagated throughout the network.
N
ETWORK
M
ANAGEMENT
O
PTIONS
With a comprehensive array of LEDs, the switch provides “at a glance”
monitoring of network and port status. The switch can be managed over
the network with a web browser.
For a detailed description of the management features, refer to the
User
Manual
.
P
OWER
-
OVER
-
E
THERNET
All of the ES-2024GP's 10/100/1000 Mbps ports support the IEEE 802.3at-
2009 PoE standard that enables DC power to be supplied to attached
devices using wires in the connecting Ethernet cable. The total PoE power
delivered by all ports cannot exceed the 185W power budget. This means
that up to five ports can supply a maximum 34.2W of power
simultaneously to connected devices, or all 24 ports can supply up to 7.7W
simultaneously.
Any PoE-compliant device attached to a port can directly draw power from
the switch over the Ethernet cable without requiring its own separate
power source. This capability gives network administrators centralized
power control for devices such as IP phones and wireless access points,
which translates into greater network availability.
For each attached PoE-compliant device, the switch automatically senses
the load and dynamically supplies the required power. The switch delivers
power to a device using the wire pairs in UTP or STP cable.
D
ESCRIPTION
OF
H
ARDWARE
10/100/1000BASE-T
P
ORTS
The switches contain 24 RJ-45 ports that operate at 10 Mbps, 100 Mbps, or
1000 Mbps, half or full duplex. Because all ports on these switches support
automatic MDI/MDI-X operation, you can use straight-through cables for all
network connections to PCs or servers, or to other switches or hubs.
(See
“1000BASE-T Pin Assignments” on page 48
Each of these ports support auto-negotiation, so the optimum transmission
mode (half or full duplex), and data rate (10, 100, 1000 Mbps) can be
selected automatically. If a device connected to one of these ports does not
Summary of Contents for iPECS ES-2024G
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