Linksys SRW224G4P - Manual (Page 7)

Product Overview
24-Port 10/100 + 4-Port Ggabt Swtch wth WebVew and Power over Ethernet
Chapter 2
Chapter 2:
Product Overvew
Front Panel
The LEDs and ports are located on the front panel of the
Switch .
Front Panel
POWER (Green/Amber) Lights up green to
indicate that power is being supplied to the
Switch . Lights amber to indicate that the Switch’s
power-on-self-test (POST) is in progress . Blinks
amber to indicate that the POST has failed .
LINK/ACT (1-24) (Green/Amber) Lights up
green to indicate a functional 10/100Mbps
network link through the corresponding port
with an attached device that does not use Power
over Ethernet (PoE) . Lights up amber to indicate a
functional 10/100Mbps network link through the
corresponding port with an attached PoE device .
Blinks green to indicate that the Switch is actively
sending or receiving data over that port .
LINK/ACT (G1-G4) (Green/Amber) Lights up
green to indicate a functional 10/100Mbps
network link through the corresponding port
with an attached device . Blinks green to indicate
that the Switch is actively sending or receiving
data over that port . Lights amber to indicate a
functional 1000Mbps network link . Blinks green
to indicate that the Switch is actively sending
or receiving data over that port . No amber light
indicated that the link is at 10/100Mbps or there
is no link .
ETHERNET 1-24 These RJ-45 ports support
network speeds of either 10Mbps or 100Mbps,
and can operate in half and full-duplex modes .
Auto-sensing technology enables each port to
automatically detect the speed of the device
connected to it (10Mbps or 100Mbps), and adjust
its speed and duplex accordingly .
The Switch’s 10/100 RJ-45 ports also support the
IEEE 802 .3af Power-over-Ethernet (PoE) standard
that enables DC power to be supplied to attached
devices using wires in the connecting twisted-pair
cable . Any 802 .3af-compliant device attached to
a port can directly draw power from the Switch
over the twisted-pair 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 802 .3af-compliant device,
the Switch automatically senses the load and
dynamically supplies the required power . The
Switch delivers power to a device using the two
data wire pairs in the twisted-pair cable . Each
port can provide up to 15 .4W of power at the
standard -48 VDC voltage .
To connect a device to a port, you will need to
use Category 5 (or better) network cable .
ETHERNET G1-G4 The Switch is equipped with
four Gigabit RJ-45 ports, two that are shared with
two miniGBIC ports . If a Gigabit miniGBIC port is
being used, the associated RJ-45 port (G3 and/or
G4) cannot be used .
All four ports support auto-negotiation, so the
optimum transmission mode (half or full duplex)
and data rate (10, 100, or 1000 Mbps) can be
selected automatically, if this feature is also
supported by the attached device . If a device
connected to one of these ports does not support
auto-negotiation, the communication mode of
that port can be configured manually .
Each port also supports IEEE 802 .3-2002
auto-negotiation of flow control, so the Switch
can automatically prevent port buffers from
becoming saturated .
These ports support automatic MDI/MDI-X
operation, so you can use straight-through cables
for all network connections to PCs, servers, or
additional switches .