LG-Ericsson iPECS ES-2024G, Руководство по установке

Страница: 36 / 60

– 36 –
ES-2024G/2024GP
4
M
AKING
N
ETWORK
C
ONNECTIONS
C
ONNECTING
N
ETWORK
D
EVICES
The switches are designed to be connected to 10, 100, or 1000 Mbps
network cards in PCs and servers, as well as to other switches and hubs. It
may also be connected to remote devices using optional 1000BASE-SX,
1000BASE-LX, 1000BASE-LH, or 100BASE-FX SFP transceivers.
T
WISTED
-P
AIR
D
EVICES
Each device requires an unshielded twisted-pair (UTP) cable with RJ-45
connectors at both ends. Use Category 5, 5e, or 6 cable for 1000BASE-T
connections, Category 5 or better for 100BASE-TX connections, and
Category 3 or better for 10BASE-T connections.
P
OWER
-
OVER
-
E
THERNET
C
ONNECTIONS
The ES-2024GP switch automatically detects a PoE-compliant device by its
authenticated PoE signature and senses its required load before turning on
DC power to the port. This detection mechanism prevents damage to other
network equipment that is not PoE compliant.
N
OTE
:
Power-over-Ethernet connections work with all existing Category 3,
4, 5, 5e, or 6 network cabling, including patch cables and patch-panels,
outlets, and other connecting hardware, without requiring modification.
The switch delivers power to a device using the wire pairs in UTP or STP
cable (RJ-45 pins 1, 2, 3, and 6). The ES-2024GP can provide up to 34.2 W
of power continuously on any of its ports. If a device tries to draw more
than 34.2 W from a port, an overload condition occurs and the port
disables the power.
The switch controls the power and data on a port independently. Power can
be requested from a device that already has a data link to the switch. Also,
the switch can supply power to a device even if the port’s data connection
has been disabled. The power on a port is continuously monitored by the
switch and it will be turned off as soon as a device connection is removed.