3com 3CR17562-91 数据表
ENHANCES MANAGEMENT AND CONTROL
The Switch 4500 family is easy to use and manage,
designed to increase business productivity by reliably
supporting business applications. Additionally, the PoE
models deliver intelligent power management (“smart
PoE”) with dynamic allocation of available power
resources.
designed to increase business productivity by reliably
supporting business applications. Additionally, the PoE
models deliver intelligent power management (“smart
PoE”) with dynamic allocation of available power
resources.
MINIMIZES VOICE OVER IP COMPLEXITY
Minimize the cost and complexity associated with
adding or moving IP phones: the Switch 4500 detects
the presence of IP phones and dynamically assigns
switch ports to the voice VLAN, enabling automated
configuration and prioritization of Voice over IP (VoIP)
traffic.
adding or moving IP phones: the Switch 4500 detects
the presence of IP phones and dynamically assigns
switch ports to the voice VLAN, enabling automated
configuration and prioritization of Voice over IP (VoIP)
traffic.
DELIVERS HIGH PERFORMANCE
No need to buy new switches when additional network
performance is needed, as the Switch 4500 family
features 26-port and 50-port models, providing
aggregate switching capacity up to 8.8 Gbps and 13.6
Gbps, respectively.
performance is needed, as the Switch 4500 family
features 26-port and 50-port models, providing
aggregate switching capacity up to 8.8 Gbps and 13.6
Gbps, respectively.
The Switch 4500 also supports jumbo frames at sizes
up to 9,216 bytes for greater efficiency in large data
transfers.
up to 9,216 bytes for greater efficiency in large data
transfers.
REDUCES CONFIGURATION EXPENSE
Automatic updating of Layer 3 network topologies,
negotiation of port speed and duplex mode, and
detection and adjustment of cable type reduces
configuration time and expense.
negotiation of port speed and duplex mode, and
detection and adjustment of cable type reduces
configuration time and expense.
REDUNDANT POWER SYSTEM SUPPORT
The two 3Com Switch 4500 PWR models support a
redundant power system (RPS) connection.
redundant power system (RPS) connection.
RPS units provide these benefits:
› For PWR switches, an RPS can deliver more power
budget for IEEE 802.3af Power over Ethernet than
what the switches alone can provide. For example,
what the switches alone can provide. For example,
the Switch 4500G PWR 50-port switch has a PoE
power budget of 300 Watts, which means that
approximately half of the ports can provide the full
802.3af PoE power of 15.4 Watts. With an RPS provid-
ing power, all 48-ports can provide a full 15.4 Watts
of PoE power.
power budget of 300 Watts, which means that
approximately half of the ports can provide the full
802.3af PoE power of 15.4 Watts. With an RPS provid-
ing power, all 48-ports can provide a full 15.4 Watts
of PoE power.
› They deliver redundant power to switches so there is
continued operation should the switch unit power
supply fail. This allows for continuous operation of
advanced Enterprise networks, particularly impor-
tant for converged networks running IP phones on
the network.
supply fail. This allows for continuous operation of
advanced Enterprise networks, particularly impor-
tant for converged networks running IP phones on
the network.
3Com H3C RPS Systems
3Com switches are compatible with 3Com h3C
®
RPS
solutions. These are enterprise-class power
redundancy systems that work with many 3Com fixed-
configuration switches. 3Com Corporation
manufactures networking equipment under the h3C
brand for sale into many markets.
redundancy systems that work with many 3Com fixed-
configuration switches. 3Com Corporation
manufactures networking equipment under the h3C
brand for sale into many markets.
The h3C RPS 1000 is 1U high and provides multiple
power output connections to support multiple switch
units at the same time. Two power rectifiers can be
installed for 1+1 load sharing and power redundancy.
It supports switches with -54V RPS connections, and
delivers sufficient power to fully provision all PoE
ports of a switch with full power redundancy.
power output connections to support multiple switch
units at the same time. Two power rectifiers can be
installed for 1+1 load sharing and power redundancy.
It supports switches with -54V RPS connections, and
delivers sufficient power to fully provision all PoE
ports of a switch with full power redundancy.
SUPPORTED BY LIMITED LIFETIME HARDWARE
WARRANTY
WARRANTY
3Com gives a Limited Lifetime hardware Warranty on
the Switch 4500 10/100 Family. Also provided is
Advanced hardware Replacement, with next business
day shipment available in most regions, and telephone
support and limited lifetime software updates.
the Switch 4500 10/100 Family. Also provided is
Advanced hardware Replacement, with next business
day shipment available in most regions, and telephone
support and limited lifetime software updates.
2
3COM 4500 10/100 FAMILY
KEY BENEFITS
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