3Com Switch 4500 Family, Getting Started Manual, Page: 15 / 134

Switch 4500 — Front View Detail 15
Summary of
Hardware Features
Table 4 summarizes the hardware features that are supported by the
Switch 4500.
Table 4 Hardware Features
Switch 4500 —
Front View Detail
Figure 1 Switch 4500 26-Port — front view
Feature Switch 4500
Addresses Up to 8,000 supported
Auto-negotiation Supported on all ports
Forwarding Modes Store and Forward
Duplex Modes Half and full duplex on all front panel ports
Auto MDI/MDIX Supported on all ports. If fiber SFP transceivers are
used, Auto MDIX is not supported.
Flow Control In full duplex operation all ports are supported
Traffic Prioritization Supported (using the IEEE Std 802.ID, 1998 Edition):
Eight traffic queues per port
Power over Ethernet Supported on 10/100 ports (3CR17571-91 and
3CR17572-91 only)
Ethernet and Fast Ethernet
Ports Auto-negotiating 10BASE-T/100BASE-TX ports
Gigabit Ethernet Ports Auto-negotiating 10BASE-T/100BASE-TX/
1000BASE-T ports (3CR17561-91) only
SFP Ethernet Ports Supports fiber Gigabit Ethernet short-wave (SX),
long-wave (LX), long-haul (LH70) and copper (T)
transceivers in any combination.
RPS Support Connects to -48v DC supply (3CR17571-91 and
3CR17572-91 only)
Mounting 19-inch rack or stand-alone mounting
Unit LED
Console Port
Power LED
10/100BASE-TX Ports
Port Status LEDs
3CR17561-91 SuperStack 3 Switch 4500 26-Port
Dual Personality
10/100/1000BASE-T Ports
1000BASE-X
10/100BASE-TX 10/100/1000BASE-T
Speed: (100Base-TX) Green = 100Mbps Yellow = 10Mbps (1000Base-X) Green = 1000Mbps Yellow = 10/100Mbps Duplex: Green = Full Duplex, Yellow = Half Duplex
26 25 27/25 28/26
Dual Personality
1000Base-X Ports