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Table 1-3 10/100/1000Base-T Ethernet port specifications
Item Specification
Connector type
RJ-45
Interface standard
z 10 Mbps, full duplex
z 100 Mbps, full duplex
z 1000 Mbps, full duplex
z MDI/MDI-X, auto-sensing
Max transmission distance
100 m (328.08 ft.)
Transmission medium
Category-5 unshielded twisted pair cable
Standard
IEEE 802.3i, 802.3u, 802.3ab
SFP Port
The SFP ports on the front panel of Switch 4510G supports fiber Gigabit Ethernet long-wave (LX),
long-haul (LH70) and copper (T), 100BASE-LX10, and 100BASE-FX transceivers in any combination..
All SFP transceivers are hot swappable and optional. Therefore, networking is more flexible.
z You are recommended to use SFP transceivers of 3Com on the Switch 4510G.
z The types of SFP transceivers may update with time. For information about transceivers, contact
3Com technical support or marketing staff.
Combo Port
One SFP port and the corresponding 10/100/1000Base-T Ethernet port form a Combo port. For each
Combo port, either the SFP port or the corresponding 10/100/1000Base-T Ethernet port can be used at
a time. For details about the combo port mapping relationship, please refer to
Table 1-4.
Table 1-4 Combo port mapping relationship
Model SFP port 10/100/1000Base-T Ethernet port
25 22
26 24
27 21
Switch 4510G 24-Port
28 23
49 46
50 48
51 45
Switch 4510G 48-Port
52 47