3com S8520X-28S 0235A370 Benutzerhandbuch
Produktcode
0235A370
1-7
Table 1-4
S5820X series 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
distance
100 m (328.1 ft.)
Transmission medium Category-5 unshielded twisted pair cable
Standard
IEEE 802.3i, 802.3u, 802.3ab
SFP+ Interface
The S5820X-28S provides 24 fixed SFP+ interfaces on its front panel; the S5820X-28C provides 14
fixed SFP+ interfaces on its front panel. You can plug in SFP+ transceiver, SFP transceiver or SFP+
cables into the SFP interfaces as needed, increasing the networking flexibility.
fixed SFP+ interfaces on its front panel. You can plug in SFP+ transceiver, SFP transceiver or SFP+
cables into the SFP interfaces as needed, increasing the networking flexibility.
Table 1-5
Transceivers and cables supported by SFP+ interfaces
Transceiver
/Cable type
Transceiver/Cable
Central
wavelength
Connector
Fiber
Max
transmissio
n distance
50/125µm
multimode
optical fiber
multimode
optical fiber
550 m
(1804.5 ft)
(1804.5 ft)
SFP-GE-SX-MM85
0-A
0-A
850 nm
62.5/125µm
multimode
optical fiber
multimode
optical fiber
275 m (902.2
ft)
ft)
SFP-GE-LX-SM131
0-A
0-A
10 km (about
6.2 mi)
6.2 mi)
SFP-GE-LH40-SM1
310
310
1310 nm
40 km (about
24.9 mi)
24.9 mi)
SFP-GE-LH40-SM1
550
550
40 km (about
24.9 mi)
24.9 mi)
SFP-GE-LH70-SM1
550
550
1550 nm
LC
9/125 µm
single mode
optical fiber
single mode
optical fiber
70 km (about
43.5 mi)
43.5 mi)
SFP-GE-LX-SM131
0-BIDI
0-BIDI
TX: 1310
RX: 1490
RX: 1490
GE SFP
transceiver
transceiver
SFP-GE-LX-SM149
0-BIDI
0-BIDI
TX: 1490
RX: 1310
RX: 1310
LC
9/125µm
single mode
optical fiber
single mode
optical fiber
10 km (about
6.2 mi)
6.2 mi)