1000Base-X Sfp Interface - 3Com Baseline Switch 2900 Series Getting Started Manual

1000Base-X SFP Interface

Each 3Com Baseline Switch 2900 Family provides four 1000Base-X SFP interfaces on its front panel.
You can select the GE SFP transceivers described in
Table 1-4 Transceivers supported by the 3Com Baseline Switch 2900 Family 1000Base-X SFP
interfaces
Transceiver
type
GE SFP
transceiver
Note* that SFP-GE-LX-SM1310-BIDI and SFP-GE-LX-SM1490-BIDI must be used pairwise.
The types of SFP transceivers may update with time. For information about transceivers, contact 3Com
technical support or marketing staff.
Transceiver
SFP-GE-SX-MM850-A
SFP-GE-LX-SM1310-A
SFP-GE-LH40-SM1310
SFP-GE-LH40-SM1550
SFP-GE-LH70-SM1550
SFP-GE-LX-SM1310-B
IDI*
SFP-GE-LX-SM1490-B
IDI*
SFP-GE-T
Table 1-4.
Central
Connector
wavelength
850 nm
1310 nm LC
1550 nm
TX: 1310 nm
RX: 1490
nm
LC
TX: 1490 nm
RX: 1310
nm
— RJ-45
1-9
Max
transmis
Fiber
sion
distance
50/125 µm 550 m
multimode (0.34
optical fiber
miles)
62.5/125 µm 275 m
multimode (0.17
optical fiber miles)
10 km
(6.21
miles)
40 km
(24.86
9/125 µm
miles)
single mode
40 km
optical fiber
(24.86
miles)
70 km
(43.50
miles)
9/125 µm 10 km
single mode (6.21
optical fiber miles)
100 m
Twisted pair
(328.08
cable
ft)