H3C S12508-AC Installation Manual page 142

Model
SFP-GE-LH70-SM1470-CW
SFP-GE-LH70-SM1490-CW
SFP-GE-LH70-SM1510-CW
SFP-GE-LH70-SM1530-CW
SFP-GE-LH70-SM1550-CW
SFP-GE-LH70-SM1570-CW
SFP-GE-LH70-SM1590-CW
SFP-GE-LH70-SM1610-CW
SFP-FE-SX-MM1310-GE
SFP-GE/FE-LX10-SM1310
SFP-GE-T
NOTE:
• To perform a loopback operation on a long-haul optical transceiver (40 km or above, that is, 24.86
miles or above) by connecting it with a short optical fiber, as shown in
appropriate optical attenuation. Otherwise, the optical transceiver may be damaged.
The SFP-FE-SX-MM1310-GE supports only an optical interface speed of 100 Mbps.
•
The SFP-GE/FE-LX10-SM1310 supports an optical interface speed of 100 Mbps and 1000 Mbps.
•
Figure 72 Loopback operation on an optical transceiver
Central
Connector
wavelength
1470 nm
1490 nm
1510 nm
1530 nm
LC
1550 nm
1570 nm
1590 nm
1610 nm
1310 nm LC
1310 nm LC
— RJ-45
132
Max transmission
Fiber
distance
9/125 μm single
70 km (43.50 miles)
mode optical fiber
50/125 μm
multimode optical
fiber
2 km (1.24 miles)
62.5/125 μm
multimode optical
fiber
9/125 μm single
10 km (6.21 miles)
mode optical fiber
Category 5 or
100 m (328.08 ft)
higher twisted pair
Figure 72, you must select an