Installation Manual
H3C S7502 Ethernet Switch
Chapter 1 Product Overview
1-5
The status LEDs on an LS81P12TE are described in the following table.
Table 1-3
Description of LEDs on the panel of an LS81P12TE
LED
Status
OFF
The link is down or no link is presented.
ON
The link is active.
LINK/ACT
Blinking
Data is being transmitted or received on the port.
1.2.3 Port Cable
I. Optical port cables for 12-port 1000Base-X (SFP)
Table 1-4
Description of 1000Base-X (SFP) port cables
SFP module
Central
wavelength
Connector
Matching
cable
Maximum
transmission
distance
50 µm/125 µm
multimode
optical fiber
cable
550 m (1804
ft)
SFP-GE-SX-MM
850-A
850 nm
LC
62.5 µm/125
µm multimode
optical fiber
cable
275 m (902 ft)
SFP-GE-LX-SM
1310-A
10 km (6 mi)
SFP-GE-LH40-S
M1310
1310 nm
LC
9 µm/125 µm
single mode
optical fiber
cable
40 km (about
25 mi)
SFP-GE-LH40-S
M1550
40 km (about
25 mi)
SFP-GE-LH70-S
M1550
70 km (43 mi)
SFP-GE-LH100-
SM1550
1550 nm
LC
9 µm/125 µm
single mode
optical fiber
cable
100 km (62 mi)
SFP-GE-LH70-S
M1470-CW
1470 nm
LC
9 µm/125 µm
single mode
optical fiber
cable
70 km (43 mi)
SFP-GE-LH70-S
M1490-CW
1490 nm
LC
9 µm/125 µm
single mode
optical fiber
cable
70 km (43 mi)