Cisco Cisco 40 Gigabit Modules 安装指南
4
Cisco 40-Gigabit QSFP+ Transceiver Modules Installation Note
OL-24862-01
Overview
lists the 40-Gigabit optical QSFP+ port cabling specifications.
lists the QSFP+ transceiver modules optical transmit and receive specifications.
Table 2
QSFP+ Transceiver Port Cabling Specifications
QSFP+ Product Number
Nominal
Wavelength
(nm)
Wavelength
(nm)
Cable Type
Core Size
(microns)
(microns)
Modal
Bandwidth
(MHz/km)
Bandwidth
(MHz/km)
Maximum Cabling Distance
QSFP-40G-SR4=
850
MMF
50.0
50.0
50.0
50.0
50.0
500 (OM2)
2000 (OM3)
4700 (OM4)
2000 (OM3)
4700 (OM4)
30 m (98 ft)
100 m (328 ft)
150 m (492 ft)
100 m (328 ft)
150 m (492 ft)
QSFP-40G-CSR4=
850
MMF
62.5
50.0
50.0
50.0
50.0
50.0
50.0
200 (OM1)
500 (OM2)
2000 (OM3)
4700 (OM4)
500 (OM2)
2000 (OM3)
4700 (OM4)
33 m (108 ft)
82 m (269 ft)
300 m (984 ft)
400 m (1312 ft)
82 m (269 ft)
300 m (984 ft)
400 m (1312 ft)
QSFP-40GE-LR4=
1310
SMF
G.652
—
10 km (6.2 miles)
Table 3
QSFP+ Transceiver Optical Transmit and Receive Specifications
QSFP+ Product Number
Transceiver Operating Mode
Transmit Power
(dBm)
(dBm)
Receive Power
(dBm)
(dBm)
Transmit and
Receive
Wavelength (nm)
Receive
Wavelength (nm)
QSFP-40G-SR4=
40GBASE-SR4, 4 lanes, 850 nm
-1 per lane
(Max)
(Max)
–7.6 per lane
(Min)
(Min)
2.4 per lane
(Max)
–9.5 per lane
(Min)
(Max)
–9.5 per lane
(Min)
Four lanes, 840 to
860
860
QSFP-40G-CSR4=
40GBASE-CSR4, 4 lanes, 850 nm
-1.2 per lane
(Max)
(Max)
-7.3 per lane
(Min)
(Min)
-1 per lane
(Max)
(Max)
-9.9 per lane
(Min)
(Min)
Four lanes, 840 to
860
860
QSFP-40GE-LR4=
40GBASE-LR4, 1310 nm
2.3 per lane
(Max)
(Max)
-7 per lane
(Min)
(Min)
2.3 per lane
(Max)
(Max)
-13.7 per lane
(Min)
(Min)
Four lanes, 1271,
1291, 1311, 1331
1291, 1311, 1331