Table 38: Cable Specifications for the CFP Transceivers
Maximum Cable DistanceModal Bandwidth
(MHz-km)
Core Size
(microns)
Wavelength
(nm)
Connector TypeCable TypeTransceiver
98.4 feet (30 m)328.1 feet
(100 m)492.1 feet (150 m)
500 (OM2)2000
(OM3)4700 (OM4)
50.050.050.0850Dual SC/PCMMFCFP-40G-SR4
32.8 feet (10 km)—G.6521310Dual SC/PCSMFCFP-40G-LR4
Table 39: CFP Transceiver Optical Transmit and Receive Specifications
Transmit and Receive
Wavelength (nm)
Receive Power (dBm)Transmit Power (dBm)Transceiver TypeProduct Number
Four lanes: 840 to 860 nm2.4 (maximum per lane)-9.5
(minimum per lane)
2.4 (maximum per lane)-7.6
(minimum per lane)
40GBASE CFPCFP-40G-SR4
Four lanes: 1271 nm, 1291 nm,
1311 nm, and 1331 nm
2.3 (maximum per lane)-13.7
(minimum per lane)
2.3 (maximum per lane)-7
(minimum per lane)
40GBASE CFPCFP-40G-LR4
Table 40: Environmental and Power Specifications for CFP Transceivers
SpecificationParameter
–40 to 185°F (–40 to 85°C)Storage temperature
32 to 158°F (0 to 70°C)Operating temperature
–40 to 158°F (–40 to 70°C)Case temperature
5 to 95 percentStorage relative humidity
40-Gigabit QSFP+ Transceivers
The 40-Gigabit Quad Small-Form Factor Pluggable Plus (QSFP+) transceivers are used with the F3-Series
40-Gigabit Ethernet (N7K-F312FQ-25), M2-Series 40-Gigabit Ethernet (N7K-M206FQ-23L) and M3-Series
40-Gigabit Ethernet (N7K-M324FQ-25L) I/O modules.
Figure 146: QSFP+ Transceiver, on page 209 identifies the major features of these transceivers. For the cable
specifications that apply to these transceivers, see Table 41: Cable Specifications for the 40-Gigabit QSFP+
Transceivers , on page 211. For the optical specifications, see Table 42: QSFP+ Transceiver Optical Transmit
and Receive Specifications, on page 212. For the environmental specifications, see Table 43: Environmental
and Power Specifications for CFP Transceivers, on page 213.
Figure 146: QSFP+ Transceiver
Pull tab2Optical bore1
Cisco Nexus 7000 Series Hardware Installation and Reference Guide
209
Transceivers and Module Connectors
40-Gigabit QSFP+ Transceivers