- Cisco Network Card User's Manual
5
Cisco 40-Gigabit and 100-Gigabit CFP Transceiver Modules Installation Note
OL-23946-01
 Overview
Table 2 lists the 100-Gigabit CFP port cabling specifications. Table 3 lists the optical transmit and 
receive specifications for 100-Gigabit CFP transceivers. 
Note The minimum cabling distance for the CFP-100G-LR4, CFP-40G-FR, and the CFP-40G-LR4 
transceivers is 6.56 feet (2 meters). The minimum cabling distance for the CFP-40G-SR4 and the 
CFP-100G-SR10 transceivers is 1.64 feet (0.5 m).
Table 2 CFP Optical Transceiver Module Cabling Specifications
CFP Transceiver 
Module Model
Wavelength 
(nm)
Fiber Type Core Size 
(µm)
Modal 
Bandwidth 
(MHz/km)
Cabling Distance 
100-Gigabit
CFP-100G-LR4 1310 SMF G.652 — 6.28 miles (10 km)
CFP-100G-SR10 850 MMF 50.0
50.0
2000 (OM3)
4700 (OM4)
328.1 ft (100 m)
492.1 ft (150 m)
40-Gigabit
CFP-40G-SR4 850 MMF 50.0
50.0
50.0
500 (OM2)
2000 (OM3)
4700 (OM4)
98.4 ft (30 m)
328.1 ft (100 m)
492.1 ft (150 m)
CFP-40G-LR4 1310 SMF G652 — 6.28 miles (10 km)
CFP-40G-FR 1550 SMF G.652 — 1.24 miles (2 km)
Table 3 CFP Transceiver Module Optical Transmit and Receive Specifications
CFP Transceiver 
Module Model
Transceiver Type  Transmit 
Power (dBm) 
Receive Power 
(dBm)
Transmit and Receive 
Wavelength (nm)
100-Gigabit
CFP-100G-LR4 100GBASE-LR4, 
1310-nm SMF 
4.5 per lane 
(Max) 
–4.3 per lane 
(Min)
4.5 per lane 
(Max) 
–10.6 per lane 
(Min) 
Four lanes:
1295.6
1300.1
1304.6
1309.1
CFP-100G-SR10 100GBASE-SR10 -1.0 per lane 
(Max)
-7.6 per lane 
(Min)
2.4 per lane 
(Max)
-9.5 per lane 
(Min)
Ten lanes 840 to 860
40-Gigabit
CFP-40G-SR4 40GBASE-SR4, 
850 nm MMF
2.4 per lane 
(Max)
–7.6 per lane 
(Min)
2.4 per lane 
(Max)
–9.5 per lane 
(Min)
Four lanes 840 to 860










