Maximum Cabling Distance
24
Modal
Bandwidth
(MHz-km)
Core Size
(microns)
Wavelength
(nm)
Connector
Type
Cable TypeX2 Transceiver
Product Number
984 feet (300 meters)
787 feet (240 meters)
984 feet (300 meters)
500
400
500
62.5
50.0
50.0
1300MMFX2-10GB-LX4
85 feet (26 meters)
108 feet (33 meters)
217 feet (66 meters)
269 feet (82 meters)
984 feet (300 meters)
160
200
400
500
2000
62.5
62.5
50.0
50.0
50.0
850SC duplexMMFX2-10GB-SR
49.3 miles (80 km)SMFX2-10GB-ZR
24
Cable distances are based on fiber loss. Additional factors, such as the number of splices and the optical quality of the fiber,
can affect cabling distances.
Table 50: X2 Transceiver Optical Transmit and Receive Specifications
Transmit and Receive
Wavelength (nm)
Receive Power (dBm)Transmit Power (dBm)Transceiver TypeX2 Transceiver
Product Number
1530 to 1565–1.0 (maximum)
–15.8 (minimum)
4.0 (maximum)
–4.7 (minimum)
10GBASE-ER, 1550-nm
SMF
X2-10GB-ER
1260 to 13550.5 (maximum)
–14.4 (minimum)
0.5 (maximum)
–8.2 (minimum)
10GBASE-LR, 1310-nm
SMF
X2-10GB-LR
1260 to 13550.5 (maximum)
–8.4 (minimum) (in average)
–6.4 (minimum) (in OMA)
25
0.5 (maximum)
–6.5 (minimum)
10GBASE-LRM, 1310-nm
MMF and SMF
X2-10GB-LRM
840 to 860–1.0 (maximum)
–9.9 (minimum)
–1.2 (maximum)
26
–7.3 (minimum)
10GBASE-SR, 850-nm
MMF
X2-10GB-SR
25
Both the average and the OMA specifications must be met simultaneously.
26
The launch power shall be the lesser of the class 1 safety limit or the maximum receive power. Class 1 laser requirements are
defined by IEC 60825-1:2001.
Table 51: X2 Transceiver Physical and Environmental Specifications
SpecificationCharacteristic
0.53 x 1.41 x 3.58 inches (13.46 x 36 x 91 mm)Dimensions (H x W x D)
Cisco Nexus 7000 Series Hardware Installation and Reference Guide
221
Transceivers and Module Connectors
10GBASE-X X2 Transceivers
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