Nortel Networks 4500 Series - Manual (Page 49)

10GBASE-SR XFP specifications 49
Table 21
IEEE 802.3ae 10GBASE-SR XFP specifications
Parameter Specifications
Data rate 10.0 Gbit/s
Line rate (64B/66B code) 10.3125 gigabits per second (Gbit/s) ± 100 parts per
million (ppm)
Mean Time Between Failures (MTBF) 675 000 hours
Center wavelength range 840 to 860 nanometers (nm), nominal 850 nm
Distance Using 62.5 µm MMF optic cable:
•
160 MHz-km fiber: 2 to 26 m
•
200 MHz-km fiber: 2 to 33 m
Using 50 µm MMF optic cable:
•
400 MHz-km fiber: 2 to 66 m
•
500 MHz-km fiber: 2 to 82 m
•
2000 MHz-km fiber: 2 to 300 m
Link optical power budget 7.3 dB
Maximum transmitter and dispersion
penalty 3.9 dB at 300 m
Transmitter characteristics
Root-mean-square spectral width 0.05 to 0.40 nm
Launch power -7.3 to -1.0 deciBels referenced to 1 milliwatt (dBm)
Maximum average launch power of OFF
transmitter -30 dBm
Minimum extinction ratio 3.0 dB
Maximum relative intensity noise
12
OMA -128 dB per Hertz (dB/Hz)
Maximum optical return loss tolerance -12 dB
Receiver characteristics
Average receive power for BER 10 -12 -9.9 to -1.0 dBm
Maximum average receive power for
damage 0 dBm
Maximum receiver sensitivity in OMA -11.1 dBm
Maximum receiver reflectance -12 dB
Stressed receiver sensitivity in OMA -7.5 dBm
Receiver electrical 3 dB upper cutoff
frequency 12.3 gigaHertz (GHz)
Nortel Ethernet Routing Switch 4500 Series
Installation — SFPs and XFPs
NN47205-301 02.01
20 October 2008
Copyright © 2007-2008 Nortel Networks
.