Nortel Optical Multiservice Edge 6130, Руководство по планированию, Страница: 131 / 292

Technical specifications 7-29
Planning Guide NT6Q92MA Rel 1.0 Iss 1 Standard September 2006
Wavelength range 1260 nm to 1620 nm
Nominal wavelength 1471 nm to 1611 nm
@ 20 nm
Receiver sensitivity -28 dBm
Receiver overload -9 dBm
Path penalty 2.5 dB
Maximum receive reflectance -27 dB
Power monitor accuracy (see Note 2 ) +/- 2 dB
Optical path
Attenuation range 14 dB to 25.5 dB
Nominal reach (see Note 3 ) See Note 4
Maximum dispersion 1600 ps/nm
Minimum optical return loss 24 dB
Dispersion limited distance (see Note 5 ) See Note 4
Attenuation limited distance (see Note 5 ) See Note 4
Note 1: All parameter values in the table achieve an optical system BER better than
1x10
-10
when used over G.652 specified SMF-28 fiber except for the CWDM value
which is for an optical system BER better than 1x10
-12
.
Note 2: Power monitor accuracy figures are for normal operating range (minimum
to maximum transmit power, receiver sensitivity to overload).
Note 3: Nominal reach figures are for classification purposes only as defined in the
appropriate standards.
Note 4: CWDM reach is consistent with Appendix II of ITU-T G.695 (refer to G.695
Table II.2 for parameter values and G.695 Table II.1 for attenuation values).
Dispersion limits are based on 21.1 ps/nm-km.
Note 5: The dispersion and attenuation limited distances are based on the
dispersion and attenuation coefficients detailed in Table 7-22 on page 7-23 and are
for guidance only and must be verified by a full link budget calculation. The actual
limiting distance is the lower of the dispersion limited or attenuation limited
distances.
Note 6: Refer to Ordering information and system engineering rules on page 8-1 for
a list of supported wavelengths and PECs.
Table 7-26 (continued)
Optical specifications for STM-1/4/16 SFPs
Classification 2.5G NRZ CWDM
(S-C8L1-1Dx)