System specifications
...................................................................................................................................................................................................................................
Optical Interfaces
STM-1
The table below lists some parameters and the end of life power budgets for the
STM-1 optical SFPs:
Application
S-1.1 (I-1)
L-1.1
L-1.2
Operating wavelength range
1260-1360 nm
1270-1360 nm
1480-1580 nm
Transmitter at reference point S
Source type
MLM
SLM / MLM
SLM
Spectral width at -20 dB (max)
NA
1 nm (SLM)
1 nm
RMS spectral width (max)
7.7 nm
3 nm (MLM)
NA
Side mode suppression ratio (min)
NA
30 dB / NA
30 dB
Mean launched power (max)
-8 dB
0 dB
0 dB
Mean launched power (min)
-15 dB
-5 dB
-5 dB
Extinction ratio (min)
8.2 dB
10 dB
10 dB
Mask of the eye diagram of the
optical transmit signal
see G.957
see G.957
see G.957
Optical path between points S and R
Maximum dispersion
96 ps/nm
NA / 246 ps/nm
NA
Attenuation range
0 - 12 dB
10 - 28 dB
10 - 28 dB
Minimum optical return loss of the
cable plant at point S including the
optical connector
NA
NA
20 dB
Receiver at reference point R
Sensitivity (min) at BER = 1 × 10
-10
-28 dBm
-34 dBm
-34 dBm
Overload (min)
-8 dBm
-10 dBm
-10 dBm
Optical path penalty
< 1 dB
< 1 dB
< 1 dB
Optical return loss of the receiver
(min)
NA
NA
> 25 dB
STM-4
The table below lists some parameters and the end of life power budgets for the
STM-4 optical SFPs:
Application
S-4.1
L-4.2
Operating wavelength range
1274-1356 nm
1480-1580 nm
Transmitter at reference point S
Source type
MLM
SLM
Product description
...................................................................................................................................................................................................................................
365-312-847R4.0
Issue 4, November 2006
Lucent Technologies - Proprietary
See notice on first page
2-33
