Main Indices of the OptiX OSN 950. Permitted Frequency Deviation of Optical Input Interface. Output Frequency Precision of Internal Oscillator in Free-Run Mode, страница 3

Item		Unit	Value
Nominal bit rate		kbit/s	STM-4 622080
Application Code			S-4.1
Operating wavelength range		nm	1274–1356
Transmitter at reference point S	Optical source type		SLM
	Maximum RMS spectral width	nm	2.5
	Maximum -20dB spectral width	nm	-
	Minimum side mode suppression ratio	dB	-
	Mean launched power
	Maximum mean launched power	dBm	–8
	Minimum mean launched power	dBm	–15
	Minimum extinction ratio	dB	8.2
	Attenuation range	dB	0–12
	Maximum dispersion	ps/nm	74
	Minimum return loss of optical cable at S, including any connectors	dB	NA
	Maximum discrete reflectance between S and R	dB	NA
Receiver at reference point R	Minimum sensitivity	dBm	–28
	Minimum overload	dBm	–8
	Maximum optical path penalty	dB	1
	Maximum reflectance of receiver, measured at R	dB	–27

Table C-4 Parameters specified for STM-16 optical interfaces

Item		Unit	Value
Nominal bit rate		kbit/s	STM-16 2488320
Classification code			I-16	S-16.1	L-16.1	L-16.2
Operating wavelength range		nm	1260-1360	1260-1360	1280-1335	1500-1580
Transmitter at reference point S	Source type		SLM	SLM	SLM	SLM
	Maximum RMS spectral width	nm	4	-	-	-
	Maximum -20dB spectral width	nm	-	1	1	<1
	Minimum side mode suppression ratio	dB	-	30	30	30
	Mean launched power
	Maximum mean launched power	dBm	–30	0	3	3
	Minimum mean launched power	dBm	–10	–5	–2	–2
	Minimum extinction ratio	dB	8.2	8.2	8.2	8.2
	Attenuation range	dB	0–7	0–12	10–24	10–24
	Maximum dispersion	ps/nm	12	NA	NA	1200-1600
	Minimum optical return loss of cable plant at S, including any connectors	dB	24	24	24	24
	Maximum discrete reflectance between S and R	dB	–27	–27	–27	–27
Receiver at reference point R	Minimum sensitivity	dBm	–18	–18	–27	–28
	Minimum overload	dBm	–30	0	–9	–9
	Maximum optical path penalty	dB	1	1	1	2
	Maximum reflectance of receiver, measured at R	dB	–27	–27	–27	–27

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