System specifications
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Optical Interfaces/SFPs
STM-1
The table below lists some parameters and the end of life power budgets for the fixed
STM-1 optical interfaces that are supported by the 1643 AM and STM-1 SFP cages
that are supported by the 1643 AMS:
Application S-1.1 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 (aggregate only)
-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
Note: 1643 AM STM-1 (Aggregate and tributary) or STM-4 optical access is via an
SC-type connector. Adaptors FC and ST are also supplied.
1643 AMS: All optical interfaces are available as SFPs (Small Form-Factor Pluggable
Optics) for STM-1 transmission only.
Note that the 1643 AM supports S1.1 and L1.2 interfaces for STM-1 transmission,
whereas, the 1643 AMS only supports S1.1, L1.1, and L1.2 SFPs. The 1643 AMS does
not support STM-4 transmission.
Technical Specifications
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10-2
Alcatel-Lucent - Proprietary
See notice on first page
365-312-801R7.2
Issue 3, May 2007