Application
I-16
S-16.1
L-16.1
L-16.2
Max. discrete reflectance
–27 dB
-27 dB
–27 dB
–27 dB
Minimum optical return loss
of the cable plant at point S
including the optical
connector
24 dB
24 dB
24 dB
24 dB
Receiver at reference point R
Min. optical sensivity (BER
= 1 × 10
-10
)
–18 dBm
–18 dBm
–27 dBm
–28 dBm
Min. optical sensivity (BER
= 1 × 10
-12
)
–17 dBm
–17 dBm
–26 dBm
–27 dBm
Max. optical path penalty
1 dB
1 dB
1 dB
2 dB
Overload (min.)
–3 dBm
0 dBm
–9 dBm
–9 dBm
Min. return loss at receiver,
measured at R
27 dB
27 dB
27 dB
27 dB
1000BASE-SX SFP
The characteristics of the 1000BASE-SX SFP are summarized in the table below.
The 1000BASE-SX pluggable optic (850 nm short haul, multi-mode) uses a Low
Power Laser (laser class 1/1 according to FDA/CDRH - 21 CFR 1010 & 1040 / IEC
60825). The 1000BASE-SX pluggable optic complies with IEEE 802.3-2000 Clause
38. The following table describes the various operating ranges for the 1000BASE-SX
pluggable optic over each optical fiber type.
Fiber Type
Modal Bandwidth @ 850 nm (min.
overfilled launch) (MHz x km)
Minimum range (m)
62.5 µm MMF
160
2 ... 220
62.5 µm MMF
200
2 ... 275
50 µm MMF
400
2 ... 500
50 µm MMF
500
2 ... 550
The following table lists the specific optical characteristics for a 1000BASE-SX
pluggable optic.
Application
1000BASE-SX
Bit rate
1.25Gb/s +/-100ppm
Operating wavelength range
770 - 860 nm
Transmitter characteristics
Transmitter type
Shortwave Laser
T
rise
/T
fall
(max, 20–80%,
λ
> 830 nm)
0.26 ns
T
rise
/T
fall
(max, 20–80%,
λ ≤
830 nm)
0.21 ns
RMS spectral width (max)
0.85 nm
Product description
System specifications
....................................................................................................................................................................................................................................
365-312-847R4.0
Issue 4, November 2006
Lucent Technologies - Proprietary
See notice on first page
2-35
