Application
1000BASE-SX
Average launch power (max)
-1.1 dBm (Class 1 safety limit as defined by
IEEE 802.3–2000 Clause 38.7.2)
Average launch power (min)
–9.5 dBm
Average launch power of OFF transmitter (max)
–30 dBm
Extinction ratio (min)
9 dB
RIN (max)
–117 dB/Hz
Mask of the eye diagram of the optical transmit signal
see IEEE802.3
Receive Characteristics
Average receive power (max)
0 dBm
Receive sensitivity (min) at BER = 1 × 10
-12
–17 dBm
Return loss (min)
12 dB
Stressed receive sensitivity
(measured with conformance test signal at TP3 for BER =
10–12 at the eye center)
–12.5 dBm (62.5 µm MMF)
–13.5 dBm (50 µm MMF)
The following table lists the worst-case power budget and link penalties for a
1000BASE-SX pluggable optic. Link penalties are used for link budget calculations.
Description
Unit
62.5 µm
MMF
50 µm MMF
Modal bandwidth as measured at
850 nm (minimum, overfilled
launch)
MHz ×
km
160
200
400
500
Link power budget
dB
7.5
7.5
7.5
7.5
Operating distance
m
220
275
500
550
Channel insertion loss (a
wavelength of 830 nm is used to
calculate the values)
dB
2.38
2.60
3.37
3.56
Link power penalties (a
wavelength of 830 nm is used to
calculate the values)
dB
4.27
4.29
4.07
3.57
Unallocated margin in link power
budget (a wavelength of 830 nm
is used to calculate the values)
dB
0.84
0.60
0.05
0.37
1000BASE-LX SFP
The following table lists the specific optical characteristics for a 1000BASE-LX
pluggable optic.
The 1000BASE-LX pluggable optic uses a Low Power Laser (laser class 1/1 according
to FDA/CDRH - 21 CFR 1010 & 1040 / IEC 60825). The 1000BASE-LX pluggable
Product description
System specifications
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Lucent Technologies - Proprietary
See notice on first page
365-312-847R4.0
Issue 4, November 2006