Zte ZXA10 S300 - Page 51

Chapter 2 Technical Indexes
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Table 15 lists the requirements of receiving of the 1000-
BaseSX interface.
TABLE 15 − RECEIVING REQUIREMENTS OF 1000-BASESX INTERFACE
Item
62.5 μmMMF 50 μmMMF
Unit
Signaling rate (range)
1.25 ± 100 ppm
GBd
Wavelength (λ ?, range): 770 ∼ 860
nm
Mean optical receiving power
(maximum)
0 dBm
Receiving sensitivity -17 dBm
Return loss (minimum) 12 dB
Enhanced receiving sensitivity
(maximum)
-12.5 -13.5 dBm
Vertical eye pattern close cost 2.60 2.20 dB
3 dB high-end cutoff frequency of
electrical receiving signal
(maximum)
1,500 MHz
 10Base-TX Interface
Table 16 describes the use scope of the 1000Base-LX
interface.
TABLE 16 − USE SCOPE OF 1000BASE-LX INTERFACE
Fiber Type
Module Width @ 850 nm (minimum
full load) (MHzkm)
Minimum Scope
(m)
62.5μmMMF
500 2 ~ 550
50μmMMF
400 2 ~ 550
50μmMMF
500 2 ~ 550
10μmMMF
N/A 2 ~ 5000
Table 17 lists the optical transmitting power of the
1000Base-LX interface.
TABLE 17 − OPTICAL TRANSMITTING POWER OF 1000BASE-L X INTERFACE
Item
62.5 μmMMF
50 μmMMF 10 μmSMF
Unit
Signaling rate (range)
1.25 ± 100ppm
GBd
Wavelength (λ ?,
range):
1,270 ~ 1,355 nm
Trise/Tfall (maximum,
20% ~ 80%,λ? > 830
nm)
0.26 ns
RMS spectral width 4 nm