User's Manual

XGS-PON FGW User Manual
31
General Specifications
Q_PPS_DM_018_V1.3
3 General Specifications
3.1 Optical Interfaces
3.1.1 10GE BASE-X interfaces
These interfaces (for models SXRxxxxX) are deployed in the form of optical SFP+ 10GBASE-LR/LW
transceivers which use LC/PC connectors and have the following characteristics
Table 3-1 - Optical 10Gbase interfaces characteristics
10GBASE-LR/LW (10 km)
Item
Unit
Laser type emitter
-
SLM (DFB)
Operation
nm
1260 to 1355
Wave length typ.
nm
1310
Spectral width Max.
nm
NA
Min SMSR
dB
30
Tolerated dispersion Max.
ps/nm
NA
Emission Power Max/min
dBm
0.5 / -8.2
Min Extinction Ratio
dB
3.5
Receiver Type
-
PIN
Attenuation Range
dB
NA
Sensibility
BER < 10
-10
dBm
-12.6
Receiver Saturation
dBm
-1
Max. Penalization per optical course
dB
1
Protection against Cuts
-
Automatic Laser Shut Down
According to Recommendations
-
(IEEE 802.3, Clause 49, 50 and 52)
3.1.2 XGS-PON optical interfaces
The XGS-PON Fiber Gateway PON interface as ITU-T rec. G.9807.1 uses an SC/APC protected optical
connector and has the following characteristics
Table 2: XGS-PON Interfaces Specification: XGS –PON Fiber Gateway transceivers
Items
Unit
Maximum fibre distance between S/R and R/S points
Km
DD20: 20
Fiber Gateway Tx
Nominal line rate
Gbps
9.95328