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FiberGateway User Manual
34
General Specifications
Items
Unit
B+
C+
Minimum sensitivity
dBm
-27
-30
(1)
Minimum overload
dBm
-8
-8
(2)
Upstream optical penalty
dB
0.5
0.5
Consecutive identical digit
immunity
bit
>72
>72
Tolerance to reflected optical
power
dB
<10
<10
3.1.2
Ethernet
Ethernet is the wired LAN technology and is revised in the IEEE 802.3 standard. At the OSI reference
system, Ethernet is at the Data Link layer. In the FiberGateway equipment the LAN type of physical
interfaces is 10/100/1000BASE-T AUTO-MIX Ethernet type over RJ45 connectors.
1
ONT RX= -8~-30 dBm (The equipment sensitivity assumes the use of the optional RS (255,239) FEC capability of the G-PON
TC layer with the current class B+ ONU detector technology; The ONU overload is set at
–8 dBm to be common with the class
B+ value, even though in this application
–10 dBm is sufficient).
Optical solution: B+ and C+.
Connector type: SC/APC.
IEC 60825-1: "Class 1 Laser Product''.
The B+ and C+ diplexer is embedded on the FiberGateway equipment version.
ONU Single Fiber - G.984.2 (03/2003) + G.984.2 Amd 1 (02/2006) and 2 (03/2008), G.983.3 (03/2001).
Optical Metering
– G.984.2 Amd 2 Table IV.1/G.984.2 – Optical Line Supervision related measurement specifications (the
accuracy of the measurement is +/-3dBm maximum).
2
ditto
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