What is the difference between Class B+ C+ and C++ GPON SFP Module?
The main difference is the output optical power. Class C++ GPON SFP module output optical power is about 7dBm, the Class C+ GPON SFP module output optical power is about 5dBm. Of course, their optical receiver sensitivity is also different. The Class C++ optical receiver sensitivity is best.
The detail specification parameter table comparision as below:
|
Type |
Class B+ GPON SFP module |
Class C+ GPON SFP module |
Class C++ GPON SFP module |
|
wavelength |
Tx：1490nm |
Tx：1490nm |
Tx：1490nm |
|
Rx：1310nm |
Rx：1310nm |
Rx：1310nm |
|
|
rate |
Tx：2.488Gbit/s |
Tx：2.488Gbit/s |
Tx：2.488Gbit/s |
|
Rx：1.244Gbit/s |
Rx：1.244Gbit/s |
Rx：1.244Gbit/s |
|
|
Mini Output Power |
1.5dBm |
3dBm |
6dBm |
|
Mini Output Power |
5dBm |
7dBm |
10dBm |
|
Optical Receiver Sensitivity |
-28dBm |
-32dBm |
-35dBm |
|
Optical Connector |
SC |
SC |
SC |
|
Fiber type |
Single mode |
Single mode |
Single mode |
|
Receiver Overload |
-8dBm |
-8 dBm |
-15dBm |
|
Extinction Ratio |
10dB |
10dB |
8.2dB |
