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Transceiver upgrade

Transceiver upgrade

Created: Sep 2, 2020 13:06:22Latest reply: Sep 3, 2020 01:24:13 460 5 0 0 0
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Hi, if I were to give 10Mbps per customer and if I have a 1.25G sfp transceiver then theoretically and practically how many customers can I have without any bandwidth congestion?  Thanks!

SFP

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Chenxintao
Admin Created Sep 3, 2020 01:24:13

Hello, friend!


The upstream rate of GPON is 1.25 Gbit/s and the downstream rate is 2.5 Gbit/s. If you want to provide 10 Mbit/s bandwidth for each user, check whether the 10 Mbit/s bandwidth is upstream or downstream.


The upstream bandwidth is 1.25 Gbit/s. However, each ONT consumes not only the fixed bandwidth required by the ONT, but also other gaps for management.


Therefore, you need to synchronize the specific network planning solution,
Generally, the number of users to be planned is determined based on the actual situation.


Thanks!

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user_3754066
user_3754066 Created Sep 3, 2020 04:26:39 (0) (0)
Is there any documentation on planning?  
Chenxintao
Chenxintao Reply user_3754066  Created Sep 3, 2020 06:12:31 (0) (0)
The 1.25 Gbit/s SFP transceiver you consult is an optical module. For more information, visit the following link:https://support.huawei.com/hedex/hdx.do?lib=EDOC110011309531180BJW&docid=EDOC1100113095&lang=en&v=02&tocLib=EDOC110011309531180BJW&tocV=02&id=EN-US_CONCEPT_0140688481&tocURL=resources%252fhw%252fcomm%252fpon%255foptical%255ftransceiver%252ehtml&p=t&fe=1&ui=3&keyword=pon  
Chenxintao
Chenxintao Reply user_3754066  Created Sep 3, 2020 06:30:30 (0) (0)
In addition, you need to check the type of the optical module, which is class B+ class C class C++.
Class B+: 28 dB, most commonly used
Class C+: 32 dB, long-distance transmission
CLASS C++:35dB
Maximum split ratio:
Class B+: 1:64
Class C+/ C++: 1:128  
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chenhui
chenhui Admin Created Sep 2, 2020 13:10:28

Hi,
Theoretically, if the no packets dropping considered, up to 1.25*1024/10=128, I think.
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Chenxintao
Chenxintao Admin Created Sep 3, 2020 01:24:13

Hello, friend!


The upstream rate of GPON is 1.25 Gbit/s and the downstream rate is 2.5 Gbit/s. If you want to provide 10 Mbit/s bandwidth for each user, check whether the 10 Mbit/s bandwidth is upstream or downstream.


The upstream bandwidth is 1.25 Gbit/s. However, each ONT consumes not only the fixed bandwidth required by the ONT, but also other gaps for management.


Therefore, you need to synchronize the specific network planning solution,
Generally, the number of users to be planned is determined based on the actual situation.


Thanks!

View more
  • x
  • convention：

user_3754066
user_3754066 Created Sep 3, 2020 04:26:39 (0) (0)
Is there any documentation on planning?  
Chenxintao
Chenxintao Reply user_3754066  Created Sep 3, 2020 06:12:31 (0) (0)
The 1.25 Gbit/s SFP transceiver you consult is an optical module. For more information, visit the following link:https://support.huawei.com/hedex/hdx.do?lib=EDOC110011309531180BJW&docid=EDOC1100113095&lang=en&v=02&tocLib=EDOC110011309531180BJW&tocV=02&id=EN-US_CONCEPT_0140688481&tocURL=resources%252fhw%252fcomm%252fpon%255foptical%255ftransceiver%252ehtml&p=t&fe=1&ui=3&keyword=pon  
Chenxintao
Chenxintao Reply user_3754066  Created Sep 3, 2020 06:30:30 (0) (0)
In addition, you need to check the type of the optical module, which is class B+ class C class C++.
Class B+: 28 dB, most commonly used
Class C+: 32 dB, long-distance transmission
CLASS C++:35dB
Maximum split ratio:
Class B+: 1:64
Class C+/ C++: 1:128  
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