Why use EPON and GPON? Analysis on the network cost of m in villages

I will not go into details about the advantages of EPON and GPON. The main points are as follows:

1. Saving money. This is an absolute principle.

2. high bandwidth, with a bandwidth of 1 to 25 GB

3. High Reliability. Optical splitter can be used in the middle, and no switch is required.

Why do I save money by using EPON?

PreviousArticleLet's talk about saving optical fiber for the moment. Let's talk about this transceiver.

The price of a 1-to-600 M Transceiver must be around 800 yuan. With a 1000 m switch, the cost is at least-. This is a node.

In a pon-based network, because the uplink port is 300 m, its network also occupies the backbone of M. The cost of a new PON-based four-port device is more.

You say this saves money? How much is saved if there are 20 backbone switches? 20*700 = 1400, which is only the price saved by 20 ONU.

The above only talked about the price of the transceiver. Generally, many people in the village follow the V, while EPON only needs to get the power at the end. I believe the distance between the two switches is generally about 80 m, at this time, the better phone number will be more than 100. If EPON is used, the cost of the electric meter is about 30 when the end is powered, and V is not required to be followed to avoid danger, I believe that once this kind of danger happens, you will surely be able to leave it alone.

 

Reliability? As we all know, EPON uses Passive Optical splitting in the middle, which means no switch is needed in the middle. Therefore, all switches communicate directly with the OLT, so all ONU is a level-1 switch, what, the traffic cannot run, and so on. It's just a float cloud.

For general-level connected switches, generally more than six levels, the traffic of the subsequent switches often fails, and there is no traffic when the user measures the speed, and there are many faults, if the switch in front is powered off or broken, the users in the backend will not be able to access the network. The answer to the phone is terrible, and it often appears and has a bad reputation.

Another point is the pure backbone light path and lightning protection.

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