Is it a computer problem that the ONU receiver light power is lower than the light receiver sensitiv

It has nothing to do with the computer.

ONU (Optical Network Unit) optical node. ONU is divided into active optical network unit and passive optical network unit. Generally, the equipment equipped with network monitoring including optical receivers, uplink optical transmitters, and multiple bridge amplifiers is called optical nodes.

Key features: 1. Choose to receive the broadcast data sent by the OLT;

2. Respond to the ranging and power control commands issued by the OLT; and make adjustments accordingly;

3. Cache the user's Ethernet data and send it in the uplink direction in the sending window allocated by the OLT.

Fully IEEE compliant

Reception sensitivity is up to.

Transmit power up to -1 to +4dBm

PON uses a single fiber to connect to the OLT, and then the OLT connects to services such as providing data, IPTV (i.e., interactive network TV), voice (using IAD, i.e., Integrated Access Device), etc., to truly realize the "triple-play" application.

ONU "plug and play" based on automatic discovery and configuration

Advanced Quality of Service (QoS) features based on Service Level Agreement (SLA) billing.

Remote management capabilities supported by rich and powerful OAM functions.

High sensitivity optical reception and low input optical power consumption.

Support dying gasp function.

It has nothing to do with the computer.

Trouble, thanks!

Check whether the light received at the splitter is normal, and check the splitter to the ONU pigtail normally. Check whether the olt-pon port glow is normal, check the attenuation is too large, and rectify...

The light received by the ONU is so low that the ONU cannot register with the OLT.

The LOS light flashes all the time, which is a warning sign that the receiving optical power is too low. Please check if there is a problem with the fiber line.

Usually this situation may be caused by poor fiber quality (too much bending in one place or dust on the fiber head) or too far away, and another may be the aging of the OLT side optical module, or the luminous intensity is not enough.

The transmit optical power of an OLT is generally between +2 and +7 dBm, and the received optical power of an OLT is between -27 and -6 dBm.

The transmit optical power of the ONU is generally between -1 and +4 dBm, and the received optical power of the ONU is about -24 dBm.

(ONU transmits optical power - ONU receives optical power) and (ONU transmits optical power - OLT receives optical power), whichever is the smallest. This value should be positive. So it should be.

Downlink = Olt's transmit optical power is.

ONU received optical power is.

Uplink = The transmit optical power of the ONU is.

The OLT receives optical power is, ==

GPON's roughly follows:

OLT, ONU luminous power: 0-5dBm

OLT and ONU receiving range: -27-8dB