Fiber optic cat normal light which several lights

1, in order to facilitate the location of the problem, the optical cat's firmware will be defined by a number of indicators, when a specific indicator changes, you can use the indicator to determine whether the device and the network is faulty. Here are some common indicator lights of the optical cat and their meanings, we do a reference. Unicom fiber optic cats are normally 3 green lights are always on, respectively power light, pon light, lan1 light or lan2 light

Power power light: normal reflective light is always on.

PON is the data light: normal is always on, such as flashing for fault.

LOS indicator: red light is lighted for optical path interruption.

LAN1 indicator: used for broadband Internet access, connected to a computer or router indicator light is always on or blinking for normal connection. If the light is not on, please check your own network (e.g., broken cable, unplugged crystal head, faulty computer network card, faulty router).

LAN2 indicator: Used to connect to the Unicom TV set-top box indicator, always on or blinking is normal. Please check whether the network cable connection is normal or not. The crystal head is loose. Unconnected telephone set indicator is blinking.

PHONE indicator: Landline indicator. Pick up the telephone set indicator light is always on,

2, and then look at the wireless router, the light is normal

The first light is on: that the router is working normally.

The second to fifth lights are on: indicates that there is a computer connected to this router.

The sixth light is on: indicates that this router is connected to the Internet.

3, test whether the router is connected to the Internet

TP-Link Wireless Router Usage: Use a network cable to connect the LAN port of the wireless router to the computer (smart phones can also be connected to the wireless login 192.168.1.1) In the browser address bar, enter 192.168.1.1, and enter the user name and password (the default is admin). After entering the router management interface, look at the status of the WAN port, the picture shows that it is connected to the Internet. If you still can't get to the Internet, restart the router or disconnect and reconnect, and if you still can't connect, call for repair.

Note:

For Unicom Fiber Optic Cats, there are 3 green lights that are always on: the power light, the pon light, and the lan1 light or lan2 light.

power light indicates that the fiber optic cat is powered on normally (on the other hand, if it does not light up, the fiber optic cat is not powered on, check the power supply port, or change a transformer to try)

pon, etc. light indicates that there is already a data transmission, indicating that it is already connected to the Internet, or there is no network, then, suspected that the problem of the wireless router.

lan port light indicates that there is a computer or other device connected with a cable.

The los light is on, which means there is no light signal. In this case, please report it for repair.

Related Reading: Key Points for Router Security Features

As the router is a more critical device in the network, for the various security risks that exist in the network, the router must have the following security features:

(1) Reliability and Line Safety Reliability requirements are for fault recovery and load capacity. For the router, reliability is mainly reflected in the interface failure and network traffic increase in two cases, for this reason, backup is one of the indispensable means of the router. When the main interface fails, the backup interface automatically goes into operation to ensure the normal operation of the network. When network traffic increases, the backup interface can take on the task of load sharing.

(2) Authentication The authentication in the router mainly includes the authentication when accessing the router, the authentication of the peer router, and the authentication of the routing information.

(3) Access control For access control in the router, hierarchical protection of passwords is required. There are IP address-based access control and user-based access control.

(4) Information hiding When communicating with the other end, it is not always necessary to communicate with the real identity. Through address translation, it is possible to do to hide the address within the network and access the external network only as a public **** address. Except for connections initiated first by the internal network, off-network users cannot directly access on-net resources through address translation.

(5) Data encryption

In order to avoid information leakage due to data eavesdropping, it is necessary to encrypt the transmitted information so that only the other end of the communication can decrypt the ciphertext. By encrypting the messages sent by the router, the privacy, integrity, and authenticity of the data can be guaranteed, even when transmitted over the Internet.

(6) Attack Detection and Prevention

As an interface device to an internal network, a router is the first target for an attacker to enter the internal network. If the router does not provide attack detection and prevention, it is also a bridge for attackers to enter the internal network. Providing attack detection on the router prevents some of these attacks.

(7) Security Management