What is light cat
Optical modem refers to "optical modem", also known as "single-port optical terminal". It is a three-piece set of optical fiber transmission equipment developed for special user environments; the equipment uses large-scale integrated chips , simple circuit, low power consumption, high reliability, complete alarm status indication and complete network management functions.
#The operating environment of this tutorial: Windows 10 system, Dell G3 computer.
What is an optical modem?
Optical modem, also known as a single-port optical transceiver or optical modem, is a three-piece set developed for special user environments fiber optic transmission equipment. The device uses large-scale integrated chips with simple circuit, low power consumption, high reliability, complete alarm status indication and complete network management functions.
Optical cat
Optical cat is also called a single-port optical transceiver. It is a product designed for special user environments. It uses a pair of optical fibers to carry out single E1 or single V .35 or single 10BaseT point-to-point optical transmission terminal equipment. As the relay transmission equipment of the local network, this equipment is suitable for the optical fiber terminal transmission equipment of the base station and the leased line equipment. Multi-port optical transceivers are generally called "optical transceivers". Single-port optical transceivers are generally used at the user end and work similarly to the baseband MODEM commonly used for WAN dedicated line (circuit) networking. Optical Modem".
There are E1 optical modems, Ethernet optical modes, and V35 optical transceivers, which are configured with corresponding business interfaces according to customer needs. E1 optical modems transmit E1 signals through optical fibers, and Ethernet optical modes transmit through optical fibers. 2M Ethernet signal, V35 optical modem transmits V35 signal through optical fiber. Optical modem is a device similar to a baseband MODEM (digital modem). The difference from the baseband MODEM is that it is connected to an optical fiber dedicated line and is an optical signal. It is connected to the router after converting the photoelectric signal and the interface protocol. It is a type of wide area network access, which is often referred to as optical fiber access. As long as there is an optical fiber, an optical modem is required to convert the optical signal.
Working Principle
Optical modem equipment adopts large-scale integrated chips, with simple circuit, low power consumption, high reliability, complete alarm status indication and complete Network management function.
Optical modem is a device similar to a baseband modem (digital modem). The difference from the baseband modem is that it is connected to an optical fiber dedicated line, which is an optical signal. It is used for the conversion of photoelectric signals and interface protocol conversion in the WAN. The access router is a WAN access. The photoelectric transceiver uses the conversion of photoelectric signals in the local area network, but only the signal conversion, without the conversion of the interface protocol.
Application scope
Speaking of Ethernet optical modem alone, it is mainly used for distances exceeding 20KM, and requires SDH/PDH, etc. In the case of optical transmission equipment relay. Generally speaking, the speed of the optical modem is packaged on the 2M circuit, so the difference between the optical transceiver of the optical modem is also its speed. The optical modem is 2M, and the optical transceiver is 100M.
General application scenarios:
Customer-Ethernet optical cat-optical cable-E1 optical cat-2M cable-Office SDH optical transceiver-Another office SDH optical transceiver-PDH Optical transceiver-E1 to Ethernet protocol conversion-customer equipment (Ethernet switch or computer, etc.). Of course, there are also V.35 optical cats, V.24 optical cats, RS-232 optical cats, etc.
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How to connect the optical modem to the wireless router: 1. Connect the LAN port of the optical modem to the WLAN port of the router; 2. Use a toothpick or needle to poke the reset button of the router; 3. There is usually a management page on the back of the router, such as The one on the router is tplolgin.cn. Enter this address in the browser. If it does not exist, enter 192.168.1.1. This is the default address of the router. 4. Enter the management page. You will first be asked to set the administrator password. Set it up. You can enter the router settings and so on.

Optical modem refers to "optical modem", also known as "single-port optical terminal". It is a three-piece optical fiber transmission equipment developed for special user environments. This equipment uses large-scale integrated chips, with simple circuits and low power consumption. Low, high reliability, complete alarm status indication and complete network management functions.

The optical modem should be connected to the router first, and then the router is connected to the switch. By connecting the optical modem to the router, network management can be effectively achieved and ensure that multiple devices can enjoy Internet access and internal LAN connections at the same time.

The differences between routers and cats: 1. Cats communicate with the Internet service provider's network, while routers share network connections to multiple devices; 2. Cats have a relatively simple appearance, while routers come in various shapes; 3. Cats are A necessary device for computer networking, and a router is a device that helps multiple computers share a network; 4. One end of the cat is connected to the phone line, one end is connected to the computer or router, and one end of the router is connected to the cat, and the other end can only be connected Computer; 5. The cat has only two ports, one is connected to the phone line and the other is connected to the network cable, while the router has more ports.

The difference between a router and an optical modem is: 1. The optical modem only converts optical signals into digital signals, while the router is responsible for managing network traffic and data transmission; 2. The router is mainly used to manage network traffic and data transmission, and can connect multiple devices and Establishing connections between different networks, while cats are mainly used to convert digital signals into analog signals so that computers can connect to the Internet.

The flashing pon light on the optical modem means that the optical modem is trying to establish a network connection. The PON light is a registration indicator light used to indicate whether the optical modem has successfully registered and established a connection. When the PON light flashes, it means that the optical modem is trying to establish a connection. This is usually because the line or equipment is faulty, causing the optical modem to be unable to establish a connection with the gateway. You need to check whether the indoor line connection is correct and whether there is any bending angle that is too large. wiring, and whether there are any loose connectors. If the line connection is normal, you can try to restart the optical modem and gateway to restore the network connection.

It is not recommended to use the optical modem that comes with broadband due to limited functions, stability and performance, security, scalability, etc. Detailed introduction: 1. Limited functions: Optical modems that come with broadband usually only provide basic network connection functions and lack advanced functions and configuration options. For example, they may not support advanced network security settings, port forwarding, load balancing and other functions, which may limit flexibility in network settings and management; 2. Stability and performance: The optical modem that comes with broadband may be unstable There are some issues with stability and performance, not being able to handle heavy network traffic or multiple device connections, etc.

The optical modem keeps flashing green light and there is no network solution: 1. Optical mode connection problem, check whether the optical fiber cable is correctly connected to the optical modem and the optical fiber access point; 2. Optical mode setting problem, try to restart the optical modem, press the restart button on the back of the optical modem button and wait for a while before opening it; 3. For broadband account problems, contact the broadband service provider to verify the account status and ensure that the account is activated; 4. For broadband service failures, contact the broadband service provider to confirm whether there is a broadband service interruption or failure; 5. If the optical modem hardware fails, contact the broadband service provider to replace the optical modem or repair the hardware failure.