How to wire the telecom optical modem? Check each port in the back row carefully; if the IPTV port is plugged into a computer and no network is damaged,

last month while organizing the weak current box, I unplugged all the wires from the optical modem. After wiping the dust and about to reattach it, he held a handful of network cables and stood there stunned for half a minute—which cable was originally plugged in where? In the end, it was the photo I casually took before construction that saved me. While my memory is still warm, I recognize each batch clearly. Next time anyone moves and reconnects it, or if the craftsman wants to check it after installation, they can copy it carefully.

first recognize the entire row: different appearances mean different duties

the cats sent by Telecom for maintenance have at least six or seven mouths behind the scenes. Don't be fooled by the numbers—categorize them by appearance. I placed my ZTE unit side by side with my cousin's Huawei, and the rules were basically the same: the thinnest and most valuable is the fiber optic port, the widest and most commonly used is the network port, the narrowest ring is the telephone port, and the power and reset ports each occupy one corner.

Whether you

or have a few bites, it depends on the model and the package. The cats I've handled include minimalist models with two ports and fully equipped models with four ports and IPTV. The installation and maintenance are based on your plan—the more expensive the port, the more you choose. For identifying ports, first check the silkscreen print, then the width; color is only a reference—the blue and yellow port is a router routine, but the cat doesn't work well. Which carrier uses a gigabit port, what are the differences in silkscreen writing, and how do you distinguish between gigabit and hundred-gigabit ports That article is detailed. Just remember: for telecom centralized procurement, the cat usually only has one network port for quick purchases. Good steel is where it matters most.

the three most easily inserted slots, I myself have been hit by one

first pitfall: treating the IPTV port as a regular port. After organizing the weak current boxes for a few days, I thought I'd give the old laptop in the study a port for free, plug the network cable into the IP TV port, but after waiting a long time, it automatically got an IP and got an address starting with 169.254, and I couldn't open a single webpage. This isn't because the cat is broken. The IPTV port channel and the network channel are separate, so ordinary devices can't get the internet when plugged in. That's the design. Interestingly, each cat has its own temper—when a colleague moved, he plugged the network cable into the IPTV port and it still ran 93MB, which shows his unit's binding wasn't fully soldered. So if you plug in and there's no internet, switch to port 1 before speaking. Don't rush to call number 10000.

second pitfall: plug the set-top box into a standard 100M port. When the TV was moved during renovation, the technician casually plugged the set-top box's network cable into the adjacent port 2, but the screen got stuck on the logo and wouldn't go in. Set-top boxes should prioritize identifying the IPTV port with the silkscreen. If you plug in another port and the screen goes black or starts up, you have to reconnect to the ONT side. fix the IPTV signal after fixing the bridge that article has a complete check. My homemade remedy is even simpler: stick a label on the TV cable and don't let anyone touch it.

Third pitfall: mixing the TEL port with the network port. The transistor connector of a telephone cable is a circle narrower than the network cable, so it can crookedly fit into the middle of the network port, just enough for use. On the other hand, if the network cable connector tries to get into the TEL port, no matter how hard you try, you can't get in. So when you encounter a "can't plug in" situation, don't use brute force. First, check if you've found the wrong port—find the right location for the landline, and connect landline is a different rule and has nothing to do with internet access.

reconnect a new PC and move a new unit, repeat this sequence once more

order is important, with the core being one thing: photovoltaic first, then electric, wait for registration, then install equipment. Don't blindly jump in and guess where each one is off.

• Step one: insert the leather cable into the PON port. Remove the dust cap, aim at the groove and gently push it all the way down. When you hear a soft sound, it's in place—don't twist or pry. The bending radius of the fiber should not be less than 5 centimeters; if a dead bend is broken, the light degradation should immediately be removed. Step
• two: plug in the power and turn on, waiting for the PON light to change from slow flashing to steady on. This step can take anywhere from a minute to three to five minutes. It's like the cat is in the data center setting the code, and the problem is PON the registration can't be all the time. When it flashes, just wait patiently.
• Step 3, connect the router's WAN port to the optical modem port 1 with a network cable. Whether you use the optical modem dialing or the bridge router dialing up, this cable always runs through network port 1, leaving the fast port for the main incoming line.
• Step four: Connect the set-top box to the IPTV port. Step five: Plug the landline phone line into the TEL port. After all the connections, don't rush to untie up. First, check two things: check the backend to record the receiving optical power, then run a speed test. Only when the gigabit broadband cable shows around 940 is the connection correct.

a reminder for families who have switched to bridges: keep the router's cable running the network port 1 without moving, and don't move the set-top box's cable randomly—IPTV channel binding is written according to the interface, and moving the port means the code doesn't match. Also, the phone line on the phone port is most likely to leak when reconnected. Only after realizing the landline was dead did I realize it was probably because this cable wasn't plugged back in.

the day the technician finished connecting the cables, I suggest you take a photo of the back of the cat with your phone and save it in your album, then label each cable. This is the lesson I learned in night organizing the weak current box: photos are ten times more reliable than memories. On the day of installation, which other items should be inspected? Master said that if you can get online you want to go. He listed five items and went through them accordingly.

two fun facts: USB ports and power switch

Some older cats even have a USB port on the back, so don't get your hopes up. Firmware purchased by carriers has been thoroughly trimmed out for USB storage functions, and when plugged into USB drives, there is no response at all. Some batches don't even solder the circuitry on the back, leaving only a socket. It's not that your cat is broken, it's that they never let you drive. If you really want to plug in a USB drive and attach a hard drive, it's more practical to leave the work to the router. What can the router's USB port do that article reviewed how to use it.

two details on the power supply side. First, make sure the round-port adapter is 12V 1A. power supply ages and light degradation is unpredictable I measured in that article, and when the load voltage drops, all sorts of strange issues appear. Don't replace it with other chargers. Second, some cats have a power switch on their backs, so before moving and packing boxes, pressing the plug is easier than unplugging; The reset pinhole is close to the switch, so don't poke the pin in the wrong spot. accidentally pressed reset, it took me three hours to get it back night. Here's my lesson.

mouths are either insufficient or damaged, each has its own tricks

insufficient network ports are the most common. Even if a device with 100M is sufficient for other network ports, plugging the network cables into the printer and smart devices is almost impossible; If you want to fill up all the ports in one row, just a few dozen yuan plus a switch hanging below port 1 turns eight ports into a dozen or so ports. how to choose and connect a home switch I've written a complete guide. I happen to have a replacement old optical modem at home. Turning off DHCP works just like a pure switch. how to allocate the four ports of the old optical modem there's a table to copy.

broken mouth comes in two types. If IPTV or 100Mbps ports are broken, you can just bypass them, and the loss is minimal; The problem was port 1: the router's WAN port light wouldn't turn on and the cable speed wouldn't increase. Don't try it yourself—it's a hardware issue. After ruling out the previous optical power supply self-check, I immediately reported a fault and switched to the modem. If you want to install an extra router under the optical modem, there are some important wiring methods. broadband can only dial once that article breaks down the three connection methods.

finish with a general order: first identify the silkscreen before plugging in the cable, first fiber before power, wait for PON to stay on before attaching the router, set the set-top box to the IPTV port, connect all to the speed test 940, and record the light degradation baseline. Next time, whether you move and reconnect yourself, or help your parents remotely direct and connect the wires, just dig through this article and follow it through the process—it takes ten minutes.