Questions tagged [router]

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Home Router - How do routers use multiple antennas and MU-MIMO?

I have few practical questions regarding classic home routers like TP-Link Archer C2 or modern AX10. I welcome longer explanations if it's necessary. Which type of antennas do home routers use? Are ...
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1answer
145 views

Relay not switching immediately if mains off to battery like UPS

Relay not switching immediately if mains off to battery like as backup power. I'm looking for zero cross SPDT relay switching for my project. please help. design is simple two power sources (mains and ...
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2answers
75 views

LED indicators intensity standards

I am trying to find any resources on the LED parameters (i.e. preferred intensity and luminosity ranges) that are used as indicators in various home appliances, such as Networked devices (i.e. routers)...
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1answer
73 views

Will this DC UPS with off the shelf components for home network and laptop work?

I am trying to build a DC UPS to power modem, router which have power requirements of 12V 2A and a laptop which has power requirement of a 20V 3.5A. I am planning to use a AC to DC SMPS which is ...
0
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1answer
73 views

How does a router send different data to different devices simultaneously?

How does a WiFi router send different data to different devices at the same time? Since all devices connected to it pick up the same signal being emanated by the router, how do they get the data meant ...
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1answer
46 views

What will happen, in my router, if I connect 9V, 0.85A Power adapter to a 12V, 1 A adapter slot? [closed]

I have NETLINK HG323RGW GPON ONT Router, it uses 12V,1A, AC-DC power adaptor. ( Power consumption ≤9W ) I also have TPLINK ADSL Router which uses 9V, 0.85A power Adapter. ( https://www.tp-link.com/...
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1answer
54 views

How are LAN routers, WAN routers and eNodeBs connected to each other (TCP/IP)? [closed]

I'm new to telecommunication, and from what I understand, an user equipement is either connected to a LAN router or an eNodeB, and a LAN router is connected to a WAN router, and routers send the ...
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1answer
38 views

High bulk capacitance (100.000 uF) discharge time on Wifi router supply

I want a WiFi router, those supplied with 12V x 1~1.5A AC-DC wall adapter, to remain ON for a short time (maybe one second or a little more) after the AC mains gets its energy interrupted, when AC ...
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1answer
32 views

How many routers can the Powerbank power and how long?

I have a power bank, Capacity: 27000mAh/99.9WH Input: 19V/1.6A AC output: 220V/50Hz 100w Max Router (MR600) Input: 100-240v 50/60hz 0.6A output 12v 1.5A
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1answer
43 views

What's the difference between ethernet and serial cable?

I am confused about the difference between ethernet and serial cable? Do they do different things or not? If so, what's the difference? Also, I would like to know the cable that is suitable for long-...
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0answers
92 views

How to connect to the PCB of an Alcatel Linkhub HH40

I recently bought an Alcatel Linkhub HH40 4G router. Unfortunately, the web interface doesn't provide the functionality I was hoping for (e.g., automatically disabling the radio functionality over ...
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1answer
60 views

How to extend router wire?

I have a router with 2m wire, and it would be really useful to extending it a little. I was thinking about cut in somewhere and add 2 'nipple' (not sure if proper word) to connect them with new 3m ...
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0answers
35 views

Connecting a 12v router to a 12v battery [duplicate]

can I connect a 12v router directly to a 12v battery which normally will be at 13-14v (because most of the time it’ll be charging)? The router is a TP LINK Archer MR200 rated at 12V 1A
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1answer
220 views

5 seconds power supply backup for 12V 0.5A router

My country has a problem with the mains electricity supply, which cuts off and comes back straight away. My router restarts every time that happens. What I like to know is: What would be the most ...
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0answers
43 views

What happens if I use a 1A power supply in a router that requires 1.2A? [duplicate]

I have this d-link router, it's original power supply was 5V and 1.2A, but I found a 5V 1A supply. It is working, but does it represent a risk to use it? What could happen?
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3answers
1k views

Powering a router with a USB power bank [duplicate]

I have a usb powerbank(w 1.1 & 2A outputs) and I would like to power a router since I have no access to a power source. My issue is the least I've seen routers rated for are 9v min. usually 12v. ...
2
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2answers
816 views

UPS for home router [duplicate]

Sometimes we have power outages that last about 100 ms that are long enough to discharge capacitors inside router, when that happens we need to wait about 10-15 minutes for DNS, which is pretty ...
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2answers
356 views

Why do ADSL router capacitors bulge after a few months?

This commentator writes: if the modem is many years old, the capacitors can leak electrolyte and go out of spec and instead of just blocking the 'low notes' of a telephone conversation, it might ...
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0answers
2k views

Arduino TTL level converters 5V -> 3.3V

I am trying to interface a WRT54G serial port directly with an arduino pro micro's hardware UART by connecting RX to TX and TX to RX between the devices. I have a simple code running on the arduino ...
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4answers
263 views

What is this amber like substance on capacitor and inductor?

What is the mysterious substance on the inductor and (failed) capacitor? What is its purpose, and how do I replace the failed capacitor with it there? The substance is hard and translucent, but I can ...
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1answer
274 views

questions on powering a router with 9v alkaline battery

so I have a Linksys router which I want to power with batteries. so it can be a portable router. The Original Power supply for the router is rated 12V DC 0.5A MAX. I've tried powering the router ...
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2answers
983 views

How to prevent eagle from attempting a specific route?

I'm using the eagle autorouter to route my PCB because it makes cleaner tracks than if I did it myself. One problem I have is that sometimes it insists on attempting to make the same connection over ...
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1answer
795 views

replacing ceramic capacitors in a wifi router [closed]

We had a thunderstorm a few days ago and our Asus DSL-N14U modem router stopped working. I opened it up and as far as I can see everything on the PCB is in good shape except two ceramic capacitors ...
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1answer
81 views

Connecting 12v 1A device [duplicate]

I have a 12V 7Ah battery can I directly connect it to my device having rating 12v 1A? Will my device extract 2.25 amp current as it is betterys initial current or it will only extract 1 amp current. ...
3
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1answer
136 views

What punch down tool should I use on this ethernet jack?

As you can tell this does not have the vertical lines like a regular keystone jack. So i was wondering what punch down tool should i use? ...also what are these called?
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2answers
190 views

Bluetooth based Sensors to the Cloud, processor choice?

This is a pretty broad question, but I'm curious to hear how people would go about this and what parts they would use to do the heavy lifting. Imagine you had a bluetooth module, it works fine and ...