Q:What is a relay device and a conversion device?

A hub is a special repeater that can be used as a switching device for multiple network segments, as several hubs can be cascaded. Smart hubs can also integrate network functions such as network management and routing. With the development of network switching technology, hubs are gradually being replaced by switches.

Q:What is the use of the relay module in the fire fighting weak electricity system?

The technical parameters of the current relay module are as follows:(1) the quiescent current is less than 20mA.(2) load carrying capacity and compatibility: it can be equipped with 1~242 point bus equipment and compatible with all bus equipment.(3): bus isolation voltage input and output bus isolation voltage of more than 1500V.(4) the use of the environment: temperature: -10 to +50 DEG C relative humidity is less than 95%, no condensation.(5) dimensions: 85mm * 128mm * 56mm.

Q:Japanese fire automatic alarm system. How can I dial the repeater?

Fire control module is also called input and output module, which is an important part of fire fighting linkage control system. It is used in automatic fire alarm system to connect smoke exhaust valve, air supply valve, fire damper and so on. The module has a pair of normally open and normally closed contacts. The external contacts of the module are connected with the external circuit to realize the linkage control of the external equipment. Domestic fire alarm manufacturers are numerous, here introduces several input and output modules.

Q:Are there any differences between the WiFi receiver, routing, signal amplifier, repeater and signal intensifier?

Signal amplifier is to increase the equipment, so that the original signal difference in the local signal enhancement.A repeater is a device that allows signals to extend.

Q:The mobile phone connection repeater always shows that the IP is not connected

1 no problem solved by 2 static IP with Taiwan can even WiFi network equipment to obtain IP address, subnet mask view, gateway, DNS mobile phone connection WiFi connection when the first copy to enter a password hook selection senior static IP (or hand fill) copy to fill all access IP address for 192.168.1.101 than to copy hand filled with 192.168.1.111 (the 102 WiFi is even afraid of equipment occupied access) in some network connection should play to the password

Q:Repeaters can amplify several WiFi signals, such as three WiFi in my house, and whether the three signals will be very good!

No, the repeater can only amplify one route WiFi at the same time

Q:The repeater is plugged in. There's no signal. Why?

Did you buy a wireless repeater or a wireless AP? There are differences between the two, and the settings are different.

Q:In the fire alarm system, when will the relay module be used?

A lot of water indicators, ordinary 70 degree fire dampers. With input module, fire shutter door, fire smoke exhaust valve, cut off non fire electricity, sound and light alarm (now generally bus system), no need, general use control module or call input and output module. Multi line module for smoke exhaust fan, fire pump and spray pump

Q:How does the COMFAST wireless relay router use the relay function (model CF, wR360N)?

Confirm the wireless router relay network normal after entering the "Wireless Settings" - "basic settings", you can see the wireless router's "SSID", this is what we are going to the relay wireless network name, and then set behind the relay will be used when the note down.Also need to pay extra attention to is, by wireless signal relay cannot use "automatic" channel, some routers default will be set to auto channel, it will cause the router to restart, because different channel repeater relay failure, channel 1, 6 is 11, etc..

Q:What is the principle of fiber repeaters?

First, the transmission of optical signals is explained. When the transmission of the optical signal in the optical fiber with a longer distance and the signal decreased, when less than a fixed value when the optical receiver at the receiving optical signal can not correctly identify signal encoding, will lead to error, so at a certain distance from the optical fiber transmission, with a fiber optic repeater, the light amplification the signal can support long-distance transmission, similar to the gas station.