4-дюймовые 6-значные часы PoE для гимназии синхронизированные Ethernet автоматический сброс
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- Поставщик: Shanghai,Globaltime,Electronic,Co.,Ltd.
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Характеристики
Powered by network. Time is real.
Digital PoE clocks draw both power and time updates from your organization’s Ethernet connection. PoE clocks are energy-efficient and eliminate the need for AC receptacles and the use of batteries. You’ll love the hassle-free installation and maintenance of these synchronized clocks!
Synchronized Time Systems for :
Offices and home
Healthcare
Education (military schools)
Manufacturing
Education (military schools)
Manufacturing
Insurance companies
Financial institutes
Transportation
Government
Government
...
Data sheet and manual are available online at
http://www.ntpclock.com/manuals
4 Inch 6 Digit PoE Clock(Single Sided):
Plastic Casing
Black Metal Casing
White Metal Casing
Grey Stainless Steel Casing(SS304)
Plastic Casing-Green LED
Plastic Casing-Back Side
4 Inch 6 Digit PoE Clock(Double Sided):
Plastic Casing
Features
• Draw both power and time updates from the network.
• Power over Ethernet (IEEE802.3af)
• Supports up to 5 SNTP servers for redundancy.
• DHCP or Static IP addressing.
• 12/24 Hour Mode with PM indicator.
• Timezone management ( Factory-set to your time zone)
• Automatic daylight saving time adjustment (where applicable)
• Easy plug and play installation.
• Accuracy ±20 millisecond to NTP/SNTP time server.
• Programmable countdowns.
• Adjustable brightness settings.
• If connection to NTP server is lost the clocks will continue to run on the built-in time base. When the connection is restored it will synchronize automatically.
• The clock features time loss notification by having a light on on the right lower corner.
Options include...
* 4-digit or 6-digit displays
* Red/green/yellow/amber digits
* Single-sided or double-sided clocks
• Timezone management ( Factory-set to your time zone)
• Automatic daylight saving time adjustment (where applicable)
• Easy plug and play installation.
• Accuracy ±20 millisecond to NTP/SNTP time server.
• Programmable countdowns.
• Adjustable brightness settings.
• If connection to NTP server is lost the clocks will continue to run on the built-in time base. When the connection is restored it will synchronize automatically.
• The clock features time loss notification by having a light on on the right lower corner.
Options include...
* 4-digit or 6-digit displays
* Red/green/yellow/amber digits
* Single-sided or double-sided clocks
* Case in plastic/metal(iron)/stainless steel(SS304)
Optional Functions
(1) Bell Function
We can add a built-in PCB power relay to the clock, then it can be connected to a bell and the bell can be programmed to ring at 30 different moments.
(2) Temperature/ Humidity Display
We can add a temperature sensor or temperature & humidity sensor to the clock then it can display time, temperature, and humidity alternately.
There is additional charges for optional functions, please click the below purchase links for more details.
(1) PCB Power Relay:
(2) Temperature Sensor:
(3) Temperature& Humidity Sensor:
Optional Accessories
(1) AC/DC Adaptors
If PoE is not available, then we need an AC/DC adapter with a 5.5mm x 2.1mm plug for power supply.
Red/ Yellow/ Amber LED clocks: 12V DC, 2A
Green LED clocks: 18V DC, 2A
Green LED clocks: 18V DC, 2A
(2) Installation Accessories
For single- sided clocks, it's not necessary to use the mounting accessories because on the back side there are two holes for hanging the clocks on the wall; but for double- sided clocks, it is necessary to buy the mounting accessories.
There is additional charges for optional accessories, please click the below purchase links for more details.
Management Software
FAQ
Question:
Question:
When there is interruption of network, is there any indication? And will the clock still display correct time?
Question:
Will you charge for the management software?
Answer:
No. It is free. The software is available online at http://www.ntpclock.com/manuals
Hi from Sweden, I am interested to buy this item, but I don’t know if you can send it to Sweden.
Answer:
Yes, we can send it to Sweden, we have CE certificate. By April 2, 2024, our synchronized clock systems have been sold to 86 countries or regions over the world!
Question:
Hello! Does this clock support IPv6?
Answer:
No, the current version only supports IPv4.
Question:
When there is interruption of network, is there any indication? And will the clock still display correct time?
Answer:
Normally the clock synchronizes with NTP server every 5 minutes. When there is interruption of network, a small dot will appear on the right bottom corner of the LED display and the clock won’t synchronize, so it will be inaccurate slowly, the deviation is about 1 minute per day. As soon as it is connected to network again, it will display correct time automatically and the dot will disappear.
Normally the clock synchronizes with NTP server every 5 minutes. When there is interruption of network, a small dot will appear on the right bottom corner of the LED display and the clock won’t synchronize, so it will be inaccurate slowly, the deviation is about 1 minute per day. As soon as it is connected to network again, it will display correct time automatically and the dot will disappear.
Question:
Can we set up the time without a NTP server?
Answer:
It does require some NTP server, such as a private NTP server or internet based source( internet public NTP server). With that available, it will keep itself accurate and on the money.
Question:
When there is interruption of power supply, will the clock work?
Answer:
The clock doesn’t have a built-in battery, when there is interruption of power supply, it won’t work. But as soon as the clock is connected to power and network, it will display the correct time automatically, no need of manual adjusting.
Question:
Will you charge for the management software?
Answer:
No. It is free. The software is available online at http://www.ntpclock.com/manuals
About Us
GlobalTime has been a pioneer in synchronized timekeeping systems since the year 2003. We strive towards innovation and reliability. We feature a complete line of GPS time servers (NTP servers, PTP servers) and synchronized clocks. With outstanding R&D team, GlobalTime offers a wide range of time servers and NTP clocks, radio clocks, CDMA clocks. By providing accurate, real-time information, we keep schools, hospitals, airports, train stations, media houses, offices, financial institutes, military bases, public security bureaus and other governmental institutes informed and on the same stage.
By Mar 27, 2024, our GPS time servers and synchronized clocks are widely used in 86 countries or regions all over the world, including North America, Central America, South America, Europe, Middle East, Africa, Asia and Oceania.
We provide first-rate and free lifetime support for all our products. At GlobalTime, we value our customers and their satisfaction above all else!
For more information, please don’t hesitate to contact us at contact@ntpclock.com
By Mar 27, 2024, our GPS time servers and synchronized clocks are widely used in 86 countries or regions all over the world, including North America, Central America, South America, Europe, Middle East, Africa, Asia and Oceania.
We provide first-rate and free lifetime support for all our products. At GlobalTime, we value our customers and their satisfaction above all else!
For more information, please don’t hesitate to contact us at contact@ntpclock.com
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