Скачать или смотреть Digital POE Clock with Bell Function, Supports NTP, Automatic DST Reset

Features:
• Available with 2.3” digits, can display calendar or text in English ( less than 64 bytes)
• 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 (brilliant, bright, normal, dim, off)
• 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.

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.