Frequently Asked Questions?

IP Clocks
  1. How are the PoE clocks powered?
  2. How do they synchronize their time?
  3. How many clocks can be put on a given circuit?   How much power do the clocks require?
  4. How often do these clocks receive updated time from the NTP server? How long will it take a clock to display the correct time after a power failure?
  5. Do the clocks come with software or can be accessed a web browser?
  6. Do the clocks need a static IP address?
  7. How are the clocks mounted?

1. How are the PoE clocks powered?
The Valcom clocks use Power over Ethernet (PoE), and are compliant with IEEE standard 802.3af. The power may be supplied by a LAN switch with PoE capability. If the LAN switch does not have PoE, a midspan power injector may be used.

2. How do they synchronize their time?
The Valcom PoE clocks use Network Time Protocol (NTP) to receive time from any NTP server. The NTP server can be located on an internal (private) network or on the public Internet.

3. How many clocks can be put on a given circuit?   How much power do the clocks require?
Each Valcom PoE clock will require one Ethernet connection for both data and power. Each PoE port will supply power to one device. Each clock requires about 5 – 7 Watts.

4. How often do these clocks receive updated time from the NTP server?  How long will it take a clock to display the correct time after a power failure?
The Valcom clocks will contact the NTP server to synchronize time within about one minute of being powered on, then once per hour thereafter.

5. Do the clocks come with software or can be accessed a web browser?
Each Valcom clock is supplied with the VIP-102B IP Solutions Setup Tool. This software tool provides an easy way to program all of the features of the clocks.

6. Do the clocks need a static IP address?
The Valcom PoE clocks can be programmed with a static IP address, or can use a DHCP (Dynamic Host Configuration Protocol) server.

7. How are the clocks mounted?
Valcom analog and digital PoE clocks are surface mounted.

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