American Time PoE - Manual (Page 4)

© American Time
4
PoE Installation Manual
Appendix
Tr
oubleshooting
Configuration
Network Clock
Connect
Installation
Intr
oduction
Specifications
Introduction
Power over Ethernet (PoE) provides an accurate synchronized time source. PoE and Simple Network Time Protocol (SNTP) are
used to make installation and setup as simple as possible. All you need to do is connect the clock to a PoE enabled Local Area
Network (LAN) Ethernet drop.
PoE
Power over Ethernet (PoE) describes a system that passes electrical power, along with data, on Ethernet cabling. Power may
come from a power supply within a networking device such as a PoE switch or it may be injected into the Ethernet cable using a
midspan injector.
There are several advantages for using PoE. PoE eliminates the need to run AC power cables for certain devices. Instead, the
more cost effective category 5 or 6 cable is run for PoE devices. Also, since PoE is symmetrically distributed, the power source
may be determined after the cables are ran.
PoE clocks require connection to a PoE enabled LAN. In a typical installation, a PoE switch or a PoE injector would be used to
power your PoE clock.
Network
These Power over Ethernet Clocks are plug and play on networks with Dynamic Hosting Configuration Protocol (DHCP). A
NIST time server is used for the default time server but may be changed using the Network Clock Connect application or the
configuration web page.
The clocks may also be configured using static IP addresses.