
OnTime Clock
Installation and User Guide
Firmware Version 2
All claims based on information publicly available at time of printing. All other product or service names mentioned
in this document may be trademarks of the companies with which they are associated.
© 2017 Inova Solutions | All rights reserved | page 5
4. Installation
4.1. Pre-Installation
Before installing any clock, you should:
Obtain all necessary permissions from facilities managers or property owners.
Develop a LAN diagram showing the desired location of each unit.
Plan the Power over Ethernet (PoE) power solution.
Select a mounting method for the clock.
Acquire tools and materials including assorted screwdrivers, power drill, and
other materials necessary to ensure that mounting brackets are installed in
compliance with building codes and restrictions.
4.2. Unpack the Clock
When the clock shipment arrives, inspect all packing boxes for damage. Unpack all
clocks and inspect them so that you can report any damage to Inova Solutions.
4.3. Power over Ethernet Cabling Plan
The OnTime Clocks require connection to PoE enabled network equipment that can
source power in compliance with IEEE 802.3af. PoE power is commonly used to power
devices such as wireless Access Points and IP telephones; it is usually injected into the
LAN using either PoE enabled Ethernet switches or Mid Span power injectors. Consult
with your IT group to make sure that the required PoE equipment is in place.
4.3.1. Small Scale Installations
Single port PoE power injectors are the best means of powering PoE devices for a
demonstration system or a small scale deployment. Inova Solutions offers a single port
PoE injector for sale to support these systems (see Figure 1). Refer to the
OnTime Store
for more information on this part.
A power injector is typically installed in the communications room, and passes Ethernet
communications through while also injecting power in accordance with the IEEE
802.3af standard. The 48 VDC power is only supplied to devices that request it through
a handshake mechanism, so normal Ethernet devices are not damaged if connected to a
standard PoE port. Note that a power injector requires a connection to AC power, and
may be connected to a battery backed uninterruptable power supply (UPS).