9dot LiteSync Manual - Page 12
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Input power
The technical information of the input power is detailed below:
Main input power
To turn on the device it must be powered via redundant terminals on the front (optional standalone power supply ACDC-48
or ACDC-24 provided by 9dot).
The main input has an isolated DCDC converter that powers the CPU. In this way, maximum immunity from voltage surges
present on the power supply lines is guaranteed.
The main input admits polarity inversion, that is, a negative voltage can be connected to its terminals without problems.
IMPORTANT NOTES:
•
The negative poles of the power connectors are directly connected. The reverse polarity protection does not protect
the device in the event that the two negative poles are connected to voltages not suitable for being short-circuited
together.
•
The redundant power supply terminals can be used simultaneously, even with different voltages. In the case of two
different power supplies (for example 48V and 24V), LiteSync will power the output devices with the highest active
voltage.
Special case -48V
If you have a voltage of -48V (as often happens in some telecommunication systems), just connect the 0V cable to the positive
(+) terminal and the -48V to the negative (-) terminal according to the indications on the LiteSync silk-screen printing.
Output power
The main function of the PoE injector of this device is to allow the powering of other equipment on the network. LiteSync is a
passive injector.
IMPORTANT NOTES: Unlike active PoE, passive PoE does not use any protocol to determine the type of device to be powered;
it simply applies a type of voltage to its port without identifying which type of PoE standard or supply voltage the connected
load is compatible with. Using an unsuitable voltage and / or wrong pin out can cause irreparable damage to the powered
device.
It is possible to power a wide range of devices that accept different voltages as this cartridge essentially replicates the voltage
from the power terminals to the PoE output ports without applying any conversion.
This offers great versatility when it comes to connecting several PoE devices in the same infrastructure as each cartridge can
be powered at a different voltage than the rest.
In addition to supporting different voltages, the PoE Injector has the possibility to select the pin out of the PoE output ports,
by inserting a simple key, called GigaKey, thus allowing it to power a wide range of devices on the market.
To find out if your PoE device can be powered via LiteSync, just check the pin out that the GigaKey allows you to select and see
if it matches the input pin out of your equipment.
See the "GigaKey" section
4
LITESYNC MANUAL
Input voltage
+/- 24 - 60V DC
Table 3 - Voltage range, self-consumption and maximum load of the input power
.
4
Self-consumption
4W
12
Max load
360W
VER. 2 REV. 0