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POWER SUPPLY
VIDEO LOAD
POWER SUPPLY
The HUB-8C has a pair of terminals to connect a source of +24 Vdc. This is the recommended operation mode.
If there is not connected any power supply to terminals, the HUB-8C draws power from the input line. It is
recommended to carry no more than two HUB-8C units, in this configuration.
Regardless of whether the HUB-8C is powered from the input line or from the power supply terminals, the power will be
present in the output line, for the next HUB-8C distributor.
The HUB-8C requires 100mA maximum, in standby mode.
The power supply has two associated LEDs, a yellow one and a green one.
VIDEO LOAD
The HUB-8C features a switch, accessible through a hole, which allows switching the video load suitable for the
differential video system used.
This video load must be enabled only in the last HUB-8C unit of every riser. This HUB-8C will be the one having its carry
output line free. The HUB-8C unit has two red LEDs, that show whether the video load is enabled or not.
INDICATOR LIGHTS
They are located at connectors for input and carry output lines.
- The red LEDs are OFF: The video load is not connected. This must be the situation when you connect the carry output
line to the next HUB-8C unit.
- The red LEDs are ON: The video load is connected. This must be the case when the HUB-8C has nothing connected to
the carry output line (it is the last one of the riser).
- The yellow LED is OFF: The HUB-8C is not properly fed and, therefore, is not working.
- The yellow LED is ON: The HUB-8C is powered and working.
- The Green LED is OFF: The HUB-8C is working with remote power, which comes from its input line.
- The Green LED is ON: The HUB-8C is working with local power supply that comes from a power supply connected to
its terminals. This situation is the recommended one.
INPUT LINE
Is the RJ-45 connector called 'IN'.
It receives the digital AUTA system signals, as described below.
This connector allocates the green and yellow power supply LEDs.
If the HUB-8C unit is not locally powered, the length of the wire connected to the input line is quite important. Keep
reading below.
CARRY OUTPUT LINE
Is the RJ-45 connector called 'OUT'.
It sends the digital AUTA system signals, to the next HUB-8C unit.
This output will remain unconnected when:
· The HUB-8C unit is the last one of its riser.
· The HUB-8C unit is used to generate new risers.
In both cases the video load must be enabled. Therefore, the two red LEDs in the connector will be ON.
HUB-8C OUTPUTS
The HUB-8C unit provides 8 outputs, grouped in 2 rows of 4.
These outputs are identified from 1 to 4 and from 5 to 8.
They are suitable to connect a video monitor in each of them, up to 50 meters away from the HUB-8C unit.
If any output is not used, disconnect the wire from the HUB-8C side, not from the monitor side. Do not leave
unconnected wires (without monitor) plugged into the HUB-8C unit.
If the HUB-8C is used to generate risers, use only the odd outputs (1, 3, 5, and 7), do not generate more than 4 risers,
and always enable the video load.
INDICATORS LIGHT
IN
OUT
INPUT LINE CARRY
OUTPUT LINE
5
6
7
8
2
3
4
1
HUB-8C OUTPUTS
HUB - 8C
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