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3. Layout, Connections & Jumper Settings
3.3 Jumper Settings
The two internal jumpers Bus Power (JP1) and Host Control (JP2) can be used to configure the
power output on the downstream ports as required.
JP2
ON
HOST
ENA
JP1
DIS
The possible settings and their effects are shown in the following table.
Settings
Jumper JP1 Jumper JP2
Bus Power
Host control
ENA
ON
DIS
ON
ENA
HOST
DIS
HOST
DIS/ENA
HOST/ON
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Status
Netzteil
Host PC
on
off
off
on
on
off
off
on
on
off
off
on
on
off
off
on
on
on
12
Function
Hub Downstream
Data
Power
no
on
yes
on
no
on
no
off
no
off
yes
on
no
off
no
off
yes
on
EX-1237HMVS
Default:
JP1 = ENA
JP2 = ON