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Instruction Manual
5
JP3 and JP2 - Serial port power
These two jumpers are used to provide external power to the two breakout cables or
the 16 serial ports. JP3 enables or disables power over ports 1 to 8, and JP2 enables or
disables power over ports 9 to 16. When enabled, the card connects DC power to pin 9
of the DB9 port(s).
JP1: Power selector Setting
No power is supplied to pin nine on the serial
ports
Power is supplied to pin nine on the serial ports
and the power source is determined by what is
selected at JP1
DIS ENA
DIS ENA
JP4 – UART power selector
Leave at the default setting (3.3V).
JP5 - Mode setting
This is for factory test purposes only. The jumper must be xed at SB.
JP6 - PME setting
This jumper enables or disables wake from sleep.
JP1: Power selector Setting
PME is disabled
PME is enabled
ENA DIS
ENA DIS
(default)