Moxa CP-138U-I-T Manual de usuario descargar pdf (Pagina 23)

Universal PCI Board User’s Manual Hardware Installation

2-10

POS-104UL

Port 1

Port 2

41.7 mm

(1.64 in)

120 mm

(4.72 in)

LU401-SOP

64.4 mm

(2.53 in)

121 mm

(4.76 in)

Port 3

Port 4

The onboard jumpers are used to specify the pin 9 power signal for each serial port.

Step a

The top row of jumper pins selects the source of 12V power; the bottom row of jumper pins selects

the source of 5V power:

Bus power External power

If 5V or 12V external power is enabled, you will need to connect the cable from the back of

POS-104UL to the PC’s power supply. Remove both jumpers to disable all power signals to all ports.

Step b

For each serial port, a set of 5 jumper pins is used select the power signal that is sent to pin 9.

5V 12V RI signal (input)

To disable pin 9 power signals for a specific port, remove the jumper.

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Moxa CP-138U-I-T Manual de usuario Pagina 23