Digital PS-2000B Series Guia de Instalação descarregar pdf (Página 9)

4 Interface Specifications

 RS-232C Interface (COM1/COM2/COM3/COM4)

Pin No.

Signal

Name

Pin No.

Signal

Name

1CD6DSR

2RXD7RTS

3TXD8CTS

4DTR9RI/+5V

5GND

Dsub 9 pin (Male)

Screw Size: (4-40): Inch Type

1 2 3 4 5

6 7 8 9

Changing number 9 pin’s [+5V/RI] can only be done for COM1, or COM3.

With COM2 and COM4, only [RI] is available. To change the COM1 or COM3

[+5V/RI] setting, remove the PS-B unit’s cover and locate the changeover

switch on the side of the main circuit board. The factory setting is to [RI].

• Be sure to confirm what settings will be used by the other device

and set the dip switches accordingly. Failure to do so can result in

a unit malfunction or damage.

• Whenever changing the PS-B changeover switches, be sure to

first turn the PS-B’s power supply OFF. Failure to do so can cause

a PS-B malfunction.

PS-2000B Series User Manual 1.4.1 RS-232C Interface

• The GND terminal is the signal ground. Be sure to connect the PL

unit’s GND terminal to the other unit’s SG (signal ground).

• FG and SG terminals are internally connected in the PS-B. When

connecting to another device, be sure to create an SG shorting

loop in your system.

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Digital PS-2000B Series Guia de Instalação Página 9