Dot Origin VTAP100 설치 매뉴얼 - 페이지 12

{카테고리_이름} Dot Origin VTAP100에 대한 설치 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Dot Origin VTAP100 17 페이지. Desktop usb reader
Dot Origin VTAP100에 대해서도 마찬가지입니다: 설치 매뉴얼 (13 페이지), 설치 매뉴얼 (16 페이지)

페이지 인쇄

A typical RS232 cable has the following DB9 female connector pinout:

A PC or terminal RS232 connector is usually DTE (data terminating equipment), typically a

male DB9 with transmit (TXD) on pin 3 and receive (RXD) on pin 2. The appropriate

connecting cable is then a DCE (data communications equipment) female DB9. TXD and

RXD pins are swapped between the DCE and DTE devices, so that the transmit pin on one

connects to the receive pin on the other.

The VTAP100 requires a 5V power supply, but not all RS232 devices have 5V on pin 9. Your

options are:

If your RS232 connector provides 5V power on pin 9, disconnect the USB cable before

making the serial connection, then power will be provided by J1 (pins 1 and 3) and the

serial cable/host.

If your RS232 connector does not provide 5V power on pin 9, retain a USB connection in

addition to the serial connection.

Some serial cables have a separate DC 5.5/2.1mm barrel connector to supply power. In

these cables, typically, the centre pin is +5V and the outer barrel is GND.

VTAP100 OEM MODULE

INSTALLATION GUIDE

Figure 3-4 Typical RS232 cable

Function

+5V supply (if any)

VTAP MOBILE WALLET READERS

TXD

RXD

GND

PAGE 7