Rainbow-electronics GM862-QUAD-PY Manual de usuario descargar pdf (Pagina 31)

GM862-QUAD / PY Hardware User Guide

1vv0300748 Rev. 5 - 20/09/07

The signals of the GM862-QUAD / PY MODEM serial port are:

RS232

Number

Signal

GM862-

QUAD / PY

Pin Number

Name Usage

1 DCD -

dcd_uart

36 Data Carrier Detect Output from the GM862-QUAD / PY that indicates

the carrier presence

2 RXD -

tx_uart

37 Transmit line *see Note Output transmit line of GM862-QUAD / PY UART

3 TXD -

rx_uart

20 Receive line *see Note Input receive of the GM862-QUAD / PY UART

4 DTR -

dtr_uart

43 Data Terminal Ready Input to the GM862-QUAD / PY that controls the

DTE READY condition

5 GND 2-4 Ground Ground

6 DSR -

dsr_uart

33 Data Set Ready Output from the GM862-QUAD / PY that indicates

the module is ready

7 RTS -

rts_uart

45 Request to Send Input to the GM862-QUAD / PY that controls the

Hardware flow control

8 CTS -

cts_uart

29 Clear to Send Output from the GM862-QUAD / PY that controls

the Hardware flow control

9 RI - ri_uart 30 Ring Indicator Output from the GM862-QUAD / PY that indicates

the incoming call condition

NOTE: According to V.24, RX/TX signal names are referred to the application side, therefore on the GM862-QUAD /

PY side these signal are on the opposite direction: TXD on the application side will be connected to the receive line

(here named TXD/ rx_uart ) of the GM862-QUAD / PY serial port and vice versa for RX.

TIP: For a minimum implementation, only the TXD and RXD lines can be connected, the other lines can be left open

provided a software flow control is implemented.

The signals of the TRACE serial port are:

Signal

GM862-

QUAD / PY

Number

Name Usage

RX_TRACE 41 Python Debug Receive line Input line of Python Debug serial Port

TX_TRACE 35 Python Debug Transmit line Output line of Python Debug serial Port

GND 2-4 Ground Ground

1 2 ... 26 27 28 29 30 31 32 33 34 35 36 ... 67 68

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