Hp AMD Geode ECM-5510 Manual do Utilizador descarregar pdf (Página 39)

User’s Manual

ECM-5510 User’s Manual

2.4.15.1 Signal Description – Serial Port 1, 3, 4 Connector (CN6)

Signal Signal Description

TxD

Serial output. This signal sends serial data to the communication link. The signal is

set to a marking state on hardware reset when the transmitter is empty or when

loop mode operation is initiated.

RxD Serial input. This signal receives serial data from the communication link.

DTR

Data Terminal Ready. This signal indicates to the modem or data set that the

on-board UART is ready to establish a communication link.

DSR

Data Set Ready. This signal indicates that the modem or data set is ready to

establish a communication link.

RTS

Request To Send. This signal indicates to the modem or data set that the on-board

UART is ready to exchange data.

CTS

Clear To Send. This signal indicates that the modem or data set is ready to

exchange data.

DCD

Data Carrier Detect. This signal indicates that the modem or data set has detected

the data carrier.

Ring Indicator. This signal indicates that the modem has received a telephone

ringing signal.

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Hp AMD Geode ECM-5510 Manual do Utilizador Página 39