AXIOMTEK AX10445 Series, Руководство пользователя

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AX10445 Module Series User
’
s Manual
Setting up the AX10445
11
Control signals such as RTS and CTS are used to coordinate
the transmission and reception of data, and the term
handshaking is used to describe it. A brief description of the
functional characteristics of each signal line follows:
1. Transmit
Data
: The DTE uses this line to transmit data to other DTE.
2. Receive
Data
: Data are received from other DTE via this line.
3. Ground : This line establishes a common ground reference for all
signal lines.
4. Request to
Send
: When active, this line conditions the receptor DTE for
data transmission. In the case of full duplex
communication it may be kept constantly active to
maintain the receptor in transmit mode. In half duplex
communication, RTS must be inactive while in receive
mode.
5. Clear to
Send
: The receptor DTE activates this line to indicate its
readiness for data transmission. It does so after the
transmitter DTE activates RTS.