W&T Com-Server++, Manual

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72
W&T
Configuration of the serial port
filtered out from the actual data flow in both directions.
This filtering can be turned off individually for each data
direction in the Special submenu.
Function control signal: RTS: NO (Default HIGH)
DTR: NO (Default HIGH)
CTS: NO
DSR: NO
n
NO handshake
Turns off any hardware or software flow control for the
serial interface. All the data are output to the connected
terminal device regardless of the status of the inputs CTS
and DSR. Any impending overflow of the serial input buffer
is not signalled by the Com-Server. The setting NO Hand-
shake makes sense for any data transmission that uses a
serial protocol for data integrity or flow control.
Function control signal: RTS: NO (Default HIGH)
DTR: NO (Default HIGH)
CTS: NO
DSR: NO
n
Special
Here it is possible to configure the function of the con-
trol lines differently from the three predefined protocols.
Toggle between on and off by entering the menu number
of the desired function. Settings made here are correspon-
dingly overwritten by selecting one of the three predefined
handshake modes.
n
Pin: RTS & Pin: DTR
The following functions can be assigned to the outputs
RTS and DTR:
1� Flow Control – If this function is turned on, the
Com-Server handles the RS232 flow control through
the corresponding output. The ready state for serial
data is signaled by a HIGH signal (+3...12V). If the me-
mory limit of the input buffer is reached, the line is set
to LOW (-3...-12V).