Newland NLS-NVH200, User Manual

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Enter Setup
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Exit Setup
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50
Hardware Automatic Flow Control (Default hardware version does not support)
When this setting is enabled, the scanner determines whether the data can be sent according to the level of the CTS signal. When
the CTS signal is low, It is indicated that the serial buffer of the receiver (PC, etc.) is full, and the reader will not send the serial data
until the CTS signal is set to a high level by the receiver (PC, etc.). When the reader's serial port is not ready to receive RTS will be
set to low level, the transmitter (PC, etc.) detected that the signal is low level, can’t send data to the reader, otherwise the data will
be lost.
If hardware automatic flow control is forbidden, the receiving and sending of serial data will not be affected by RTS/CTS signal.
** Off On
If you need to use hardware automatic flow control, make sure that the serial communication cable used
contains RTS / CTS signal lines. If the serial communication cable does not contain RTS / CTS signal line,
opening hardware automatic flow control will lead to serial communication failure.