Husky MP2500 Manual page 157

Setting Result
OFF The RTS line is permanently active (positive).
HOLD The RTS line is normally active (positive) and only goes
inactive (negative) when the receive buffer is full. This
allows the MP2500 to hold up a transmitting device (by
lowering the RTS line) until it has removed enough
characters
transmitting device to send more data (by raising the RTS
line again).
This mode can be used when communicating with
another H
RTS would be connected to the transmitting device's CTS
input.
TRUE This mode is mainly used with a half duplex modem or
similar device, when sending data in blocks and relying on
the protocol for flow control.
When the MP2500 is ready to transmit data, it raises RTS
to active (positive), then waits for a reply on the CTS line
(if enabled) before sending the data in the transmit buffer.
RTS remains active until all the data has been sent and
the buffer is empty, then the MP2500 returns RTS to the
inactive state (negative).
RX T/O
Use
To set the timeout period for data reception.
Notes
The timeout is initiated by a request for serial input by an application. If a
character is not read from the receive buffer within the specified time limit
(because it is empty), a communications error will result.
Reception of any character, or noise, will reset the timeout.
Chapter 13: Introduction to Communications
from the receive buffer
computer, via a crossed cable. Normally,
USKY
to allow the
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