CCIIMUNICATIONS
6,4,7,3
6,4,7,4
VER.V09F
a) OFF
b) HOLD
c) TRUE
SECTION 6.4
When this option for RTS is selected the RTS line
is permanently active_ (+ve) and its state is not
altered at any time during communications.
In this mode the RTS line is normally active
(+ve) and only goes inactive (-ve) when HUNTER
has received too many characters and the receive
buffer is about to overflow. This mode can thus
be used to hold up a transmitting device until
HUNTER has removed enough characters from the
receive buffer such that there is enough space in
the buffer to allow the transmitting device to
send more data by raising RTS to active (+ve)
again. This mode can be used when communicating
HUNTER to HUNTER via a crossed cable, If a
synchronous protocol has been selected, RTS
should not be set to HOLD,
This mode of RTS is meant for handshaking with a
MODEM or similar device, When HUNTER wishes to
transmit data, it first of all raises RTS from
inactive (-ve) to active (+ve), Then HUNTER
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 HUNTER returns
RTS to the inactive state (-ve).
DCD pin 8 (Data Carrier Detect) input to HUNTER,
This signal, selected on the receive menu, is used to tell
HUNTER that received data is valid.
If selected then only when the signal is active (+ve) is data
received normally,
If DCD is inactive then no data will be received, even if the
data input line has data on it,
DSR pin 6 (Data Set Ready) input to HUNTER,
This signal, selected on the receive menu, is used to tell
HUNTER if the peripheral (usually a modem) is ready to operate,
If selected, only
if DSR is active will HUNTER communicate in
both directions.
If DSR is inactive then HUNTER will not transmit or receive
data. This signal can be ignored by selecting "n" on the receive
menu,
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