User's Manual

TS4000 Radio Modem User’s Manual Serial Port 14
This option only has effect if packet operation is not enabled.
Selection Description
Disabled The modem begins transmitting as soon as it
receives the first non-control character of a transmit
burst.
Enabled The modem waits for a complete transmit burst
before it begins transmitting.
Selection Description
Idle Time Between Bursts This sets the minimum amount of time (in character
periods) that the receive data (RXD) line will be idle
(inactive) between received bursts of data. If this
value is set to zero, the receive data line may
remain active continuously when multiple bursts of
receive data are transferred to the host.
If the DCD line option is set for the Active when
Sending Receive Data to the User then the DCD
line will also be inactive during the receive data line
idle times.
DTR Enabled for Receive
Data Flow Control
When enabled, DTR acts as flow control for receive
data coming from the TS4000 to the host. When
DTR is inactive, data received by the TS4000 is
stored in an internal buffer and inhibited from being
sent to the host equipment. The flow of receive
data out of the serial port resumes when DTR is
activated.
Selection Description
Active when Sending
Receive Data to the User
DCD is active when receive data is sent out of the
TS4000 via the serial port.
Active when Receiving DCD is active when the TS4000 detects a signal on
the radio channel. This mode can be used to
remote the receive LED.
Both DCD is active when either receive data is being
sent out the serial port or when a signal is detected
on the radio channel. Note that for most conditions
and configurations these states overlap.
Wait For Complete Burst
Before Beginning
Transmission
Receive Data Protocol
DCD Line Control