User's Manual

10 LCT 450 Installation/Operation Guide 05-4819A01, Rev. 08
For CTS Key operation (see DEVICE command), the timer specifies
how long to wait after asserting the CTS, before sending data out the
DATA INTERFACE port. A timer value of zero means that data will be
sent out the data port without imposing a key-up delay. (Other delays
may be present based on selected radio operating parameters.)
CTSHOLD [0-60000]
Clear-to-Send Hold Time
Used in DEVICE CTS KEY mode, this command sets the amount of time
in milliseconds that CTS remains present after transmission of the last
character out the RXD pin of the
DATA port. This “hold time” can be
used to prevent squelch tail data corruption when communicating with
other radios.
The CTSHOLD setting can range from 0 to 60000 ms (i.e., 60 seconds).
The default value is
0, which means that CTS will drop immediately
after the last character is transmitted. If the command is entered when
the radio is in
DEVICE DCE mode, the response CTSHOLD N/A is dis-
played.
DATAKEY [ON/OFF]
Key on Data Activity
The
DATAKEY command enables or disables the ability of the radio to
key the transmitter as data is received at the
DATA INTERFACE con-
nector. Asserting RTS keys the radio regardless of this command set-
ting.
If
DATAKEY is set to ON, the radio will key when a full data-character
is received at the transceiver's
DATA INTERFACE connector. If
DATAKEY is set to OFF, the radio needs to be keyed by asserting RTS.
DEVICE [DCE, CTS KEY]
Data Device Mode
The
DEVICE command controls or displays the device behavior of the
radio. The command parameter is either
DCE or CTS KEY.