User Manual

22 CompactRF
TM
Operating Manual: Chapter4 Configuration
&F1
&F2
Master Slave
&F1
&F4
&F3
Master
Repeater
Slave
4.4 Configuration Settings
The parameters described in this section affect the operating characteristics
of the CompactRF module. All the settings described in this section can be
configured using either the AT Command interface or the menu interface.
AT Menu
DCD (Data Carrier Detect) &C M
The &C command controls the modem’s DCD output signal to the host
microprocessor. This command determines when the DCD is active.
&C0 DCD is always ON
*&C1 DCD on when modems are synchronized. DCD is always
on when unit is configured as Master.
&C2 DCD used for output data framing and Modbus mode.
See page 24 for details.
AT Menu
DTR (Data Terminal Ready) &D N
The &D command controls what action the modem performs when the DTR
input line is toggled. The DTR input is controlled by the host
microprocessor.
*&D0 DTR line is ignored
&D1 Not Supported
&D2 DTR disconnects and switches to Command Mode
&D3 DTR disconnects and resets modem. Modem will remain
in this state until DTR again goes active.
AT Menu
Load Factory Default Configuration &F F
The &F command resets the modem and loads the default factory
configuration.
&F1 Master Point-to-Multipoint. Designed to communicate
with modems configured as &F2 or &F3.
&F2 Slave. Designed to communicate with another modem
configured as &F1.
&F3 Repeater. Designed to communicate with modems
configured as &F1 and &F4.
&F4 Slave working with factory default Repeater and factory
default Master. Communicates directly with Repeater
configured as &F3.