Command descriptions
9XTend-PKG-R RS-232/485 RF Modem User Guide
44
CF (Number Base) Command
<Command Mode Options> CF command is used to set/read the command formatting setting.
The following commands are always entered and read in hex, no matter the CF setting:
VR (Firmware Version)
HV (Hardware Version)
KY (AES Encryption Key)
CN (Exit AT Command Mode) Command
<Command Mode Options> The CN command is used to explicitly exit the modem from AT Command Mode.
CS (GPO1 Configuration) Command
<Serial Interfacing> CS Command is used to select the behavior of the GP01 pin (pin 9). This output can provide RS-
232 flow control, control the TX enable signal (for RS-485 or RS-422 operations).
By default, GP01 provides RS-232 CTS (Clear-to-Send) flow control.
AT Command: ATCF
Parameter Range: 0 – 2
Parameter
Configuration
0
Commands utilize default number base; decimal commands may output units
1
All commands forced to unsigned, unit-less hex
2
Commands utilize their default number base; no units are output
Default Parameter Value: 1
Number of bytes returned: 1
AT Command: ATCN
Binary Command: 0x09 (9 decimal)
AT Command: ATCS
Binary Command: 0x1F (31 decimal)
Parameter Range: 0 - 4
Parameter
Configuration
0
RS-232 CTS flow control
1
RS-485 TX enable low
2
High
3
RS-485 TX enable high