Product manual

XStream‐PKG‐R™RS‐232/485RFModem–ProductManualv4.2B
©2005MaxStream,Inc.Confidential&Proprietary   24
BT (Guard Time Before) Command
AT Command: ATBT
Binary Command: 0x04 (4 decimal)
Parameter Range: 2 – 0xFFFF
[x 100 milliseconds]
Default Parameter Value: 0x0A (10 decimal)
Number of bytes returned: 2
Related Commands: AT (Guard Time After), CC
(Command Sequence Character)
<Command Mode Options> BT Command is
used to set the DI pin silence time that must
precede the command sequence character (CC
Command) of the AT Command Mode Sequence.
Refer to the AT Commands section [p17]to view
the default AT Command Mode sequence.
CC (Command Sequence Character) Command
AT Command: ATCC
Binary Command: 0x13 (19 decimal)
Parameter Range: 0x20 – 0x7F
Default Parameter Value: 0x2B (ASCII “+” sign)
Number of bytes returned: 1
Related Commands: AT (Guard Time After), BT
(Guard Time Before)
<Command Mode Options> CC Command is
used to set the ASCII character to be used
between Guard Times of the AT Command Mode
Sequence (BT+ CC + AT). The AT Command
Mode Sequence activates AT Command Mode
(from Idle Mode).
Refer to the AT Commands section [p17]to view
the default AT Command Mode sequence.
CD (DO3 Configuration) Command
AT Command: ATCD
Binary Command: 0x28 (40 decimal)
Parameter Range: 0 – 2
Parameter
Value
Configuration
0 RX LED
1 Default high
2 Default low
3
Assert only when packet
addressed to module sent
Default Parameter Value: 0
Number of bytes returned: 1
Minimum Firmware Version Required: 4.2B
<Command Mode Options> CD Command is
used to redefine the behavior of the DO3/RX LED
line.
CN (Exit AT Command Mode) Command
AT Command: ATCN
Binary Command: 0x09 (9 decimal)
<Command Mode Options> CN Command is
used to explicitly exit AT Command Mode.
CS (DO2 Configuration) Command
AT Command: ATCS
Binary Command: 0x1F (31 decimal)
Parameter Range: 0 – 4
Parameter
Value
Configuration
0 RS-232
flow control
1 RS-485 TX enable low
2 high
3 RS-485 TX enable high
4 low
Default Parameter Value: 0
Number of bytes returned: 1
Related Commands: RT (DI2 Configuration), TO
(DO2 Timeout)
Minimum Firmware Version Required: 4.27D
<Serial Interfacing> CS Command is used to
select the behavior of the DO2 pin signal. This
output can provide RS-232 flow control, control
the TX enable signal (for RS-485 or RS-422
operations), or set the default level for the I/O
line passing function.
By default, DO2 provides RS-232
(Clear-to-
Send) flow control.