Manual Documentation Number: MDRxxxxA-807
27
Black Box Corporation - 1000 Park Drive - Lawrence, PA 15055-1018
www.blackbox.com -- Tech Support and Ordering: 724-746-5500 - Fax: 724-746-0746
NB (Parity) Command
<Serial Interfacing>
Select/Read parity settings
for UART communications.
PC (Power-up Mode)
Command
<Command Mode Options>
PC Command allows the
module to power-up directly
into AT Command Mode from
reset or power-on. If PC
Command is enabled with SM
Parameter set to 1, DI3 (pin 2)
can be used to enter the
module into AT Command
Mode. When the DI3 pin is
deasserted (low), the module
will wake-up in AT Command
Mode. This behavior allows module DTR emulation.
PK (RF Packet Size)
Command
<Serial Interfacing> Set/Read
the maximum size of the RF
packets sent out a transmitting
module. The maximum packet
size can be used along with
the RB and RO parameters to
implicitly set the channel dwell
time.
Changes to this parameter
may have a secondary effect on the RB (Packet Control Characters) parameter. RB
must always be less than or equal to PK. If PK is changed to a value less than the
current value of RB, RB is automatically lowered to be equal to PK.
AT Command: ATNB
Binary Command: 0x23 (35 decimal)
Parameter Range: 0 – 5
Parameter Configuration
0
8-bit (no parity or 7-bit (any
parity)
1 8-bit
even
2 8-bit
odd
3 8-bit
mark
4 8-bit
space
5 9-bit
Default Parameter Value: 0
Number of bytes returned: 1
Minimum Firmware Version Required: 4.30
(previous versions did not support the 9
th
bit.
AT Command: ATPC
Binary Command: 0x1E (30 decimal)
Parameter Range: 0 – 1
Parameter Configuration
0
Power-up to Idle Mode
1
Power-up to AT Command
Mode
Default Parameter Value: 0
Number of bytes returned: 1
Minimum Firmware Version Required: 4.22
AT Command: ATPK
Binary Command: 0x29 (41 decimal)
Parameter Range: 0 – 0x100 [Bytes]
Default Parameter Value: 0x40 (64 decimal)
Number of bytes returned: 2
Related Commands: RB (Packetization
Threshold), RO (Packetization Timeout)
Minimum Firmware Version Required: 4.30
28
Manual Documentation Number: MDRxxxxA-807
Black Box Corporation - 1000 Park Drive - Lawrence, PA 15055-1018
www.blackbox.com -- Tech Support and Ordering: 724-746-5500 - Fax: 724-746-0746
PW (Pin Wake-up) Command
<Sleep (Low Power)> Under
normal operation, a module in
Cyclic Sleep Mode cycles from
an active state to a low-power
state at regular intervals until
data is ready to be received. If
the PW Parameter is set to 1,
SLEEP (pin 2) can be used to
wake the module from Cyclic
Sleep. If the SLEEP pin is de-
asserted (low), the module will
be fully operational and will not
go into Cyclic Sleep. Once
SLEEP is asserted, the
module will remain active for
the period of time specified by
ST (Time before Sleep) Command and will return to Cyclic Sleep Mode (if no data is
ready to be transmitted). PW Command is only valid if Cyclic Sleep has been
enabled.
RB (Packetization
Threshold) Command
<Serial Interfacing> RF
transmission will commence
when data is in the DI Buffer
and either of the following
criteria are met:
•
RO times out on the UART
receive lines
(ignored if RO = 0)
•
RB characters have been
received by the UART
(ignored if RB = 0)
If PK is lowered below the value of RB; RB is automatically lowered to match PK.
Note: RB and RO criteria only apply to the first packet of a multi-packet transmission.
If data remains in the DI Buffer after the first packet, transmissions will continue in
streaming manner until there is no data left in the DI Buffer (UART receive buffer).
RE (Restore Defaults)
Command
<Diagnostics> RE Command
restores all configurable parameters to factory default settings. However, RE
Command will not write the restored values to non-volatile (persistent) memory. Issue
the WR (Write) Command after the RE command to save restored parameter values
to non-volatile memory.
AT Command: ATPW
Binary Command: 0x1D (29 decimal)
Parameter Range:
0 – 1
Parameter Configuration
0
Disabled
1
Enabled
Default Parameter Value: 0
Number of bytes returned: 1
Related Commands: SM (Sleep Mode), ST (Time
before Sleep)
Minimum Firmware Version Required: 4.22
AT Command: ATRB
Binary Command: 0x20 (32 decimal)
Parameter Range: 0 – 0x100 [bytes](Maximum
value equals the current value of PK Parameter
(up to 0x100 HEX (800 decimal))
Default Parameter Value: 1
Number of bytes returned: 2
Related Commands: PK (RF Packet Size), RO
(Packetization Timeout)
Minimum Firmware Version Required: 4.30
AT Command: ATRE
Binary Command: 0x0E (14 decimal)
