Product manual

9XTend‐PKG‐R™RS‐232/485RFModem–ProductManualv1.2.4
©2005MaxStream,Inc.ConfidentialandProprietary 32
PW (Pin Wake-up) Command
<Sleep (Low Power)> Under normal operation, a
modem 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, the SLEEP Pin can be used
to awaken the modem from Cyclic Sleep. If the
SLEEP Pin is de-asserted (low), the modem will be
fully operational and will not go into Cyclic Sleep.
Once SLEEP is asserted, the modem 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.
AT Command: ATPW
Binary Command: 0x1D (29 decimal)
Parameter Range: 0 – 1
Parameter
Value
Configuration
0 Disabled
1 Enabled
Default Parameter Value: 0
Number of bytes returned: 1
Related Commands: SM (Sleep Mode), ST
(Time before Sleep)
RB (Packetization Threshold) Command
AT Command: ATRB
Binary Command: 0x20 (32 decimal)
Parameter Range: 0 – Current value of PK
Parameter (up to 0x800 Bytes)
Default Parameter Value: 0x800
Number of bytes returned: 2
Related Commands: BR (RF Data Rate), PK (RF
Packet Size), RO (Packetization Timeout)
<Serial Interfacing> RF transmission will
commence when data is in the DI Buffer and
either of the following criteria are met:
RO character times of silence 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).
RC (Ambient Power – Single Channel) Command
AT Command: ATRC
Parameter Range (read-only): 0 – 0x31 [dBm]
Number of bytes returned: 1
Related Commands: RM (Ambient Power – All
channels)
<Diagnostics> RC Command is used to examine
and report the power level on a given channel.
Sample output: -78 dBm [when CF = 0]
4e [when CF = 1]
-78 [when CF = 2]
RE (Restore Defaults) Command
<Diagnostics> RE Command is used to restore all
configurable parameters to factory default
settings. However, RE Command will not write the
default values to non-volatile (persistent) memory. Unless the WR (Write) Command is issued
after the RE command, the restored default settings will not be saved in the event of modem
reset or power-down.
AT Command: ATRE
Binary Command: 0x0E (14 decimal)
RM (Ambient Power – All Channels) Command
<Diagnostics> RM Command is used to examine
and report the power levels on all channels. If no
parameter is given, then the channels will be
scanned once. If a parameter is given, the
channels will be repeatedly scanned for that
number of seconds (up to 2000d), and the
maximum power level seen for each channel is reported (i.e. peak hold).
AT Command: ATRM
Parameter Range: no parameter – 0x7D0
(2000d)
Number of bytes returned: 2
Related Commands: RC (Ambient Power –
Single channel)