F
LOW
default
valid range
S
ERDLY
Sets the serial flow control between the host and RPM3B.
Using no flow control enables the RPM3B to be used with a 3 wire serial link (TXD, RXD,
GND). Care must be taken in order to prevent overflowing the 96 byte serial receive buffer
in the RPM3B.
Using hardware flow control enables the RPM3B to control the flow of serial data being
received.
none
hw, none
Sets the serial data receive to packet transmit delay.
When the RPM3B receives the first byte of data from the host, it starts a timer running.
Either a full buffer of data to send or a timeout of this timer will allow the packet to be
transmitted.
Fine tuning this delay for the baud rate the RPM3B is operating at can significantly increase
throughput while reducing unnecessary transmissions.
2 (x10ms)
2 to 255 (x10ms)
Sets the action of the W
AKE
input.
Setting shutdown to
O
N
will cause the RPM3B to monitor the
WAKE
input. When
WAKE
is
taken high the RPM3B will be forced into low power sleep mode, thus reducing current
consumption. Subsequently lowering the
WAKE
input will bring the RPM3B out of low power
sleep mode.
SHDN should be set to
OFF
or WAKE pin should be pulled Low when the host (DTE) cannot
provide DTR control signal to wake RPM3B in a 3-wire serial interface.
On
on, off
Sets the number of data retry attempts.
RF interference can cause a transmitted data packet to be lost or corrupt on reception. If
this happens the RPM3B will retransmit any unacknowledged transfer. The transmission will
be retried the specified number of times before the link to the remote unit is considered ‘lost’
and the data purged.
5
1 to 63
Enables the startup message.
The startup message is enabled by default, thus giving an immediate indication of the
operation of the RPM3B. The message can be disabled prior to deployment of the RPM3B
module.
On
on, off
Enables transfer acknowledgements.
This function enables packet transfer acknowledgements to be returned for every outgoing
packet. Packet acknowledgements aid in the delivery of error free and consistent data
transfers between a pair of modems. Disabling the acknowledgements results in higher
data throughput between modems, but does not protect against lost data due to RF
interference. It should be disabled while using RPM3B in a broadcast mode.
On
on, off
Enables remote configuration.
Over-air remote configuration of a RPM3B module is possible once it has been enabled.
The remote command is used to send remote configuration commands. See the following
chapter for a overview of remotely configuring a RPM3B module.
On
on, off
Starts the radar test.
Used as a range or confidence test between RPM3B modules within the same
site.
Unit number between 0 and 15.
default
valid range
S
HDN
default
valid range
R
ETRY
default
valid range
S
TRTMSG
default
valid range
A
CKMODE
default
valid range
R
EMOTE
default
valid range
R
ADAR
parameter
Radiometrix Ltd.
UHF FM Radio Packet Modem
page 8
RADIOMETRIX [ RADIOMETRIX LTD ]
