User's Manual

455U Radio Modem Module User Manual
Page 66 © November 2004
S25 0-255 System Address –Low Byte The 16-bit system address uniquely identifies
the radio network
S26 0-255 Lead-In Tone Time This selects the Lead-In tone period – units 4
mSec. The default (10) should not normally
be changed.
S27 0-255 Transmitter Hold-Up Time Selects How long the transmitter will stay on
waiting for more data before starting to send
the tail (mSec)
S28 0-255 Transmitter Tail Time Selects how long the transmitter will send a
“Tail” at the end of transmision. New data is
ignored during the tail time
S29 0-255 Unack Retries How many times to ret-transmit each
message in unacknowledged mode. Each
message is transmitted this number of times.
The sequence number and source address
ensure that repeat messages are ignored by
the receiver.
S30 0-255 Ackmode retries Number of times to re-try in acknowledged
mode if no Acknowledge response is
received..
S31 0-255 Radio Flags
This read-Only register indicates radio Tx
error flags
- 1 => Overtemperature Shutdown on
- 2 => PTT Timeout
- 4 => PLL Out of lock
- 8 => Antenna failure
S32 0-255 Module Temperature
This read-Only register indicates the module
temperature +50 (units °C)
S33 0-1 State of Digital Input
read-Only 0 for off, 1 for on.
S34 0-255 Battery Voltage
This read-Only register indicates the voltage
at the battery input (Units 0.1V)
S33 0-255 Supply Voltage
This read-Only register indicates the voltage
at the Supply input (Units 0.1V)