User's Manual

47
Response
xxx : current value (reference)
P0 : command accepted (setting)
N0 : command error
Function
References or sets the destination address of the modem connection established
with in the data transparent mode and headerless stream mode
The current DAS value can be referenced by entering the command with no
parameter.
The DAS command is used for temporary modifying destination address.
Change the value of REG02 to change the default value.
Example
>
@ DAS002 CR/LF : set the destination address to 002
<P0
CR/LF : command accepted
> @ DAS CR/LF : reference the destination address
<002
CR/LF : current value output (002)
Notes
This command cannot be used in packet transmission mode.
The local station address (REG00) must be set to communicate with the remote
modem. Communication cannot be established unless the addresses coincide with
each other.
This command is not arrowed to use in 485 mode.
DBM Read Signal Strength
Syntax
DBM{Local Station Address}
Local Station Address : local station address for 485 mode (000 to 999).
Response
-xxxdBm : signal strength
N0 : command error (Except 485 mode)
Function
Reads the received signal strength and outputs the value in dBm.
Higher values represent stronger signal strength and better receiving conditions.
Example
> @ DBM CR/LF : read signal strength
<-78dBm
CR/LF : signal strength is -78dBm.
Notes
The range available for measurement is –40 dBm to –100 dBm. Since the signal
strength indication has a slight error in its value, use this result for your ‘rule of a
thumb’ reference.
This command outputs the strength of last received packet.