Proxima ASA 7911 - Manual (Page 82)

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The four byte address field is the IP address of the destination
node. Broadcast addresses (for example, x.y.z.255) can also be
used.
Request Radio Signal Strengths
Purpose: To request the Serial Adapter to measure the strength of
RF energy on its current radio channel and report the signal
strength. The signal strength is reported as an 8-bit value from
00H (minimum signal value) to FFH (maximum signal value).
Response Expected from Serial Adapter = “Signal Strength
Report”
Message Format:
BYTE command (ASCII ‘R’, 52H)
BYTE seqno
Request Serial Adapter Version
Purpose: To request the physical address and version number of
the Serial Adapter. The address is reported as a 4 byte value, only
the lower 28 bits of which are meaningful. The version number is
reported as a 7 character string.
Response Expected from Serial Adapter = “Serial Adapter Ver-
sion Report”
Message Format:
BYTE command (ASCII ‘V’, 56H)
BYTE seqno