NAL Research Corporation (451-93156-009A)
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List the supported DP registration parameters. The response is in the form:
+WDAV:(supported <type>s),(supported <encrypt>s)
A.8.85 +SBDWB – Short Burst Data: Write Binary Data
Exec Command: +SBDWB=[<SBD message length>]
This command is used to transfer a binary SBD message from the DTE to the single mobile
originated buffer in the A3LA-RG. The mobile originated buffer can contain only one message at
any one time.
Once the command is entered, the A3LA-RG will indicate to the DTE that it is prepared
to receive the message by sending the ASCII encoded string “READY<CR><LF>” (hex
52 45 41 44 59 0D 0A) to the DTE.
The <SBD message length> parameter represents the length, in bytes, of the SBD
message not including the mandatory two-byte checksum.
The maximum mobile originated SBD message length is 1960 bytes. The minimum
mobile originated SBD message length is 1 byte.
Once the Dte receives the READY indication from the A3LA-RG, the SBD message must
be sent from the DTE formatted as follows:
{binary SBD message} + {2-byte checksum}
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The checksum is the least significant 2-bytes of the summation of the
entire SBD message. The high order byte must be sent first. For example if
the DTE were to send the word “hello” encoded in ASCII to the A3LA-RG
the binary stream would be hex 68 65 6c 6c 6f 02 14.
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The mobile originated buffer will be empty upon power-up.
If any data is currently in the mobile originated buffer, it will be overwritten.
Command Response:
0: SBD message successfully written to the A3LA-RG.
1: SBD message write timeout. An insufficient number of bytes were transferred to
the A3LA-RG during the transfer period of 60 seconds.
2: SBD message checksum sent from DTE does not match the checksum calculated at
the A3LA-RG.
3: SBD message size is not correct. The maximum mobile originated SBD message
length is 1960 bytes. The minimum mobile originated SBD message length is 1
byte.
A.8.86 +SBDRB – Short Burst Data: Read Binary Data
Exec Command: +SBDRB
This command is used to transfer a binary SBD message from the single mobile terminated
buffer in the A3LA-RG to the DTE. The mobile terminated buffer can contain only one message
at any one time.
The SBD message is transferred formatted as follows:
{2-byte message length} + {binary SBD message} + {2-byte checksum}
