Javad HPT901BT, Руководство пользователя

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Command Line Interface
Modem Commands
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Note:
Command “DATAMODE<CR><LF>” will be accepted as command “DATAMODE<CR>” and Data
Byte=0x0A.
• Unit immediately goes to datamode, so that the DTE can start sending data.
• The data received over the air goes from buffer to DTE. If you need clear the buffer before going
to datamode use the CLI command “DATAMOD<LF>”.
• If no valid CLI commands received from DTE within 1 minute, the unit will automatically switch
back to data-mode.
Note:
The data received over the air could be lost due to Rx buffer overflow if the unit stays in Maintenance
mode long time.
1.3. Software Switching to Data Route Mode
To switch to Data Route Mode the special byte-sequences with special meanings are used:
• Escape-Sequence: “####” with 20 ms guard time before and after the command characters;
• Escape-Acknowledge: “@00<CR><LF>”.
1.4. Return from Data Route Mode
• Command “MCU CLI OFF<CR>” returns modem from Data Route Mode.
• Unit immediately goes to datamode, so that the DTE can start sending data.
2. Modem Commands
2.1. LINK
The LINK command is responsible for configuring radio’s operation mode.
LINK [ Parameter Name ] [ Parameters List ] [ /? ]
LINK commands are as common so specific for two bands: 902-928 MHz band and 868-870 MHz band:
Parameter Name Parameter List
FEC 0 – Disable Forward Error Correction (a default setting)
1 – Enable Forward Error Correction
FHOP (0-9) - Frequency Hoping Pattern numbers for USA;
(10-19) - Frequency Hoping Pattern numbers for Australia;
For EU parameter FHOP not applied
MOD 5 - GMSK
PWRB (15 – 30) – RF output Power in dBm