Jenn-Air 1300, 1892 manual List of Commands, Command Mode, Okcrlf

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4LIST OF COMMANDS:

4.1Command Mode

The modem is configurable through the RS232 port. The Command Mode has to be activated to do this, as detailed in the following paragraphs:

4.1.1Activation of the Command Mode:

The Command Mode is activated with the string: <wait>+++<wait> <CR><LF>

Where <wait> is a programmable period after transmitting data (which is set by register S154) which has a nominal value of 10ms.

The modem responds with:

OK<CR><LF>

The modem is now ready to be configured. Transmitting or reception is blocked during Command Mode.

If the "+++" string is input without a <CR><LF> then the string is transmitted as normal data. Note that one or more consecutive “+” characters in the input data are held in the modem until it is determined that it is not a “+++” string.

The configuration mode is only accepted if the RTS line is set. The “+++” string is only accepted if this string is the first three characters and there has been no data for greater than the time set by register S154.

The +++ string is only transmitted over the air if embedded in a data string as described above.

Important: any configuration changes made are only saved to the non-volatile memory after a write command (AT &W).

Note that the communication parameters (baudrate etc) are the programmed parameters.

Hermes Operator Note

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Contents Lattice House Baughurst Basingstoke UK RG26 5LP Specialist RF DesignsTel +44 0 118 981 Fax +44 0 118 981 Received Signal Strength Indication Rssi AT S156 Table Of ContentsHandshaking Operation During Transmit and Receive List of Figures List of TablesIntroduction Connections & Indications RS232 ConnectorPin No Function RF Connector Power ConnectorFront Panel Indications Modem Operation IntroductionRS232 Data Handling Data Transfer ModesReceive-to-Transmit Turnround Description Time msMAX Command Mode List of CommandsOkcrlf Command Syntax ErrorcrlfBaud Rate AT B0 Parity ATB1Format Mode AT F AT F?CRLFOK Crlf Engineering Test Modes ATRXX, Dxxxcrlf ATI9CRLF Command Mode Guard Time AT S154Software Version Information AT Centre Radio Frequency AT S155Rssi Level Level at RF Input dBm ±2dB Radio Channel AT S157 Data Quality AT S158Squelch AT S159 Squelch Level Level at RF InputPower Level Output Power DBm Tolerance Nominal Transmission Power AT S160Output Power for 1W G-MAX Output Power for 2W G-MAX Level NominalChannel Step Size AT S161 Test Message Period AT S162Over-Air Symbol Rate AT S163 Note engineering function only Preamble Period AT S165 Note engineering function onlyInvert Symbol AT S167 Frame Synch Tolerance AT S166 Note engineering function onlySquelch Delay AT S168 Save parameters AT &W Restore defaults AT &Y8Radio Frequency AT &F AT &WCRLFDisplay parameters ATT? ATT?CRLFDo not enter unless you wish to carry out a code load Ppppppppppppppppppppppppppppppppppppppppppppppppppppp Hardware Specification RS232 Port ParametersRadio Specifications Parameter Max SXn50Mechanical Specification EnclosuresFront View of Casting Type Approvals Vibration SpecificationsOperating conditions EMC