The Nokia 30 GSM Connectivity Terminal is a device designed for machine-to-machine (M2M) communication, operating on EGSM 900/GSM 1800 networks. It integrates a GSM transceiver with built-in data capabilities, a SIM card reader, an internal antenna, and an external antenna connector. The device also features an M2M system connector for interfacing with external equipment.
Function Description:
The Nokia 30 serves as a connectivity hub, enabling remote control and monitoring of devices or machines via text messages (Short Message Service - SMS). It supports three distinct operation modes:
- User Control Mode: In this mode, the terminal is controlled by a mobile handset, typically using predefined text message templates. These templates instruct the Nokia 30 to control or monitor an attached device through its M2M system connector. The terminal processes received SMS commands, executes the requested actions, and sends a response back to the command originator. Recognized commands are deleted after processing, while unrecognized commands are stored on the terminal or SIM.
- AT Command Mode: In this mode, the Nokia 30 functions as a GSM data modem, controlled by AT commands. This allows for more direct and programmatic interaction with the GSM network functionalities.
- M2M System Mode: When operating in this mode, the Nokia 30 integrates as part of a Nokia M2M Platform, utilizing CORBA messaging for communication and control.
The core functionality revolves around its general-purpose inputs and outputs available through the M2M System Connector. These I/O pins allow the Nokia 30 to interact with and manage external devices.
Important Technical Specifications:
- Network Compatibility: EGSM 900/GSM 1800 networks.
- Connectivity: GSM transceiver with data capabilities, SIM card reader, internal antenna, external antenna connector, M2M system connector.
- Inputs: The terminal features three general-purpose inputs (Input 1, Input 2, Input 3) on the M2M system connector. These inputs can be configured to operate in either digital (on/off) or analog (continuous signal) mode.
- Input 1: Pin 31
- Input 2: Pin 33
- Input 3: Pin 36
- Outputs: The terminal provides five general-purpose outputs (Output 1, Output 2, Output 3, Output 4, Output 5) on the M2M system connector. These outputs can only be used in digital mode (set something on/off).
- Output 1: Pin 37
- Output 2: Pin 39
- Output 3: Pin 40
- Output 4: Pin 42
- Output 5: Pin 43
- Power Supply Output: The device also includes a controllable power supply output (Supply Pwr) on Pin 11 of the M2M System Connector, which can be used to power the attached application.
- Message Identifier: A mandatory parameter (0-8 ASCII characters, case sensitive) that initiates every text message template for controlling the terminal.
- Password: An optional parameter (0-8 ASCII characters, case sensitive) for securing communication.
- Authorization Number: An optional parameter (up to 32 digits, including '+') to restrict control requests to a specific phone number.
- Analog Input Range: 0-5400 mV.
Usage Features:
The Nokia 30 is designed for user-friendly configuration and remote control, primarily through SMS in User Control Mode.
- Security Settings:
- Message Identifier: Essential for activating the User Control Mode. It acts as the "name" of the terminal and must precede any command sent via SMS. Configured using the Nokia 30 Configurator software.
- Authorization Number: An optional security layer that restricts command acceptance to a single, pre-specified phone number. If a command is received from an unauthorized number, the terminal sends an "Invalid Originator" message to the authorized number. Configured via the Nokia 30 Configurator.
- Password: An optional password can be set to further secure communication. The password must be included in SMS commands. It can be activated/changed using the Nokia 30 Configurator or via an SMS command.
- Input Mode and Initial Output State Configuration:
- Input Configuration: Each input can be configured as either digital (for on/off information) or analog (for continuous signals) using the Nokia 30 Configurator (Remote I/O Control -> General).
- Output Configuration: The initial state (ON/OFF) of each output pin can be set via the Nokia 30 Configurator (Remote I/O Control -> General).
- SMS Center Number: The SMS Centre Number must be configured for the service to operate. This is done through the Nokia 30 Configurator (GSM Settings -> Advanced -> Short messages).
- Connecting Devices: External devices are connected to the Nokia 30 via the M2M System Connector. Detailed electrical specifications and recommended connector types are available in separate documentation.
- Command Syntax: Commands are sent as text messages. The syntax varies based on whether a password is activated:
- Without Password:
X Y (X=Terminal Name, Y=Command) e.g., Nokia30 Output_Set All On
- With Password:
X Y Z (X=Terminal Name, Y=Password, Z=Command) e.g., Nokia30 password Output_Set All On
- Commands are not case sensitive, except for the password. Only one space character is accepted between words.
- Command Templates: A comprehensive list of commands is supported for various operations:
- Password Management:
Change_Pword to change or activate/deactivate the password.
- Reading Inputs:
Input_Get All to retrieve states of all inputs, or Input_Get Z (where Z is 1, 2, or 3) for individual input states. Responses indicate ON/OFF for digital inputs or mV values for analog inputs.
- Subscribing Input Events:
Input_Get_Change All or Input_Get_Change Z to subscribe to state changes of inputs. Events are sent as alarms to a specified phone number. Digital input alarms trigger on state change (0->1 or 1->0). Analog input alarms trigger when the value equals or exceeds a high limit, or equals or falls below a low limit, checked periodically. Input event settings (alarming, high/low limits, period) are configured via the Nokia 30 Configurator.
- Reading Outputs:
Output_Get All to retrieve states of all outputs, or Output_Get Z (where Z is 1-5) for individual output states. Responses indicate ON/OFF.
- Writing Outputs:
Output_Set Z On/Off (where Z is 1-5) to set individual output states, or Output_Set All On/Off to control all outputs simultaneously.
- Controlling Power Supply:
Supply_Pwr_Get to read the state, Supply_Pwr On to turn on, and Supply_Pwr Off to turn off the power supply output.
Maintenance Features:
- Configuration Software: The Nokia 30 Configurator software is the primary tool for initial setup and ongoing configuration of security settings, input modes, output states, and SMS center number.
- Parameter Changes: It is recommended to switch the terminal off and on after changing parameters to ensure settings are applied correctly.
- Error Handling: If a command string is not recognized (but the identifier and password are correct), the terminal responds with an "ERROR (Unknown Command)" message.
- Unrecognized Commands: Unrecognized commands are stored on the terminal or SIM as normal messages, allowing for later review.
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