The Telefire TDM-500i Intelligent Dialer is a sophisticated device designed for integration into fire, security, and safety detection systems. Its primary function is to automatically dial pre-programmed phone numbers and play pre-recorded voice messages when alarm or trouble events occur. This ensures that emergency services and key personnel are promptly notified of critical situations.
Function Description:
The TDM-500i operates by monitoring control lines from a connected fire or security control panel. Upon detecting an event (either an alarm or a trouble condition), it initiates a dialing sequence to a pre-configured list of phone numbers. Once a connection is established, the dialer plays a specific voice message tailored to the event, providing crucial information such as the nature of the event, location, and a contact telephone number.
The device supports two main configurations: the standard TDM-500i, which uses a 24Vdc input, and the TDM-500i/12, an optional version requiring a 12Vdc input. This flexibility allows for integration into various power supply environments.
Usage Features:
The TDM-500i offers a comprehensive set of features that enhance its usability and adaptability:
- Integrated Programming and Recording: Users can program phone numbers and record voice messages directly on the dialer without the need for additional external tools. This simplifies setup and on-site adjustments.
- Dual Event Handling: The dialer can be configured to handle two distinct and separate events (Event A and Event B), each with its own dedicated phone lists and messages. This allows for differentiated responses to various types of emergencies.
- Extensive Phone Number Capacity: For each event, the TDM-500i can store up to 10 phone numbers, with an optional expansion to 32 numbers. Each number can be up to 15 digits long, accommodating a wide range of contact numbers.
- Digital Display: A digital display shows phone numbers and control codes during both programming and normal operation, providing clear visual feedback to the user.
- Bypass Relay: A bypass relay allows the dialer to connect to a non-dedicated phone line, ensuring that the line remains available for regular use when the dialer is not actively transmitting.
- Dialing Methods: The dialer supports both pulse and tone (DTMF) dialing, making it compatible with various telephone systems.
- Phone Line Monitoring: The TDM-500i continuously monitors the phone line for errors and can report these conditions to the connected fire alarm control panel. In case of a line failure, the dialer will emit a beep as an indication, which can be silenced using the Exit key.
- Control Panel Monitoring: It also monitors the control panel's control lines, ensuring proper integration and response to system status changes.
- Optional RS-232 Interface: An optional RS-232 interface is available for advanced connectivity, such as printing dialing lists and dialer configurations using a serial printer (requires GSRS-232 tool).
- Password Protection: Programming and recording functions are protected by a password, preventing unauthorized access and tampering. The default password is "9241".
- Programmable Dialing Delay: A programmable delay can be set for dialing through in-house telephone switchboards, accommodating internal phone system requirements.
- Selectable Triggering: The dialer supports selectable triggering modes: either change-level or pulse (input pulse latching), offering flexibility in how events initiate dialing.
- Comprehensive Phone Number Management: Users can easily add, edit, display, and delete phone numbers within the dialing lists.
- Multiple Message Recording and Playback: The dialer supports the recording and automatic playback of multiple messages. When configured for multiple messages, it uses three distinct segments:
- Message A: Describes Event A (up to 10 seconds).
- Message B: Describes Event B (up to 10 seconds).
- Message C: Provides location and telephone number for confirmation (common to both events, up to 20 seconds).
- Alternatively, a single common message of up to 40 seconds can be recorded for both events (available from version 2.01.05).
- Failure Indication and Open Collector Output: The device provides failure indications and includes a programmable Open Collector (CNT) output for connecting to external equipment. It is crucial to connect only equipment that draws less than 150mA to this output.
- Buzzer Silence for Telephone Line Errors: A feature to silence the buzzer for telephone line errors is available from version 2.01.05, improving user experience by allowing temporary silencing of nuisance alarms.
- Configurable Input Activation Polarity: The activation polarity for inputs A and B can be selected as either positive or negative level (available from version 2.01.05), offering greater compatibility with different control panel outputs.
Maintenance Features:
The TDM-500i is designed with several features that aid in maintenance and troubleshooting:
- Non-Volatile Memory: Programmed data, including phone numbers and configurations, is retained in non-volatile memory even without a power source, ensuring data integrity during power outages or system restarts.
- Error Message Display: The dialer displays error messages by flashing specific digits, providing immediate feedback on system issues. Common error messages include:
- E01 (Checksum error): Indicates a data integrity issue. Resolution involves entering and exiting programming mode.
- E02 (Data mismatch): Suggests a configuration problem. The recommended resolution is to restore factory defaults and reprogram the device.
- E03 (Empty or damaged dialing list): Indicates that no phone numbers are programmed. Resolution requires programming at least one number.
- E10 (Missing Message): Occurs when messages are not recorded or when the dialer configuration for messages has changed (e.g., from multiple to single messages or vice versa). Resolution involves recording the appropriate messages.
- Factory Default Restoration: The device allows for easy restoration to factory default settings, which can be useful for troubleshooting or reconfiguring the dialer from scratch.
- Password Change Functionality: The password can be changed, allowing for enhanced security management over time.
- Listening to Recorded Messages: After recording, messages can be played back immediately. A loudspeaker can be connected to the SP connector to listen to the messages, facilitating verification of recordings.
- Grounding Importance: Proper grounding of the dialer is emphasized as crucial for preventing improper operation, highlighting a key maintenance consideration during installation and troubleshooting.
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