The TDM-500i is available in three configurations:

• TDM-500i – the standard version that uses 24 Vdc input
• TDM-500i/12 – an optional version that uses 12 Vdc input
• TDM-500iC – a cellular automatic dialer for GSM networks

The TDM-500i has the following features:

1. Programming phone numbers and recording messages integral to the dialer, without additional tools.
2. Programming of separate phone lists and messages for two distinct and separate incidents.
3. Programming up to 10 phone numbers for each incident (optionally, up to 32 numbers)
4. Up to 15-digit phone numbers
5. Digital display of phone numbers and control codes whilst programming and during normal operations
6. Bypass relay to allow connection to non-dedicated phone line
7. Pulse or tone (DTMF) dialing
8. Phone line monitoring, including reporting to the fire alarm control panel
9. Monitoring of the control panel’s control lines
10. Optional RS-232 interface
11. Password protection for programming and recording
12. Programmable delay for dialing through in-house telephone switchboards
13. Selectable triggering: either change-level or pulse (input pulse latching)
14. Adding, editing, displaying, and deletion of phone numbers
15. Optional printing of the dialing list and dialer configuration (requires tool P/N GSRS232)
16. Failure indication and programmable Open Collector (CNT) output
17. Recording and automatic playback of multiple messages:

• Message triggered by incident A, consisting of two linked segments: the first describes the incident (segment A, up to 10 seconds), and the second, location and telephone number (segment C, common to both ,messages, up to 20 seconds)
• Message triggered by incident B, consisting of two linked segments: the first describes the incident (segment B, up to 10 seconds), and the second, location and telephone number (segment C, common to both ,messages, up to 20 seconds)
• Or a common messages for both incidents (up to 40 seconds) – available from version 2.01.05