• Multiple event tracking capability for up to 128 independent sensor circuits.
  • Summary relay contacts, LED status lights, LCD information display at the TTDM-128 panel.
  • Standard external interface modes include: dry contacts, and RS232/RS485 modbus communication. A 4-20 mA analog output option is available.
  • Event history accessible from the front panel or via serial port to identify type of event, time, location, and other parameters for all sensor events or user adjustments and interventions.
  • Layered password protection for setup changes.
  • Adjustable sensitivity and selectable measurement units.
  • Universal power supply for 110/220 Vac 50/60 Hz (24-volt option available).
  • Non-volatile memory for event history, setup and network configuration.
  • Complete remote operation and monitoring through modbus communications or using optional TT-SUPERVISOR Windows software.
Operating voltage 22 to 26 Vac, 3 W 12 Vdc +/– 10%, 2 W 92 to 132 Vac, 3 W 24 Vdc +/– 10%, 2 W 216 to 253 Vac, 3 W
Operating temperature 0°C to 50°C
Operating humidity 5% to 95% non-condensing
Communication protocol Modbus®, OptoMux™ or Johnson Controls Metasys™
Network configuration RS-485 two wire network, 9600 baud, addressable from 1 to 127
Maximum length of sensing cable 150 m (5000 ft)
Precision 0.5% of sensor length ± 0.6 m (2 ft)
Dimension 86 x 70 x 58 mm

TTDM-128 Physical Layout


Linkwise Technology is a designer, manufacturer and leading provider of smart monitoring controllers applicable in the data center, server room, facility, and different other applications and industries. Linkwise provides a comprehensive solution to every monitoring, automation and control, leak detection, and wireless communication needs, while at the same time keeping it simple and user-accessible.

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