DLI-2K Digital Location Interface (Monitoring Distance 2Km)

The Digital Location Interface (DLI) monitors the Linear Heat Detection cable and identifies the location of the active alarm. The distance is then displayed in meters on the 3½ digit LCD. 

The DLI is able to monitor up to 2000m for both Fire and Fault conditions. This enhances any fire detection capability and allows an appropriate action to be taken. 

The DLI also offers flexible interface options, designed as a two-wire device for connecting directly into a conventional fire alarm panel. It also has the ability to signal via volt free relay contacts for Fire and Fault, plus a 4-20 mA output. 

IP 65 weatherproof lockable Polycarbonate enclosure with M20 and M25 cable gland knockouts. 



Technical Description – DLI-2K Digital Location Interface


  • Display of Alarm location for the complete length of cable.
  • 3½ Digit LCD.
  • LED Fire and Fault indicators.
  • Fire and Fault Test Functions.
  • Suitable for monitoring hazardous area applications using safety barriers.
  • IP 65 Housing (DIN Rail options available).
  • Volt free relay outputs for Fire and Fault. 4 – 20mA output.
  • Configurable for 2 wire mode.
  • Remote reset input.


  • Power Generation.
  • Cable Trays / Tunnels.
  • Road and Rail Tunnels.
  • Car Parks.
  • Conveyors (Bearing) protection.
  • Storage racks warehouse Refrigerated rooms and cold stores.
  • Petro-chemical storage tanks, rim seal.
Linesense DLI-2K  Digital Location Interface  (Monitoring Distance 2Km)

The Specs at a Glance

Operating voltage: 14 – 30 VDC Two wire mode

20 – 30 VDC Relay mode

Operating Current Normal: 1.5 mA Two wire mode

11 mA Relay mode

Fire Alarm (max): 13 mA Two wire mode

29 mA Relay mode

Fault Condition: 700 uA
Fire: 2 x VFCO relays, 1 amp 24 VDC / 120 VAC
Fault: 2 x VFCO relays, 1 amp 24 VDC / 120 VAC

4 – 20 mA signal loop output

Input: Remote Reset
Maximum length of LHD: 2,000m

Data Sheet – DLI-2K Digital Location Interface

SIL2 Certificate

Hover Box Element

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