Only use Thermocable ProReact EN Digital Linear Heat Detection cable with the DSCU-EN sensor control unit. Test the Digital Linear Heat Detection cable before connecting it to the DSCU-EN using a multimeter.
The unit is intended to be installed between the Digital Linear Heat Detection cable and dual zone module for monitoring up to two zones of Thermocable a conventional or addressable fire alarm control panel. It has power, ProReact EN Digital Linear Heat Detection (LHD) Cable.
(28AWG) to 4mm (11AWG) Supervised Circuits: Power, Input Zone 1 & Input Zone 2 Inputs: Up to two Class B zones of Thermocable ProReact EN Digital LHD Cable ...Max Zone Length 1000m (3,280ft) ...Min Zone Length ...End of line resistor 3.6kohm (included)
Overview The DSCU-EN allows accurate location of an alarm point along a length of Thermocable ProReact EN Digital Linear Heat Detection (LHD) cable. It continuously monitors up to two zones of Digital LHD cable for a fault (open circuit) or an alarm (overheat or fi re condition). Because of the wide range of applications that Digital LHD cable can be used for, it may not always be possible, or be too time consuming, to locate where along the cable an alarm has occurred.
DSCU-EN PCB. Do not remove or break this jumper when the system is used with an EN54 fire alarm system in the wiring configuration shown. Page 7 of 17 Revision 1.1 Sept 2019 Document No. ProReact DSCU-EN Installation Manual...
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DSCU-EN PCB. Do not remove or break this jumper when the system is used with an EN54 fire alarm system in the wiring configuration shown. Page 8 of 17 Revision 1.1 Sept 2019 Document No. ProReact DSCU-EN Installation Manual...
In certain applications it may be desirable or necessary to use non- The DSCU-EN is intended to be wall-mounted. 4 holes should be drilled sensing leader cable between the ProReact DSCU-EN unit and the according to the mounting dimensions given in fi gure 2. The Digital LHD cable.
IS barriers and LHD cable connected to the DSCU-EN unit, short out the connection at the start of the LHD cable. Select “Yes” and press Set to continue. Page 10 of 17 Revision 1.1 Sept 2019 Document No. ProReact DSCU-EN Installation Manual...
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18. Select the number of stop bits for the Modbus RTU/ASCII output. (1 or 2). Stop BITs 19. Select the parity for the Modbus RTU/ASCII output. (even/odd/none). PariTY Even Page 11 of 17 Revision 1.1 Sept 2019 Document No. ProReact DSCU-EN Installation Manual...
{Zone 2: OK Either of the display screens above and a single flashing Power light (green colour) should be visible when ProReact DSCU-EN unit is in normal operation. Page 12 of 17 Revision 1.1 Sept 2019 Document No.
Zone 2: FAUL T both SET and SELECT buttons for 10s or more until the device resets. Interlock mode {Zone 1 : FAUL T {Zone 2: FAUL T Page 14 of 17 Revision 1.1 Sept 2019 Document No. ProReact DSCU-EN Installation Manual...
Two-wire RS-485 Modbus RTU/ASCII Communications The Thermocable ProReact DSCU-EN includes a two wire RS-485 Modbus output which can be enabled to output the status of each zone of Digital Linear Heat Detection cable. The DSCU-EN Modbus output supports the Modbus RTU/ASCII protocol and the following functions: •...
Modbus setup will all require selecting after this procedure. To reset the ProReact DSCU-EN unit back to the factory state, when the unit is powered up and in normal operation (see step 20 in the Commissioning procedure), press and hold the SET and SELECT buttons for a minimum of 10 seconds continuously.
Zone – a single circuit of ProReact linear heat detection cable connected across either a ProReact DSCU-EN or a fi re panel and an end of line resistor Email: info@thermocable.com...
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