DC-DM-ROOFTOP-IOM-1801-E - 28 -
4.2 Connection on the splitter DT50
The display DM connects to Climatic™ on the screw terminals of the card DT50.
4.2.1
Installation Guide dispatcher DT50
The board is equipped with three RJ12 phone jacks and a screw connector (SC).
Jumpers:
The "displays" are directly supplied by the Climatic™ board with a 30 VDC power supply. Pay attention to the value of
this voltage when multiple cards are used.
J14 and J15 closed or cut the power supply:
J14 and J15 set between 1-2:
Connectors A, B, C and SC are in parallel. Power is available on all connectors.
J14 and J15 set between 2-3:
B and C connectors are supplied in parallel but the connectors A and SC are not.
Displays connected to these ports are not powered.
If J14 and J15 are set differently, the dispatcher DT50 DOESN'T WORK and therefore displays connected don't work
4.3 Ferrites Protection of Displays
To prevent radio interference that may cause miscommunication or destruction of elements on the screen, you need
to equip each end of the cable a ferrite (supplied by Lennox).
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