Lennox BAC 024 SNM 3M, Installation, Operating And Maintenance Manual

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• 84 •
0
1
+VRL ( ≈ 30 Vdc)
2 GND
3 Rx/Tx-
4 RX/Tx+
5 GND
6 +VRL ( ≈ 30 Vdc)
BALTIC-IOM-0412-E / Control manual
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 DT50 dispatcher DOESN'T WORK and therefore connected displays don't work.
Terminal Wire function Connections
Earth Shield
1st pair A
2nd pair A
3rd pair A
3rd pair B
2nd pair B
1st pair B
CONNECTION ON THE DT50 SPLITTER
DT50 dispatcher installation guide
The board is equipped with three RJ12 phone jacks and a screw connector (SC).
Display's ferrites protection
To avoid appearance of RF interference that may cause destruction of components in the displays, you need to equip the cable of a
ferrite, during its installation (provided by LENNOX).
DISPLAY DM60