CommScope Instruction Guide
860647713, Rev B, V.05
Page 8
38 Pages
► Door View Examples with Thermosiphon and Air Conditioner Units
Note: See Table A for CMC cooling configurations and cooling unit manual provided with the cabinet for
power, alarm, and network connections; operation, settings, and maintenance.
Door with Thermosiphon (T1-T3)
A thermosiphon (Figure 6) lowers the inside cabinet temperature by means of a refrigerant liquid that
absorbs heat from the interior heat exchanger of the unit and converts it to a gas. This exchange allows
the gas to move into the exterior heat exchanger where it is converted back into a liquid that delivers heat
out to exterior air.
■ All units have a DC power input and alarm output terminal block and RJ45 ports.
Door with Air Conditioner: DC Power (D1-D7)
A CMC cabinet may utilize a DC unit per cabinet configuration and operating requirements defined by
customer, Table A.
■ All units have power input and alarm terminal blocks, I/O and RJ45 ports, and an interface display.
Figure 6. CMC-28 Door Examples with Thermosiphon Units T1 and T2 per Table A
Figure 7. CMC-28 Door Examples with DC A\C Units D3 and D5 per Table A
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