USL CMSA-100 - Manual (Page 9)

CMSA-100 Manual v131212 Page 9
through. For example, pressing the Preshow On button would close the normally open
contacts as long as the button is held down. The Preshow Off button would have no
function.

If installing into an equipment rack, install the mounting ears onto the CMSA-100
chassis and mount the unit in the rack. The CMSA-100 must be mounted in an enclosed
equipment rack if it is switching more than 24V.

Connect a safety ground to the ground stud on the rear panel of the CMSA-100. Run a
green or green/yellow #14AWG (2.5mm
2
) wire from the ground stud to the building
safety ground (such as grounded metal conduit).

Select the appropriate power adapter for the DC power supply and plug the supply into
the CMSA-100 and then to the power source. Confirm that the power LED on the front
panel of the unit is on to indicate the unit is powered.

Plan the functionality to be used and be sure the correctly rated cables are installed for
each automation function to be implemented. External overcurrent protection is
required to protect the relay contacts within the CMSA-100 and the associated wiring.
Ensure that the wiring connecting to the relay contacts on the CMSA-100 has
appropriate fuses, circuit breakers, or current limited power supplies.

Properly terminate each automation connection and securely fasten it into the
appropriate connector slot.

Install the connectors into the CMSA-100 to complete the CMSA-100 automation
wiring.

Use the front panel switches to selectively test each of the automation functions to be
sure they are working correctly.

Install a Cat -5 cable between the RJ45 connector labeled “CMS-2200” on the rear of
the CMSA-100 and the RJ45 connection labeled “Automation” on the CMS-2200.