USL CMSA-100 - Manual (Page 8)

CMSA-100 Manual v131212 Page 8
Mounting
The CMSA-100 comes with two rack-mounting brackets. When attached in forward facing
position, they provide a 19-inch standard rack mount solution. They may also be
attached in a top or bottom facing position to provide a convenient wall or shelf mounting
solution. In all cases, USL recommends mounting the CMSA-100 to provide a stable
configuration and clean installation.
The four holes found on the rear tabs of the CMSA-100 provide a convenient location for
securing automation cables with cable ties. USL recommends carefully routing all
automation cables and securing them to provide strain relief and ease maintenance in the
future.
The CMSA-100 must be mounted in an enclosed equipment rack if it is switching more than
24 volts.
Dimensions
The CMSA-100 is designed to mount into standard 19” equipment rack and consume 1U of
rack space. The overall dimensions are, Height -1.7”, Width - 12.7”, Depth - 4.9” (43mm x
323mm x 124mm).
6. Installation
Proper installation of the CMSA-100 is dependent on the functions used and the exact
automation configuration that is required. Below is a checklist of installation steps that
should apply to all installations.

Unpack and confirm that all pieces of the CMSA-100 are present and have no shipping
damage.

Set the rear panel switches for pulsed or latched relay outputs. The 240V relay contacts
(Preshow and Option 3) can be configured for pulsed or latched outputs. If set to
latched, separate latch and unlatch buttons and CMS-200 commands are available to
latch and unlatch the relay. If set to pulsed, the button or command pulse is passed