Power Supply for Crestron Shade Motors
Crestron
CSA-PWS10S-HUB
Installation Guide – DOC. 7438A
Power Supply for Crestron Shade Motors: CSA-PWS10S-HUB
•
15
Problem Solving
Use the Right Wire
To ensure optimum performance over the full range of the installation topology, use Crestron Certified Wire only.
Failure to do so may incur additional charges if support is required to identify performance deficiencies because of
using improper wire.
Calculate Power
CAUTION:
Use only Crestron power supplies for Crestron equipment. Failure to do so could cause equipment
damage or void the Crestron warranty.
CAUTION:
Provide sufficient power to the system. Insufficient power can lead to unpredictable results or damage
to the equipment. Use the Crestron Power Calculator to help calculate how much power is needed for the system
When calculating the length of wire for a particular Cresnet run, the wire gauge and the Cresnet power usage of each
network unit to be connected must be taken into consideration. Use Crestron Certified Wire only. The wire gauge
and the Cresnet power usage of the run should be used in the following equation to calculate the cable length value
on the equation’s left side.
Cable Length Equation
L = Length of run (or chain) in feet
R = 6 Ohms (Crestron Certified Wire: 18 AWG (0.75 mm ))
or 1.6 Ohms (Cresnet HP: 12 AWG (4 mm ))
P = Cresnet power usage of entire run (or chain)
2
2
L < 40,000
R x P
Where:
Make sure the cable length value is less than the value calculated on the right side of the equation. For example, a
Cresnet run using 18 AWG Crestron Certified Wire and drawing 20 watts should not have a length of run more than
333 feet (101 meters). If Cresnet HP is used for the same run, its length could extend to 1250 feet (381 meters).
NOTE:
All Crestron certified Cresnet wiring must consist of two twisted pairs. One twisted pair is the
24
and
G
pair and the other twisted pair is the
Y
and
Z
pair.
Strip and Tin Wire
Strip the ends of the power supply wires carefully to avoid nicking the conductors. Twist together the ends of the
wires that share a pin on the network connector and tin the twisted connection. Apply solder only to the ends of the
twisted wires. Avoid tinning too far up the wires or the end becomes brittle. Insert the tinned connection into the
connector and tighten the retaining screw. Repeat the procedure for the other three conductors.
Further Inquiries
To locate specific information or resolve questions after reviewing this guide, contact Crestron's True Blue Support
at 1-888-CRESTRON [1-888-273-7876] or, for assistance within a particular geographic region, refer to the listing
of Crestron worldwide offices at
To post a question about Crestron products, log onto Crestron’s Online Help at
. First-
time users must establish a user account to fully benefit from all available features.
Future Updates
As Crestron improves functions, adds new features, and extends the capabilities of the CSA-PWS10S-CAEN and
CSA-PWS10S-HUB-CAEN-1X1, additional information may be made available as manual updates. These updates
are solely electronic and serve as intermediary supplements prior to the release of a complete technical
documentation revision.
Check the Crestron website periodically for manual update availability and its relevance. Updates are identified as
an “Addendum” in the Download column.
