Crestron PAC2M User manual
The Crestron® PAC2M is a compact control system designed for small
lighting and automation applications.
In the Box
1 PAC2M, Professional Automation Mini Computer
Additional Items
4 Screw, 08-8B x 1/4 in., Phillips (2007277)
1 Cable, Interconnect, 22 AWG, 10 in. (4531256)
2 Assembly, 3-Pin, 3.5 mm plug with jumper wire (4502793)
2 Connector, 2-Pin (2003574)
8 Connector, 4-Pin (2003576)
1 Connector, 5-Pin (2003577)
1 Connector, 8-Pin (2003580)
1 Terminal Block, Bussing Strip (2003729)
1 Label, Cabinet Identification (2003925)
Install the Device
Mount the PAC2M in a CAEN
The PAC2M can be installed in both CAEN and CAENIB automation
enclosures. For simplicity in this guide, the term "CAEN" will be used.
CAUTION: The CAEN houses equipment that needs to be air cooled.
Therefore, mount it in a well-ventilated area. The ambient temperature
range must be 32°F to 104°F (0°C to 40°C). The relative humidity must
range from 10% to 90% (non-condensing). Allow adequate clearance
in front of the vented cover for servicing and ventilation.
NOTES:
lThe CAEN is intended for indoor use only.
lReliable earth grounding of equipment mounted in a CAEN
should be maintained. Particular attention should be given to
supply connections other than direct connections to the branch
circuit (for example, use of power strips).
lTo ensure access to the connectors and memory card slot at the
bottom of the PAC2M, mount the unit so that all CLX- (or
CLSI-) Series modules are above it within the CAEN.
Refer to the latest version of the CAEN Automation Enclosures
Installation Guide (Doc. 5940) and the CAENIB Automation Enclosures
Installation Guide (Doc 6562) at www.crestron.com/manuals for more
information on the CAEN and CAENIB.
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PAC2M QuickStart
Professional Automation Mini Control System for CAEN Automation System Enclosures
The PAC2M has two flanges that allow the unit to be mounted in a CAEN.
The following procedure assumes installation in a double-wide CAEN. A #2
Phillips screwdriver is required.
1. Use the #2 Phillips screwdriver to attach the four included self-tapping
screws (8B x 1/4 in.), screwing them in partially to allow room to
mount the PAC2M. Refer to the illustration that follows.
2. Mount the PAC2M in the CAEN, where the screws were attached,
sliding the unit to the right to ensure the screws fully engage the slots
in the flanges.
3. Tighten the screws.
NOTE: For installation in a single-wide CAEN, attach the right-side
screws (screw them in partially), mount the PAC2M on those screws,
and then attach the screws on the left. Fully tighten all screws.
PAC2M in a CAEN
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PAC2M QuickStart
Professional Automation Mini Control System for CAEN Automation System Enclosures
Power Options
The PAC2M can be powered via the 2-pin PWR connector or by an external
power pack (such as the PW-2420RU, sold separately) but not by both.
Using the PW-2420RU, the PAC2M can provide power to peripheral
Cresnet® devices (via the built-in Cresnet Hub/Repeater) up to a total of
45 Watts. If additional power is needed, Crestron recommends the
CNPWS-75, 75-Watt external power supply (sold separately).
Install the Bussing Strip
The PAC2M is supplied with a brass bussing strip to facilitate commoning
(linking) of multiple terminal block connections. The bussing strip is
constructed with four terminal block positions and may be trimmed to
size for various applications or different devices.
To utilize the bussing strip:
1. Determine the number of relays to be commoned for the equipment
being installed. If less than four, the strip can be trimmed to size with a
pair of scissors or wire snips.
2. Loosen the terminal block screws and insert the first leg of the bussing
strip into the first common position of the terminal block. The strip
engages the other common positions automatically.
3. Remove approximately 1/8 in. of the jacket from the common wire and
insert the conductor into one of the terminal block common positions.
Tighten the terminal block screws to lock the wire and bussing strip in
place. Insulate the strip by folding a piece of 3/4 in. wide vinyl electrical
tape over the spine and as much of the individual legs as possible.
Excess tape at each end of the strip should be pressed closed, then
trimmed to within approximately 1/16 in. of the end of the strip.
4. When wiring the remaining conductors, remove approximately 1/8 in.
of the jacket and insert the wires into the proper terminal block
positions. To prevent the possibility of electrical shorts, it is essential
that these conductors do not touch any uninsulated portion of the
bussing strip.
5. Securing a tie wrap around the bussing strip is a useful way to provide
strain relief for the wires connected to the terminal block.
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PAC2M QuickStart
Professional Automation Mini Control System for CAEN Automation System Enclosures
Connect the Device
Connect the device as called out in the following illustrations. Connect
power last.
PAC2M Front
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PAC2M QuickStart
Professional Automation Mini Control System for CAEN Automation System Enclosures
PAC2M Bottom
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PAC2M QuickStart
Professional Automation Mini Control System for CAEN Automation System Enclosures
Visit the Product Page
Scan the QR code to visit the product page.
PAC2M
www.crestron.com/model/6500159
Additional Information
Original Instructions
The U.S. English version of this document is the original instructions.
All other languages are a translation of the original instructions.
Crestron product development software is licensed to Crestron dealers and Crestron
Service Providers (CSPs) under a limited nonexclusive, nontransferable Software
Development Tools License Agreement. Crestron product operating system software is
licensed to Crestron dealers, CSPs, and end-users under a separate End-User License
Agreement. Both of these Agreements can be found on the Crestron website at
www.crestron.com/legal/software_license_agreement.
The product warranty can be found at www.crestron.com/warranty.
The specific patents that cover Crestron products are listed at
www.crestron.com/legal/patents.
Certain Crestron products contain open source software. For specific information, visit
www.crestron.com/opensource.
Crestron, the Crestron logo, and Cresnet are either trademarks or registered
trademarks of Crestron Electronics, Inc. in the United States and/or other countries.
Other trademarks, registered trademarks, and trade names may be used in this
document to refer to either the entities claiming the marks and names or their
products. Crestron disclaims any proprietary interest in the marks and names of
others. Crestron is not responsible for errors in typography or photography.
©2020 Crestron Electronics, Inc.
Doc. 6507B
04/16/20
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PAC2M QuickStart
Professional Automation Mini Control System for CAEN Automation System Enclosures
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