Crestron CNXCPU CNX Control Processor Card
Contents
CNX Control Processor Card: CNXCPU 1
Description 1
Functional Description 1
Physical Description 1
Leading Specifications 4
Setup 4
Installation or Replacement 4
Hookup 5
Programming with SIMPLTM Windows 6
Problem Solving 6
Troubleshooting 6
Further Inquiries 6
Return and Warranty Policies 7
Merchandise Returns / Repair Service 7
CRESTRON Limited Warranty 7
Operations & Installation Guide - DOC. 8135 Contents •• i
Crestron CNXCPU CNX Control Processor Card
(12.70 cm)
CNX Control Processor Card:
CNXCPU
Description
Functional Description
The CNX Control Processor Card, CNXCPU, CNXCPU Physical View
is the central processor unit of the CNX Modular
Control System. The CNXCPU performs the
execution of the SIMPL Windows program and
SIMPL+ programs as well as managing the
Cresnet network and the expansion cards
installed in the control system. The CNXCPU
requires an external power supply, CNPWS-75
(sold separately).
The CNXCPU features Crestron’s exclusive
DPA (Direct Processor Access) slot for
Ethernet/LAN expansion of the control network.
This slot provides high-speed access to the
processor, allowing high-bandwidth network
connections. The DPA permits 10BaseT and is
ready to support Firewire, ATM, 100BaseT and
other future protocols.
Physical Description
The CNXCPU, shown at the right, is a circuit
board fastened to an aluminum faceplate. The
faceplate contains one computer port, two
Cresnet connectors, and two LED indicators.
The circuit board (not shown) contains the DPA
slot that is used by the optional Ethernet
Expansion Card. The LAN/DPA port on the
faceplate is available when that card is installed.
The ports, connectors and indicators are
described on the next page.
COMPUTER
CNXCPU
CONTROL
PROCESSOR
PWR
NET
24
Y
Z
G
CRESTRON
1.56 in
(3.96 cm)
LAN
DPA
C
R
E
S
N
E
T
5.00 in
Operations & Installation Guide - DOC. 8135 CNX Control Processor Card: CNXCPU •• 1
CNX Control Processor Card Crestron CNXCPU
COMPUTER
CNXCPU Ports
The CNXCPU contains a COMPUTER port, two CRESNET connectors, and a DPA
slot. When the optional Ethernet Expansion Card is installed, the LAN/DPA port on
the faceplate is available. The ports are described below:
COMPUTER
Computer Port
This 9-pin DB9 female RS-232 connector is used when programming the CNXCPU
with a PC. A standard DB9 male (attached to the CNXCPU) to DB9 female
(attached to the PC) straight-through serial cable (not supplied) is used to
communicate with the port. Additionally, there is a DB9 female connector on the
front panel of the control system and both ports are electrically connected. The ports
are modem compatible but the null modem cable is not included.
CRESNET
Cresnet 4-Wire and 6-Pin Connectors
24
Y
Z
G
C
R
E
S
N
E
T
This 4-wire male connector (typical Crestron network port labeled 24 Y Z G) is used
to provide 24VDC power via an external power supply that is sold separately.
Crestron recommends specific power supplies for its network devices. The
recommended power supply for the CNXCPU is Crestron part number CNPWS-75
and for international configurations, part number CNPWSI-75.
The 6-pin RJ-type modular connector is used for expansion to (or from) SmarTouch
and Cresnet peripherals.
NOTE: If using the modular connector, review the latest revision of the Crestron
Network Modular Cable Requirements (Doc. 5682). Most 6-conductor telephone
cables are wired in a crisscross fashion and are not compatible with Crestron
equipment.
2 •• CNX Control Processor Card: CNXCPU Operations & Installation Guide - DOC. 8135
Crestron CNXCPU CNX Control Processor Card
DPA Slot
Side View of CNXCPU
ETHERNET
EXPANSION CARD
MOUNTING POINTS
OPENING
FOR DPA/LAN
PORT
DPA
CONNECTOR
The DPA slot is used by the optional Ethernet Expansion Card. The slot consists of
card mounting points, a DPA/LAN port opening, and a 26-pin female DPA
connector. The Ethernet Expansion Card is mounted to the rear of the faceplate and a
26-pin male connector attaches to the DPA slot. Refer to the CNXENET Ethernet
Expansion Card Operations & Installation Guide (latest revision of Doc. 8129) for
further information.
LAN/DPA
Optional LAN/DPA Port
LAN
DPA
This 8-pin RJ-type port is used to connect the control network to an Ethernet/LAN. It
is part of the optional Ethernet Expansion Card.
CNXCPU Indicators
The CNXCPU contains two LED indicators located on the faceplate. The indicators
are described below:
PWR
This green LED illuminates when the CNXCPU is connected to and receives power
from the CNPWS-75 External Power Supply (sold separately)
NET
This yellow LED illuminates when the CNXCPU is processing or communicating
with system hardware. Examples are button presses at a Touchpanel, data being sent
through the computer port, or a permanent memory image being created.
Operations & Installation Guide - DOC. 8135 CNX Control Processor Card: CNXCPU •• 3
CNX Control Processor Card Crestron CNXCPU
SPECIFICATION
DETAILS
Leading Specifications
The table below provides a summary of leading specifications for the CNXCPU.
Dimensions are approximations rounded to the nearest hundredth unit.
Leading Specifications of the CNXCPU
Power Requirements 24VDC from the CNPWS-75 External
Connector 26-pin DPA connector for optional
Dimensions & Weight Height: 5.00 in (12.70 cm)
Power Supply (not provided), load factor
of 4 Watts. (With optional Ethernet
Expansion Card installed, load factor is 8
Watts.) *
Ethernet Expansion Card.
Width: 1.56 in (3.96 cm)
Depth: 6.65 in (16.89 cm)
Weight: 5.30 oz (0.15 kg)
* CAUTION: The total load factor of the CNXCPU depends upon the
components of the control system. Add the power requirements of the CNXCPU
plus the control system requirements plus the combined requirements of the
remaining expansion cards. Do not exceed 75 watts for total load factor.
As of the date of manufacture, this unit has been tested and found to comply with
specifications for CE marking.
NOTE: This device complies with part 15 of the FCC rules. Operation is subject to
the following two conditions: (1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that may
cause undesired operation.
Setup
Installation or Replacement
When shipped, the Modular Control System has the CNXCPU installed. The
procedure on the next page can be used to install (or re-install) or replace the
CNXCPU. Items required to install or replace the CNXCPU are already attached to
the unit. The only tool required is a grounding strap.
CAUTION: The CNXCPU contains electrostatic sensitive devices (ESD); observe
precautions for handling ESDs to avoid damaging the card.
CAUTION: The Modular Control System contains CNX expansion card slots and a
double-sized CPU slot for the CNXCPU. Do not attempt to install the CNXCPU into
any slot other than the slot labeled CPU.
4 •• CNX Control Processor Card: CNXCPU Operations & Installation Guide - DOC. 8135
Crestron CNXCPU CNX Control Processor Card
1. Disconnect power from the control system.
2. If applicable, loosen the thumb screws of the CNXCPU to be replaced
and pull outward to remove the card.
3. Align the CNXCPU to be installed with the card guides of the double-
sized CPU slot and slide the card into position.
4. Firmly press both ends of the CNXCPU faceplate to seat the card into
the control system connector.
5. Tighten the thumb screws finger-tight to secure the CNXCPU to the
control system.
6. Reapply power to the control system.
Hookup
Refer to the example hookup diagram below and aside from applying power last,
complete the connections in any order.
Hookup Connections for CNXCPU
TO SERIAL
PORT ON PC
(PARALLEL DB9
CONNECTOR ALSO
ON CONTROL
SYSTEM FRONT
PANEL)
PWR
NET
COMPUTER
CNXCPU
CONTROL
PROCESSOR
24
Y
C
Z
R
G
E
S
N
E
T
OPTIONAL ETHERNET
EXPANSION CARD
TO ETHERNET OR
LOCAL AREA
NETWORK
LAN
DPA
CRESTRON
TO OR FROM
ANY STS
OR CRESNET
NETWORK DEVICE
24VDC FROM
CNPWS-75 (OR
OTHER NETWORK
DEVICE)
Operations & Installation Guide - DOC. 8135 CNX Control Processor Card: CNXCPU •• 5
CNX Control Processor Card Crestron CNXCPU
CAUSE(S)
indicator does
connection.
CNXCPU is(are) secure.
slot as defined by program). Poll the network
Pro (VT Pro).
Programming with SIMPLTM Windows
The CNXCPU is the central processor unit of the Modular Control System and its
programming depends on the functionality of the control system and the expansion
cards installed.
Problem Solving
Troubleshooting
The table below provides corrective action for possible trouble situations. If further
assistance is required, please contact a Crestron technical support representative.
CNXCPU Troubleshooting
TROUBLE
Green PWR
indicator does
not illuminate.
Yellow NET
POSSIBLE
CNXCPU is not
receiving power.
Loose network
CORRECTIVE ACTION
Verify power to the CNXCPU from the
CNPWS-75 (or CNPWSI-75 for international
use) external power supply.
Verify that Cresnet cable(s) plugged into
not illuminate. SIMPL Windows
program error.
Hardware or software
failure, hardware
incompatibility with
software definitions, or
programming error.
Verify the SIMPL Windows program.
Verify that hardware configuration matches
software configuration (i.e., card is in proper
(F4) via SIMPL Windows or VisionTools
TM
Further Inquiries
If after reviewing this Operations & Installation Guide for the CNXCPU, you cannot
locate specific information or have questions, please take advantage of Crestron's
award winning technical support team by calling:
• In the US and Canada, call Crestron’s corporate headquarters at
1-888-CRESTRON [1-888-273-7876] or 1-201-767-3400.
• In Europe, call Crestron International at +32-15-50-99-50.
• In Asia, call Crestron Asia at +852-2341-2016.
• In Latin America, call Crestron Latin America at +525-574-15-90.
For local support from exclusive Crestron factory-trained personnel call:
• In Australia, call Soundcorp at +613-941-61066.
• In New Zealand, call Amber Technologies at +649-410-8382.
6 •• CNX Control Processor Card: CNXCPU Operations & Installation Guide - DOC. 8135
Crestron CNXCPU CNX Control Processor Card
Return and Warranty Policies
Merchandise Returns / Repair Service
1. No merchandise may be returned for credit, exchange, or service
without prior authorization from CRESTRON. To obtain warranty
service for CRESTRON products, contact the factory and request an
RMA (Return Merchandise Authorization) number. Enclose a note
specifying the nature of the problem, name and phone number of
contact person, RMA number, and return address.
2. Products may be returned for credit, exchange, or service with a
CRESTRON Return Merchandise Authorization (RMA) number.
Authorized returns must be shipped freight prepaid to CRESTRON,
Cresskill, N.J., or its authorized subsidiaries, with RMA number clearly
marked on the outside of all cartons. Shipments arriving freight collect
or without an RMA number shall be subject to refusal. CRESTRON
reserves the right in its sole and absolute discretion to charge a 15%
restocking fee, plus shipping costs, on any products returned with an
RMA.
3. Return freight charges following repair of items under warranty shall
be paid by CRESTRON, shipping by standard ground carrier. In the
event repairs are found to be non-warranty, return freight costs shall be
paid by the purchaser.
CRESTRON Limited Warranty
CRESTRON ELECTRONICS, Inc. warrants its Cresnet products, denoted by a
"CN" prefix model number, to be free from manufacturing defects in materials and
workmanship for a period of three (3) years from the date of shipment to purchaser.
Disk drives and any other moving or rotating mechanical parts are covered for a
period of one (1) year. CRESTRON warrants all its other products for a period of
one year from the defects mentioned above, excluding touchscreen display
components which are covered for 90 days. Incandescent lamps are completely
excluded from Crestron's Limited Warranty. CRESTRON shall, at its option, repair
or replace any product found defective without charge for parts or labor. Repaired or
replaced equipment and parts supplied under this warranty shall be covered only by
the unexpired portion of the warranty.
CRESTRON shall not be liable to honor warranty terms if the product has been used
in any application other than that for which it was intended, or if it has been
subjected to misuse, accidental damage, modification, or improper installation
procedures. Furthermore, this warranty does not cover any product that has had the
serial number altered, defaced, or removed.
This warranty shall be the sole and exclusive remedy to the purchaser. In no event
shall CRESTRON be liable for incidental or consequential damages of any kind
(property or economic damages inclusive) arising from the sale or use of this
equipment. CRESTRON makes no other warranties nor authorizes any other party to
offer any warranty, expressed or implied, including warranties of merchantability for
this product. This warranty statement supersedes all previous warranties.
Trademark Information
All brand names, product names, and trademarks are the sole property of their respective owners.
Windows is a registered trademark of Microsoft Corporation. Windows95, Windows98 and WindowsNT
are trademarks of Microsoft Corporation.
Operations & Installation Guide - DOC. 8135 CNX Control Processor Card: CNXCPU •• 7
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