Crestron CNXCPU How to use

Crestron CNXCPU CNX Control Processor Card
Operations & Installation Guide - DOC. 8135 Contents •• i
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

Crestron CNXCPU CNX Control Processor Card
Operations & Installation Guide - DOC. 8135 CNX Control Processor Card: CNXCPU •• 1
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.
24
Y
Z
G
C
R
E
S
N
E
T
CRESTRON
CNXCPU
CONTROL
PROCESSOR
PWR
NET
COMPUTER
LAN
DPA
5.00 in
(12.70 cm)
1.56 in
(3.96 cm)

CNX Control Processor Card Crestron CNXCPU
2•• CNX Control Processor Card: CNXCPU Operations & Installation Guide - DOC. 8135
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
COMPUTER
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.

Crestron CNXCPU CNX Control Processor Card
Operations & Installation Guide - DOC. 8135 CNX Control Processor Card: CNXCPU •• 3
DPA Slot
Side View of CNXCPU
DPA
CONNECTOR
ETHERNET
EXPANSION CARD
MOUNTING POINTS
OPENING
FOR DPA/LAN
PORT
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.

CNX Control Processor Card Crestron CNXCPU
4•• CNX Control Processor Card: CNXCPU Operations & Installation Guide - DOC. 8135
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
SPECIFICATION
DETAILS
Power Requirements 24VDC from the CNPWS-75 External
Power Supply (not provided), load factor
of 4 Watts. (With optional Ethernet
Expansion Card installed, load factor is 8
Watts.) *
Connector 26-pin DPA connector for optional
Ethernet Expansion Card.
Dimensions & Weight Height: 5.00 in (12.70 cm)
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.

Crestron CNXCPU CNX Control Processor Card
Operations & Installation Guide - DOC. 8135 CNX Control Processor Card: CNXCPU •• 5
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)
OPTIONAL ETHERNET
EXPANSION CARD
TO ETHERNET OR
LOCAL AREA
NETWORK
TO OR FROM
ANY STS
OR CRESNET
NETWORK DEVICE
24
Y
Z
G
C
R
E
S
N
E
T
CRESTRON
CNXCPU
CONTROL
PROCESSOR
PWR
NET
COMPUTER
LAN
DPA
24VDC FROM
CNPWS-75 (OR
OTHER NETWORK
DEVICE)

CNX Control Processor Card Crestron CNXCPU
6•• CNX Control Processor Card: CNXCPU Operations & Installation Guide - DOC. 8135
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 POSSIBLE
CAUSE(S)
CORRECTIVE ACTION
Green PWR
indicator does
not illuminate.
CNXCPU is not
receiving power. Verify power to the CNXCPU from the CNPWS-75 (or CNPWSI-75 for international
use) external power supply.
Yellow NET
indicator does
Loose network
connection.
Verify that Cresnet cable(s) plugged into
CNXCPU is(are) secure.
not illuminate. SIMPL Windows
program error. Verify the SIMPL Windows program.
Hardware or software
failure, hardware
incompatibility with
software definitions, or
programming error.
Verify that hardware configuration matches
software configuration (i.e., card is in proper
slot as defined by program). Poll the network
(F4) via SIMPL Windows or VisionToolsTM
Pro (VT Pro).
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 [phone].
•In Asia, call Crestron Asia at [phone].
•In Latin America, call Crestron Latin America at [phone].
For local support from exclusive Crestron factory-trained personnel call:
•In Australia, call Soundcorp at [phone].
•In New Zealand, call Amber Technologies at [phone].