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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.

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

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

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 +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.

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