Crestron CNX-ASBK User Manual

Crestron CNX-ASBK
Audio Switcher Bussing Kit
Operations & Installation Guide

Crestron CNX-ASBK Audio Switcher Bussing Kit

Contents

Audio Switcher Bussing Kit: CNX-ASBK 1

Description 1

Functional Description 1

Physical Description 1
Identity Codes of the CNX-PAD8s 2
Installing CNX-ASBKs into CNX-PAD8s 3
Industry Compliance 7
Programming Daisy-Chained CNX-PAD8s 7
Problem Solving 8

Troubleshooting 8

Further Inquiries 8

Future Updates 8
Return and Warranty Policies 9

Merchandise Returns / Repair Service 9

CRESTRON Limited Warranty 9

Operations & Installation Guide - DOC. 8143 Contents • i

Crestron CNX-ASBK Audio Switcher Bussing Kit

Audio Switcher Bussing Kit:
CNX-ASBK

Description

Functional Description

The Audio Switcher Bussing Kit, CNX-ASBK, is used to daisy-chain CNX-PAD8s

to expand the number of room outputs. Each CNX-PAD8 controls up to eight audio

sources and distributes the audio to up to eight room amplifiers (not supplied). A

maximum of four CNX-PAD8s may be daisy-chained together to provide up to 32

room outputs. The CNX-ASBK provides for the additional outputs by bussing up to

eight inputs while preventing extreme impedance loading. One kit is needed for each

CNX-PAD8 that is to be daisy-chained.

Physical Description

Each CNX-ASBK consists of one Point Cross Loop Printed Circuit Board (PCB)

Assembly, eight 4-conductor Cross Point PCB to Processor PCB Cable Assemblies,

and four 12-conductor Bussing Cable Assemblies. Refer to the physical views shown

after this paragraph.

PCB Assembly (Front and Rear View)

8.59"

1.48"

4-PIN CONNECTORS

(FRONT VIEW)

12-PIN CONNECTORS

PCB MOUNTED STAND-OFFS

Operations & Installation Guide - DOC. 8143 Audio Switcher Bussing Kit: CNX-ASBK • 1

(REAR VIEW)

Audio Switcher Bussing Kit Crestron CNX-ASBK

PCB to PCB Cable (2-inch, 4-conductor)

(SIDE VIEW)

(BOTTOM VIEW)

Bussing Cable (6-inch, 12-conductor)

KEY

(BOTTOM VIEW)

Identity Codes of the CNX-PAD8s

Every equipment and user interface within the network requires a unique identity

code (Net ID). These codes are recognized by a two-digit hexadecimal number from

03 to FE. The Net ID of the unit must match an ID code specified in the SIMPL

Windows program. The Net ID of CNX-PAD8s is factory set to 44. The Net IDs of

each of the daisy-chained CNX-PAD8s must be unique and changed from a PC via

VisionToolsTM Pro-e (VT Pro-e) or SIMPL Windows.

The method for changing the unit’s Net ID is identical regardless of the software

chosen. Verify that the control system software is running and complete the

following steps to change the Net ID:

(SIDE VIEW)

KEY

1. Disconnect all network devices from the control system.

2. Attach one of the CNX-PAD8s that needs to have its Net ID changed to
the control system.

3. Select Tools | Viewport to open “Crestron Viewport” dialog box.

4. Select Functions | Set Network ID. The software checks the baud rate
and then opens the “Set Network ID” dialog box.

5. The list of current network devices is normally shown in the dialog
box. Highlight the CNX-PAD8.

6. The Net ID of the CNX-PAD8 (default is 44) appears in the box below
the list. Use the scroll arrow to assign another Net ID.

7. When the newly assigned Net ID appears, select the Set ID button to
initiate the change.

8. The software responds with a successful message to confirm the new
Net ID.

9. To verify this procedure, select Diagnostics | Report Network
Devices. Confirm that the CNX-PAD8 has a new Net ID code.

10. Repeat steps 2 - 10 of this procedure for each CNX-PAD8 that needs its
Net ID changed.

11. Reconnect other network devices that were disconnected in step 1.

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Crestron CNX-ASBK Audio Switcher Bussing Kit

Installing CNX-ASBKs into CNX-PAD8s

One CNX-ASBK is required for each CNX-PAD8 that is to be daisy-chained. The
only tools required are a Phillips tip screwdriver and a grounding strap. Follow the
assembly procedure and illustrations that begin after this paragraph.

CAUTION: The CNX-PAD8s must be opened to install the CNX-ASBK. Observe
precautions for handling electrostatic sensitive devices (ESDs).

NOTE: To daisy-chain CNX-PAD8s, all of the units must be stacked directly above
the other.

NOTE: This procedure assumes that one CNX-PAD8 is already rack mounted in a
network system. If this is a totally new installation, start on step 7 of this procedure.

1. If the back panel of the CNX-PAD8 is accessible, remove the rack
mounting screws. If the back panel is NOT accessible, remove the
screws and pull CNX-PAD8 partially out of the rack to gain access.

2. At the rear of the CNX-PAD8, disconnect the electrical power (4-pin
Cresnet



3. Note (or label) the position of each 6-pin RJ-11 network device cable
and disconnect.

4. Note (or label) the position of audio output, audio input loop-through,
and audio input RCA cables and disconnect each cable.

5. Remove the ground wire from the CNX-PAD8 ground screw.

Rear View of CNX-PAD8

GROUND

SCREW

1 - 2

SOURCES

LEFT

RIGHT

CRESTRON

AUDIO
INPUT

2

1

ELECTRONICS INC. ROCKLEIGH, N.J. 07647

AUDIO INPUT

LOOP-THROUGH

power connector and/or the external power pack).

EXTERNAL

CRESNET

3 - 4

CRESNET

POWER

5 - 6

43

7 - 8

65

87

RIGHT

G

ROOMS

LEFT

AUDIO

OUTPUT

NETWORK

DEVICES

24

Y Z G

321 7654

POWER

PAC K

24VDC

1A

8

6. Remove the mounting ears from each side of the CNX-PAD8.

Remove the Mounting Ears

REMOVE THESE

(3) SCREWS

FROM EACH SIDE

Operations & Installation Guide - DOC. 8143 Audio Switcher Bussing Kit: CNX-ASBK • 3

Audio Switcher Bussing Kit Crestron CNX-ASBK

NOTE: The remaining steps of this procedure describe the installation of one
CNX-ASBK into one CNX-PAD8. The steps apply to all of the CNX-PAD8s to be
daisy-chained and may be performed in an “assembly line” fashion on all of the
CNX-PAD8s at the same time.

7. Place the CNX-PAD8 right-side-up on a flat surface.

8. Remove the cover screws from the top and sides of the CNX-PAD8.

Remove the Cover Screws

REMOVE THREE

IF NOT RACK

MOUNTED, REMOVE

THESE (3) SIDE
SCREWS ALSO

(3) SIDE SCREWS

REMOVE FOUR

(4) TOP SCREWS

REMOVE THREE

(3) SIDE SCREWS

9. Lift and remove the CNX-PAD8 top cover.

10. From the rear of the CNX-PAD8, remove the 10 back panel cover plate
mounting screws and remove the cover plate.

Back Panel Cover Plate Mounting Screws

10 COVER PLATE

MOUNTING SCREWS

1 - 2

SOURCES

1

LEFT

RIGHT

ELECTRONICS INC. ROCKLEIGH, N.J. 07647

CRESTRON

3 - 4

2

5 - 6

43

65

11. Making sure that the rear of the PCB assembly faces the rear of the
CNX-PAD8, insert the PCB into the position that was occupied by the
back panel cover plate as shown after this step. Install the PCB with the
10 cover plate screws that were removed.

7 - 8

IF NOT RACK

MOUNTED, REMOVE

THESE (3) SIDE
SCREWS ALSO

CRESNET

G

ROOMS

87

LEFT

RIGHT

321 7654

24

Y Z G

24VDC

1A

8

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Crestron CNX-ASBK Audio Switcher Bussing Kit

Install the PCB Assembly

10 COVER

PLATE SCREWS

NOTE: DO NOT twist the cables during installation. The cables are custom
designed and will fit perfectly. If the cable does not fit correctly, switch the cable
ends from the PCB to the CNX-PAD8 processor PCB. DO NOT force the connector
onto pins.

12. Hold one end of the PCB to PCB cable (2-inch, 4-pin) toward the front
of the CNX-PAD8. Carefully align and insert the other connector onto
the connector on CNX-PAD8 processor PCB.

13. Curl the cable directly above and insert the other connector onto the
pins of the PCB as shown.

Install the PCB to PCB Cables

Operations & Installation Guide - DOC. 8143 Audio Switcher Bussing Kit: CNX-ASBK • 5

Audio Switcher Bussing Kit Crestron CNX-ASBK

14. Repeat the previous two steps for all of the remaining PCB to PCB
cables.

15. Install the rack mounting ears and then the remaining cover screws to
11-inch/pounds.

Install the CNX-PAD8 Cover

IF NOT RACK

MOUNTED, INSTALL

THESE (3) SIDE
SCREWS ALSO

INSTALL THREE

(3) SIDE SCREWS

INSTALL FOUR

(4) TOP SCREWS

MOUNTED, INSTALL

THESE (3) SIDE
SCREWS ALSO

INSTALL THREE

(3) SIDE SCREWS

IF NOT RACK

16. If this procedure has been performed on only one CNX-PAD8, repeat
this procedure from step 7 for all of the CNX-PAD8s to be daisy­chained.

17. If the back panels of the CNX-PAD8s will be accessible when mounted
in the rack, install the CNX-PAD8s. If the back panels will NOT be
accessible, hookup all cables before installing into rack.

NOTE: DO NOT twist the cables during installation. The cables are custom
designed and will fit perfectly. If the cable does not fit correctly, switch the cable
ends from one CNX-PAD8 to another. DO NOT force the connector onto pins.

18. Note the position of the connector keys and install the bussing cables
(6-inch, 12-conductor) from CNX-PAD8 to CNX-PAD8. Shown below
are the bussing cables for audio sources 1 – 2. Connect the cables as
required per custom installation.

Install the Bussing Cables

12-PIN, 6-INCH CABLE TO CNX-PAD8
ABOVE, IF APPLICABLE

CRESNET

1 - 2

SOURCES

1

LEFT

RIGHT

ELEC S INC. ROCKLEIGH, N.J. 07647

CRESTRON

3 - 4

2

5 - 6

43

65

7 - 8

G

ROOMS

87

LEFT

RIGHT

321 7654

24

Y Z G

24VDC

1A

8

12-PIN, 6-INCH CABLE TO CNX-PAD8
BELOW, IF APPLICABLE

NOTE POSITION
OF CONNECTOR KEY

6 • Audio Switcher Bussing Kit: CNX-ASBK Operations & Installation Guide - DOC. 8143

Crestron CNX-ASBK Audio Switcher Bussing Kit

19. Daisy-chain the ground wire to each CNX-PAD8.

NOTE: Additional audio patch cords are not required. The bussing cables provide
parallel audio inputs to all of the CNX-PAD8s.

20. Connect the audio RCA cables to the audio inputs and/or audio input
loop-through into their original positions of the original or “primary”
CNX-PAD8.

21. If the configuration of the original CNX-PAD room outputs is to be
kept, reconnect the audio output cables to their original positions.
Connect the audio outputs of the each CNX-PAD8 to their designated
room amplifiers.

22. Connect each 6-pin RJ-11 network device cable to its original position.

23. Using network device cables (not supplied), daisy-chain each
CNX-PAD8 to each other or the control system.

24. At the rear of the CNX-PAD8s, connect the electrical power (4-pin
Cresnet power connectors and/or the external power packs).

Industry Compliance

As of the date of manufacture, this unit has been tested and found to comply with
specifications for CE marking and standards per EMC and Radiocommunications
Compliance Labelling.

Programming Daisy-Chained CNX-PAD8s

The CNX-PAD8s can be programmed to fit any customized installation. Daisy­chained CNX-PAD8s are programmed individually by using their unique Net IDs.
Refer to the CNX-PAD8 Operations Guide (latest revision of Doc. 8137) for further
information.

Operations & Installation Guide - DOC. 8143 Audio Switcher Bussing Kit: CNX-ASBK • 7

Audio Switcher Bussing Kit Crestron CNX-ASBK

Problem Solving

Troubleshooting

The table below provides corrective action for possible trouble situations of the
daisy-chained CNX-PAD8s. If further assistance is required, refer to the CNX-PAD8
Operations Guide or please contact a Crestron customer service representative.

Daisy-Chained CNX-PAD8 Troubleshooting

TROUBLE

No audio at all CNX­PAD8s.

One or more (but not
all) CNX-PAD8s not
distributing audio.

Yellow NET LED on
the front panel of a
daisy-chained CNX­PAD8 does not
illuminate.

POSSIBLE

CAUSE(S)

Audio source cables
not connected.

Bussing cable(s) or
pin(s) damaged or not
connected properly.
PCB to PCB cable(s) or
pin(s) damaged or not
connected properly.
Improper NET ID. Verify that CNX-PAD8 NET ID

CORRECTIVE ACTION

Verify that audio source cables
plugged into original or "primary" CNX­PAD8 are secure.
Check pins and temporarily swap
bussing cable(s). Replace cable(s) if
damaged.
Check pins and temporarily swap PCB
to PCB cable(s). Replace cable(s) if
damaged.

matches NET ID software program.
Refer to "Identity Codes of the CNX­PAD8s".

Further Inquiries

If you cannot locate specific information or have questions after reviewing this
guide, please take advantage of Crestron's award winning customer service team by
calling the Crestron corporate headquarters at 1-888-CRESTRON [1-888-273-7876].
For assistance in your local time zone, refer to the Crestron website
(www.crestron.com

) for a listing of Crestron worldwide offices.

You can also log onto the online section of the Crestron website (www.crestron.com
to ask questions about Crestron products. First-time users will need to establish a
user account to fully benefit from all available features.

Future Updates

As Crestron adds improvements to the CNX-ASBK, 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 (www.crestron.com
availability and its relevance. Updates are available from the Download | Product
Manuals section and are identified as an “Addendum” in the Download column.

8 • Audio Switcher Bussing Kit: CNX-ASBK Operations & Installation Guide - DOC. 8143

) periodically for manual update

)

Crestron CNX-ASBK Audio Switcher Bussing Kit

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, 6 Volvo Drive, Rockleigh, 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 products to be free from manufacturing defects in
materials and workmanship under normal use for a period of three (3) years from the date of
purchase from CRESTRON, with the following exceptions: disk drives and any other moving or
rotating mechanical parts, pan/tilt heads and power supplies are covered for a period of one (1)
year; touchscreen display and overlay components are covered for 90 days; batteries and
incandescent lamps are not covered.

This warranty extends to products purchased directly from CRESTRON or an authorized
CRESTRON dealer. Purchasers should inquire of the dealer regarding the nature and extent of the
dealer's warranty, if any.

CRESTRON shall not be liable to honor the terms of this warranty 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 original 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 is not liable for
any claim made by a third party or made by the purchaser for a third party.

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.

Except as expressly set forth in this warranty, CRESTRON makes no other warranties, expressed
or implied, nor authorizes any other party to offer any warranty, including any implied warranties
of merchantability or fitness for a particular purpose. Any implied warranties that may be imposed
by law are limited to the terms of this limited warranty. This warranty statement supercedes 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. Windows95/98/Me/XP and WindowsNT/2000 are trademarks of Microsoft
Corporation.

Operations & Installation Guide - DOC. 8143 Audio Switcher Bussing Kit: CNX-ASBK • 9

Crestron Electronics, Inc. Operations & Installation Guide – DOC. 8143

15 Volvo Drive Rockleigh, NJ 07647 07.99
Tel: 888.CRESTRON
Fax: [phone] Specifications subject to
www.crestron.com change without notice.