Crestron CNXHUB Cresnet Hub/Repeater
Contents
Cresnet Hub/Repeater: CNXHUB 1
Description .................................................................................................................................................1
Functional Description.............................................................................................................1
Physical Description.................................................................................................................1
Leading Specifications.............................................................................................................................2
Preparation for Use...................................................................................................................................3
Problem Solving........................................................................................................................................3
Troubleshooting ........................................................................................................................3
Further Inquiries........................................................................................................................4
Return and Warranty Policies.................................................................................................................5
Merchandise Returns / Repair Service..................................................................................5
CRESTRON Limited Warranty.............................................................................................5
Operations Guide - DOC. 8146 Contents •• i
Crestron CNXHUB Cresnet Hub/Repeater
Cresnet Hub/Repeater: CNXHUB
Description
Functional Description
The Cresnet Hub/Repeater, CNXHUB, is a Cresnet compatible hub that can serve as
a repeater, splitter, and wiring block. There are six independent RS-485 ports. Each
port (or segment) has a dedicated driver/receiver. There are no master or slave ports
and each port is interchangeable with the others.
The power (pin labeled 24) and ground (G) signals are common to all six connectors.
Therefore, they can be used for power distribution. The CNXHUB draws power
from any of the six connectors. DO NOT connect multiple power supplies to the
CNXHUB.
Segments that are not in use or have devices that are not polled by a SIMPL
program, are logically ‘disconnected’ from the other segments in operation. The
LED for these segments going out indicates this condition.
Physical Description
The CNXHUB is housed in a black enclosure with silk-screened labels on the front
and rear panels. On the front of the unit there are seven LEDs for indicating the
unit’s current status. All connections are made on the back of the unit. Refer to the
physical views shown on the next page. There are four rubber feet on the base of the
unit for stability and to prevent slippage when the unit is stored on a surface or
stacked. Up to two units can be rack mounted with an optional 19.00 inch (48.26 cm)
rack mount kit (sold separately).
CNXHUB Ports
All six ports (labeled A–F) are on the rear panel of the CNXHUB. Attach wiring per
latest revision of either the Network Interconnection Drawing (Doc. 5411) or the
Mini Network Interconnection Drawing (Doc. 5819). The Crestron or CAT 5 cables
can be secured to the six supplied mini-phoenix connectors which can be plugged
into the CNXHUB ports.
Operations Guide - DOC. 8146 Cresnet Hub/Repeater: CNXHUB •• 1
Cresnet Hub/Repeater Crestron CNXHUB
Width: 7.07 in (17.95 cm)
CNXHUB Indicators
Seven LED indicators are located on the front panel of the CNXHUB. The PWR
(Power) LED illuminates when power is supplied to the CNXHUB. The six NET
ACTIVITY (A–F) LEDs illuminate when the device on a respective segment
transmits data.
CNXHUB Physical Views
Leading Specifications
2 •• Cresnet Hub/Repeater: CNXHUB Operations Guide - DOC. 8146
The table below provides a summary of leading specifications for the CNXHUB.
Dimensions and weight are rounded to the nearest hundredth unit.
Leading Specifications of the CNXHUB
SPECIFICATION DETAILS
Power Requirements 24 VDC, Load Factor of 2 Watts
Dimensions & Weight Height: 1.70 in (4.32 cm)
Depth: 6.32 in (16.06 cm)
Weight: 1.91 lb (0.86 kg)
As of the date of manufacture, the unit has been tested and found to comply with
specifications for CE marking.
Crestron CNXHUB Cresnet Hub/Repeater
CAUSE(S)
properly identified in
working and
NOTE: This device complies with part 15 of the FCC rules. Operation is subject to
the following two conditions: (1) these devices may not cause harmful interference,
and (2) these devices must accept any interference received, including interference
that may cause undesired operation.
Preparation for Use
Any Cresnet compatible device can be connected to the CNXHUB when there is a
need for a repeater, splitter, and wiring block. Other than making the power
connection last, complete the connections in any order. The CNXHUB connectors
support various cable types. A single Crestron cable can be used or up to two CAT 5
cables can be accommodated by the connector. If you are using Crestron cable, refer
to the latest revision of the Network Interconnection Drawing (Doc. 5411). When
making category 5 wire connections, refer to the latest revision of the Cresnet Mini
Network Cat 5 Interconnect Data Sheet (Doc. 5819).
Problem Solving
Troubleshooting
The table following this paragraph provides corrective action for possible trouble
situations. If further assistance is required, please contact a Crestron technical
support representative.
CNXHUB Troubleshooting
TROUBLE
PWR LED
does not
illuminate.
Segment
LED does
not
illuminate.
Network not
only one
LED is
illuminated.
POSSIBLE
CNXHUB is not
receiving power.
Segment is
improperly wired.
Device attached to
segment is not
SIMPL Windows.
Other segment is
improperly wired.
Wiring problem. Disconnect segment that resulted in illuminated
Confirm that the CNXHUB is securely attached to
a Cresnet compatible power supply.
Verify wiring connections: proper connector is
used, cable in intact, and connections are secure.
Use Viewport (F4) to verify that SIMPL Windows
program recognizes device.
Remove all segment connections except for
segment attached to control system and segment
for which the LED is not illuminating.
LED and correct wiring.
CORRECTIVE ACTION
Operations Guide - DOC. 8146 Cresnet Hub/Repeater: CNXHUB •• 3
Cresnet Hub/Repeater Crestron CNXHUB
Further Inquiries
If after reviewing this Operations Guide for the CNXHUB, 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 +32.15.730.974.
• 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.
4 •• Cresnet Hub/Repeater: CNXHUB Operations Guide - DOC. 8146
Crestron CNXHUB Cresnet Hub/Repeater
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 Guide - DOC. 8146 Cresnet Hub/Repeater: CNXHUB •• 5
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