CRESTRON GREEN LIGHT EXPRESS dimming panels come pre-configured with GLXX-2DIM8 dimming
modules already installed. The cabinets only require installation and wiring of feed and load circuits.
Application
The following diagram shows CRESTRON GREEN LIGHT EXPRESS dimming panels in a lighting application
that is controlled by an IPAC system.
CRESTRON GREEN LIGHT EXPRESS Dimming Panels in a Typical Lighting Application
GREEN LIGHT® EXPRESS Dimming Panel
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Crestron Electronics, Inc. Installation Guide – DOC. 6889A
15 Volvo Drive Rockleigh, NJ 07647 (2025420)
Tel: 888.CRESTRON 05.10
Fax: 201.767.7576 Specifications subject to
www.crestron.com change without notice.
Page 2
Dimming Panel CRESTRON GREEN LIGHT® EXPRESS
Regulatory Compliance
This product is Listed to applicable UL Standards and requirements by Underwriters Laboratories Inc.
As of the date of manufacture, the Green Light Express Dimming Panel has been tested and found to comply
with specifications for CE marking and standards per EMC and Radiocommunications Compliance Labelling.
Federal Communications Commission (FCC) Compliance Statement
This device complies with part 15 of the FCC Rules. Operation is subject to the following conditions:
(1) This device may not cause harmful interference and (2) this device must accept any interference received,
including interference tha t ma y cause undesired operation.
CAUTION: Changes or modifications not expressly approved by the manufacturer responsible for compliance
could void the user’s authority to operate the equipment.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment genera tes, uses and can radiate radio frequency energy
and, if not installed and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a particul ar installation. If
this equipment does cause harmful interference to radio or television reception, which can be dete rmined by
turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the
following measures:
Reorient or relocate the receiving antenna
Increase the separation between the equipment and receiver
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected
Consult the dealer or an experienced radio/TV technician for help
Industry Canada (IC) Compliance Statement
This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.
• The panel must be mounted by a licensed electrician in accordance with all national and local codes. Refer
to the diagram below for specific requirements.
• The panel is designed for surface mounting on a wall.
• Panels are intended for indoor use only.
• The ambient temperature range should be 32°F to 104°F (0°C to 40°C). The relative humidity should range
from 10% to 90% (non-condensing). Allow adequate clearance in front of the cover for servicing.
NOTE: All wiring must be installed in accordance with all local and national electrical codes.
NOTE: Refer to the torque settings specified on pages 11 and 12.
CRESTRON GREEN LIGHT EXPRESS dimming panels are shipped with GLXX-2DIM8 dimming modules
installed. The following must be performed after mounting the panel:
• Connect incoming feed conductors to the input terminals and connect loads to output terminals (section A
of the following diagram)
• Connect control wiring (section B of the following diagram)
The bottom of the cabinet contains Cresnet® connections for interfacing to the rest of the Crestron® control system.
It also provides overrides input which can be tied to devices such as the GLS-PLS-120/277 phase-loss sensor, or
other devices that provide a dry contact closure (manual switch, fire alarm relay, etc.).
To ensure optimum performance over the full range of your installation topology, use Crestron certified wire.
Failure to do so may incur additional charges if support is required to identify performance deficiencies because of
using improper wire.
NOTE: Interface connectors for NET (x4), and OVERRIDE (x3) ports are provided.
Wire Gauge and Torque Values
TERMINAL CONNECTOR MAX
WIRE RANGE
NET 26-12 AWG
OVERRIDE 26-12 AWG
Connector Wiring
TORQUE STRIP
LENGTH
4.43 lb-in
(0.5 Nm)
4.43 lb-in
(0.5 Nm)
MODULES:
TO GLXX-2DIM8
MODULES (PREWIRED)
1/4”
(6 mm)
1/4”
(6 mm)
OVERRIDE:
OTHER CABINET,
FROM ALARM, ETC.
(OPTIONAL); TO OTHER
RED
WHITE
TO CONTROL SYSTEM AND
OTHER CRESNET DEVICES
BLUE
BLACK
NET:
RED
BLUE
WHITE
BLACK
FROM GLS-PLS-120/277, FROM
CABINET(S) IF NECESSARY
NOTE: For instructions on network wiring, refer to “Appendix C: Network Wiring” on page 21.
When wiring the supplied NET connectors for connection to a Crestron control system or other device on the
Cresnet network, use Crestron certified wire such as CRESNET-NP or CRESNET-P. For instructions on
network wiring, refer to “Appendix C: Network Wiring” on page 21.
When daisy-chaining connections between NET ports, strip the ends of the wires carefully to avoid nicking the
conductors. Twist together the ends of the wires that share a pin on the network connector, insert the connection
into the Cresnet connector, tighten the retaining screw. Repeat the procedure for the other three conductors.
OVERRIDE Port Wiring
When a connection is applied between the override terminals, the modules will enter Override mode. The
Crestron GLS-PLS-120/277 phase-loss sensor or any device that provides a dry contact closure can be
connected to the supplied OVERRIDE connector on the bottom of the cabinet.
Lighting loads can be manually controlled from the front panel. To dim or turn a load on or off, press the channel
button corresponding to the desired load. When a load is switched on, the status LED of the channel will illuminate
and the display on the GLXX-2DIM8 will indicate the current lighting level of the load.
GLXX-2DIM8 Channel Control (Channel 1 is shown)
STATUS LED (RED)
CHANNEL NUMBER
CHANNEL BUTTON
Manual Load Configuration
By default, all channels are set for dimmer operation. The 3-way slide switches provided on the GLXX-2DIM8
allows the user to manually configure each channel for either dimmer, 3-wire fluorescent or non-dimmer operation.
3-way Slide Switch
SLIDE SWITCH
{
When a channel pair is set to 3-wire fluorescent, the channel button corresponding to the first channel in the pair will
control dimming functionality. The button corresponding to the second channel in the pair will be disabled. The
status LED’s for both channels will operate in tandem.
Connect wiring for 3-wire fluorescent operation as shown below. The first channel in the pair will act as the
dimming control (1-100%). The second channel in the pair will provide full switched power according to the state of
the first channel. Set both channel dip switches in the pair to 3 WIRE FL.
The Override mode overrides the control system program and sets all of the output states to the stored override
values. For instructions on saving override settings, refer to “Save Override Settings” below.
To enable Override mode, press and release the OVR button. The OVR LED flashes slowly.
NOTE: If the Override mode was enabled from an external device (i.e. a contact closure is present on the
OVERRIDE terminals), the OVR LED will flash quickly. Pressing the OVR button has no effect.
To disable Override mode, press the OVR button again. The OVR LED extinguishes and the outputs return to the
states set by the control system program.
NOTE: If override states have not been stored, the factory default override state is all loads on.
Save Override Settings
The state of each output can be saved as an override setting, which can be automatically recalled when the Override
mode is enabled.
NOTE: The control system program has a setting that can prevent locally saving the override state. If this setting is
enabled, the display shows “Er” when trying to save override states. For more information, refer to the SIMPL
Windows help file.
To save the states of all outputs as the override setting, press and hold the OVR button for three seconds until the
OVR LED blinks once.
System Operation and Commissioning
This cabinet has been designed as a component of a programmed Crestron system. System commissioning by an
authorized Crestron representative
Once the cabinet has been wired and the modules have been tested, contact Crestron at 1-888-CRESTRON
[1-888-273-7876] to schedule commissioning.
The following table provides corrective action for possible trouble situations. If further assistance is required, please
contact a Crestron customer service representative.
Troubleshooting
TROUBLE POSSIBLE CAUSE(S) CORRECTIVE ACTION
Module(s) does not
function.
Unit cannot be taken out
of Override mode
Device is not receiving
power from a Crestron
power source.
Device is not receiving
sufficient power via
Cresnet link.
System commissioning
not complete.
Short (contact closure)
exists between G and OVR
terminals on any of the
OVERRIDE terminals
present at bottom of the
cabinet.
Use the provided Crestron power source.
Verify connections.
Use the Crestron Power Calculator to help
calculate how much power is needed for
the system.
Arrange for system commissioning.
Determine the reason for the short.
Remove or remedy the short
(e.g. GLS-PLS-120/277 phase-loss sensor
may not have been installed properly, or
actual phase-loss has been detected).
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 Crestron at 1-888-CRESTRON [1-888-273-7876].
You can also log onto the online help section of the Crestron website (
questions about Crestron products. First-time users will need to establish a user account to fully benefit from all
available features.
The following procedure will normally be performed by an authorized Crestron rep resentative as part of the System
Commissioning phase. For system wiring and basic testing as described on pages 10 and 14, it is not necessary to
perform this step. Only perform this step if instructed by an authorized Crestron representative, or when replacing
modules on a system that have already been commissioned (in the latter case the Net ID should be set to match the
Net ID of the module being replaced).
The Net ID of each module in the cabinet can be changed from the front panel of each module. The Net IDs of each
module in the system must be unique.
To set the Net ID using the front panel:
1. Press the recessed SETUP button to enter the Setup mode. The SETUP LED illuminates.
2. As shown in the following diagram, press the left button under the NET ID display to change the left digit
of the Net ID or press the right button under the NET ID display to change the right digit of the Net ID
number.
Changing the Net ID
LABEL FOR
NET ID
RIGHT DIGITLEFT DIGIT
CHANGES
LEFT DIGIT
CHANGES
RIGHT DIGIT
SETUP
BUTTON & LED
3. When the desired Net ID is displayed, press the SETUP button to exit the Setup mode. The SETUP LED
extinguishes.
If the SETUP button is not pressed, the Setup mode will time out after one minute activity and the Net ID
will revert back to its original value.
In order to ensure optimum performance over the full range of your installation topology, Crestron Certified Wire
and only Crestron Certified Wire may be used. Failure to do so may incur additional charges if support is required to
identify performance deficiencies because of using improper wire.
Calculate Power
CAUTION: Use only Crestron power supplies for Crestron equipment. Failure to do so could cause equipment
damage or void the Crestron warranty.
CAUTION: Provide sufficient power to the system. Insufficient power can lead to unpredictable results or damage
to the equipment. Please use the Crestron Power Calculator to help calculate how much power is needed for the
system (
When calculating the length of wire for a particular Cresnet run, the wire gauge and the Cresnet power usage of each
network unit to be connected must be taken into consideration. Use Crestron Certified Wire only. If Cresnet units
are to be daisy-chained on the run, the Cresnet power usage of each network unit to be daisy-chained must be added
together to determine the Cresnet power usage of the entire chain. If the unit is home-run from a Crestron system
power supply network port, the Cresnet power usage of that unit is the Cresnet power usage of the entire run. The
wire gauge and the Cresnet power usage of the run should be used in the following equation to calculate the cable
length value on the equation’s left side.
Cable Length Equation
www.crestron.com/calculators).
40,000
L <
R x P
Make sure the cable length value is less than the value calculated on the right side of the equation. For example, a
Cresnet run using 18 AWG Crestron Certified Wire and drawing 20 watts should not have a length of run more than
333 feet (101 meters). If Cresnet HP is used for the same run, its length could extend to 1250 feet (381 meters).
NOTE: All Crestron certified Cresnet wiring must consist of two twisted pairs. One twisted pair is the +24V
conductor and the GND conductor and the other twisted pair is the Y conductor and the Z conductor.
Where:
L = Length of run (or chain) in feet
R = 6 Ohms (Crestron Certified Wire: 18 AWG (0.75 MM ))
or 1.6 Ohms (Cresnet HP: 12 AWG (4 M M ))
P = Cresnet power usage of entire run (or chain)
2
2
Strip and Tin Wire
When daisy-chaining Cresnet units, strip the ends of the wires carefully to avoid nicking the conductors. Twist
together the ends of the wires that share a pin on the network connector and tin the twisted connection. Apply solder
only to the ends of the twisted wires. Avoid tinning too far u p the wires or the end becomes brittle. Insert the tinned
connection into the Cresnet connector and tighten the retaining screw. Repeat the procedure for the other three
conductors.
Add Hubs
Use of a Cresnet Hub/Repeater (CNXHUB) is advised whenever the number of Cresnet devices on a network
exceeds 20 or when the combined total length of Cresnet cable exceeds 3000 feet (914 meters).
1. No merchandise may be returned for credit, exchange or service without prior authorization from
CRESTRON. To obtain warranty service for CRESTRON products, contact an authorized
CRESTRON dealer. Only authorized CRESTRON dealers may 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 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. Windows95/98/Me/XP/Vista/7 and WindowsNT/2000 are trademarks of Microsoft Corporation.