48-Button Control Panel Interface Crestron CNPI-48
Specifications
Specifications for the CNPI-48 are listed in the following table.
CNPI-48 Specifications
SPECIFICATION DETAILS
Power Requirements Cresnet Power Usage
(CNPI-48I)
(CNPI-48L)
Default Net ID 11
Minimum 2-Series Control
System Update File
Environmental
Temperature 41º to 104ºF (5º to 40ºC)
Humidity 10% to 90% RH (non-condensing)
Enclosure
Dimensions
Height 5.80 in (14.73 cm)
Width 7.60 in (19.30 cm)
Depth 1.10 in (2.79 cm)
Weight 1.11 lbs (0.5 kg)
1. The latest software versions can be obtained from the Crestron website. Refer to the NOTE following
these footnotes.
2. Crestron 2-Series control systems include the AV2 and PRO2. Consult the latest Crestron Product
Catalog for a complete list of 2-Series control systems.
Surface mount “sandwich” PCB assembly with
black metal top panel
NOTE: Crestron software and any files on the website are for authorized Crestron
dealers and Crestron Authorized Independent Programmers (CAIP) only. New users
may be required to register to obtain access to certain areas of the site (including the
FTP site).
(2) 26-pin PC-mounted connectors;
(48) incandescent lamp drivers
referenced to +24V (CNPI-48I);
(48) LED drivers referenced to +5V
(CNPI-48L);
Connects to blunt-cut ribbon cables
(included);
Output Current (per output): 200 mA
maximum;
Output Current (per group): 1 Amp
maximum per each group of 8 outputs;
Output Current (total): 2 Amps maximum
1. Interface connectors for NET IN, and OUT ports are provided with the unit.
2. The CNPI-48L’s internal 5 Volt DC supply is limited to 800mA total output. An external power
Crestron CNPI-48 48-Button Control Panel Interface
Industry Compliance
As of the date of manufacture, the CNPI-48 has been tested and found to comply
with specifications for CE marking and standards per EMC and
Radiocommunications Compliance Labelling.
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.
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 generates, 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 particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined 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.
Operations Guide – DOC. 8016C 48-Button Control Panel Interface: CNPI-48
• 5
48-Button Control Panel Interface Crestron CNPI-48
Setup
Network Wiring
When wiring the network, consider the following:
• Use Crestron Certified Wire.
• Use Crestron power supplies for Crestron equipment.
• Provide sufficient power to the system.
CAUTION: Insufficient power can lead to unpredictabl e resul t s or dam a ge
to the equipment. Please use the Crestron Power Calculator to help calculate
how much power is needed for the system
http://www.crestron.com/calculators).
(
• For larger networks, use a Cresnet Hub/Repeater (CNXHUB) to maintain
signal quality.
For more details, refer to “
Check Network Wiring” on page 13.
Identity Code
The Net ID of the CNPI-48 has been factory set to 11. The Net IDs of multiple
CNPI-48 devices in the same system must be unique. To set the Net ID, make sure
power to the unit is disconnected and complete the following steps.
1. Locate the two miniature rotary switches labeled HI and LO on the front
face. The switches are located in the upper left corner of the unit. The
upper-most rotary switch (HI) represents the most-significant digit or
number of the Net ID and the lower rotary switch (LO) represent the
least-significant digit or number of the Net ID. Each 16-position rotary
hexadecimal switch can be set to a value ranging between 0 and F.
2. Use a small screwdriver and rotate the arrow in the center of the rotary
switch marked HI to the position of the most-significant digit or letter of the
unit’s Net ID.
3. Use a small screwdriver and rotate the arrow in the center of the rotary
switch marked LO to the position of the least-significant digit or letter of
the unit’s Net ID.
NOTE: It is safe to adjust the Net ID of the CNPI-48 while unit is connected to the
network. However, if the Net ID is changed while the unit is powered, the new Net
ID will not be recognized until the power is removed and reapplied.
Crestron CNPI-48 48-Button Control Panel Interface
Supplied Hardware
The hardware supplied with the CNPI-48 is listed in the following table.
Supplied Hardware for the CNPI-48
DESCRIPTION PART NUMBER QUANTITY
Cable Assembly, Indicator to Switch 4500699 4
Connector, Plug, 2-pin, SKT, Single Row 2003582 1
Connector, Plug, 4-pin, SKT, Single Row 2003584 1
Installation
The CNPI-48 can be placed on a horizontal or slightly sloped surface using the Dual
Lock fasteners found on the back face of the unit.
Hardware Hookup
Complete the following steps in the order specified to ensure proper connections for
the unit. Refer to the diagram below and the next page for typical hook-up diagrams
for the CNPI-48.
NOTE: When the CNPI-48 is not connected to the Cresnet control network and the
Net ID is greater than 80 (hexadecimal), the CNPI-48 provides local feedback (i.e., a
closure on input 1 causes output 1 to provide a closure).
Hardware Connections for CNPI-48
TYPICAL SWITCH CONNECTIONS
TO INPUT
CONNECTOR
COM
COM
TYPICAL LED CONNECTIONSTYPICAL INCANDESCENT CONNECTIONS
TO OUTPUT
CONNECTOR
+5V
+5V
1
2
1
2
TO OUTPUT
CONNECTOR
1
2
+24V
CONNECT TO
24V OUT
(Continued on following page)
Operations Guide – DOC. 8016C 48-Button Control Panel Interface: CNPI-48
• 7
48-Button Control Panel Interface Crestron CNPI-48
Hardware Connections for CNPI-48 (Continued)
INDICATOR OUTPUT
1 THRU 24
PIN
NUMBER
26
25
INDICATOR
NUMBER
1
2
INDICATOR OUTPUT
25 THRU 48
PIN
NUMBER
26
25
INDICATOR
NUMBER
25
26
3
2
1+5V+5V
SWITCH INPUT
1 THRU 24
PIN
NUMBER
1
2
24
25
26COMCOM
24
+5V
BUTTON
NUMBER
1
2
24
COM
3
2
1+5V+5V
PIN
NUMBER
1
2
24
25
26COMCOM
48
+5V
SWIT C H IN P U T
25 THRU 48
BUTTON
NUMBER
25
26
48
COM
1. Disconnect Cresnet power supply and any external power supp ly.
2. Wire the CNPI-48 4-pin connector, labeled NET IN, to the Cresnet control
network. Network termination points are available at the control system
power supply. Network units may also be daisy-chained together.
NOTE: When connecting the flat cable to the CNPI-48, insert the cable so that the
brown wire at the fringe of the ribbon connect to the pin #1 on the unit’s 26-pin
connector. The blue wire at the opposite fringe of the ribbon connects to the pin #26.
3. Use the supplied 26-position flat cables and wire the custom control panel
pushbuttons or switches to the two CNPI-48 26-pin male connectors,
labeled SWITCH INPUT 1 THRU 24 and SWITCH INPUT 25 THRU
48.
4. Use the supplied 26-position flat cables and wire the LED or incandescent
indicator on the custom panel to the two CNPI-48 26-pin male connectors,
labeled INDICATOR OUTPUT 1 THRU 24 and INDICATOR OUTPUT 25 THRU 48.
5. Connect power from the CNPI-48 2-pin connector, labeled OUT, to any
device that requires it.
6. OPTIONAL BARGRAPH INTERFACE:
All CNPI-48s have a 14-pin bargraph interface, labeled BARGRAPH,
which can be connected to a third-party bargraph display . R efer t o the
pinout diagram on the next page.
7. Reconnect and apply Cresnet power supply. Observe illumination of the
red LED marked I.D. SELECT and green LED marked NET POWER on
the board.
Operations Guide – DOC. 8016C 48-Button Control Panel Interface: CNPI-48
• 9
48-Button Control Panel Interface Crestron CNPI-48
Programming Software
Have a question or comment about Crestron software?
Answers to frequently asked questions (FAQs) can be viewed in the Online Help
section of the Crestron website. To post a question or view quest ions you have
submitted to Crestron’s True Blue Support, log in at
First-time users will need to establish a user account.
Earliest Version Software Requirements for the PC
NOTE: Crestron recommends that you use the latest software to take advantage of
the most recently released features. The latest software is available from the Crestron
website.
Crestron has developed an assortment of Windows®-based software tools to develop
a Cresnet system. The following are the minimum recommended software versions
for the PC:
http://support.crestron.com.
Configuration Manager
Software
TASK REQUIRED SOFTWARE VERSION
Program control system to
operate CNPI-48.
SIMPL Windows version 1.0 or later with
SIMPL+ Cross Compiler version 1.0 or later
and Library update 1.0 or later. Also
requires Crestron Database version 1.0 or
later.
Programming with SIMPL Windows
SIMPL Windows is Crestron’s premier software for programming Crestron control
systems. It is organized into two separate but equally important “Managers”.
Configuration Manager is the view where programmers “build” a Crestron control
system by selecting hardware from the Device Library.
• To incorporate the CNPI-48 into the system, drag the CNPI-48 from the
Wired Keypads folder of the Device Library and drop it in the System Views.
Locating the CNPI-48 in the Device Library
• The system tree of the control system displays the device in the appropriate
slot with a default Net ID as shown in the illustration on the next page.
• Additional CNPI-48 devices are assigned different Net ID numbers as they
are added.
• If necessary, double click a device to open the “Device Settings” window
and change the Net ID as shown in the following figure.
“CNPI-48 Device Settings” Window
• The ID code specified in the SIMPL Windows program must match the Net
Identity Code” on page 6.
Program Manager
ID of each unit. Refer to “
Program Manager is the view where programmers “program” a Crestron control
system by assigning signals to symbols.
The symbol can be viewed by double clicking on the icon or dragging it into Detail View. Each signal in the symbol is described in the SIMPL Windows help file (F1).
Operations Guide – DOC. 8016C 48-Button Control Panel Interface: CNPI-48
• 11
48-Button Control Panel Interface Crestron CNPI-48
Operation
The custom control panel can consist of pushbuttons or switches, which provide
closures to the CNPI-48 via its two 26-pin input connectors. The CNPI-48 translates
these closures into inputs to the Cresnet system via the Cresnet control network.
Any LED or incandescent indicators used in the custom control panel are treated as
network feedback outputs and driven by the CNPI-48 via its two 26-pin output
connectors. All CNPI-48s have a 14-pin bargraph interface which can be connected
to a third-party bargraph display (not included).
Crestron CNPI-48 48-Button Control Panel Interface
Problem Solving
Troubleshooting
The following table provides corrective action for possible trouble situations. If
further assistance is required, please contact a Crestron customer service
representative.
CNPI-48 Troubleshooting
TROUBLE POSSIBLE CAUSE(S) CORRECTIVE ACTION
Green NET
POWER
not illuminated.
Red I.D. SELECT
LED does not
illuminate.
LED is
CNPI-48 is not receiving
network power.
Net ID setting was
changed after CNPI-48
powered up.
CNPI-48 Net ID is not set
to match the Net ID of
the SIMPL Program.
Confirm power is supplied to
the network (i.e., check if
power supply is functioning
and wired properly).
Power down CNPI-48. Power
up to reset Net ID.
Verify that the Net ID for the
CNPI-48 is properly set to
match the SIMPL program.
Use the Right Wire
Calculate Power
Check Network Wiring
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.
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
http://www.crestron.com/calculators).
(
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 daisychained on the run, the Cresnet power usage of each network unit to be daisychained 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 th e following
equation to calculate the cable length value on the equation’s left side.
Cable Length Equation
40,000
L <
R x P
Operations Guide – DOC. 8016C 48-Button Control Panel Interface: CNPI-48
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 MM ))
P = Cresnet power usage of entire run (or chain)
2
2
• 13
48-Button Control Panel Interface Crestron CNPI-48
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. If Cresnet HP
is used for the same run, its length could extend to 1250 feet.
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.
Strip and Tin Wire
Add Hubs
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 up 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.
For larger networks (i.e., greater than 28 network devices), it may become necessary
to add a Cresnet Hub/Repeater (CNXHUB) to maintain signal quality throughout the
network. Also, for networks with lengthy cable runs it may be necessary to add a
Hub/Repeater after only 20 devices.
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
http://www.crestron.com/offices) for a listing of Crestron worldwide offices.
(
You can also log onto the online help section of the Crestron website
http://www.crestron.com/onlinehelp) 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 improves functions, adds new features and extends the capabilities of
the CNPI-48, 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 periodically for manual update availability and its
relevance. Updates are identified as an “Addendum” in the Download column.
Crestron CNPI-48 48-Button Control Panel Interface
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 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 material s
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 natur e 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, includ ing 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 and WindowsNT/2000 are trademarks of Microsoft Corporation.
Operations Guide – DOC. 8016C 48-Button Control Panel Interface: CNPI-48
• 15
Crestron Electronics, Inc. Operations Guide – DOC. 8016C
15 Volvo Drive Rockleigh, NJ 07647 (2002136)
Tel: 888.CRESTRON 05.07
Fax: 201.767.7576 Specifications subject to
www.crestron.com change without notice.
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