background image

Crestron 

CNRFGWA

 Wireless 

RF 

Receiver

 

Operations Guide - DOC. 8086A  

Wireless RF Receiver: CNRFGWA  

  13 

Appendix: Optimum RF Reception Guidelines

 

Many factors can affect the reliability of RF communication between an RF 
touchpanel or remote device and an RF gateway. While an effort has been made to 
determine operating specifications, some specifications are not constant. RF 
Communication can be limited by several factors including but not limited to EMI 
(electromagnetic interference), intervening objects, antenna orientation, and receiver 
placement. To obtain maximum reliability and performance, some basic rules for 
installing RF receivers are listed below. 

Minimize Interference

 

RF reception range can be hindered by spurious EMI noise that may interfere with or 
mask the desired frequency thereby reducing useable range. EMI is generated by any 
electrical device at various RF noise levels depending on the device. Sources of EMI 
include computers, video equipment, digital processors, lighting dimmers, lighting 
ballasts, motors or any large AC source. Every effort should be made to separate any 
RF transmitter/receiver from these sources of RF noise including Audio Visual 
equipment in racks. If a gateway must be installed in an equipment rack, make sure 
you have ample separation between the equipment and the gateway.  

Gateway Placement

 

Optimum reception for any RF gateway is obtained by installing the gateway in an 
open area or shelf with a clear line of sight (no obstructions between gateway and 
touchpanel or wireless remote). Crestron recommends placing the gateway at least 
five to six feet high for best results. Avoid placing gateways or touchpanels/remotes 
at a low height or on the ground. Placing RF equipment near metal objects, walls, 
corners or metal enclosures will compromise RF propagation and reception. Try to 
avoid installing gateways in equipment racks, service rooms or electrical closets. For 
best results, Crestron recommends that the gateway be placed in the same room that 
the touchpanel or remote is located. 

Antenna Orientation

 

The antenna orientation of the Crestron gateway has considerable effect on range and 
reliability. Optimum performance is obtained by setting the gateway horizontally 
(antenna parallel to the ground) at right angles to the touchpanel. When absolutely 
necessary, two alternate orientations are possible–each will be less effective than the 
horizontal orientation: 

 

Point the antenna vertically  

 

Point the antenna toward the wireless touchpanel/remote.  

Never point the antenna downward. This will decrease range and reliability. Refer to 
illustrations on the next page for examples of the different antenna orientations. 

NOTE:

  RF propagation is best from the sides of the antenna.   

Содержание CNRFGWA

Страница 1: ...Crestron CNRFGWA Wireless RF Receiver Operations Guide ...

Страница 2: ...n by the Technical Documentation department at Crestron Electronics Inc 15 Volvo Drive Rockleigh NJ 07647 1 888 CRESTRON All brand names product names and trademarks are the property of their respective owners 2003 Crestron Electronics Inc ...

Страница 3: ...p 6 Programming Software 6 Earliest Version Software Requirements for the PC 7 Programming with SIMPL Windows 7 Uploading 7 Communication Settings 8 Uploading a SIMPL Windows Program 10 Problem Solving 11 Troubleshooting 11 Further Inquiries 12 Future Updates 12 Appendix Optimum RF Reception Guidelines 13 Minimize Interference 13 Gateway Placement 13 Antenna Orientation 13 Return and Warranty Poli...

Страница 4: ......

Страница 5: ...operates at 433 92 MHz the other CNRFGWA 418 operates at 418 MHz Except for operating frequency the units are functionally identical The gateway receives RF signals from one or more wireless one way touchpanels such as the ST 1550 ST 1550C ST 1700C and MT 500C 418 MHz only and wireless remotes such as the CNWM CNRFT 32A and 48A and CNRFHT 15A and 30A The CNRFGWA gateway translates the received sig...

Страница 6: ...e unit 2 The latest versions can be obtained from the Downloads Software Updates section of the Crestron website www crestron com Refer to NOTE after last footnote 3 Crestron 2 Series control systems include the AV2 AV2 with Card Cage CP2 CP2E PAC2 MC2W MC2E MP2 MP2E PRO2 and RACK2 4 Filenames for CNX and ST CP update files have a UPZ extension Files on the website may be zip or self extracting ex...

Страница 7: ...I LO SWITCHES These two rotary switches are used to set the unit s network identity code Refer to Identity Code on page 5 for details CNRFGWA Indicators Three LEDs located on the front panel of the CNRFGWA indicate the unit s status Refer to the descriptions on the next page 433 92 MHZ 50 MODEL CNRFGWA CRESTRON ANTENNA NET POWER I D SELECT SIGNAL NET 24 Y Z G LO ID CODE HI INCLUDING INTERFERENCE T...

Страница 8: ...e must accept any interference received including interference that may cause undesired operation 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 The equipment generates uses and can radiate r...

Страница 9: ...th of run or chain in feet PF Power factor of entire run or chain R L x PF 40 000 Where The required wire gauge should be chosen such that the resistance value is less than the value calculated in the resistance equation Refer to the table after this paragraph Wire Gauge Values RESISTANCE R WIRE GAUGE 4 16 6 18 10 20 15 22 13 Doubled CAT5 8 7 Tripled CAT5 NOTE All network wiring must consist of tw...

Страница 10: ...and open the Crestron Viewport Either launch the stand alone version of Viewport or start SIMPL Windows or VT Pro e and from the menu bar select Tools Viewport 4 From the Viewport menu select Functions Set Network ID The software checks the baud rate and then opens the Set Network ID window 5 In the Set Network ID window select the CNRFGWA from the Current Network Devices text window and verify th...

Страница 11: ...MPL Windows is Crestron s software for programming Crestron control systems It provides a well designed graphical environment with a number of workspaces i e windows in which a programmer can select configure program test and monitor a Crestron control system To create a program with a CNRFGWA consult the operations and installation guide for any of the one way wireless RF touchpanels or remote de...

Страница 12: ...ad it is necessary to establish communications Communication Settings NOTE For laptops and other PCs without a built in RS 232 port Crestron recommends the use of PCMCIA cards rather than USB to serial adapters If a USB to serial adapter must be used Crestron has tested the following devices with good results Belkin large model F5U103 I O Gear GUC232A Keyspan USA 19QW Other models even from the sa...

Страница 13: ...ne the data bits is Eight the stop bits is One XON XOFF is not selected and RTS CTS is selected Click the OK button to save the settings and close the window Port Settings Window NOTE The parameters shown in the illustration above are the port settings for a 2 Series control system Consult the Operations Guide for the control system being used for exact parameter selection 4 To verify communicatio...

Страница 14: ...t the procedure for Communication Settings that begins on page 8 has been performed 2 As shown below select File Transfer Send Program Alternatively press Alt P from the Viewport menu File transfer Send Program Command 3 The Send Program window appears as shown after this step Click Browse locate the completed file spz for PRO2 and click Open This displays the program s header information and enab...

Страница 15: ...the SIMPL program Open Viewport and press F4 to poll the network Verify that the Net ID for the CNRFGWA is properly set to match the SIMPL program Net ID setting changes after CNRFGWA powered up Power down the CNRFGWA then power up to reset the Net ID Network wiring incorrect Check network cabling for solid connections and correct pinouts Unit is damaged Contact Customer Service Refer to Further I...

Страница 16: ... 613 9480 2999 You can also log onto the online help 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 improves functions adds new features and extends the capabilities of the CNRFGWA additional information and programming examples m...

Страница 17: ...ve ample separation between the equipment and the gateway Gateway Placement Optimum reception for any RF gateway is obtained by installing the gateway in an open area or shelf with a clear line of sight no obstructions between gateway and touchpanel or wireless remote Crestron recommends placing the gateway at least five to six feet high for best results Avoid placing gateways or touchpanels remot...

Страница 18: ...Wireless RF Receiver Crestron CNRFGWA 14 Wireless RF Receiver CNRFGWA Operations Guide DOC 8086A Horizontal Orientation Vertical Orientation Horizontal Toward Touchpanel ...

Страница 19: ...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...

Страница 20: ...Crestron Electronics Inc Operations Guide DOC 8086A 15 Volvo Drive Rockleigh NJ 07647 10 03 Tel 888 CRESTRON Fax 201 767 7576 Specifications subject to www crestron com change without notice ...

Отзывы: