Linx Technologies CMD-HHCP-XXXB Compact Handheld Transmitter User Manual

Linx Technologies Compact Handheld Transmitter

User Manual

OEM Compact Handheld Transmitter Data Guide
Warning: Linx radio frequency ("RF") products may be used to control machinery or devices remotely, including machinery or devices that can cause death, bodily injuries, and/or property damage if improperly or inadvertently triggered, particularly in industrial settings or other applications implicating life-safety concerns. No Linx Technologies product is intended for use in any application without redundancies where the safety of life or property is at risk.The customers and users of devices and machinery controlled with RF products must understand and must use all appropriate safety procedures in connection with the devices, including without limitation, using appropriate safety procedures to prevent inadvertent triggering by the user of the device and using appropriate security codes to prevent triggering of the remote controlled machine or device by users of other remote controllers.Do not use this or any Linx product to trigger an action directly from the data line or RSSI lines without a protocol or encoder/ decoder to validate the data. Without validation, any signal from another unrelated transmitter in the environment received by the module could inadvertently trigger the action. This module does not have data validation built in.All RF products are susceptible to RF interference that can prevent communication. RF products without frequency agility or hopping implemented are more subject to interference. This module does not have frequency agility built in.Do not use any Linx product over the limits in this data guide. Excessive voltage or extended operation at the maximum voltage could cause product failure. Exceeding the reflow temperature profile could cause product failure which is not immediately evident.Do not make any physical or electrical modifications to any Linx product. This will void the warranty and regulatory and UL certifications and may cause product failure which is not immediately evident.!Table of Contents 1 Description 1 Features 1 Applications 2 Ordering Information 2 Electrical Specications 3 Theory of Operation 4 Protocols 5 Setting the Transmitter Address 5 Button Assignments 6 Connection Considerations 6 Battery Replacement 6 Assembly Diagram 7 Labeling / Instruction Requirements 8 Receivers 9 Typical Applications 11 Resources
– –1DescriptionThe CMD-HHCP-***-xxx-MD CompactHandheld transmitter is ideal for generalremote control and command applications. As a part of our DS Series encoder-based OEM family, it has been pre-certified for FCC Part 15, Industry Canada, and European CE (433MHz only) compliance, reducing development costs and time to market. Available in 315, 418 (standard) or433.92MHz, this compact remote has atransmission range of up to 750 feet line of sight. The transmitter unit can be configured with 1 to 8 buttons and the keypad and labeling can be customized. Selectable addressing allows the creation of up to 1,022 distinct transmitter-receiver relationships. The address can be easily changed via an externally accessible DIP switch. The transmission can be decoded using a matching Linx Function Module, KH2 or KH3 Series receiver / decoder, or a Linx LR or LT Series receiver paired with a decoder IC or microcontroller. The unit uses a single 3V CR2032 lithium button cell.Features• FCC, Canada and CE pre-certified• 1 to 8 buttons• Customizable keypad• Two protocols for performance (serial) and compatibility (Holtek)Applications• General remote control• Keyless entry• Garage / gate openers• Lighting control• Call systems• Home / industrial automationOEM Compact Handheld Transmitter Data GuideRevised 6/17/132.00"1.35"R 0.2"2.81"1.62" 0.60"0.20"Figure 1: Package Dimensions2134ABCDONONONONFASCOLightsSpaONONONOFFOFFOFFPoolFigure 2: With a one-time NRE and minimum order, Linx can configure the keypad and label areas to meet your specific requirements.
– – – –2 3Theory of OperationThe CMD-HHCP-***-MD Compact Handheld transmitter combines the LR Series transmitter with an internal Splatch Series antenna and an on-board DS Series encoder IC to form a simple, yet highly reliable, RF remote control transmitter. The LR transmitter is a low-cost, high-performance, synthesized ASK / OOK transmitter. The transmitter’s synthesized architecture delivers outstanding stability and frequency accuracy while minimizing the effects of antenna port loading and mismatching. This reduces or eliminates frequency pulling, bit contraction, and other negative effects common to SAW-based transmitter architectures, providing a significantly higher level of performance and reliability.When a button is pressed on the transmitter, power is applied to the internal circuitry and the encoder IC is enabled. The encoder detects the logic states of the address lines and button data lines. These states are formatted into a three-word transmission cycle that continues until the button is released. The encoder data is used to modulate the transmitter, which, through the antenna, conveys the data into free space. On the receiver side, a decoder IC or custom microcontroller is used to check the transmitter’s address bits against the address settings of the receiving device. If a match is confirmed, the decoder’s outputs are set to replicate the transmitter’s button states. These outputs can then be used to activate external circuitry required by the application.The transmitter is compatible with several Linx receiver products, including the LR, KH2, KH3 LT and OEM product families. For applications where range is critical, the LR Series receiver is the best choice due to its outstanding sensitivity. When the transmitter is combined with an LR Series receiver and the DS Series decoder, ranges of up to 750 feet are possible. Applications operating over shorter distances will also benefit from the increased link reliability and superior noise immunity provided by the LR Series receiver.Electrical SpecificationsParameter Designation Min. Typ. Max. Units NotesPower SupplyOperating Voltage VCC 2.1 3.0 3.6 VDCSupply Current lCC 3.4 mAPower-Down Current lPDN 5.0 nA 1Transmitter SectionTransmit Frequency Range FC CMD-HHCP-315-MD 315 MHz CMD-HHCP-418-MD 418 MHz CMD-HHCP-433-MD 433.92 MHzCenter Frequency Accuracy –50 +50 kHzEnvironmentalOperating Temperature Range –40 +85 °C 1Electrical SpecicationsOrdering InformationPart Number DescriptionCMD-HHCP-***-xxx-MD Compact Handheld TransmitterEVAL-***-HHCP HHCP Basic Evaluation Kit*** = 315, 418 (Standard) or 433.92MHzxxx = Custom color, leave blank for blackOrdering InformationFigure 3: Ordering InformationFigure 4: Electrical Specifications1. Characterized, but not tested
– – – –4 5Setting the Transmitter AddressThe Compact Handheld transmitter allows the selection of one of 1,022 unique addresses. All transmitters are supplied set to the same address. To avoid contention with other units or to create unique relationships, the address can be changed. This is accomplished using internal DIP switches as shown. The switches are accessed by removing the DIP switch access cover on the back of the transmitter.If the switch is on, the address line is connected to ground, otherwise it is pulled to supply. The receiver’s address must match exactly in order for the units to communicate. Application Note AN-00300 describes in detail how to set the address to match any of the receivers offered by Linx. This note can be found in the Support section of the Linx website, www.linxtechnologies.com.Button AssignmentsFigure 7 illustrates the relationship between the button locations and encoder data lines.OFF ONA0 = 1A1 = 2A2 = 3A3 = 4A4 = 5A5 = 6A6 = 7A7 = 8A8 = 9A9 = 10D7 D6D5 D4D3 D2D1 D0Figure 6: DIP Switch AssignmentsFigure 7: Button AssignmentsProtocolsThe DS Series encoder inside the Compact Handheld transmitter supports two protocols. The first protocol is based on the Holtek HT640 encoder and is completely backwards compatible with older generation transmitters and systems based on the HT658 decoder. The second is a serial protocol that offers more noise immunity and faster response time while keeping the simple addressing.The transmitter can use only one protocol at a time. The protocols do not work together.The protocol is selected with a switch next to the battery. Figure 5 shows this switch.If the switch is toward the top then the Holtek protocol is selected. If the switch is toward the bottom then the serial protocol is selected.Figure 5: Protocol Selection SwitchNote: Setting all of the DIP switches on or all of them off are not valid addresses. At least one switch must be different from the rest.
– – – –6 7Connection ConsiderationsIt is important to understand that only one transmitter at a time can be activated within a reception area. While the transmitted signal consists of encoded digital data, only one carrier of any particular frequency can occupy airspace without contention at any given time. If two transmitters are activated in the same area at the same time, then the signals will interfere with each other and the decoder will not see a valid transmission, so it will not take any action.Battery ReplacementThe remote unit utilizes a standard CR2032 lithium button cell. To replace the battery, remove the access cover by pressing down firmly on the label area and sliding it off. Once the unit is open, remove the battery by sliding it from beneath the holder. There may be the risk of explosion if the battery is replaced by the wrong type. Replace it with the same type of battery while observing the polarity shown in Figure 8.Assembly Diagram+BatteryaccessFigure 8: Battery AccessFigure 9: CMD-HHCP-***-MD AssemblyLabeling / Instruction RequirementsThe transmitter has been pre-certified for FCC Part 15 and Industry Canada license-exempt RSS standards for an intentional radiator. The 433.92MHz version has also been tested for CE compliance for use in the European Union. The 315MHz and 418MHz versions are not legal for use in Europe. It has already been labeled in accordance with FCC, Industry Canada and CE regulations. No further labeling of the unit is needed; however, it is necessary to include the following statement in the end product’s instruction manual or insert card. EU does not require a statement.INSTRUCTION TO THE USERThis device complies with Part 15 of the FCC Rules and Industry Canada licence-exempt RSS standard(s). Operation of this device is subject to the following two conditions:1. This device may not cause harmful interference, and2. 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.Theuseriscautionedthatchangesandmodicationsmadetotheequipmentwithoutthe approval of manufacturer could void the user’s authority to operate this equipment.Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radioexempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.
– – – –8 9Typical ApplicationsThe outstanding sensitivity of the LR Series receiver offers the best rangewhen used with the Handheld transmitter. When using the LR Series receiver, the DS Series decoder chip should be used to decode the received signal. This decoder has ten address lines that must match the transmitter address lines. A DIP switch is commonly used to set these, but they can also be hardwired. As long as the address lines match, when a button on the transmitter is pressed, a corresponding data line on the decoder (D0–D7) goes high. These data lines can then be connected to external circuitry to perform whatever function is required by the application.Figure 11 shows a typical schematic using the LR Series receiver and the DS Series decoder.P_SEL1D02D13D24D35D46D57GND8D69D710E/D_SEL11D_CFG12A_CFG013A_CFG114 A0 15A1 16A2 17A3 18GND 19VCC 20A4 21A5 22A6 23A7 24A8 25A9 26TE/DI 27VT/DO 28LICAL-EDC-DS001VCCGNDGNDGNDVCCGNDD0D1D2D3D4D5D6D7VT12320191845617161578914131210 11100k 100k 100k 100k 100k100k100k100k100k100kVCCGNDVCCGNDVCCHoltekSerialGNDGNDGNDANTENNANC1NC2NC3GND4VCC5PDN6RSSI7DATA8NC 9NC 10NC 11NC 12NC 13NC 14GND 15ANT 16RXM-xxx-LRVCCFigure 11: LR Receiver and DS Decoder SchematicReceiversThere are four options for receivers within the Linx product line. The first option is to use one of the OEM Function Modules, such as the Relay Module. These items are also pre-certified and can be immediately included in a product.The other options are to use one of the Linx receiver modules. The signal sent by the Keyfob transmitter can be received by the LR Series receiver module or the LT Series transceiver module. These modules can be connected to the DS Series decoder to decode the signal, or a custom microcontroller can be programmed to decode it and take specific action.The KH2 or KH3 Series offers a slightly simpler solution by combining the LR Series receiver and the Holtek or DS Series decoder in a single package. The KH2 Series receiver only supports the Holtek protocol, not the serial protocol. The KH3 Series receiver supports both protocols.When a button is pressed on the transmitter, a corresponding line on the decoder goes high (as long as the addresses match). This can then be connected to whatever circuitry is required by the application.Application Note AN-00300 discusses in detail how to set the addresses on all of the units. Data guides for all of the receivers, the Holtek HT640 encoder, HT658 decoder and the DS Series decoder can be found on the Linx website, www.linxtechnologies.com.Figure 10: Linx Receivers
– – – –10 11ResourcesSupportFor technical support, product documentation, application notes, regulatory guidelines and software updates, visit www.linxtechnologies.comRF Design ServicesFor customers who need help implementing Linx modules, Linx offers design services including board layout assistance, programming, certification advice and packaging design. For more complex RF solutions, Apex Wireless, a division of Linx Technologies, creates optimized designs with RF components and firmware selected for the customer’s application. Call +1 800 736 6677 (+1 541 471 6256 if outside the United States) for more information.Antenna Factor AntennasLinx’s Antenna Factor division has the industry’s broadest selection of antennas for a wide variety of applications. For customers with specialized needs, custom antennas and design services are available along with simulations of antenna performance to speed development. Learn more at www.linxtechnologies.com. by1232019184561716157891413121011S1GNDVCCGNDB1BAT-HLD-00112345678910111213141516RN1R2100KGNDTER5 100KR4 100KGNDC10.1uFTER70 ohmR80 ohmGNDVCCS2R10 ohmVCCTESet for FCCComplianceGNDR3GNDGNDVCCGND1DATA2GND3LADJ/VCC4ANT5GND 6VCC 7PDN 8TX1TXM-XXX-LRR6 0 ohm123U2123U3123U4123U5D0D1D2D3D4D5D6D778563412910111213141516RN2GNDD0D1D2D3D4D5D6D7VCCSW1 1SW2 2SW3 3SW4 4SW5 5SW6 6SW7 7SW8 8COM 9SM1MEMBRANE SWITCHD0D1D2D3D4D5D6D7VCC123456789J1D0D1D2D3D4D5D6D7GNDGNDGNDGNDVCCP_SEL1D02D13D24D35D46D57GND8D69D710TE/DI 27VT/DO 28A4 21A5 22A6 23A7 24A2 17A3 18GND 19VCC 20A0 15A1 16A8 25A9 26E_D11D_CFG12A_CFG013A_CFG114U1LICAL-EDC-DS001VCCVCCD0D1D2D3D4D5D6D7RF1GND2GND3GND4GND5GND6ANT1ANT-XXX-SPGNDGNDGNDGNDGNDFigure 12: CMD-HHCP-***-MD Schematic
Linx Technologies159 Ort LaneMerlin, OR, US 975323090 Sterling Circle, Suite 200Boulder, CO 80301Phone: +1 541 471 6256Fax: +1 541 471 6251www.linxtechnologies.comDisclaimerLinx Technologies is continually striving to improve the quality and function of its products. For this reason, we reserve the right to make changes to our products without notice. The information contained in this Data Guide is believed to be accurate as of the time of publication. Specifications are based on representative lot samples. Values may vary from lot-to-lot and are not guaranteed. “Typical” parameters can and do vary over lots and application. Linx Technologies makes no guarantee, warranty, or representation regarding the suitability of any product for use in any specific application. It is Customer’s responsibility to verify the suitability of the part for the intended application. At Customer’s request, Linx Technologies may provide advice and assistance in designing systems and remote control devices that employ Linx Technologies RF products, but responsibility for the ultimate design and use of any such systems and devices remains entirely with Customer and/or user of the RF products. LINX TECHNOLOGIES DISCLAIMS ANY AND ALL WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL LINX TECHNOLOGIES BE LIABLE FOR ANY CUSTOMER’S OR USER’S INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF OR RELATED TO THE DESIGN OR USE OF A REMOTE CONTROL SYSTEM OR DEVICE EMPLOYING LINX TECHNOLOGIES RF PRODUCTS OR FOR ANY OTHER BREACH OF CONTRACT BY LINX TECHNOLOGIES. CUSTOMER AND/OR USER ASSUME ALL RISKS OF DEATH, BODILY INJURIES, OR PROPERTY DAMAGE ARISING OUT OF OR RELATED TO THE USE OF LINX TECHNOLOGIES RF PRODUCTS, INCLUDING WITH RESPECT TO ANY SERVICES PROVIDED BY LINX RELATED TO THE USE OF LINX TECHNOLOGIES RF PRODUCTS. LINX TECHNOLOGIES SHALL NOT BE LIABLE UNDER ANY CIRCUMSTANCES FOR A CUSTOMER’S, USER’S, OR OTHER PERSON’S DEATH, BODILY INJURY, OR PROPERTY DAMAGE ARISING OUT OF OR RELATED TO THE DESIGN OR USE OF A REMOTE CONTROL SYSTEM OR DEVICE EMPLOYING LINX TECHNOLOGIES RF PRODUCTS.The limitations on Linx Technologies’ liability are applicable to any and all claims or theories of recovery asserted by Customer, including, without limitation, breach of contract, breach of warranty, strict liability, or negligence. Customer assumes all liability (including, without limitation, liability for injury to person or property, economic loss, or business interruption) for all claims, including claims from third parties, arising from the use of the Products. Under no conditions will Linx Technologies be responsible for losses arising from the use or failure of the device in any application, other than the repair, replacement, or refund limited to the original product purchase price. Devices described in this publication may contain proprietary, patented, or copyrighted techniques, components, or materials. © 2013 Linx Technologies. All rights reserved. The stylized Linx logo, Wireless Made Simple, CipherLinx, WiSE and the stylized CL logo are trademarks of Linx Technologies.

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