WIRELESS MADE SIMPLE ® 4-POSITION RELAY FUNCTION MODULE DATA GUIDE DESCRIPTION 3.100" The Relay Function Module is a member of the Linx pre-certified OEM product line. The modules have been tested for FCC and Industry Canada compliance and can be quickly customized to meet a specific OEM’s labeling requirements. This greatly reduces 3.200" the time and expense of bringing an RFbased product to market. The Relay Function Modules provide four latched or 1.770" momentary relay outputs that are capable of switching external AC or DC powered loads 4.700" of up to 5 amps. The Relay Modules 5.775" incorporate a Linx LR Series receiver and an on-board Holtek decoder IC. Selectable Figure 1: Package Dimensions addressing provides security and allows the creation of 256 distinct transmitter / receiver relationships to avoid unwanted interaction when multiple systems are in use. When paired with a compatible Linx OEM Handheld transmitter or transmitter module, the Relay Function Module serves as a reliable wireless switching device at distances of up to 1,000 feet. FEATURES FCC, Industry Canada pre-tested Wide operational voltage (5 to16VDC) Dual power inputs Long-life relays switch AC or DC Flange-mount case Quick-attach heavy-duty device connectors 256 unique addresses Can be cosmetically customized for OEM applications APPLICATIONS INCLUDE General Remote Control Motor Control Garage / Gate Openers Lighting Control Call Systems Home / Industrial Automation Wire Elimination ORDERING INFORMATION PART # FCTN-RLY4-315 FCTN-RLY4-418 FCTN-RLY4-433 DESCRIPTION Relay Function Module - 315MHz Relay Function Module - 418MHz Relay Function Module - 433MHz Revised 1/28/08 ELECTRICAL SPECIFICATIONS Parameter Designation Min. THEORY OF OPERATION Typical Max. Units Notes POWER SUPPLY Operating Voltage VCC 5.0 – 16.0 VDC – Supply Current ICC 12.0 – 170.0 mA 1 FCTN-RLY4-315 – 315 – MHz – FCTN-RLY4-418 – 418 – MHz – FCTN-RLY4-433 – 433.92 – MHz – RECEIVER SECTION Receive Frequency Range FC Center Frequency Accuracy – -50 – +50 kHz – Receiver Sensitivity – -106 -112 -118 dBm 2 RELAY CHARACTERISTICS Arrangement – Switched Power – – – 150 watts – – – – 1250 VA – – 0.0 – 30.0 VDC – – 0.0 – 250.0 VAC – Switched Device Current – 0.6 – 5.0 A – Operate Time – – 6.0 – mS – Release Time – – 3.0 – mS – cycles – Relay Switching Voltage SPST Life Expectancy Mechanical – 20 million Electrical – 1x10-5 @ 5A – 30VDC or 250VAC Contact Dielectric Strength (at sea level for 1 minute) – 750Vrms between open – 3000Vrms contact-to-coil – Storage Temperature Range -40 – +85 -45 – +85 °C °C 1 1 Notes 1. Characterized, but not tested. 2. For BER of 10-5 at 1,200bps. 2 3 4 J3 J5 J4 Jumper Pads Figure 3: Jumper Pad Locations The module should be powered from a DC source that is free of noise and high ripple. The best results are normally obtained using a battery or high quality AC wall adapter capable of providing the supply currents indicated in the Electrical Specifications section. Two supply connection options are provided: black (ground) and red (+) quick-connect terminals or a barrel jack (for a 5.5mm plug, tip 7 to 16VDC, shell ground). Only one connection should be used at a time and polarity should be observed. 3. “Quick-Connect” Alternate DC Input 4. Switched Device Connectors 4 5 3 2 Figure 2: Relay Module Features OFF ON 2. DC Power Connector (5 to 16VDC) A0 = 8 A1 = 7 A2 = 6 A3 = 5 A4 = 4 A5 = 3 A6 = 2 A7 = 1 The Relay Function Module provides a total of 256 unique addreses to avoid contention with other units or to create unique relationships. Address selection is made via eight externally accessible DIP switches as shown in the adjacent figure. 1 1. Antenna Page 2 1 J2 SETTING THE MODULE ADDRESS RELAY FUNCTION MODULE FEATURES 5. Address Selector DIP Switches Relay Jumper POWER SUPPLY CONSIDERATIONS ENVIRONMENTAL Operating Temperature Range The FCTN-RLY4-*** module combines the popular Linx LR Series receiver with a decoder IC and four relays that are capable of switching a variety of AC or DC loads. The Relay Function Module is designed to receive a wireless signal transmitted from a compatible Linx RF module or precertified OEM transmitter. When transmitted data is received, the data is presented to the decoder. The decoder detects the logic states of the DIP switch address lines, and if they match the address settings of the encoder, the decoder’s outputs are set to replicate the state of the encoder’s data lines. The relay outputs are then latched on or off. If momentary operation is desired, jumper pads J2 through J5 can be bridged. Figure 3 displays the location of the pads. Each jumper corresponds to a relay as shown. If the switch is on, the address line is connected to ground, otherwise it is floating. The transmitter’s address must match exactly in order for the Figure 4: Address DIP Switches units to communicate. Application Note AN-00300 describes in detail how to set the address to match any of the transmitters offered by Linx. This application note can be found in the Support section of the Linx website, www.linxtechnologies.com. Page 3 SWITCHED DEVICE ATTACHMENT ANTENNA ORIENTATION The Relay Function Module features heavy-duty quick-connect block terminals for attaching the devices to be switched. To use the terminals, press and hold the button over the entry channel to release the contact. Insert the wire and then release the button to allow the internal contact to clamp down on the wire. The terminals accept wire gages from 16 to 26 AWG. Funnel-shaped entry channels help prevent fraying when using untinned wire. The terminal block is arranged as shown in the figure below. There is no polarity on the relay terminals and they may be used in any order (or left unterminated) without internal damage. Do not attempt to switch loads in excess of the limits listed in the Electrical Specifications section. The module does not provide internal protection for shorted loads. Therefore, the designer must provide external protection, such as fusing, if the possibility of shorting exists. Since the control signals for the Relay Function Module are sent through the air, the physical orientation of the transmitter and receiver plays a critical role in determining the overall range of the system. The antenna may be tilted and swiveled to adjust for maximum range in your environment. In most cases, orienting the antenna in a vertical position will result in optimum system performance and the greatest range. RELAYS GND 1 2 3 4 5-16VDC Poor Optimum Acceptable Figure 6: FCTN-RLY4-*** Antenna Orientation Figure 5: Relay Connection Block INTERFERENCE CONSIDERATIONS It is important to remember that the range performance of the modules is heavily dependent on the environment in which they are operated. The effects of interference, multipath, and physical attenuation will vary significantly from location to location. The Relay Function Module is based on the Linx LR Series RF receiver. These are simple low-cost devices intended for short-range transmissions. They utilize OOK AM-based modulation. AM devices can be affected by external noise, such as that from motors or other sources of broadband RF emissions. Interference can also come from sources such as paging towers or amateur radio activity. The designer should carefully test the Relay Function Module in the environment in which it will be used to ensure that its performance is appropriate for the chosen application. The placement of the module in the final product will also affect the range and performance of the system. If the module is to be placed inside an enclosure, then the enclosure must be plastic or another non-conductive material. Otherwise, a hole must be cut into the enclosure to allow the antenna to stick out as the metal or conductive enclosure will shield the module and it will not be able to receive a valid transmission. In this case, the antenna should stick straight out of the enclosure and should not be bent to rest parallel to the metal. This will detune the antenna and significantly reduce its performance. The module should be placed in a position to have the widest line-of-sight field so that the range may be maximized. Typically, the module will be placed on top of the product to accommodate this, especially when used with machinery. Remote location of the module’s antenna is not possible as it will invalidate the FCC testing, so the positioning of the module and its antenna is an important consideration in the design of the system. CONTENTION CONSIDERATIONS An unlimited number of Relay Function Modules may be operated in proximity without interference, but 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, the signals will interfere with each other, so the Relay Module will not see a valid transmission and will not take any action. Page 4 Page 5 LABELING REQUIREMENTS COMPLIANCE REQUIREMENTS In cases where the FCTN-RLY4-*** module is incorporated inside a product and its standard labeling is not visible, the end product must be labeled as shown below. • The following label shall be affixed in a conspicuous location to any device previously self-certified under the FCC’s Declaration of Conformity process, when the product is authorized based on assembly using separately authorized components and the resulting product does not require additional testing: Trade Name Model Number The FCTN-RLY4-*** has been tested by an FCC-approved facility and been found to comply with all applicable FCC and Industry Canada requirements as of the date of this document. A Declaration of Conformity (DoC) is on file. It is the user’s responsibility to consult the FCC or other testing body to determine if any additional testing may be required on the user’s completed product. In products where no additional testing is required, further labeling of the unit is not needed unless the module will be placed inside another housing. It is, however, necessary to include the following statement in the end product’s instruction manual or insert card. INSTRUCTION TO THE USER This device complies with Part 15 of the FCC Rules. Operation of this device is subject to the following two conditions: Assembled From Tested Components (Complete System Not Tested) • When the device is constructed in two or more sections connected by wires and marketed together, the label is required to be affixed only to the main control unit. • When the device is so small, or for such use that it is not practical to place the statement on the unit itself, the information shown on the label shall be placed in a prominent location in the instruction manual or pamphlet supplied to the user or, alternatively, shall be placed on the container in which the device is marketed. However, the unique FCC logo, device trade name, and model number must be present on the device. • The label shall not be a stick-on paper label. The label shall be “permanently affixed” to the device (meaning the label is etched, engraved, stamped, silkscreened, indelibly printed on a permanently attached part of the device, or on a nameplate fastened to the equipment by welding, riveting, or a permanent adhesive). The label must be designed to last the expected lifetime of the equipment in the environment in which the equipment may be operated and may not be readily detachable. (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. This equipment has been certified to comply with the limits for a Class B computing device, pursuant to FCC Rules. In order to maintain compliance with FCC regulations, shielded cables must be used with this equipment. Operation with non-approved equipment or unshielded cables is likely to result in interference to radio and TV reception. The user is cautioned that changes and modifications made to the equipment without the approval of manufacturer could void the user’s authority to operate this equipment. Place the above statement in the instruction manual or insert card. Page 6 Page 7 TRANSMITTERS ONLINE RESOURCES The Relay Function Module incorporates a Linx LR Series receiver paired with a Holtek HT658 decoder IC. This means that there are several options available for controlling the module. The first option is to use one of the pre-certified OEM transmitters offered by Linx. These transmitters come in several packages and can be customized to bear the logo or other artwork required by the customer. The only setup required by the customer is to set the address of the transmitter and the Relay Module. www.linxtechnologies.com There are four OEM transmitters that can be used with the Relay Function Figure 7: Pre-Certified Transmitters Module: the Full Size Handheld, the Compact Handheld, the Long-Range Handheld, and the Keyfob. The Full Size Handheld uses the same eight address lines used by the Relay Function Module, so they only need to be set the same for proper function. The other three transmitters use all ten address lines offered by the Holtek ICs while the Relay Function Module uses eight. This means that the last two address lines on the transmitters (A8 and A9) must be left floating (turn off the DIP switches on the handhelds, cut traces 8 and 9 on the Keyfob). The other address lines can be set to whatever the user desires, as long as the transmitter and the Relay Function Module match. A custom transmitter can also be created with a KH Series transmitter or an LC or LR Series transmitter paired with a Holtek HT640 encoder or microprocessor. Because the Holtek ICs have 10 address lines, the last two lines (A8 and A9) must be left open. The Holtek address lines are tri-state, meaning that they have three valid input conditions: high, low, or floating. The Relay Function Module uses only the low and floating states, so the custom transmitter can only use these states as well. The lines that are floating should be left open and have no electrical connection. It should be noted that the Keyfob transmitter does not allow full functionality of the Relay Function Module. Each of the four relays in the module uses two data lines for a total of eight. The Keyfob transmitter offers a maximum of five buttons, so at most, it can control two relays in latched operation and three in momentary operation. • • • • • Latest News Data Guides Application Notes Knowledgebase Software Updates If you have questions regarding any Linx product and have Internet access, make www.linxtechnologies.com your first stop. Our website is organized in an intuitive format to immediately give you the answers you need. Day or night, the Linx website gives you instant access to the latest information regarding the products and services of Linx. It’s all here: manual and software updates, application notes, a comprehensive knowledgebase, FCC information, and much more. Be sure to visit often! www.antennafactor.com The Antenna Factor division of Linx offers a diverse array of antenna styles, many of which are optimized for use with our RF modules. From innovative embeddable antennas to low-cost whips, domes to Yagis, and even GPS, Antenna Factor likely has an antenna for you, or can design one to meet your requirements. RE3 OFF RE4 ON RE2 ON RE3 ON RE4 OFF Application Note AN-00300 describes in detail how to set the Relay Function Module address to Figure 8: Keyfob Button / Relay Relationships match any of the transmitters offered by Linx. This note can be found in the Support section of the Linx web site, www.linxtechnologies.com. Page 8 ® www.connectorcity.com Through its Connector City division, Linx offers a wide selection of high-quality RF connectors, including FCCcompliant types such as RP-SMAs that are an ideal match for our modules and antennas. Connector City focuses on high-volume OEM requirements, which allows standard and custom RF connectors to be offered at a remarkably low cost. Page 9 VCC12 ANT1 ANTENNA JP1 VCC 1 2 3 4 5 6 7 8 9 10 VCC RX1 1 R10 270 ohm 2 3 4 GND 5 C4 0.01uF 6 7 GND 8 NC ANT NC GND NC NC GND NC VCC NC PDN NC NC NC DATA NC 16 U1 15 1 2 3 4 5 6 7 8 9 10 11 12 RESET RE4 SET RE3 RESET RE3 SET RE2 RESET RE2 SET RE1 RESET RE1 14 GND 13 12 11 10 9 R7 390k RX-LR-S D1 D2 D3 D4 D5 D6 D7 VT DIN OSC1 OSC2 GND VCC D0 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 24 23 22 21 20 19 18 17 16 15 14 13 SET RE4 S1 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 V- VCC VCC VCC RE1 RE3 D1 D2 D3 4148 4148 Q1 2N2222 VCC12 U5 LDO VREG Q3 2N2222 Q4 2N2222 Vout Vin GND 1 + R1 2.2k 3 + C2 10uF R4 10k R2 2.2k GND GND R5 10k GND GND R3 2.2k R6 10k GND GND R8 2.2k R9 10k GND GND 2 PWRJACK 4148 Q2 2N2222 VCC J1 C1 1000uF D4 GND 4148 V- RE4 HT658 GND V+ SWV- VCC RE2 D5 1N4001 V- GND VCC VCC R15 R16 R17 R18 100k 100k 100k 100k RESET RE1 RESET RE2 J2 R23 JUMPER-SMT SET RE1 SET RE4 3 U2 C3 0.1uF 2 4 1 U4 270k 1 2 3 4 5 6 7 R11 560k GND DPAK-X2 C5 0.1uF R12 560k JUMPER-SMT R24 OUTA INAINA+ VCC INB+ INBOUTB OUTD INDIND+ GND INC+ INCOUTC R19 JUMPER-SMT 270k 14 13 12 11 10 9 8 R13 560k C6 0.1uF 1 U3 4 R14 560k R26 LMV324 2 C7 0.1uF 3 R21 JUMPER-SMT J5 R22 RESET RE4 SET RE3 DPAK-X2 270k R20 SET RE2 GND 270k J4 J3 R25 RESET RE3 100k 100k 100k 100k Figure 9: FCTN-RLY4-*** Schematic Diagram Page 10 Page 11 WIRELESS MADE SIMPLE ® U.S. CORPORATE HEADQUARTERS LINX TECHNOLOGIES, INC. 159 ORT LANE MERLIN, OR 97532 PHONE: (541) 471-6256 FAX: (541) 471-6251 www.linxtechnologies.com Disclaimer Linx 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 Overview 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 the customer's responsibility to verify the suitability of the part for the intended application. NO LINX PRODUCT IS INTENDED FOR USE IN ANY APPLICATION WHERE THE SAFETY OF LIFE OR PROPERTY IS AT RISK. Linx Technologies DISCLAIMS ALL WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 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