UTVWREP4CRTRadio Frequency(RF) Repeater

INSTALLATION AND OPERATION INSTRUCTION WREP-4C RADIO FREQUENCY (RF) REPEATER Orion Energy Systems WARNING Read this manual completely before the wiring, installation and operation of this device. This device is for in-door use only. Danger with high voltage 120 VAC or 208 to 277 VAC. There are risks of electrical shock if this device is not wired or installed properly. This device must be installed by a qualified personnel. DESCRIPTION WREP-4C is a radio frequency repeater which receives the radio frequency signal from either an Orion Energy Systems WTRA-4C transmitter or another WREP-4C repeater. After the repeater receives the signal, it re-transmits the signal to Orion Energy Systems WREC-2R receivers, pauses, transmit another signal to the next repeater down the link which enables the down link repeater to further relay the signal. INSTALLATION AC power supply connection: Warning: Turn power off before you connect this device to your power supply. Make sure your power supply voltage matches the transmitter power supply requirements: 120 VAC or 208 to 277 VAC. For power supply 120 VAC, connect the white wire to neutral and the black wire to the line, leave the red wire alone and cover its end with wire nut. Failure to terminate the unused wire presents a shock hazard. For 208 to 277, connect the white wire to either the neutral or line and connect the red wire to the other line, leave the black wire alone and cover its end with wire nut. Failure to terminate the unused wire presents a shock hazard. Coding: There are three (3) jumper sockets J1, J2 and J3 on the repeater printed circuit board as shown in FIGURE 1 WREP-4C REPEATER PCB BOARD LAYOUT. 1 FIGURE 1 WREP-4C RF TRANSMITTER PCB BOARD LAYOUT J1 is for receiving address, J2 is for control address and J3 is for repeating address. Each of the jumper sockets needs to be coded properly in order for the repeater to work properly. J1, the receiving address, which needs to be coded either exactly the same as the transmitter if it is the first repeater on the repeating link or exactly the same as the repeating address on the repeater right ahead of it on the repeating link. For examples, if the repeater is the first repeater on the repeating link and Orion Energy System WTRA- 4C transmitter address is coded with jumpers between pin 4H and its central pin, and 1L and its central pin, you need to install the jumpers at the same position on the repeater’s J1 jumper socket. For transmitter address coding details, please refer to INSTALLATION AND OPERATION INSTRUCTION WTRA-4C RADIO FREQUENCY (RF) TRANSMITTER Orion Energy Systems If the repeater is not the first one on the repeating link, J1, the receiving address on this repeater, needs to be coded exactly the same as the J3 repeating address on the repeater right ahead of it on the repeating link. Please refer to the following paragraph for repeating address coding. J2, the control address, needs to be coded exactly the same as Orion Energy Systems WREC-2R receiver address. For receiver address coding details, please refer to INSTALLATION AND OPERATION INSTRUCTION WREC-2R RADIO FREQUENCY (RF) RECEIVER Orion Energy Systems J3, the repeating address, can be coded as you choose, but the receiving address on the repeater right next to it down the repeating link needs to be the same. For examples you can install a jumper between pin 1H and its central pin and leave the rest of the pins without any jumpers, it forms a repeating address. Different jumper configurations form different addresses including no jumper at all. 2 IMPORTANT: The receiving, control and repeating addresses on one repeater must be different. The control address on all the repeaters must be different from any receiving or repeating addresses on the repeating chain. When a repeater is used, the receiver address can not the same as the transmitter address. If above rules are followed, there will be no ping pong effect when the signal is relayed. Here is how the repeating link works: The transmitter sends out the initial control signal to the first repeater, the first repeater transmits the control signal to the receivers after it receives the control signal from the transmitter, then it pauses and send out a repeating signal down the link to tell the next repeater to relay the signal. This is a chain link. When one of the repeaters stops working, the signal can only be relayed up to this repeater. The signal relaying down the link starting from this repeater will stop and all the repeater after this one will not work. OPERATION Warning: Make sure your power supply voltage matches the repeater power supply requirements: 120 VAC or 208 to 277 VAC. Otherwise there is electrical shock hazard. After the repeater power supply is properly wired and its voltage matches the line power voltage, turn the repeater power on. The repeater will work automatically. The repeater will remain in a stand-by mode until it successfully receives a signal, then it will send out the control signal and repeating signal automatically. TROUBLESHOOTING The signal can not be relayed: • No power to the repeater. Check if the light LED 2 for the power supply is on. If it is not, no power to the repeater. • Watch the signal relay light LED 1. When the repeater works, the signal relay light LED 1 flashes twice in a very short period time. If it does not, the repeater does not receive the repeating signal. Check to make sure the repeating address from the upper link repeater matches the receiving address on this repeater. If it does match, then proceed to check the repeater on the upper link to make sure it is working properly. • The repeaters’ addresses are not coded properly. Follow all the rules in this instruction under INSTALLATION, especially those under IMPORTANT. The receiver can not be controlled by the repeater: • Make sure the repeater works properly. See above for details. • Make sure the control address on the repeater matches the receivers’ address. …

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Wrep-4c-v1.1.sch-1 mon apr 08.08:54:04.2006 Receivingantenna Transmittingantenna TDL9927receives the radiofrequency signal and Pt2272de-codesthe signal. Addressthroughjumpers PT2262 encoder (for repeater) PT2262 for address code(for receivers) Output selectionby jumpers Modulator and amplifier Power supply indicating light Fuse Power supply Transient voltage suppression Transformer Rectification Voltagestabilization(12V) Voltagestabilization(5V) Addressthroughjumpers

EMCC DR. RAŠEK ™ Applicant: Orion Energy Systems Ltd. FCC ID: UTV WREP4CRT REPLY TO TCB COMMENTS 1. See attached documents for RF daughter board: TDL-9927A-PCB.pdf and TDL-9927A- SCH.pdf. 2. Have included photos of the rear side of the RF daughter board, see attached internal photos_modify.pdf. 3. There is a timer built into the transmitter. Once the relay closes, it will transmitter the signal for one second, then it will stop transmitting even though the relay is still closed. It will only transmit again for one second after the relays is released and closed again. It works like push button switch. If you push the button down, it will transmit for one second and then stop transmitting even though you still hold down the push button. After you release the push button and then push the button down again, it will transmit the signal again for one second. For the repeater, it has timer built into it too. After it successfully receives the signal (incoming signal address matches the receiving address on the repeater), it will idles 0.2 second. Then send out the control signal for the receivers for 1 second controlled by a timer built into the repeater, idles for another 0.2 second, then second the repeating signal for 1 second controlled by the timer built into the repeater. After this, it goes into idle mode again. Section 15.231(a)(2) was applied, see clause 6.2 of the attached modified test report ATE20062807.pdf. 4. The repeater has receiving address. The repeater can only receive the signal when the signal address matches the repeater receiving address. Then it will process the signal. Otherwise the repeater will remain idle and will not transmit. After it successfully receives the signal, it will idle for 0.2 second to make sure the previous one second signal is completely die out, then it will re-transmit the data with receiver address for 0.5 second. After that it idles for 0.2 second, transmit the data with the repeating address for the next repeater to receive the data for 0.5 second, then it goes into idle mode. The power levels are provided in the clause 4 of the attached test report ATE20062807.pdf. The repeater will not receive two signals within 5 seconds because this is a chain reaction. It can only receive the signal from the repeater right ahead of it. It can not receive any other signal because each repeater is individually addressed. The only time the repeater will receive the signal with 5 second is that the transmitter sends out more than one signal within 5 seconds. It is just like the push button remote control. If you push the bottom twice within 5 seconds, then the repeater will receive two signals within 5 second. It will repeat the signals as it usually does. When we do the control, it can be and will be avoided to transmit two signals with 5 seconds. EMCC DR. RAŠEK ™ 5. For one system, only one transmitter, multi repeaters and multi receivers. The transmitter only transmits for one second and the repeater only transmits two times for 0.5 second for each time. All of them at different time. I believe the duty factor for each of them should be the same. Here is how the system works: One system consists of one transmitter, multi repeaters and multi receivers. The transmitter transmits the signal for one second controlled by the timer on the transmitter, then the repeater receives the signal. After it receives the signal, it idles for 0.2 second, then it transmits the signal for 0.5 second to control the receivers. After that, it idles for 0.2 second, then transmit the signal with repeating address to relay the signal to the next repeater for 0.5 second and so on. The repeater just repeats the received message. 6. Duty factors are all the same. 7. Yes this is the first application of FCC ID of the applicant. He will apply for FCC ID for his transmitter later. 8. The repeater is manually programmable for its receiving, control and repeating addresses through jumpers. There are three addresses on one repeater. One is the receiving address. Only the signal with the address the same as the receiving address will be received and processed by the repeater. Then there is control address. After the repeater receives the signal successfully, it will idle for 0.2 second, then send out the data (on or off ) with the control address for 0.5 second. After that, it will idle for another 0.2 second, then send out the data for 0.5 second with a different repeating address for next repeater to receive the signal. 9. By the address code. Pls. note that the above technical explanations were described by the applicant. ATC only conducted testing accordingly. TCB COMMENTS 1. Please submit schematics for the RF daughter board that is mounted in upright position. 2. Please submit internal photos of the rear side of the RF daughter board. 3. This is not a manually operated transmitter as stated in the test report, but an automatically activated transmitter. Therefore Section 15.231(a)(2) applies "A transmitter activated automatically shall cease transmission within 5 seconds after activation." 4. Based upon this being a repeater, a detailed description on how this device operates and ensures compliance with 15.231(a) timing requirements and power levels should be provided. Note that to be allowed as a repeater under Part 15 the device may only transmit after receiving, demodulating, and recognizing the incoming signal prior to retransmission. The theory should explain how the device meets these requirements. EMCC DR. RAŠEK ™ Also, if the repeater received 2 messages in < 5 seconds, does it retransmit both messages or one message? Does it transmit them as a group or space them apart. If it were to receive a message with a duration of > 5 seconds, how does it handle it. Please explain? 5. The various transmitters of the system most likely have different duty factors. It is uncertain how worst case duty factors for this device can adequately be determined and assured for all types of devices …

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FCC MARKING/LABEL FOR PART15 30mm Radio Frequency(RF) Repeater FCC ID: UTVWREP4CRT 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. Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipmen Orion Energy Systems Ltd. Model No.: WREP-4C Operation Frequency: 315MHz 30mm

RepeaterConfiguration: Repeater has four modules, RF signal receiving and de-coding,MCU, PT2262 encoding and RF transmission and power supply.Operation principles: 1) TDL9927 receives the RF signal. AfterPt227 de-codes the signal, the data are transferred to MCU 2) MCU processes the data, select and control the encoders. One encoder for receiver,another encoder for repeater down the link. 3) PT2262 encodes the data and address. After that, the waveform is modulated,amplified and transmitted through the antenna. 4) Power suppliers to supply the power needed for each module. ： Receivingantenna TDL9927receives radiofrequency signal Pt2272de-codesthe signal Power supply Addressthroughjumpers Pt2262 encoder(for repeater signal) PT2262 encoder(for receiver signal) Addressthroughjumpers Transmissionantenna RFmodulatorandamplifiercircuit Addressthroughjumpers

12345678 A B C D 87654321 D C B A Title NumberRevisionSize A3 Date:13-Nov-2006Sheet of File:Drawn By: A0 1 A1 2 A2 3 A3 4 A4 5 A5 6 D5 7 D4 8 VSS 9 D3 10 D2 11 D1 12 D0 13 Din 14 OSC2 15 OSC1 16 VT 17 VCC 18 U6 SC2272-M6 RC 270K 1 2 3 4 5 6 7 8 J1 CON10 R15 1K RC2 1.5M R14 1K R16 1K 1 2 3 4 BR 2W10 C6 470uF/25V 1 2 3 POWER IN C5 1000uF/50V I N 1 G N D 2 O U T 3 IC5 LM78012 VCC+12V TRANS EI35 C7 104 C4 104 RST 1 P3_0 2 P3_1 3 XTAL2 4 XTAL1 5 P3_2 6 P3_3 7 P3_4 8 P3_5 9 GND 10 P3_7 11 P1_0 12 P1_1 13 P1_2 14 P1_3 15 P1_4 16 P1_5 17 P1_6 18 P1_7 19 VCC 20 U3 STC12C5404 VCC+5V I N 1 G N D 2 O U T 3 U4 LM78L05 C8 220uF/16V C9 104 C10 104 VCC+5V R7 1K R12 1K R17 1K R13 1K A N T 1 G N D 2 V C C 5 G N D 3 T A D A 4 RF TDL9927 FUSE 1A/250VAC VCC+5V LED2 R19 4.7K A0 1 A1 2 A2 3 A3 4 A4 5 A5 6 D5 7 D4 8 VSS 9 D3 10 D2 11 D1 12 D0 13 TE 14 OSC2 15 OSC1 16 DOUT 17 VCC 18 U1 PT2262 R2 47K RC1 1.5M LED1 LED R18 4.7K R9 1K R8 1K R6 1K R5 1K 1 2 3 4 5 6 7 8 J3 VCC+5V R1 47K A0 1 A1 2 A2 3 A3 4 A4 5 A5 6 D5 7 D4 8 VSS 9 D3 10 D2 11 D1 12 D0 13 TE 14 OSC2 15 OSC1 16 DOUT 17 VCC 18 U2 PT2262 R10 1K 1 2 3 4 5 6 7 8 J2 VCC+5V VCC+5V VCC+5V RV1 5D471 RV2 5D241 R11 10K R4 10K R20 10K R3 18K Q1 8050 3 1 2 Y1 R315 Q2 RF VCC+12V C2 7P L1 4.5*7.5T L2 4.5*4.5T C1 100PF ANT1 C20 5.6PF C21 L4 0R L3 47nH C22 15P VCC+5V VCC+12V ANT2 ANTENNA Wrep-4c-v1.1.sch-1 mon apr 08.08:54:04.2006

     
            
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Page 1 of 33 FCC ID: UTVWREP4CRT ACCURATE TECHNOLOGY CO. LTD REPORT NO. ATE20062807 APPLICATION CERTIFICATION On Behalf of Orion Energy Systems Ltd. Radio Frequency (RF) Repeater Model No.: WREP-4C FCC ID: UTVWREP4CRT Prepared for : Orion Energy Systems Ltd. Address : 1204 Pilgrim Road, Plymouth, WI 53073, USA Prepared by : ACCURATE TECHNOLOGY CO. LTD Address : F1, Bldg. A, Changyuan New Material Port, Keyuan Rd. Science & Industry Park, Nanshan, Shenzhen, Guangdong P.R. China Tel: (0755) 26503290 Fax: (0755) 26503396 Report Number : ATE20062807 Date of Test : December 26, 2006 Date of Report : December 29, 2006 Page 2 of 33 FCC ID: UTVWREP4CRT ACCURATE TECHNOLOGY CO. LTD REPORT NO. ATE20062807 TABLE OF CONTENTS Description Page Test Report Certification 1. GENERAL INFORMATION.......................................................................................................... 4 1.1. Description of Device (EUT)....................................................................................................................4 1.2. Description of Test Facility......................................................................................................................4 1.3. Measurement Uncertainty.........................................................................................................................4 2. MEASURING DEVICE AND TEST EQUIPMENT..................................................................... 5 3. CONDUCTED EMISSION FOR FCC PART 15 SECTION 15.207(A)...................................... 6 3.1. Block Diagram of Test Setup....................................................................................................................6 3.2. The Emission Limit For Section 15.207(a)..............................................................................................6 3.3. EUT Configuration on Measurement.......................................................................................................7 3.4. Operating Condition of EUT....................................................................................................................7 3.5. Test Procedure..........................................................................................................................................7 3.6. Power Line Conducted Emission Measurement Results..........................................................................8 4. THE FIELD STRENGTH OF RADIATION EMISSION............................................................ 9 4.1. Block Diagram of Test Setup....................................................................................................................9 4.2. The Field Strength of Radiation Emission Measurement Limits..............................................................9 4.3. Configuration of EUT on Measurement.................................................................................................10 4.4. Operating Condition of EUT..................................................................................................................10 4.5. Test Procedure........................................................................................................................................10 4.6. The Field Strength of Radiation Emission Measurement Results..........................................................11 5. 20DB OCCUPIED BANDWIDTH................................................................................................ 13 5.1. Block Diagram of Test Setup..................................................................................................................13 5.2. The Bandwidth of Emission Limit According To FCC Part 15 Section 15.231(c)................................13 5.3. EUT Configuration on Measurement.....................................................................................................14 5.4. Operating Condition of EUT..................................................................................................................14 5.5. Test Procedure........................................................................................................................................14 5.6. Measurement Result...............................................................................................................................15 6. RELEASE TIME MEASUREMENT............................................................................................ 16 6.1. Block Diagram of Test Setup..................................................................................................................16 6.2. Release Time Measurement According To FCC Part 15 Section 15.231(a)..........................................16 6.3. EUT Configuration on Measurement.....................................................................................................17 6.4. Operating Condition of EUT..................................................................................................................17 6.5. Test Procedure........................................................................................................................................17 6.6. Measurement Result...............................................................................................................................18 7. AVERAGE FACTOR MEASUREMENT.................................................................................... 19 7.1. Block Diagram of Test Setup..................................................................................................................19 7.2. Average factor Measurement..................................................................................................................19 7.3. EUT Configuration on Measurement.....................................................................................................20 7.4. Operating Condition of EUT.....................................................…

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